1 files changed, 109 insertions, 0 deletions
diff --git a/Crypto/src/cms/CMSPBEKey.cs b/Crypto/src/cms/CMSPBEKey.cs
new file mode 100644
index 000000000..cb1e54c36
--- /dev/null
+++ b/Crypto/src/cms/CMSPBEKey.cs
@@ -0,0 +1,109 @@
+using System;
+
+using Org.BouncyCastle.Asn1.Pkcs;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Crypto.Parameters;
+using Org.BouncyCastle.Utilities;
+
+//import javax.crypto.interfaces.PBEKey;
+
+namespace Org.BouncyCastle.Cms
+{
+ public abstract class CmsPbeKey
+ // TODO Create an equivalent interface somewhere?
+ // : PBEKey
+ : ICipherParameters
+ {
+ internal readonly char[] password;
+ internal readonly byte[] salt;
+ internal readonly int iterationCount;
+
+ [Obsolete("Use version taking 'char[]' instead")]
+ public CmsPbeKey(
+ string password,
+ byte[] salt,
+ int iterationCount)
+ : this(password.ToCharArray(), salt, iterationCount)
+ {
+ }
+
+ [Obsolete("Use version taking 'char[]' instead")]
+ public CmsPbeKey(
+ string password,
+ AlgorithmIdentifier keyDerivationAlgorithm)
+ : this(password.ToCharArray(), keyDerivationAlgorithm)
+ {
+ }
+
+ public CmsPbeKey(
+ char[] password,
+ byte[] salt,
+ int iterationCount)
+ {
+ this.password = (char[])password.Clone();
+ this.salt = Arrays.Clone(salt);
+ this.iterationCount = iterationCount;
+ }
+
+ public CmsPbeKey(
+ char[] password,
+ AlgorithmIdentifier keyDerivationAlgorithm)
+ {
+ if (!keyDerivationAlgorithm.ObjectID.Equals(PkcsObjectIdentifiers.IdPbkdf2))
+ throw new ArgumentException("Unsupported key derivation algorithm: "
+ + keyDerivationAlgorithm.ObjectID);
+
+ Pbkdf2Params kdfParams = Pbkdf2Params.GetInstance(
+ keyDerivationAlgorithm.Parameters.ToAsn1Object());
+
+ this.password = (char[])password.Clone();
+ this.salt = kdfParams.GetSalt();
+ this.iterationCount = kdfParams.IterationCount.IntValue;
+ }
+
+ ~CmsPbeKey()
+ {
+ Array.Clear(this.password, 0, this.password.Length);
+ }
+
+ [Obsolete("Will be removed")]
+ public string Password
+ {
+ get { return new string(password); }
+ }
+
+ public byte[] Salt
+ {
+ get { return Arrays.Clone(salt); }
+ }
+
+ [Obsolete("Use 'Salt' property instead")]
+ public byte[] GetSalt()
+ {
+ return Salt;
+ }
+
+ public int IterationCount
+ {
+ get { return iterationCount; }
+ }
+
+ public string Algorithm
+ {
+ get { return "PKCS5S2"; }
+ }
+
+ public string Format
+ {
+ get { return "RAW"; }
+ }
+
+ public byte[] GetEncoded()
+ {
+ return null;
+ }
+
+ internal abstract KeyParameter GetEncoded(string algorithmOid);
+ }
+}
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