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author | Peter Dettman <peter.dettman@bouncycastle.org> | 2013-06-28 15:26:06 +0700 |
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committer | Peter Dettman <peter.dettman@bouncycastle.org> | 2013-06-28 15:26:06 +0700 |
commit | 44288db4414158ac9b98a507b15e81d0d3c66ca6 (patch) | |
tree | aa5ef88948ebb68ed6c8df81eb5da889641a9b50 /crypto/src/asn1/misc/IDEACBCPar.cs | |
parent | Set up text/binary handling for existing file types (diff) | |
download | BouncyCastle.NET-ed25519-44288db4414158ac9b98a507b15e81d0d3c66ca6.tar.xz |
Initial import of old CVS repository
Diffstat (limited to 'crypto/src/asn1/misc/IDEACBCPar.cs')
-rw-r--r-- | crypto/src/asn1/misc/IDEACBCPar.cs | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/crypto/src/asn1/misc/IDEACBCPar.cs b/crypto/src/asn1/misc/IDEACBCPar.cs new file mode 100644 index 000000000..72a60b9dc --- /dev/null +++ b/crypto/src/asn1/misc/IDEACBCPar.cs @@ -0,0 +1,68 @@ +using System; + +using Org.BouncyCastle.Asn1; + +namespace Org.BouncyCastle.Asn1.Misc +{ + public class IdeaCbcPar + : Asn1Encodable + { + internal Asn1OctetString iv; + + public static IdeaCbcPar GetInstance( + object o) + { + if (o is IdeaCbcPar) + { + return (IdeaCbcPar) o; + } + + if (o is Asn1Sequence) + { + return new IdeaCbcPar((Asn1Sequence) o); + } + + throw new ArgumentException("unknown object in IDEACBCPar factory"); + } + + public IdeaCbcPar( + byte[] iv) + { + this.iv = new DerOctetString(iv); + } + + private IdeaCbcPar( + Asn1Sequence seq) + { + if (seq.Count == 1) + { + iv = (Asn1OctetString) seq[0]; + } + } + + public byte[] GetIV() + { + return iv == null ? null : iv.GetOctets(); + } + + /** + * Produce an object suitable for an Asn1OutputStream. + * <pre> + * IDEA-CBCPar ::= Sequence { + * iv OCTET STRING OPTIONAL -- exactly 8 octets + * } + * </pre> + */ + public override Asn1Object ToAsn1Object() + { + Asn1EncodableVector v = new Asn1EncodableVector(); + + if (iv != null) + { + v.Add(iv); + } + + return new DerSequence(v); + } + } +} |