public void ComputeHash_ReuseTest()
{
// From https://en.wikipedia.org/wiki/RIPEMD#RIPEMD-160_hashes
byte[] msg1 = Encoding.UTF8.GetBytes("The quick brown fox jumps over the lazy dog");
byte[] msg2 = Encoding.UTF8.GetBytes("The quick brown fox jumps over the lazy cog");
byte[] exp1 = Helper.HexToBytes("37f332f68db77bd9d7edd4969571ad671cf9dd3b");
byte[] exp2 = Helper.HexToBytes("132072df690933835eb8b6ad0b77e7b6f14acad7");
using Ripemd160 rip = new Ripemd160();
byte[] act1 = rip.ComputeHash(msg1);
byte[] act2 = rip.ComputeHash(msg2);
Assert.Equal(exp1, act1);
Assert.Equal(exp2, act2);
}
public void ComputeHash_AMillionATest()
{
using Ripemd160 rip = new Ripemd160();
byte[] actualHash = rip.ComputeHash(HashTestCaseHelper.GetAMillionA());
byte[] expectedHash = Helper.HexToBytes("52783243c1697bdbe16d37f97f68f08325dc1528");
Assert.Equal(expectedHash, actualHash);
}
public void ComputeHash_DoubleTest()
{
using Ripemd160 rip = new Ripemd160(true);
byte[] data = Helper.HexToBytes("fb8049137747e712628240cf6d7056ea2870170cb7d9bc713d91e901b514c6ae7d7dda3cd03ea1b99cf85046a505f3590541123d3f8f2c22c4d7d6e65de65c4ebb9251f09619");
byte[] actualHash = rip.ComputeHash(data);
byte[] expectedHash = Helper.HexToBytes("dd0ea2c8b8f2fba4e1a1b58080fb59b0350c7aba");
Assert.Equal(expectedHash, actualHash);
}
public void ComputeHash_WithIndexTest()
{
using Ripemd160 rip = new Ripemd160();
byte[] data = Helper.HexToBytes("123fab54686520717569636b2062726f776e20666f78206a756d7073206f76657220746865206c617a7920646f67f3a25c92");
byte[] actualHash = rip.ComputeHash(data, 3, 43);
byte[] expectedHash = Helper.HexToBytes("37f332f68db77bd9d7edd4969571ad671cf9dd3b");
Assert.Equal(expectedHash, actualHash);
}
/// <summary>
/// Replaces top stack item with its hash digest. Return value indicates success.
/// </summary>
/// <param name="opData">Data to use</param>
/// <param name="error">Error message (null if sucessful, otherwise will contain information about the failure)</param>
/// <returns>True if operation was successful, false if otherwise</returns>
public override bool Run(IOpData opData, out string error)
{
if (opData.ItemCount < 1)
{
error = Err.OpNotEnoughItems;
return(false);
}
using Ripemd160 hash = new Ripemd160();
opData.Push(hash.ComputeHash(opData.Pop()));
error = null;
return(true);
}
public void ComputeHash_ExceptionsTest()
{
byte[] goodBa = { 1, 2, 3 };
Ripemd160 rip = new Ripemd160();
Assert.Throws <ArgumentNullException>(() => rip.ComputeHash(null));
Assert.Throws <ArgumentNullException>(() => rip.ComputeHash(null, 0, 1));
Assert.Throws <IndexOutOfRangeException>(() => rip.ComputeHash(goodBa, 0, 5));
Assert.Throws <IndexOutOfRangeException>(() => rip.ComputeHash(goodBa, 10, 1));
rip.Dispose();
Assert.Throws <ObjectDisposedException>(() => rip.ComputeHash(goodBa));
Assert.Throws <ObjectDisposedException>(() => rip.ComputeHash(goodBa, 0, 2));
}
public void ComputeHash_ProgressiveTest(byte[] message, byte[] expectedHash)
{
using Ripemd160 rip = new Ripemd160();
byte[] actualHash = rip.ComputeHash(message);
Assert.Equal(expectedHash, actualHash);
}
private byte[] ComputeHash160(byte[] data)
{
using var sha = System.Security.Cryptography.SHA256.Create();
using var rip = new Ripemd160();
return(rip.ComputeHash(sha.ComputeHash(data)));
}