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1935 lines
55 KiB
1935 lines
55 KiB
//
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// PKCS12.cs: PKCS 12 - Personal Information Exchange Syntax
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//
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// Author:
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// Sebastien Pouliot <sebastien@xamarin.com>
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//
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// (C) 2003 Motus Technologies Inc. (http://www.motus.com)
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// Copyright (C) 2004,2005,2006 Novell Inc. (http://www.novell.com)
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// Copyright 2013 Xamarin Inc. (http://www.xamarin.com)
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//
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// Key derivation translated from Bouncy Castle JCE (http://www.bouncycastle.org/)
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// See bouncycastle.txt for license.
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections;
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using System.IO;
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using System.Security.Cryptography;
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using System.Text;
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namespace Emby.Server.Core.Cryptography
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{
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public class PKCS5 {
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public const string pbeWithMD2AndDESCBC = "1.2.840.113549.1.5.1";
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public const string pbeWithMD5AndDESCBC = "1.2.840.113549.1.5.3";
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public const string pbeWithMD2AndRC2CBC = "1.2.840.113549.1.5.4";
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public const string pbeWithMD5AndRC2CBC = "1.2.840.113549.1.5.6";
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public const string pbeWithSHA1AndDESCBC = "1.2.840.113549.1.5.10";
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public const string pbeWithSHA1AndRC2CBC = "1.2.840.113549.1.5.11";
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public PKCS5 () {}
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}
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public class PKCS9 {
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public const string friendlyName = "1.2.840.113549.1.9.20";
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public const string localKeyId = "1.2.840.113549.1.9.21";
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public PKCS9 () {}
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}
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internal class SafeBag {
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private string _bagOID;
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private ASN1 _asn1;
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public SafeBag(string bagOID, ASN1 asn1) {
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_bagOID = bagOID;
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_asn1 = asn1;
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}
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public string BagOID {
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get { return _bagOID; }
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}
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public ASN1 ASN1 {
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get { return _asn1; }
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}
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}
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public class PKCS12 : ICloneable {
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public const string pbeWithSHAAnd128BitRC4 = "1.2.840.113549.1.12.1.1";
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public const string pbeWithSHAAnd40BitRC4 = "1.2.840.113549.1.12.1.2";
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public const string pbeWithSHAAnd3KeyTripleDESCBC = "1.2.840.113549.1.12.1.3";
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public const string pbeWithSHAAnd2KeyTripleDESCBC = "1.2.840.113549.1.12.1.4";
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public const string pbeWithSHAAnd128BitRC2CBC = "1.2.840.113549.1.12.1.5";
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public const string pbeWithSHAAnd40BitRC2CBC = "1.2.840.113549.1.12.1.6";
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// bags
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public const string keyBag = "1.2.840.113549.1.12.10.1.1";
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public const string pkcs8ShroudedKeyBag = "1.2.840.113549.1.12.10.1.2";
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public const string certBag = "1.2.840.113549.1.12.10.1.3";
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public const string crlBag = "1.2.840.113549.1.12.10.1.4";
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public const string secretBag = "1.2.840.113549.1.12.10.1.5";
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public const string safeContentsBag = "1.2.840.113549.1.12.10.1.6";
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// types
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public const string x509Certificate = "1.2.840.113549.1.9.22.1";
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public const string sdsiCertificate = "1.2.840.113549.1.9.22.2";
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public const string x509Crl = "1.2.840.113549.1.9.23.1";
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// Adapted from BouncyCastle PKCS12ParametersGenerator.java
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public class DeriveBytes {
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public enum Purpose {
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Key,
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IV,
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MAC
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}
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static private byte[] keyDiversifier = { 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 };
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static private byte[] ivDiversifier = { 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2 };
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static private byte[] macDiversifier = { 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3 };
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private string _hashName;
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private int _iterations;
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private byte[] _password;
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private byte[] _salt;
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public DeriveBytes () {}
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public string HashName {
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get { return _hashName; }
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set { _hashName = value; }
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}
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public int IterationCount {
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get { return _iterations; }
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set { _iterations = value; }
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}
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public byte[] Password {
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get { return (byte[]) _password.Clone (); }
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set {
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if (value == null)
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_password = new byte [0];
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else
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_password = (byte[]) value.Clone ();
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}
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}
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public byte[] Salt {
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get { return (byte[]) _salt.Clone (); }
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set {
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if (value != null)
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_salt = (byte[]) value.Clone ();
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else
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_salt = null;
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}
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}
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private void Adjust (byte[] a, int aOff, byte[] b)
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{
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int x = (b[b.Length - 1] & 0xff) + (a [aOff + b.Length - 1] & 0xff) + 1;
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a [aOff + b.Length - 1] = (byte) x;
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x >>= 8;
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for (int i = b.Length - 2; i >= 0; i--) {
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x += (b [i] & 0xff) + (a [aOff + i] & 0xff);
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a [aOff + i] = (byte) x;
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x >>= 8;
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}
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}
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private byte[] Derive (byte[] diversifier, int n)
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{
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HashAlgorithm digest = PKCS1.CreateFromName (_hashName);
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int u = (digest.HashSize >> 3); // div 8
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int v = 64;
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byte[] dKey = new byte [n];
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byte[] S;
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if ((_salt != null) && (_salt.Length != 0)) {
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S = new byte[v * ((_salt.Length + v - 1) / v)];
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for (int i = 0; i != S.Length; i++) {
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S[i] = _salt[i % _salt.Length];
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}
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}
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else {
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S = new byte[0];
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}
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byte[] P;
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if ((_password != null) && (_password.Length != 0)) {
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P = new byte[v * ((_password.Length + v - 1) / v)];
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for (int i = 0; i != P.Length; i++) {
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P[i] = _password[i % _password.Length];
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}
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}
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else {
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P = new byte[0];
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}
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byte[] I = new byte [S.Length + P.Length];
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Buffer.BlockCopy (S, 0, I, 0, S.Length);
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Buffer.BlockCopy (P, 0, I, S.Length, P.Length);
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byte[] B = new byte[v];
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int c = (n + u - 1) / u;
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for (int i = 1; i <= c; i++) {
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digest.TransformBlock (diversifier, 0, diversifier.Length, diversifier, 0);
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digest.TransformFinalBlock (I, 0, I.Length);
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byte[] A = digest.Hash;
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digest.Initialize ();
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for (int j = 1; j != _iterations; j++) {
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A = digest.ComputeHash (A, 0, A.Length);
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}
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for (int j = 0; j != B.Length; j++) {
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B [j] = A [j % A.Length];
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}
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for (int j = 0; j != I.Length / v; j++) {
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Adjust (I, j * v, B);
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}
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if (i == c) {
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Buffer.BlockCopy(A, 0, dKey, (i - 1) * u, dKey.Length - ((i - 1) * u));
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}
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else {
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Buffer.BlockCopy(A, 0, dKey, (i - 1) * u, A.Length);
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}
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}
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return dKey;
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}
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public byte[] DeriveKey (int size)
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{
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return Derive (keyDiversifier, size);
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}
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public byte[] DeriveIV (int size)
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{
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return Derive (ivDiversifier, size);
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}
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public byte[] DeriveMAC (int size)
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{
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return Derive (macDiversifier, size);
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}
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}
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const int recommendedIterationCount = 2000;
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//private int _version;
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private byte[] _password;
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private ArrayList _keyBags;
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private ArrayList _secretBags;
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private X509CertificateCollection _certs;
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private bool _keyBagsChanged;
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private bool _secretBagsChanged;
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private bool _certsChanged;
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private int _iterations;
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private ArrayList _safeBags;
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private RandomNumberGenerator _rng;
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// constructors
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public PKCS12 ()
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{
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_iterations = recommendedIterationCount;
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_keyBags = new ArrayList ();
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_secretBags = new ArrayList ();
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_certs = new X509CertificateCollection ();
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_keyBagsChanged = false;
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_secretBagsChanged = false;
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_certsChanged = false;
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_safeBags = new ArrayList ();
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}
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public PKCS12 (byte[] data)
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: this ()
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{
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Password = null;
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Decode (data);
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}
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/*
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* PFX ::= SEQUENCE {
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* version INTEGER {v3(3)}(v3,...),
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* authSafe ContentInfo,
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* macData MacData OPTIONAL
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* }
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*
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* MacData ::= SEQUENCE {
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* mac DigestInfo,
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* macSalt OCTET STRING,
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* iterations INTEGER DEFAULT 1
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* -- Note: The default is for historical reasons and its use is deprecated. A higher
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* -- value, like 1024 is recommended.
