1 files changed, 63 insertions, 0 deletions
diff --git a/Crypto/src/asn1/cryptopro/GOST28147Parameters.cs b/Crypto/src/asn1/cryptopro/GOST28147Parameters.cs
new file mode 100644
index 000000000..eb7e0e3f6
--- /dev/null
+++ b/Crypto/src/asn1/cryptopro/GOST28147Parameters.cs
@@ -0,0 +1,63 @@
+using System;
+using System.Collections;
+
+using Org.BouncyCastle.Asn1;
+
+namespace Org.BouncyCastle.Asn1.CryptoPro
+{
+ public class Gost28147Parameters
+ : Asn1Encodable
+ {
+ private readonly Asn1OctetString iv;
+ private readonly DerObjectIdentifier paramSet;
+
+ public static Gost28147Parameters GetInstance(
+ Asn1TaggedObject obj,
+ bool explicitly)
+ {
+ return GetInstance(Asn1Sequence.GetInstance(obj, explicitly));
+ }
+
+ public static Gost28147Parameters GetInstance(
+ object obj)
+ {
+ if (obj == null || obj is Gost28147Parameters)
+ {
+ return (Gost28147Parameters) obj;
+ }
+
+ if (obj is Asn1Sequence)
+ {
+ return new Gost28147Parameters((Asn1Sequence) obj);
+ }
+
+ throw new ArgumentException("Invalid GOST3410Parameter: " + obj.GetType().Name);
+ }
+
+ private Gost28147Parameters(
+ Asn1Sequence seq)
+ {
+ if (seq.Count != 2)
+ throw new ArgumentException("Wrong number of elements in sequence", "seq");
+
+ this.iv = Asn1OctetString.GetInstance(seq[0]);
+ this.paramSet = DerObjectIdentifier.GetInstance(seq[1]);
+ }
+
+ /**
+ * <pre>
+ * Gost28147-89-Parameters ::=
+ * SEQUENCE {
+ * iv Gost28147-89-IV,
+ * encryptionParamSet OBJECT IDENTIFIER
+ * }
+ *
+ * Gost28147-89-IV ::= OCTET STRING (SIZE (8))
+ * </pre>
+ */
+ public override Asn1Object ToAsn1Object()
+ {
+ return new DerSequence(iv, paramSet);
+ }
+ }
+}
|
