1 files changed, 64 insertions, 0 deletions
diff --git a/Crypto/src/cms/PKCS5Scheme2PBEKey.cs b/Crypto/src/cms/PKCS5Scheme2PBEKey.cs
new file mode 100644
index 000000000..08b8518a1
--- /dev/null
+++ b/Crypto/src/cms/PKCS5Scheme2PBEKey.cs
@@ -0,0 +1,64 @@
+using System;
+
+using Org.BouncyCastle.Asn1.Pkcs;
+using Org.BouncyCastle.Asn1.X509;
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Crypto.Generators;
+using Org.BouncyCastle.Crypto.Parameters;
+
+namespace Org.BouncyCastle.Cms
+{
+ /// <summary>
+ /// PKCS5 scheme-2 - password converted to bytes assuming ASCII.
+ /// </summary>
+ public class Pkcs5Scheme2PbeKey
+ : CmsPbeKey
+ {
+ [Obsolete("Use version taking 'char[]' instead")]
+ public Pkcs5Scheme2PbeKey(
+ string password,
+ byte[] salt,
+ int iterationCount)
+ : this(password.ToCharArray(), salt, iterationCount)
+ {
+ }
+
+ [Obsolete("Use version taking 'char[]' instead")]
+ public Pkcs5Scheme2PbeKey(
+ string password,
+ AlgorithmIdentifier keyDerivationAlgorithm)
+ : this(password.ToCharArray(), keyDerivationAlgorithm)
+ {
+ }
+
+ public Pkcs5Scheme2PbeKey(
+ char[] password,
+ byte[] salt,
+ int iterationCount)
+ : base(password, salt, iterationCount)
+ {
+ }
+
+ public Pkcs5Scheme2PbeKey(
+ char[] password,
+ AlgorithmIdentifier keyDerivationAlgorithm)
+ : base(password, keyDerivationAlgorithm)
+ {
+ }
+
+ internal override KeyParameter GetEncoded(
+ string algorithmOid)
+ {
+ Pkcs5S2ParametersGenerator gen = new Pkcs5S2ParametersGenerator();
+
+ gen.Init(
+ PbeParametersGenerator.Pkcs5PasswordToBytes(password),
+ salt,
+ iterationCount);
+
+ return (KeyParameter) gen.GenerateDerivedParameters(
+ algorithmOid,
+ CmsEnvelopedHelper.Instance.GetKeySize(algorithmOid));
+ }
+ }
+}
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