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* }
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*
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* SafeContents ::= SEQUENCE OF SafeBag
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*
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* SafeBag ::= SEQUENCE {
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* bagId BAG-TYPE.&id ({PKCS12BagSet}),
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* bagValue [0] EXPLICIT BAG-TYPE.&Type({PKCS12BagSet}{@bagId}),
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* bagAttributes SET OF PKCS12Attribute OPTIONAL
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* }
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*/
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public PKCS12 (byte[] data, string password)
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: this ()
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{
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Password = password;
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Decode (data);
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}
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public PKCS12 (byte[] data, byte[] password)
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: this ()
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{
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_password = password;
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Decode (data);
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}
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private void Decode (byte[] data)
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{
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ASN1 pfx = new ASN1 (data);
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if (pfx.Tag != 0x30)
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throw new ArgumentException ("invalid data");
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ASN1 version = pfx [0];
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if (version.Tag != 0x02)
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throw new ArgumentException ("invalid PFX version");
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//_version = version.Value [0];
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PKCS7.ContentInfo authSafe = new PKCS7.ContentInfo (pfx [1]);
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if (authSafe.ContentType != PKCS7.Oid.data)
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throw new ArgumentException ("invalid authenticated safe");
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// now that we know it's a PKCS#12 file, check the (optional) MAC
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// before decoding anything else in the file
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if (pfx.Count > 2) {
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ASN1 macData = pfx [2];
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if (macData.Tag != 0x30)
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throw new ArgumentException ("invalid MAC");
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ASN1 mac = macData [0];
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if (mac.Tag != 0x30)
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throw new ArgumentException ("invalid MAC");
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ASN1 macAlgorithm = mac [0];
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string macOid = ASN1Convert.ToOid (macAlgorithm [0]);
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if (macOid != "1.3.14.3.2.26")
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throw new ArgumentException ("unsupported HMAC");
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byte[] macValue = mac [1].Value;
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ASN1 macSalt = macData [1];
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if (macSalt.Tag != 0x04)
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throw new ArgumentException ("missing MAC salt");
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_iterations = 1; // default value
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if (macData.Count > 2) {
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ASN1 iters = macData [2];
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if (iters.Tag != 0x02)
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throw new ArgumentException ("invalid MAC iteration");
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_iterations = ASN1Convert.ToInt32 (iters);
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}
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byte[] authSafeData = authSafe.Content [0].Value;
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byte[] calculatedMac = MAC (_password, macSalt.Value, _iterations, authSafeData);
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if (!Compare (macValue, calculatedMac)) {
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byte[] nullPassword = {0, 0};
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calculatedMac = MAC(nullPassword, macSalt.Value, _iterations, authSafeData);
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if (!Compare (macValue, calculatedMac))
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throw new CryptographicException ("Invalid MAC - file may have been tampe red!");
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_password = nullPassword;
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}
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}
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// we now returns to our original presentation - PFX
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ASN1 authenticatedSafe = new ASN1 (authSafe.Content [0].Value);
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for (int i=0; i < authenticatedSafe.Count; i++) {
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PKCS7.ContentInfo ci = new PKCS7.ContentInfo (authenticatedSafe [i]);
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switch (ci.ContentType) {
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case PKCS7.Oid.data:
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// unencrypted (by PKCS#12)
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ASN1 safeContents = new ASN1 (ci.Content [0].Value);
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for (int j=0; j < safeContents.Count; j++) {
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ASN1 safeBag = safeContents [j];
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ReadSafeBag (safeBag);
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}
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break;
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case PKCS7.Oid.encryptedData:
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// password encrypted
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PKCS7.EncryptedData ed = new PKCS7.EncryptedData (ci.Content [0]);
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ASN1 decrypted = new ASN1 (Decrypt (ed));
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for (int j=0; j < decrypted.Count; j++) {
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ASN1 safeBag = decrypted [j];
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ReadSafeBag (safeBag);
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}
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break;
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case PKCS7.Oid.envelopedData:
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// public key encrypted
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throw new NotImplementedException ("public key encrypted");
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default:
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throw new ArgumentException ("unknown authenticatedSafe");
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}
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}
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}
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~PKCS12 ()
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{
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if (_password != null) {
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Array.Clear (_password, 0, _password.Length);
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}
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_password = null;
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}
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// properties
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public string Password {
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set {
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// Clear old password.
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if (_password != null)
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Array.Clear (_password, 0, _password.Length);
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_password = null;
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if (value != null) {
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if (value.Length > 0) {
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int size = value.Length;
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int nul = 0;
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if (size < MaximumPasswordLength) {
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// if not present, add space for a NULL (0x00) character
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if (value[size - 1] != 0x00)
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nul = 1;
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} else {
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size = MaximumPasswordLength;
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}
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_password = new byte[(size + nul) << 1]; // double for unicode
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Encoding.BigEndianUnicode.GetBytes (value, 0, size, _password, 0);
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} else {
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// double-byte (Unicode) NULL (0x00) - see bug #79617
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_password = new byte[2];
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}
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}
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}
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}
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public int IterationCount {
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get { return _iterations; }
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set { _iterations = value; }
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}
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public ArrayList Keys {
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get {
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if (_keyBagsChanged) {
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_keyBags.Clear ();
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foreach (SafeBag sb in _safeBags) {
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if (sb.BagOID.Equals (keyBag)) {
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ASN1 safeBag = sb.ASN1;
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ASN1 bagValue = safeBag [1];
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PKCS8.PrivateKeyInfo pki = new PKCS8.PrivateKeyInfo (bagValue.Value);
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byte[] privateKey = pki.PrivateKey;
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switch (privateKey [0]) {
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case 0x02:
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DSAParameters p = new DSAParameters (); // FIXME
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_keyBags.Add (PKCS8.PrivateKeyInfo.DecodeDSA (privateKey, p));
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break;
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case 0x30:
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_keyBags.Add (PKCS8.PrivateKeyInfo.DecodeRSA (privateKey));
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break;
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default:
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break;
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}
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Array.Clear (privateKey, 0, privateKey.Length);
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} else if (sb.BagOID.Equals (pkcs8ShroudedKeyBag)) {
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ASN1 safeBag = sb.ASN1;
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ASN1 bagValue = safeBag [1];
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PKCS8.EncryptedPrivateKeyInfo epki = new PKCS8.EncryptedPrivateKeyInfo (bagValue.Value);
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byte[] decrypted = Decrypt (epki.Algorithm, epki.Salt, epki.IterationCount, epki.EncryptedData);
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PKCS8.PrivateKeyInfo pki = new PKCS8.PrivateKeyInfo (decrypted);
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byte[] privateKey = pki.PrivateKey;
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switch (privateKey [0]) {
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case 0x02:
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DSAParameters p = new DSAParameters (); // FIXME
|
|
_keyBags.Add (PKCS8.PrivateKeyInfo.DecodeDSA (privateKey, p));
|
|
break;
|
|
case 0x30:
|
|
_keyBags.Add (PKCS8.PrivateKeyInfo.DecodeRSA (privateKey));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
Array.Clear (decrypted, 0, decrypted.Length);
|
|
}
|
|
}
|
|
_keyBagsChanged = false;
|
|
}
|
|
return ArrayList.ReadOnly(_keyBags);
|
|
}
|
|
}
|
|
|
|
public ArrayList Secrets {
|
|
get {
|
|
if (_secretBagsChanged) {
|
|
_secretBags.Clear ();
|
|
foreach (SafeBag sb in _safeBags) {
|
|
if (sb.BagOID.Equals (secretBag)) {
|
|
ASN1 safeBag = sb.ASN1;
|
|
ASN1 bagValue = safeBag [1];
|
|
byte[] secret = bagValue.Value;
|
|
_secretBags.Add(secret);
|
|
}
|
|
}
|
|
_secretBagsChanged = false;
|
|
}
|
|
return ArrayList.ReadOnly(_secretBags);
|
|
}
|
|
}
|
|
|
|
public X509CertificateCollection Certificates {
|
|
get {
|
|
if (_certsChanged) {
|
|
_certs.Clear ();
|
|
foreach (SafeBag sb in _safeBags) {
|
|
if (sb.BagOID.Equals (certBag)) {
|
|
ASN1 safeBag = sb.ASN1;
|
|
ASN1 bagValue = safeBag [1];
|
|
PKCS7.ContentInfo cert = new PKCS7.ContentInfo (bagValue.Value);
|
|
_certs.Add (new X509Certificate (cert.Content [0].Value));
|
|
}
|
|
}
|
|
_certsChanged = false;
|
|
}
|
|
return _certs;
|
|
}
|
|
}
|
|
|
|
internal RandomNumberGenerator RNG {
|
|
get {
|
|
if (_rng == null)
|
|
_rng = RandomNumberGenerator.Create ();
|
|
return _rng;
|
|
}
|
|
}
|
|
|
|
// private methods
|
|
|
|
private bool Compare (byte[] expected, byte[] actual)
|
|
{
|
|
bool compare = false;
|
|
if (expected.Length == actual.Length) {
|
|
for (int i=0; i < expected.Length; i++) {
|
|
if (expected [i] != actual [i])
|
|
return false;
|
|
}
|
|
compare = true;
|
|
}
|
|
return compare;
|
|
}
|
|
|
|
private SymmetricAlgorithm GetSymmetricAlgorithm (string algorithmOid, byte[] salt, int iterationCount)
|
|
{
|
|
string algorithm = null;
|
|
int keyLength = 8; // 64 bits (default)
|
|
int ivLength = 8; // 64 bits (default)
|
|
|
|
PKCS12.DeriveBytes pd = new PKCS12.DeriveBytes ();
|
|
pd.Password = _password;
|
|
pd.Salt = salt;
|
|
pd.IterationCount = iterationCount;
|
|
|
|
switch (algorithmOid) {
|
|
case PKCS5.pbeWithMD2AndDESCBC: // no unit test available
|
|
pd.HashName = "MD2";
|
|
algorithm = "DES";
|
|
break;
|
|
case PKCS5.pbeWithMD5AndDESCBC: // no unit test available
|
|
pd.HashName = "MD5";
|
|
algorithm = "DES";
|
|
break;
|
|
case PKCS5.pbeWithMD2AndRC2CBC: // no unit test available
|
|
// TODO - RC2-CBC-Parameter (PKCS5)
|
|
// if missing default to 32 bits !!!
