diff options
Diffstat (limited to 'crypto/src/asn1/pkcs/PBEParameter.cs')
-rw-r--r-- | crypto/src/asn1/pkcs/PBEParameter.cs | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/crypto/src/asn1/pkcs/PBEParameter.cs b/crypto/src/asn1/pkcs/PBEParameter.cs new file mode 100644 index 000000000..80d5ec3e1 --- /dev/null +++ b/crypto/src/asn1/pkcs/PBEParameter.cs @@ -0,0 +1,60 @@ +using System; +using System.Collections; + +using Org.BouncyCastle.Asn1; +using Org.BouncyCastle.Math; + +namespace Org.BouncyCastle.Asn1.Pkcs +{ + public class PbeParameter + : Asn1Encodable + { + private readonly Asn1OctetString salt; + private readonly DerInteger iterationCount; + + public static PbeParameter GetInstance(object obj) + { + if (obj is PbeParameter || obj == null) + { + return (PbeParameter) obj; + } + + if (obj is Asn1Sequence) + { + return new PbeParameter((Asn1Sequence) obj); + } + + throw new ArgumentException("Unknown object in factory: " + obj.GetType().FullName, "obj"); + } + + private PbeParameter(Asn1Sequence seq) + { + if (seq.Count != 2) + throw new ArgumentException("Wrong number of elements in sequence", "seq"); + + salt = Asn1OctetString.GetInstance(seq[0]); + iterationCount = DerInteger.GetInstance(seq[1]); + } + + public PbeParameter(byte[] salt, int iterationCount) + { + this.salt = new DerOctetString(salt); + this.iterationCount = new DerInteger(iterationCount); + } + + public byte[] GetSalt() + { + return salt.GetOctets(); + } + + public BigInteger IterationCount + { + get { return iterationCount.Value; } + } + + public override Asn1Object ToAsn1Object() + { + return new DerSequence(salt, iterationCount); + } + } +} |