1 files changed, 48 insertions, 0 deletions
diff --git a/crypto/src/tsp/TSPAlgorithms.cs b/crypto/src/tsp/TSPAlgorithms.cs
new file mode 100644
index 000000000..e3dfc7916
--- /dev/null
+++ b/crypto/src/tsp/TSPAlgorithms.cs
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+using System.Collections;
+
+using Org.BouncyCastle.Asn1.CryptoPro;
+using Org.BouncyCastle.Asn1.Nist;
+using Org.BouncyCastle.Asn1.Oiw;
+using Org.BouncyCastle.Asn1.Pkcs;
+using Org.BouncyCastle.Asn1.TeleTrust;
+using Org.BouncyCastle.Utilities;
+
+namespace Org.BouncyCastle.Tsp
+{
+	/**
+	 * Recognised hash algorithms for the time stamp protocol.
+	 */
+	public abstract class TspAlgorithms
+	{
+		public static readonly string MD5 = PkcsObjectIdentifiers.MD5.Id;
+
+		public static readonly string Sha1 = OiwObjectIdentifiers.IdSha1.Id;
+
+		public static readonly string Sha224 = NistObjectIdentifiers.IdSha224.Id;
+		public static readonly string Sha256 = NistObjectIdentifiers.IdSha256.Id;
+		public static readonly string Sha384 = NistObjectIdentifiers.IdSha384.Id;
+		public static readonly string Sha512 = NistObjectIdentifiers.IdSha512.Id;
+
+		public static readonly string RipeMD128 = TeleTrusTObjectIdentifiers.RipeMD128.Id;
+		public static readonly string RipeMD160 = TeleTrusTObjectIdentifiers.RipeMD160.Id;
+		public static readonly string RipeMD256 = TeleTrusTObjectIdentifiers.RipeMD256.Id;
+
+		public static readonly string Gost3411 = CryptoProObjectIdentifiers.GostR3411.Id;
+
+		public static readonly IList Allowed;
+
+		static TspAlgorithms()
+		{
+			string[] algs = new string[]
+			{
+				Gost3411, MD5, Sha1, Sha224, Sha256, Sha384, Sha512, RipeMD128, RipeMD160, RipeMD256
+			};
+
+			Allowed = Platform.CreateArrayList();
+			foreach (string alg in algs)
+			{
+				Allowed.Add(alg);
+			}
+		}
+	}
+}