1 files changed, 74 insertions, 0 deletions
diff --git a/Crypto/src/asn1/misc/CAST5CBCParameters.cs b/Crypto/src/asn1/misc/CAST5CBCParameters.cs
new file mode 100644
index 000000000..51fd6607a
--- /dev/null
+++ b/Crypto/src/asn1/misc/CAST5CBCParameters.cs
@@ -0,0 +1,74 @@
+using System;
+
+using Org.BouncyCastle.Asn1;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Asn1.Misc
+{
+ public class Cast5CbcParameters
+ : Asn1Encodable
+ {
+ private readonly DerInteger keyLength;
+ private readonly Asn1OctetString iv;
+
+ public static Cast5CbcParameters GetInstance(
+ object o)
+ {
+ if (o is Cast5CbcParameters)
+ {
+ return (Cast5CbcParameters) o;
+ }
+
+ if (o is Asn1Sequence)
+ {
+ return new Cast5CbcParameters((Asn1Sequence) o);
+ }
+
+ throw new ArgumentException("unknown object in Cast5CbcParameters factory");
+ }
+
+ public Cast5CbcParameters(
+ byte[] iv,
+ int keyLength)
+ {
+ this.iv = new DerOctetString(iv);
+ this.keyLength = new DerInteger(keyLength);
+ }
+
+ private Cast5CbcParameters(
+ Asn1Sequence seq)
+ {
+ if (seq.Count != 2)
+ throw new ArgumentException("Wrong number of elements in sequence", "seq");
+
+ iv = (Asn1OctetString) seq[0];
+ keyLength = (DerInteger) seq[1];
+ }
+
+ public byte[] GetIV()
+ {
+ return Arrays.Clone(iv.GetOctets());
+ }
+
+ public int KeyLength
+ {
+ get { return keyLength.Value.IntValue; }
+ }
+
+ /**
+ * Produce an object suitable for an Asn1OutputStream.
+ * <pre>
+ * cast5CBCParameters ::= Sequence {
+ * iv OCTET STRING DEFAULT 0,
+ * -- Initialization vector
+ * keyLength Integer
+ * -- Key length, in bits
+ * }
+ * </pre>
+ */
+ public override Asn1Object ToAsn1Object()
+ {
+ return new DerSequence(iv, keyLength);
+ }
+ }
+}
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