|
|
pd.HashName = "MD2";
|
|
algorithm = "RC2";
|
|
keyLength = 4; // default
|
|
break;
|
|
case PKCS5.pbeWithMD5AndRC2CBC: // no unit test available
|
|
// TODO - RC2-CBC-Parameter (PKCS5)
|
|
// if missing default to 32 bits !!!
|
|
pd.HashName = "MD5";
|
|
algorithm = "RC2";
|
|
keyLength = 4; // default
|
|
break;
|
|
case PKCS5.pbeWithSHA1AndDESCBC: // no unit test available
|
|
pd.HashName = "SHA1";
|
|
algorithm = "DES";
|
|
break;
|
|
case PKCS5.pbeWithSHA1AndRC2CBC: // no unit test available
|
|
// TODO - RC2-CBC-Parameter (PKCS5)
|
|
// if missing default to 32 bits !!!
|
|
pd.HashName = "SHA1";
|
|
algorithm = "RC2";
|
|
keyLength = 4; // default
|
|
break;
|
|
case PKCS12.pbeWithSHAAnd128BitRC4: // no unit test available
|
|
pd.HashName = "SHA1";
|
|
algorithm = "RC4";
|
|
keyLength = 16;
|
|
ivLength = 0; // N/A
|
|
break;
|
|
case PKCS12.pbeWithSHAAnd40BitRC4: // no unit test available
|
|
pd.HashName = "SHA1";
|
|
algorithm = "RC4";
|
|
keyLength = 5;
|
|
ivLength = 0; // N/A
|
|
break;
|
|
case PKCS12.pbeWithSHAAnd3KeyTripleDESCBC:
|
|
pd.HashName = "SHA1";
|
|
algorithm = "TripleDES";
|
|
keyLength = 24;
|
|
break;
|
|
case PKCS12.pbeWithSHAAnd2KeyTripleDESCBC: // no unit test available
|
|
pd.HashName = "SHA1";
|
|
algorithm = "TripleDES";
|
|
keyLength = 16;
|
|
break;
|
|
case PKCS12.pbeWithSHAAnd128BitRC2CBC: // no unit test available
|
|
pd.HashName = "SHA1";
|
|
algorithm = "RC2";
|
|
keyLength = 16;
|
|
break;
|
|
case PKCS12.pbeWithSHAAnd40BitRC2CBC:
|
|
pd.HashName = "SHA1";
|
|
algorithm = "RC2";
|
|
keyLength = 5;
|
|
break;
|
|
default:
|
|
throw new NotSupportedException ("unknown oid " + algorithm);
|
|
}
|
|
|
|
SymmetricAlgorithm sa = null;
|
|
sa = SymmetricAlgorithm.Create(algorithm);
|
|
sa.Key = pd.DeriveKey (keyLength);
|
|
// IV required only for block ciphers (not stream ciphers)
|
|
if (ivLength > 0) {
|
|
sa.IV = pd.DeriveIV (ivLength);
|
|
sa.Mode = CipherMode.CBC;
|
|
}
|
|
return sa;
|
|
}
|
|
|
|
public byte[] Decrypt (string algorithmOid, byte[] salt, int iterationCount, byte[] encryptedData)
|
|
{
|
|
SymmetricAlgorithm sa = null;
|
|
byte[] result = null;
|
|
try {
|
|
sa = GetSymmetricAlgorithm (algorithmOid, salt, iterationCount);
|
|
ICryptoTransform ct = sa.CreateDecryptor ();
|
|
result = ct.TransformFinalBlock (encryptedData, 0, encryptedData.Length);
|
|
}
|
|
finally {
|
|
if (sa != null)
|
|
sa.Clear ();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
public byte[] Decrypt (PKCS7.EncryptedData ed)
|
|
{
|
|
return Decrypt (ed.EncryptionAlgorithm.ContentType,
|
|
ed.EncryptionAlgorithm.Content [0].Value,
|
|
ASN1Convert.ToInt32 (ed.EncryptionAlgorithm.Content [1]),
|
|
ed.EncryptedContent);
|
|
}
|
|
|
|
public byte[] Encrypt (string algorithmOid, byte[] salt, int iterationCount, byte[] data)
|
|
{
|
|
byte[] result = null;
|
|
using (SymmetricAlgorithm sa = GetSymmetricAlgorithm (algorithmOid, salt, iterationCount)) {
|
|
ICryptoTransform ct = sa.CreateEncryptor ();
|
|
result = ct.TransformFinalBlock (data, 0, data.Length);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
private DSAParameters GetExistingParameters (out bool found)
|
|
{
|
|
foreach (X509Certificate cert in Certificates) {
|
|
// FIXME: that won't work if parts of the parameters are missing
|
|
if (cert.KeyAlgorithmParameters != null) {
|
|
DSA dsa = cert.DSA;
|
|
if (dsa != null) {
|
|
found = true;
|
|
return dsa.ExportParameters (false);
|
|
}
|
|
}
|
|
}
|
|
found = false;
|
|
return new DSAParameters ();
|
|
}
|
|
|
|
private void AddPrivateKey (PKCS8.PrivateKeyInfo pki)
|
|
{
|
|
byte[] privateKey = pki.PrivateKey;
|
|
switch (privateKey [0]) {
|
|
case 0x02:
|
|
bool found;
|
|
DSAParameters p = GetExistingParameters (out found);
|
|
if (found) {
|
|
_keyBags.Add (PKCS8.PrivateKeyInfo.DecodeDSA (privateKey, p));
|
|
}
|
|
break;
|
|
case 0x30:
|
|
_keyBags.Add (PKCS8.PrivateKeyInfo.DecodeRSA (privateKey));
|
|
break;
|
|
default:
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
throw new CryptographicException ("Unknown private key format");
|
|
}
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
}
|
|
|
|
private void ReadSafeBag (ASN1 safeBag)
|
|
{
|
|
if (safeBag.Tag != 0x30)
|
|
throw new ArgumentException ("invalid safeBag");
|
|
|
|
ASN1 bagId = safeBag [0];
|
|
if (bagId.Tag != 0x06)
|
|
throw new ArgumentException ("invalid safeBag id");
|
|
|
|
ASN1 bagValue = safeBag [1];
|
|
string oid = ASN1Convert.ToOid (bagId);
|
|
switch (oid) {
|
|
case keyBag:
|
|
// NEED UNIT TEST
|
|
AddPrivateKey (new PKCS8.PrivateKeyInfo (bagValue.Value));
|
|
break;
|
|
case pkcs8ShroudedKeyBag:
|
|
PKCS8.EncryptedPrivateKeyInfo epki = new PKCS8.EncryptedPrivateKeyInfo (bagValue.Value);
|
|
byte[] decrypted = Decrypt (epki.Algorithm, epki.Salt, epki.IterationCount, epki.EncryptedData);
|
|
AddPrivateKey (new PKCS8.PrivateKeyInfo (decrypted));
|
|
Array.Clear (decrypted, 0, decrypted.Length);
|
|
break;
|
|
case certBag:
|
|
PKCS7.ContentInfo cert = new PKCS7.ContentInfo (bagValue.Value);
|
|
if (cert.ContentType != x509Certificate)
|
|
throw new NotSupportedException ("unsupport certificate type");
|
|
X509Certificate x509 = new X509Certificate (cert.Content [0].Value);
|
|
_certs.Add (x509);
|
|
break;
|
|
case crlBag:
|
|
// TODO
|
|
break;
|
|
case secretBag:
|
|
byte[] secret = bagValue.Value;
|
|
_secretBags.Add(secret);
|
|
break;
|
|
case safeContentsBag:
|
|
// TODO - ? recurse ?
