diff options
| -rw-r--r-- | crypto/test/src/crypto/test/SipHashTest.cs | 54 |
1 files changed, 50 insertions, 4 deletions
diff --git a/crypto/test/src/crypto/test/SipHashTest.cs b/crypto/test/src/crypto/test/SipHashTest.cs index 81b6f64ae..886ffc4d6 100644 --- a/crypto/test/src/crypto/test/SipHashTest.cs +++ b/crypto/test/src/crypto/test/SipHashTest.cs @@ -20,6 +20,10 @@ namespace Org.BouncyCastle.Crypto.Tests public class SipHashTest : SimpleTest { + private const int UPDATE_BYTES = 0; + private const int UPDATE_FULL = 1; + private const int UPDATE_MIX = 2; + public override string Name { get { return "SipHash"; } @@ -30,11 +34,19 @@ namespace Org.BouncyCastle.Crypto.Tests byte[] key = Hex.Decode("000102030405060708090a0b0c0d0e0f"); byte[] input = Hex.Decode("000102030405060708090a0b0c0d0e"); + RunMac(key, input, UPDATE_BYTES); + RunMac(key, input, UPDATE_FULL); + RunMac(key, input, UPDATE_MIX); + } + + private void RunMac(byte[] key, byte[] input, int updateType) + { long expected = unchecked((long)0xa129ca6149be45e5); SipHash mac = new SipHash(); mac.Init(new KeyParameter(key)); - mac.BlockUpdate(input, 0, input.Length); + + UpdateMac(mac, input, updateType); long result = mac.DoFinal(); if (expected != result) @@ -45,7 +57,7 @@ namespace Org.BouncyCastle.Crypto.Tests // NOTE: Little-endian representation of 0xa129ca6149be45e5 byte[] expectedBytes = Hex.Decode("e545be4961ca29a1"); - mac.BlockUpdate(input, 0, input.Length); + UpdateMac(mac, input, updateType); byte[] output = new byte[mac.GetMacSize()]; int len = mac.DoFinal(output, 0); @@ -59,8 +71,42 @@ namespace Org.BouncyCastle.Crypto.Tests } } - public static void Main( - string[] args) + private void UpdateMac(SipHash mac, byte[] input, int updateType) + { + switch (updateType) + { + case UPDATE_BYTES: + { + for (int i = 0; i < input.Length; ++i) + { + mac.Update(input[i]); + } + break; + } + case UPDATE_FULL: + { + mac.BlockUpdate(input, 0, input.Length); + break; + } + case UPDATE_MIX: + { + int step = System.Math.Max(1, input.Length / 3); + int pos = 0; + while (pos < input.Length) + { + mac.Update(input[pos++]); + int len = System.Math.Min(input.Length - pos, step); + mac.BlockUpdate(input, pos, len); + pos += len; + } + break; + } + default: + throw new InvalidOperationException(); + } + } + + public static void Main(string[] args) { RunTest(new SipHashTest()); } |