|
|
break;
|
|
default:
|
|
throw new ArgumentException ("unknown safeBag oid");
|
|
}
|
|
|
|
if (safeBag.Count > 2) {
|
|
ASN1 bagAttributes = safeBag [2];
|
|
if (bagAttributes.Tag != 0x31)
|
|
throw new ArgumentException ("invalid safeBag attributes id");
|
|
|
|
for (int i = 0; i < bagAttributes.Count; i++) {
|
|
ASN1 pkcs12Attribute = bagAttributes[i];
|
|
|
|
if (pkcs12Attribute.Tag != 0x30)
|
|
throw new ArgumentException ("invalid PKCS12 attributes id");
|
|
|
|
ASN1 attrId = pkcs12Attribute [0];
|
|
if (attrId.Tag != 0x06)
|
|
throw new ArgumentException ("invalid attribute id");
|
|
|
|
string attrOid = ASN1Convert.ToOid (attrId);
|
|
|
|
ASN1 attrValues = pkcs12Attribute[1];
|
|
for (int j = 0; j < attrValues.Count; j++) {
|
|
ASN1 attrValue = attrValues[j];
|
|
|
|
switch (attrOid) {
|
|
case PKCS9.friendlyName:
|
|
if (attrValue.Tag != 0x1e)
|
|
throw new ArgumentException ("invalid attribute value id");
|
|
break;
|
|
case PKCS9.localKeyId:
|
|
if (attrValue.Tag != 0x04)
|
|
throw new ArgumentException ("invalid attribute value id");
|
|
break;
|
|
default:
|
|
// Unknown OID -- don't check Tag
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
_safeBags.Add (new SafeBag(oid, safeBag));
|
|
}
|
|
|
|
private ASN1 Pkcs8ShroudedKeyBagSafeBag (AsymmetricAlgorithm aa, IDictionary attributes)
|
|
{
|
|
PKCS8.PrivateKeyInfo pki = new PKCS8.PrivateKeyInfo ();
|
|
if (aa is RSA) {
|
|
pki.Algorithm = "1.2.840.113549.1.1.1";
|
|
pki.PrivateKey = PKCS8.PrivateKeyInfo.Encode ((RSA)aa);
|
|
}
|
|
else if (aa is DSA) {
|
|
pki.Algorithm = null;
|
|
pki.PrivateKey = PKCS8.PrivateKeyInfo.Encode ((DSA)aa);
|
|
}
|
|
else
|
|
throw new CryptographicException ("Unknown asymmetric algorithm {0}", aa.ToString ());
|
|
|
|
PKCS8.EncryptedPrivateKeyInfo epki = new PKCS8.EncryptedPrivateKeyInfo ();
|
|
epki.Algorithm = pbeWithSHAAnd3KeyTripleDESCBC;
|
|
epki.IterationCount = _iterations;
|
|
epki.EncryptedData = Encrypt (pbeWithSHAAnd3KeyTripleDESCBC, epki.Salt, _iterations, pki.GetBytes ());
|
|
|
|
ASN1 safeBag = new ASN1 (0x30);
|
|
safeBag.Add (ASN1Convert.FromOid (pkcs8ShroudedKeyBag));
|
|
ASN1 bagValue = new ASN1 (0xA0);
|
|
bagValue.Add (new ASN1 (epki.GetBytes ()));
|
|
safeBag.Add (bagValue);
|
|
|
|
if (attributes != null) {
|
|
ASN1 bagAttributes = new ASN1 (0x31);
|
|
IDictionaryEnumerator de = attributes.GetEnumerator ();
|
|
|
|
while (de.MoveNext ()) {
|
|
string oid = (string)de.Key;
|
|
switch (oid) {
|
|
case PKCS9.friendlyName:
|
|
ArrayList names = (ArrayList)de.Value;
|
|
if (names.Count > 0) {
|
|
ASN1 pkcs12Attribute = new ASN1 (0x30);
|
|
pkcs12Attribute.Add (ASN1Convert.FromOid (PKCS9.friendlyName));
|
|
ASN1 attrValues = new ASN1 (0x31);
|
|
foreach (byte[] name in names) {
|
|
ASN1 attrValue = new ASN1 (0x1e);
|
|
attrValue.Value = name;
|
|
attrValues.Add (attrValue);
|
|
}
|
|
pkcs12Attribute.Add (attrValues);
|
|
bagAttributes.Add (pkcs12Attribute);
|
|
}
|
|
break;
|
|
case PKCS9.localKeyId:
|
|
ArrayList keys = (ArrayList)de.Value;
|
|
if (keys.Count > 0) {
|
|
ASN1 pkcs12Attribute = new ASN1 (0x30);
|
|
pkcs12Attribute.Add (ASN1Convert.FromOid (PKCS9.localKeyId));
|
|
ASN1 attrValues = new ASN1 (0x31);
|
|
foreach (byte[] key in keys) {
|
|
ASN1 attrValue = new ASN1 (0x04);
|
|
attrValue.Value = key;
|
|
attrValues.Add (attrValue);
|
|
}
|
|
pkcs12Attribute.Add (attrValues);
|
|
bagAttributes.Add (pkcs12Attribute);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (bagAttributes.Count > 0) {
|
|
safeBag.Add (bagAttributes);
|
|
}
|
|
}
|
|
|
|
return safeBag;
|
|
}
|
|
|
|
private ASN1 KeyBagSafeBag (AsymmetricAlgorithm aa, IDictionary attributes)
|
|
{
|
|
PKCS8.PrivateKeyInfo pki = new PKCS8.PrivateKeyInfo ();
|
|
if (aa is RSA) {
|
|
pki.Algorithm = "1.2.840.113549.1.1.1";
|
|
pki.PrivateKey = PKCS8.PrivateKeyInfo.Encode ((RSA)aa);
|
|
}
|
|
else if (aa is DSA) {
|
|
pki.Algorithm = null;
|
|
pki.PrivateKey = PKCS8.PrivateKeyInfo.Encode ((DSA)aa);
|
|
}
|
|
else
|
|
throw new CryptographicException ("Unknown asymmetric algorithm {0}", aa.ToString ());
|
|
|
|
ASN1 safeBag = new ASN1 (0x30);
|
|
safeBag.Add (ASN1Convert.FromOid (keyBag));
|
|
ASN1 bagValue = new ASN1 (0xA0);
|
|
bagValue.Add (new ASN1 (pki.GetBytes ()));
|
|
safeBag.Add (bagValue);
|
|
|
|
if (attributes != null) {
|
|
ASN1 bagAttributes = new ASN1 (0x31);
|
|
IDictionaryEnumerator de = attributes.GetEnumerator ();
|
|
|
|
while (de.MoveNext ()) {
|
|
string oid = (string)de.Key;
|
|
switch (oid) {
|
|
case PKCS9.friendlyName:
|
|
ArrayList names = (ArrayList)de.Value;
|
|
if (names.Count > 0) {
|
|
ASN1 pkcs12Attribute = new ASN1 (0x30);
|
|
pkcs12Attribute.Add (ASN1Convert.FromOid (PKCS9.friendlyName));
|
|
ASN1 attrValues = new ASN1 (0x31);
|
|
foreach (byte[] name in names) {
|
|
ASN1 attrValue = new ASN1 (0x1e);
|
|
attrValue.Value = name;
|
|
attrValues.Add (attrValue);
|
|
}
|
|
pkcs12Attribute.Add (attrValues);
|
|
bagAttributes.Add (pkcs12Attribute);
|
|
}
|
|
break;
|
|
case PKCS9.localKeyId:
|
|
ArrayList keys = (ArrayList)de.Value;
|
|
if (keys.Count > 0) {
|
|
ASN1 pkcs12Attribute = new ASN1 (0x30);
|
|
pkcs12Attribute.Add (ASN1Convert.FromOid (PKCS9.localKeyId));
|
|
ASN1 attrValues = new ASN1 (0x31);
|
|
foreach (byte[] key in keys) {
|
|
ASN1 attrValue = new ASN1 (0x04);
|
|
attrValue.Value = key;
|
|
attrValues.Add (attrValue);
|
|
}
|
|
pkcs12Attribute.Add (attrValues);
|
|
bagAttributes.Add (pkcs12Attribute);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (bagAttributes.Count > 0) {
|
|
safeBag.Add (bagAttributes);
|
|
}
|
|
}
|
|
|
|
return safeBag;
|
|
}
|
|
|
|
private ASN1 SecretBagSafeBag (byte[] secret, IDictionary attributes)
|
|
{
|
|
ASN1 safeBag = new ASN1 (0x30);
|
|
safeBag.Add (ASN1Convert.FromOid (secretBag));
|
|
ASN1 bagValue = new ASN1 (0x80, secret);
|
|
safeBag.Add (bagValue);
|
|
|
|
if (attributes != null) {
|
|
ASN1 bagAttributes = new ASN1 (0x31);
|
|
IDictionaryEnumerator de = attributes.GetEnumerator ();
|
|
|
|
while (de.MoveNext ()) {
|
|
string oid = (string)de.Key;
|
|
switch (oid) {
|
|
case PKCS9.friendlyName:
|
|
ArrayList names = (ArrayList)de.Value;
|
|
if (names.Count > 0) {
|
|
ASN1 pkcs12Attribute = new ASN1 (0x30);
|
|
pkcs12Attribute.Add (ASN1Convert.FromOid (PKCS9.friendlyName));
|
|
ASN1 attrValues = new ASN1 (0x31);
|
|
foreach (byte[] name in names) {
|
|
ASN1 attrValue = new ASN1 (0x1e);
|
|
attrValue.Value = name;
|
|
attrValues.Add (attrValue);
|
|
}
|
|
pkcs12Attribute.Add (attrValues);
|
|
bagAttributes.Add (pkcs12Attribute);
|
|
}
|
|
break;
|
|
case PKCS9.localKeyId:
|
|
ArrayList keys = (ArrayList)de.Value;
|
|
if (keys.Count > 0) {
|
|
ASN1 pkcs12Attribute = new ASN1 (0x30);
|
|
pkcs12Attribute.Add (ASN1Convert.FromOid (PKCS9.localKeyId));
|
|
ASN1 attrValues = new ASN1 (0x31);
|
|
foreach (byte[] key in keys) {
|
|
ASN1 attrValue = new ASN1 (0x04);
|
|
attrValue.Value = key;
|
|
attrValues.Add (attrValue);
|
|
}
|
|
pkcs12Attribute.Add (attrValues);
|
|
bagAttributes.Add (pkcs12Attribute);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (bagAttributes.Count > 0) {
|
|
safeBag.Add (bagAttributes);
|
|
}
|
|
}
|
|
|
|
return safeBag;
|
|
}
|
|
|
|
private ASN1 CertificateSafeBag (X509Certificate x509, IDictionary attributes)
|
|
{
|
|
ASN1 encapsulatedCertificate = new ASN1 (0x04, x509.RawData);
|
|
|
|
PKCS7.ContentInfo ci = new PKCS7.ContentInfo ();
|
|
ci.ContentType = x509Certificate;
|
|
ci.Content.Add (encapsulatedCertificate);
|
|
|
|
ASN1 bagValue = new ASN1 (0xA0);
|
|
bagValue.Add (ci.ASN1);
|
|
|
|
ASN1 safeBag = new ASN1 (0x30);
|
|
safeBag.Add (ASN1Convert.FromOid (certBag));
|
|
safeBag.Add (bagValue);
|
|
|
|
if (attributes != null) {
|
|
ASN1 bagAttributes = new ASN1 (0x31);
|
|
IDictionaryEnumerator de = attributes.GetEnumerator ();
|
|
|
|
while (de.MoveNext ()) {
|
|
string oid = (string)de.Key;
|
|
switch (oid) {
|
|
case PKCS9.friendlyName:
|
|
ArrayList names = (ArrayList)de.Value;
|
|
if (names.Count > 0) {
|
|
ASN1 pkcs12Attribute = new ASN1 (0x30);
|
|
pkcs12Attribute.Add (ASN1Convert.FromOid (PKCS9.friendlyName));
|
|
ASN1 attrValues = new ASN1 (0x31);
|
|
foreach (byte[] name in names) {
|
|
ASN1 attrValue = new ASN1 (0x1e);
|
|
attrValue.Value = name;
|
|
attrValues.Add (attrValue);
|
|
}
|
|
pkcs12Attribute.Add (attrValues);
|
|
bagAttributes.Add (pkcs12Attribute);
|
|
}
|
|
break;
|
|
case PKCS9.localKeyId:
|
|
ArrayList keys = (ArrayList)de.Value;
|
|
if (keys.Count > 0) {
|
|
ASN1 pkcs12Attribute = new ASN1 (0x30);
|
|
pkcs12Attribute.Add (ASN1Convert.FromOid (PKCS9.localKeyId));
|
|
ASN1 attrValues = new ASN1 (0x31);
|
|
foreach (byte[] key in keys) {
|
|
ASN1 attrValue = new ASN1 (0x04);
|
|
attrValue.Value = key;
|
|
attrValues.Add (attrValue);
|
|
}
|
|
pkcs12Attribute.Add (attrValues);
|
|
bagAttributes.Add (pkcs12Attribute);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (bagAttributes.Count > 0) {
|
|
safeBag.Add (bagAttributes);
|
|
}
|
|
}
|
|
|
|
return safeBag;
|
|
}
|
|
|
|
private byte[] MAC (byte[] password, byte[] salt, int iterations, byte[] data)
|
|
{
|
|
PKCS12.DeriveBytes pd = new PKCS12.DeriveBytes ();
|
|
pd.HashName = "SHA1";
|
|
pd.Password = password;
|
|
pd.Salt = salt;
|
|
pd.IterationCount = iterations;
|
|
|
|
HMACSHA1 hmac = (HMACSHA1) HMACSHA1.Create ();
|
|
hmac.Key = pd.DeriveMAC (20);
|
|
return hmac.ComputeHash (data, 0, data.Length);
|
|
}
|
|
|
|
/*
|
|
* SafeContents ::= SEQUENCE OF SafeBag
|
|
*
|
|
* SafeBag ::= SEQUENCE {
|
|
* bagId BAG-TYPE.&id ({PKCS12BagSet}),
|
|
* bagValue [0] EXPLICIT BAG-TYPE.&Type({PKCS12BagSet}{@bagId}),
|
|
* bagAttributes SET OF PKCS12Attribute OPTIONAL
|
|
* }
|
|
*/
|
|
public byte[] GetBytes ()
|
|
{
|
|
// TODO (incomplete)
|
|
ASN1 safeBagSequence = new ASN1 (0x30);
|
|
|
|
// Sync Safe Bag list since X509CertificateCollection may be updated
|
|
ArrayList scs = new ArrayList ();
|
|
foreach (SafeBag sb in _safeBags) {
|
|
if (sb.BagOID.Equals (certBag)) {
|
|
ASN1 safeBag = sb.ASN1;
|
|
ASN1 bagValue = safeBag [1];
|
|
PKCS7.ContentInfo cert = new PKCS7.ContentInfo (bagValue.Value);
|
|
scs.Add (new X509Certificate (cert.Content [0].Value));
|
|
}
|
|
}
|
|
|
|
ArrayList addcerts = new ArrayList ();
|
|
ArrayList removecerts = new ArrayList ();
|
|
|
|
foreach (X509Certificate c in Certificates) {
|
|
bool found = false;
|
|
|
|
foreach (X509Certificate lc in scs) {
|
|
if (Compare (c.RawData, lc.RawData)) {
|
|
found = true;
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
addcerts.Add (c);
|
|
}
|
|
}
|
|
foreach (X509Certificate c in scs) {
|
|
bool found = false;
|
|
|
|
foreach (X509Certificate lc in Certificates) {
|
|
if (Compare (c.RawData, lc.RawData)) {
|
|
found = true;
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
removecerts.Add (c);
|
|
}
|
|
}
|
|
|
|
foreach (X509Certificate c in removecerts) {
|
|
RemoveCertificate (c);
|
|
}
|
|
|
|
foreach (X509Certificate c in addcerts) {
|
|
AddCertificate (c);
|
|
}
|
|
// Sync done
|
|
|
|
if (_safeBags.Count > 0) {
|
|
ASN1 certsSafeBag = new ASN1 (0x30);
|
|
foreach (SafeBag sb in _safeBags) {
|
|
if (sb.BagOID.Equals (certBag)) {
|
|
certsSafeBag.Add (sb.ASN1);
|
|
}
|
|
}
|
|
|
|
if (certsSafeBag.Count > 0) {
|
|
PKCS7.ContentInfo contentInfo = EncryptedContentInfo (certsSafeBag, pbeWithSHAAnd3KeyTripleDESCBC);
|
|
safeBagSequence.Add (contentInfo.ASN1);
|
|
}
|
|
}
|
|
|
|
if (_safeBags.Count > 0) {
|
|
ASN1 safeContents = new ASN1 (0x30);
|
|
foreach (SafeBag sb in _safeBags) {
|
|
if (sb.BagOID.Equals (keyBag) ||
|
|
sb.BagOID.Equals (pkcs8ShroudedKeyBag)) {
|
|
safeContents.Add (sb.ASN1);
|
|
}
|
|
}
|
|
if (safeContents.Count > 0) {
|
|
ASN1 content = new ASN1 (0xA0);
|
|
content.Add (new ASN1 (0x04, safeContents.GetBytes ()));
|
|
|
|
PKCS7.ContentInfo keyBag = new PKCS7.ContentInfo (PKCS7.Oid.data);
|
|
keyBag.Content = content;
|
|
safeBagSequence.Add (keyBag.ASN1);
|
|
}
|
|
}
|
|
|
|
// Doing SecretBags separately in case we want to change their encryption independently.
|
|
if (_safeBags.Count > 0) {
|
|
ASN1 secretsSafeBag = new ASN1 (0x30);
|
|
foreach (SafeBag sb in _safeBags) {
|
|
if (sb.BagOID.Equals (secretBag)) {
|
|
secretsSafeBag.Add (sb.ASN1);
|
|
}
|
|
}
|
|
|
|
if (secretsSafeBag.Count > 0) {
|
|
PKCS7.ContentInfo contentInfo = EncryptedContentInfo (secretsSafeBag, pbeWithSHAAnd3KeyTripleDESCBC);
|
|
safeBagSequence.Add (contentInfo.ASN1);
|
|
}
|
|
}
|
|
|
|
|
|
ASN1 encapsulates = new ASN1 (0x04, safeBagSequence.GetBytes ());
|
|
ASN1 ci = new ASN1 (0xA0);
|
|
ci.Add (encapsulates);
|
|
PKCS7.ContentInfo authSafe = new PKCS7.ContentInfo (PKCS7.Oid.data);
|
|
authSafe.Content = ci;
|
|
|
|
ASN1 macData = new ASN1 (0x30);
|
|
if (_password != null) {
|
|
// only for password based encryption
|
|
byte[] salt = new byte [20];
|
|
RNG.GetBytes (salt);
|
|
byte[] macValue = MAC (_password, salt, _iterations, authSafe.Content [0].Value);
|
|
ASN1 oidSeq = new ASN1 (0x30);
|
|
oidSeq.Add (ASN1Convert.FromOid ("1.3.14.3.2.26")); // SHA1
|
|
oidSeq.Add (new ASN1 (0x05));
|
|
|
|
ASN1 mac = new ASN1 (0x30);
|
|
mac.Add (oidSeq);
|
|
mac.Add (new ASN1 (0x04, macValue));
|
|
|
|
macData.Add (mac);
|
|
macData.Add (new ASN1 (0x04, salt));
|
|
macData.Add (ASN1Convert.FromInt32 (_iterations));
|
|
}
|
|
|
|
ASN1 version = new ASN1 (0x02, new byte [1] { 0x03 });
|
|
|
|
ASN1 pfx = new ASN1 (0x30);
|
|
pfx.Add (version);
|
|
pfx.Add (authSafe.ASN1);
|
|
if (macData.Count > 0) {
|
|
// only for password based encryption
|
|
pfx.Add (macData);
|
|
}
|
|
|
|
return pfx.GetBytes ();
|
|
}
|
|
|
|
// Creates an encrypted PKCS#7 ContentInfo with safeBags as its SafeContents. Used in GetBytes(), above.
|
|
private PKCS7.ContentInfo EncryptedContentInfo(ASN1 safeBags, string algorithmOid)
|
|
{
|
|
byte[] salt = new byte [8];
|
|
RNG.GetBytes (salt);
|
|
|
|
ASN1 seqParams = new ASN1 (0x30);
|
|
seqParams.Add (new ASN1 (0x04, salt));
|
|
seqParams.Add (ASN1Convert.FromInt32 (_iterations));
|
|
|
|
ASN1 seqPbe = new ASN1 (0x30);
|
|
seqPbe.Add (ASN1Convert.FromOid (algorithmOid));
|
|
seqPbe.Add (seqParams);
|
|
|
|
byte[] encrypted = Encrypt (algorithmOid, salt, _iterations, safeBags.GetBytes ());
|
|
ASN1 encryptedContent = new ASN1 (0x80, encrypted);
|
|
|
|
ASN1 seq = new ASN1 (0x30);
|
|
seq.Add (ASN1Convert.FromOid (PKCS7.Oid.data));
|
|
seq.Add (seqPbe);
|
|
seq.Add (encryptedContent);
|
|
|
|
ASN1 version = new ASN1 (0x02, new byte [1] { 0x00 });
|
|
ASN1 encData = new ASN1 (0x30);
|
|
encData.Add (version);
|
|
encData.Add (seq);
|
|
|
|
ASN1 finalContent = new ASN1 (0xA0);
|
|
finalContent.Add (encData);
|
|
|
|
PKCS7.ContentInfo bag = new PKCS7.ContentInfo (PKCS7.Oid.encryptedData);
|
|
bag.Content = finalContent;
|
|
return bag;
|
|
}
|
|
|
|
public void AddCertificate (X509Certificate cert)
|
|
{
|
|
AddCertificate (cert, null);
|
|
}
|
|
|
|
public void AddCertificate (X509Certificate cert, IDictionary attributes)
|
|
{
|
|
bool found = false;
|
|
|
|
for (int i = 0; !found && i < _safeBags.Count; i++) {
|
|
SafeBag sb = (SafeBag)_safeBags [i];
|
|
|
|
if (sb.BagOID.Equals (certBag)) {
|
|
ASN1 safeBag = sb.ASN1;
|
|
ASN1 bagValue = safeBag [1];
|
|
PKCS7.ContentInfo crt = new PKCS7.ContentInfo (bagValue.Value);
|
|
X509Certificate c = new X509Certificate (crt.Content [0].Value);
|
|
if (Compare (cert.RawData, c.RawData)) {
|
|
found = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
_safeBags.Add (new SafeBag (certBag, CertificateSafeBag (cert, attributes)));
|
|
_certsChanged = true;
|
|
}
|
|
}
|
|
|
|
public void RemoveCertificate (X509Certificate cert)
|
|
{
|
|
RemoveCertificate (cert, null);
|
|
}
|
|
|
|
public void RemoveCertificate (X509Certificate cert, IDictionary attrs)
|
|
{
|
|
int certIndex = -1;
|
|
|
|
for (int i = 0; certIndex == -1 && i < _safeBags.Count; i++) {
|
|
SafeBag sb = (SafeBag)_safeBags [i];
|
|
|
|
if (sb.BagOID.Equals (certBag)) {
|
|
ASN1 safeBag = sb.ASN1;
|
|
ASN1 bagValue = safeBag [1];
|
|
PKCS7.ContentInfo crt = new PKCS7.ContentInfo (bagValue.Value);
|
|
X509Certificate c = new X509Certificate (crt.Content [0].Value);
|
|
if (Compare (cert.RawData, c.RawData)) {
|
|
if (attrs != null) {
|
|
if (safeBag.Count == 3) {
|
|
ASN1 bagAttributes = safeBag [2];
|
|
int bagAttributesFound = 0;
|
|
for (int j = 0; j < bagAttributes.Count; j++) {
|
|
ASN1 pkcs12Attribute = bagAttributes [j];
|
|
ASN1 attrId = pkcs12Attribute [0];
|
|
string ao = ASN1Convert.ToOid (attrId);
|
|
ArrayList dattrValues = (ArrayList)attrs [ao];
|
|
|
|
if (dattrValues != null) {
|
|
ASN1 attrValues = pkcs12Attribute [1];
|
|
|
|
if (dattrValues.Count == attrValues.Count) {
|
|
int attrValuesFound = 0;
|
|
for (int k = 0; k < attrValues.Count; k++) {
|
|
ASN1 attrValue = attrValues [k];
|
|
byte[] value = (byte[])dattrValues [k];
|
|
|
|
if (Compare (value, attrValue.Value)) {
|
|
attrValuesFound += 1;
|
|
}
|
|
}
|
|
if (attrValuesFound == attrValues.Count) {
|
|
bagAttributesFound += 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (bagAttributesFound == bagAttributes.Count) {
|
|
certIndex = i;
|
|
}
|
|
}
|
|
} else {
|
|
certIndex = i;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (certIndex != -1) {
|
|
_safeBags.RemoveAt (certIndex);
|
|
_certsChanged = true;
|
|
}
|
|
}
|
|
|
|
private bool CompareAsymmetricAlgorithm (AsymmetricAlgorithm a1, AsymmetricAlgorithm a2)
|
|
{
|
|
// fast path
|
|
if (a1.KeySize != a2.KeySize)
|
|
return false;
|
|
// compare public keys - if they match we can assume the private match too
|
|
return (a1.ToXmlString (false) == a2.ToXmlString (false));
|
|
}
|
|
|
|
public void AddPkcs8ShroudedKeyBag (AsymmetricAlgorithm aa)
|
|
{
|
|
AddPkcs8ShroudedKeyBag (aa, null);
|
|
}
|
|
|
|
public void AddPkcs8ShroudedKeyBag (AsymmetricAlgorithm aa, IDictionary attributes)
|
|
{
|
|
bool found = false;
|
|
|
|
for (int i = 0; !found && i < _safeBags.Count; i++) {
|
|
SafeBag sb = (SafeBag)_safeBags [i];
|
|
|
|
if (sb.BagOID.Equals (pkcs8ShroudedKeyBag)) {
|
|
ASN1 bagValue = sb.ASN1 [1];
|
|
PKCS8.EncryptedPrivateKeyInfo epki = new PKCS8.EncryptedPrivateKeyInfo (bagValue.Value);
|
|
byte[] decrypted = Decrypt (epki.Algorithm, epki.Salt, epki.IterationCount, epki.EncryptedData);
|
|
PKCS8.PrivateKeyInfo pki = new PKCS8.PrivateKeyInfo (decrypted);
|
|
byte[] privateKey = pki.PrivateKey;
|
|
|
|
AsymmetricAlgorithm saa = null;
|
|
switch (privateKey [0]) {
|
|
case 0x02:
|
|
DSAParameters p = new DSAParameters (); // FIXME
|
|
saa = PKCS8.PrivateKeyInfo.DecodeDSA (privateKey, p);
|
|
break;
|
|
case 0x30:
|
|
saa = PKCS8.PrivateKeyInfo.DecodeRSA (privateKey);
|
|
break;
|
|
default:
|
|
Array.Clear (decrypted, 0, decrypted.Length);
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
throw new CryptographicException ("Unknown private key format");
|
|
}
|
|
|
|
Array.Clear (decrypted, 0, decrypted.Length);
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
|
|
if (CompareAsymmetricAlgorithm (aa , saa)) {
|
|
found = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
_safeBags.Add (new SafeBag (pkcs8ShroudedKeyBag, Pkcs8ShroudedKeyBagSafeBag (aa, attributes)));
|
|
_keyBagsChanged = true;
|
|
}
|
|
}
|
|
|
|
public void RemovePkcs8ShroudedKeyBag (AsymmetricAlgorithm aa)
|
|
{
|
|
int aaIndex = -1;
|
|
|
|
for (int i = 0; aaIndex == -1 && i < _safeBags.Count; i++) {
|
|
SafeBag sb = (SafeBag)_safeBags [i];
|
|
|
|
if (sb.BagOID.Equals (pkcs8ShroudedKeyBag)) {
|
|
ASN1 bagValue = sb.ASN1 [1];
|
|
PKCS8.EncryptedPrivateKeyInfo epki = new PKCS8.EncryptedPrivateKeyInfo (bagValue.Value);
|
|
byte[] decrypted = Decrypt (epki.Algorithm, epki.Salt, epki.IterationCount, epki.EncryptedData);
|
|
PKCS8.PrivateKeyInfo pki = new PKCS8.PrivateKeyInfo (decrypted);
|
|
byte[] privateKey = pki.PrivateKey;
|
|
|
|
AsymmetricAlgorithm saa = null;
|
|
switch (privateKey [0]) {
|
|
case 0x02:
|
|
DSAParameters p = new DSAParameters (); // FIXME
|
|
saa = PKCS8.PrivateKeyInfo.DecodeDSA (privateKey, p);
|
|
break;
|
|
case 0x30:
|
|
saa = PKCS8.PrivateKeyInfo.DecodeRSA (privateKey);
|
|
break;
|
|
default:
|
|
Array.Clear (decrypted, 0, decrypted.Length);
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
throw new CryptographicException ("Unknown private key format");
|
|
}
|
|
|
|
Array.Clear (decrypted, 0, decrypted.Length);
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
|
|
if (CompareAsymmetricAlgorithm (aa, saa)) {
|
|
aaIndex = i;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (aaIndex != -1) {
|
|
_safeBags.RemoveAt (aaIndex);
|
|
_keyBagsChanged = true;
|
|
}
|
|
}
|
|
|
|
public void AddKeyBag (AsymmetricAlgorithm aa)
|
|
{
|
|
AddKeyBag (aa, null);
|
|
}
|
|
|
|
public void AddKeyBag (AsymmetricAlgorithm aa, IDictionary attributes)
|
|
{
|
|
bool found = false;
|
|
|
|
for (int i = 0; !found && i < _safeBags.Count; i++) {
|
|
SafeBag sb = (SafeBag)_safeBags [i];
|
|
|
|
if (sb.BagOID.Equals (keyBag)) {
|
|
ASN1 bagValue = sb.ASN1 [1];
|
|
PKCS8.PrivateKeyInfo pki = new PKCS8.PrivateKeyInfo (bagValue.Value);
|
|
byte[] privateKey = pki.PrivateKey;
|
|
|
|
AsymmetricAlgorithm saa = null;
|
|
switch (privateKey [0]) {
|
|
case 0x02:
|
|
DSAParameters p = new DSAParameters (); // FIXME
|
|
saa = PKCS8.PrivateKeyInfo.DecodeDSA (privateKey, p);
|
|
break;
|
|
case 0x30:
|
|
saa = PKCS8.PrivateKeyInfo.DecodeRSA (privateKey);
|
|
break;
|
|
default:
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
throw new CryptographicException ("Unknown private key format");
|
|
}
|
|
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
|
|
if (CompareAsymmetricAlgorithm (aa, saa)) {
|
|
found = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
_safeBags.Add (new SafeBag (keyBag, KeyBagSafeBag (aa, attributes)));
|
|
_keyBagsChanged = true;
|
|
}
|
|
}
|
|
|
|
public void RemoveKeyBag (AsymmetricAlgorithm aa)
|
|
{
|
|
int aaIndex = -1;
|
|
|
|
for (int i = 0; aaIndex == -1 && i < _safeBags.Count; i++) {
|
|
SafeBag sb = (SafeBag)_safeBags [i];
|
|
|
|
if (sb.BagOID.Equals (keyBag)) {
|
|
ASN1 bagValue = sb.ASN1 [1];
|
|
PKCS8.PrivateKeyInfo pki = new PKCS8.PrivateKeyInfo (bagValue.Value);
|
|
byte[] privateKey = pki.PrivateKey;
|
|
|
|
AsymmetricAlgorithm saa = null;
|
|
switch (privateKey [0]) {
|
|
case 0x02:
|
|
DSAParameters p = new DSAParameters (); // FIXME
|
|
saa = PKCS8.PrivateKeyInfo.DecodeDSA (privateKey, p);
|
|
break;
|
|
case 0x30:
|
|
saa = PKCS8.PrivateKeyInfo.DecodeRSA (privateKey);
|
|
break;
|
|
default:
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
throw new CryptographicException ("Unknown private key format");
|
|
}
|
|
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
|
|
if (CompareAsymmetricAlgorithm (aa, saa)) {
|
|
aaIndex = i;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (aaIndex != -1) {
|
|
_safeBags.RemoveAt (aaIndex);
|
|
_keyBagsChanged = true;
|
|
}
|
|
}
|
|
|
|
public void AddSecretBag (byte[] secret)
|
|
{
|
|
AddSecretBag (secret, null);
|
|
}
|
|
|
|
public void AddSecretBag (byte[] secret, IDictionary attributes)
|
|
{
|
|
bool found = false;
|
|
|
|
for (int i = 0; !found && i < _safeBags.Count; i++) {
|
|
SafeBag sb = (SafeBag)_safeBags [i];
|
|
|
|
if (sb.BagOID.Equals (secretBag)) {
|
|
ASN1 bagValue = sb.ASN1 [1];
|
|
byte[] ssecret = bagValue.Value;
|
|
|
|
if (Compare (secret, ssecret)) {
|
|
found = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
_safeBags.Add (new SafeBag (secretBag, SecretBagSafeBag (secret, attributes)));
|
|
_secretBagsChanged = true;
|
|
}
|
|
}
|
|
|
|
public void RemoveSecretBag (byte[] secret)
|
|
{
|
|
int sIndex = -1;
|
|
|
|
for (int i = 0; sIndex == -1 && i < _safeBags.Count; i++) {
|
|
SafeBag sb = (SafeBag)_safeBags [i];
|
|
|
|
if (sb.BagOID.Equals (secretBag)) {
|
|
ASN1 bagValue = sb.ASN1 [1];
|
|
byte[] ssecret = bagValue.Value;
|
|
|
|
if (Compare (secret, ssecret)) {
|
|
sIndex = i;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (sIndex != -1) {
|
|
_safeBags.RemoveAt (sIndex);
|
|
_secretBagsChanged = true;
|
|
}
|
|
}
|
|
|
|
public AsymmetricAlgorithm GetAsymmetricAlgorithm (IDictionary attrs)
|
|
{
|
|
foreach (SafeBag sb in _safeBags) {
|
|
if (sb.BagOID.Equals (keyBag) || sb.BagOID.Equals (pkcs8ShroudedKeyBag)) {
|
|
ASN1 safeBag = sb.ASN1;
|
|
|
|
if (safeBag.Count == 3) {
|
|
ASN1 bagAttributes = safeBag [2];
|
|
|
|
int bagAttributesFound = 0;
|
|
for (int i = 0; i < bagAttributes.Count; i++) {
|
|
ASN1 pkcs12Attribute = bagAttributes [i];
|
|
ASN1 attrId = pkcs12Attribute [0];
|
|
string ao = ASN1Convert.ToOid (attrId);
|
|
ArrayList dattrValues = (ArrayList)attrs [ao];
|
|
|
|
if (dattrValues != null) {
|
|
ASN1 attrValues = pkcs12Attribute [1];
|
|
|
|
if (dattrValues.Count == attrValues.Count) {
|
|
int attrValuesFound = 0;
|
|
for (int j = 0; j < attrValues.Count; j++) {
|
|
ASN1 attrValue = attrValues [j];
|
|
byte[] value = (byte[])dattrValues [j];
|
|
|
|
if (Compare (value, attrValue.Value)) {
|
|
attrValuesFound += 1;
|
|
}
|
|
}
|
|
if (attrValuesFound == attrValues.Count) {
|
|
bagAttributesFound += 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (bagAttributesFound == bagAttributes.Count) {
|
|
ASN1 bagValue = safeBag [1];
|
|
AsymmetricAlgorithm aa = null;
|
|
if (sb.BagOID.Equals (keyBag)) {
|
|
PKCS8.PrivateKeyInfo pki = new PKCS8.PrivateKeyInfo (bagValue.Value);
|
|
byte[] privateKey = pki.PrivateKey;
|
|
switch (privateKey [0]) {
|
|
case 0x02:
|
|
DSAParameters p = new DSAParameters (); // FIXME
|
|
aa = PKCS8.PrivateKeyInfo.DecodeDSA (privateKey, p);
|
|
break;
|
|
case 0x30:
|
|
aa = PKCS8.PrivateKeyInfo.DecodeRSA (privateKey);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
} else if (sb.BagOID.Equals (pkcs8ShroudedKeyBag)) {
|
|
PKCS8.EncryptedPrivateKeyInfo epki = new PKCS8.EncryptedPrivateKeyInfo (bagValue.Value);
|
|
byte[] decrypted = Decrypt (epki.Algorithm, epki.Salt, epki.IterationCount, epki.EncryptedData);
|
|
PKCS8.PrivateKeyInfo pki = new PKCS8.PrivateKeyInfo (decrypted);
|
|
byte[] privateKey = pki.PrivateKey;
|
|
switch (privateKey [0]) {
|
|
case 0x02:
|
|
DSAParameters p = new DSAParameters (); // FIXME
|
|
aa = PKCS8.PrivateKeyInfo.DecodeDSA (privateKey, p);
|
|
break;
|
|
case 0x30:
|
|
aa = PKCS8.PrivateKeyInfo.DecodeRSA (privateKey);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
Array.Clear (decrypted, 0, decrypted.Length);
|
|
}
|
|
return aa;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
public byte[] GetSecret (IDictionary attrs)
|
|
{
|
|
foreach (SafeBag sb in _safeBags) {
|
|
if (sb.BagOID.Equals (secretBag)) {
|
|
ASN1 safeBag = sb.ASN1;
|
|
|
|
if (safeBag.Count == 3) {
|
|
ASN1 bagAttributes = safeBag [2];
|
|
|
|
int bagAttributesFound = 0;
|
|
for (int i = 0; i < bagAttributes.Count; i++) {
|
|
ASN1 pkcs12Attribute = bagAttributes [i];
|
|
ASN1 attrId = pkcs12Attribute [0];
|
|
string ao = ASN1Convert.ToOid (attrId);
|
|
ArrayList dattrValues = (ArrayList)attrs [ao];
|
|
|
|
if (dattrValues != null) {
|
|
ASN1 attrValues = pkcs12Attribute [1];
|
|
|
|
if (dattrValues.Count == attrValues.Count) {
|
|
int attrValuesFound = 0;
|
|
for (int j = 0; j < attrValues.Count; j++) {
|
|
ASN1 attrValue = attrValues [j];
|
|
byte[] value = (byte[])dattrValues [j];
|
|
|
|
if (Compare (value, attrValue.Value)) {
|
|
attrValuesFound += 1;
|
|
}
|
|
}
|
|
if (attrValuesFound == attrValues.Count) {
|
|
bagAttributesFound += 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (bagAttributesFound == bagAttributes.Count) {
|
|
ASN1 bagValue = safeBag [1];
|
|
return bagValue.Value;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
public X509Certificate GetCertificate (IDictionary attrs)
|
|
{
|
|
foreach (SafeBag sb in _safeBags) {
|
|
if (sb.BagOID.Equals (certBag)) {
|
|
ASN1 safeBag = sb.ASN1;
|
|
|
|
if (safeBag.Count == 3) {
|
|
ASN1 bagAttributes = safeBag [2];
|
|
|
|
int bagAttributesFound = 0;
|
|
for (int i = 0; i < bagAttributes.Count; i++) {
|
|
ASN1 pkcs12Attribute = bagAttributes [i];
|
|
ASN1 attrId = pkcs12Attribute [0];
|
|
string ao = ASN1Convert.ToOid (attrId);
|
|
ArrayList dattrValues = (ArrayList)attrs [ao];
|
|
|
|
if (dattrValues != null) {
|
|
ASN1 attrValues = pkcs12Attribute [1];
|
|
|
|
if (dattrValues.Count == attrValues.Count) {
|
|
int attrValuesFound = 0;
|
|
for (int j = 0; j < attrValues.Count; j++) {
|
|
ASN1 attrValue = attrValues [j];
|
|
byte[] value = (byte[])dattrValues [j];
|
|
|
|
if (Compare (value, attrValue.Value)) {
|
|
attrValuesFound += 1;
|
|
}
|
|
}
|
|
if (attrValuesFound == attrValues.Count) {
|
|
bagAttributesFound += 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (bagAttributesFound == bagAttributes.Count) {
|
|
ASN1 bagValue = safeBag [1];
|
|
PKCS7.ContentInfo crt = new PKCS7.ContentInfo (bagValue.Value);
|
|
return new X509Certificate (crt.Content [0].Value);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
public IDictionary GetAttributes (AsymmetricAlgorithm aa)
|
|
{
|
|
IDictionary result = new Hashtable ();
|
|
|
|
foreach (SafeBag sb in _safeBags) {
|
|
if (sb.BagOID.Equals (keyBag) || sb.BagOID.Equals (pkcs8ShroudedKeyBag)) {
|
|
ASN1 safeBag = sb.ASN1;
|
|
|
|
ASN1 bagValue = safeBag [1];
|
|
AsymmetricAlgorithm saa = null;
|
|
if (sb.BagOID.Equals (keyBag)) {
|
|
PKCS8.PrivateKeyInfo pki = new PKCS8.PrivateKeyInfo (bagValue.Value);
|
|
byte[] privateKey = pki.PrivateKey;
|
|
switch (privateKey [0]) {
|
|
case 0x02:
|
|
DSAParameters p = new DSAParameters (); // FIXME
|
|
saa = PKCS8.PrivateKeyInfo.DecodeDSA (privateKey, p);
|
|
break;
|
|
case 0x30:
|
|
saa = PKCS8.PrivateKeyInfo.DecodeRSA (privateKey);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
} else if (sb.BagOID.Equals (pkcs8ShroudedKeyBag)) {
|
|
PKCS8.EncryptedPrivateKeyInfo epki = new PKCS8.EncryptedPrivateKeyInfo (bagValue.Value);
|
|
byte[] decrypted = Decrypt (epki.Algorithm, epki.Salt, epki.IterationCount, epki.EncryptedData);
|
|
PKCS8.PrivateKeyInfo pki = new PKCS8.PrivateKeyInfo (decrypted);
|
|
byte[] privateKey = pki.PrivateKey;
|
|
switch (privateKey [0]) {
|
|
case 0x02:
|
|
DSAParameters p = new DSAParameters (); // FIXME
|
|
saa = PKCS8.PrivateKeyInfo.DecodeDSA (privateKey, p);
|
|
break;
|
|
case 0x30:
|
|
saa = PKCS8.PrivateKeyInfo.DecodeRSA (privateKey);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
Array.Clear (privateKey, 0, privateKey.Length);
|
|
Array.Clear (decrypted, 0, decrypted.Length);
|
|
}
|
|
|
|
if (saa != null && CompareAsymmetricAlgorithm (saa, aa)) {
|
|
if (safeBag.Count == 3) {
|
|
ASN1 bagAttributes = safeBag [2];
|
|
|
|
for (int i = 0; i < bagAttributes.Count; i++) {
|
|
ASN1 pkcs12Attribute = bagAttributes [i];
|
|
ASN1 attrId = pkcs12Attribute [0];
|
|
string aOid = ASN1Convert.ToOid (attrId);
|
|
ArrayList aValues = new ArrayList ();
|
|
|
|
ASN1 attrValues = pkcs12Attribute [1];
|
|
|
|
for (int j = 0; j < attrValues.Count; j++) {
|
|
ASN1 attrValue = attrValues [j];
|
|
aValues.Add (attrValue.Value);
|
|
}
|
|
result.Add (aOid, aValues);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public IDictionary GetAttributes (X509Certificate cert)
|
|
{
|
|
IDictionary result = new Hashtable ();
|
|
|
|
foreach (SafeBag sb in _safeBags) {
|
|
if (sb.BagOID.Equals (certBag)) {
|
|
ASN1 safeBag = sb.ASN1;
|
|
ASN1 bagValue = safeBag [1];
|
|
PKCS7.ContentInfo crt = new PKCS7.ContentInfo (bagValue.Value);
|
|
X509Certificate xc = new X509Certificate (crt.Content [0].Value);
|
|
|
|
if (Compare (cert.RawData, xc.RawData)) {
|
|
if (safeBag.Count == 3) {
|
|
ASN1 bagAttributes = safeBag [2];
|
|
|
|
for (int i = 0; i < bagAttributes.Count; i++) {
|
|
ASN1 pkcs12Attribute = bagAttributes [i];
|
|
ASN1 attrId = pkcs12Attribute [0];
|
|
|
|
string aOid = ASN1Convert.ToOid (attrId);
|
|
ArrayList aValues = new ArrayList ();
|
|
|
|
ASN1 attrValues = pkcs12Attribute [1];
|
|
|
|
for (int j = 0; j < attrValues.Count; j++) {
|
|
ASN1 attrValue = attrValues [j];
|
|
aValues.Add (attrValue.Value);
|
|
}
|
|
result.Add (aOid, aValues);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
public void SaveToFile (string filename)
|
|
{
|
|
if (filename == null)
|
|
throw new ArgumentNullException ("filename");
|
|
|
|
using (FileStream fs = File.Create (filename)) {
|
|
byte[] data = GetBytes ();
|
|
fs.Write (data, 0, data.Length);
|
|
}
|
|
}
|
|
|
|
public object Clone ()
|
|
{
|
|
PKCS12 clone = null;
|
|
if (_password != null) {
|
|
clone = new PKCS12 (GetBytes (), Encoding.BigEndianUnicode.GetString (_password));
|
|
} else {
|
|
clone = new PKCS12 (GetBytes ());
|
|
}
|
|
clone.IterationCount = this.IterationCount;
|
|
|
|
return clone;
|
|
}
|
|
|
|
// static
|
|
|
|
public const int CryptoApiPasswordLimit = 32;
|
|
|
|
static private int password_max_length = Int32.MaxValue;
|
|
|
|
// static properties
|
|
|
|
// MS CryptoAPI limits the password to a maximum of 31 characters
|
|
// other implementations, like OpenSSL, have no such limitation.
|
|
// Setting a maximum value will truncate the password length to
|
|
// ensure compatibility with MS's PFXImportCertStore API.
|
|
static public int MaximumPasswordLength {
|
|
get { return password_max_length; }
|
|
set {
|
|
if (value < CryptoApiPasswordLimit) {
|
|
string msg = string.Format ("Maximum password length cannot be less than {0}.", CryptoApiPasswordLimit);
|
|
throw new ArgumentOutOfRangeException (msg);
|
|
}
|
|
password_max_length = value;
|
|
}
|
|
}
|
|
}
|
|
}
|