private IDigest GetDigest(THashAlgorithm hashAlgorithm)
{
IDigest result = null;
switch (hashAlgorithm)
{
case THashAlgorithm.None:
result = new NullDigest();
break;
case THashAlgorithm.MD5:
result = new MD5Digest();
break;
case THashAlgorithm.SHA1:
result = new Sha1Digest();
break;
case THashAlgorithm.SHA224:
result = new Sha224Digest();
break;
case THashAlgorithm.SHA256:
result = new Sha256Digest();
break;
case THashAlgorithm.SHA384:
result = new Sha384Digest();
break;
case THashAlgorithm.SHA512:
result = new Sha512Digest();
break;
default:
break;
}
return(result);
}
public static IDigest GetDigest(string algorithm)
{
string text = Platform.ToUpperInvariant(algorithm);
string text2 = (string)DigestUtilities.algorithms[text];
if (text2 == null)
{
text2 = text;
}
try
{
switch ((DigestUtilities.DigestAlgorithm)Enums.GetEnumValue(typeof(DigestUtilities.DigestAlgorithm), text2))
{
case DigestUtilities.DigestAlgorithm.GOST3411:
{
IDigest result = new Gost3411Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.MD2:
{
IDigest result = new MD2Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.MD4:
{
IDigest result = new MD4Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.MD5:
{
IDigest result = new MD5Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.RIPEMD128:
{
IDigest result = new RipeMD128Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.RIPEMD160:
{
IDigest result = new RipeMD160Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.RIPEMD256:
{
IDigest result = new RipeMD256Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.RIPEMD320:
{
IDigest result = new RipeMD320Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.SHA_1:
{
IDigest result = new Sha1Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.SHA_224:
{
IDigest result = new Sha224Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.SHA_256:
{
IDigest result = new Sha256Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.SHA_384:
{
IDigest result = new Sha384Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.SHA_512:
{
IDigest result = new Sha512Digest();
return(result);
}
case DigestUtilities.DigestAlgorithm.SHA_512_224:
{
IDigest result = new Sha512tDigest(224);
return(result);
}
case DigestUtilities.DigestAlgorithm.SHA_512_256:
{
IDigest result = new Sha512tDigest(256);
return(result);
}
case DigestUtilities.DigestAlgorithm.SHA3_224:
{
IDigest result = new Sha3Digest(224);
return(result);
}
case DigestUtilities.DigestAlgorithm.SHA3_256:
{
IDigest result = new Sha3Digest(256);
return(result);
}
case DigestUtilities.DigestAlgorithm.SHA3_384:
{
IDigest result = new Sha3Digest(384);
return(result);
}
case DigestUtilities.DigestAlgorithm.SHA3_512:
{
IDigest result = new Sha3Digest(512);
return(result);
}
case DigestUtilities.DigestAlgorithm.TIGER:
{
IDigest result = new TigerDigest();
return(result);
}
case DigestUtilities.DigestAlgorithm.WHIRLPOOL:
{
IDigest result = new WhirlpoolDigest();
return(result);
}
}
}
catch (ArgumentException)
{
}
throw new SecurityUtilityException("Digest " + text2 + " not recognised.");
}
public ITestResult Perform()
{
IDigest digest = new Sha224Digest();
byte[] resBuf = new byte[digest.GetDigestSize()];
string resStr;
//
// test 1
//
digest.DoFinal(resBuf, 0);
resStr = Hex.ToHexString(resBuf);
if (!resVec1.Equals(resStr))
{
return(new SimpleTestResult(false,
"SHA-224 failing standard vector test 1"
+ SimpleTest.NewLine
+ " expected: " + resVec1
+ SimpleTest.NewLine
+ " got : " + resStr));
}
//
// test 2
//
byte[] bytes = Hex.Decode(testVec2);
digest.BlockUpdate(bytes, 0, bytes.Length);
digest.DoFinal(resBuf, 0);
resStr = Hex.ToHexString(resBuf);
if (!resVec2.Equals(resStr))
{
return(new SimpleTestResult(false,
"SHA-224 failing standard vector test 2"
+ SimpleTest.NewLine
+ " expected: " + resVec2
+ SimpleTest.NewLine
+ " got : " + resStr));
}
//
// test 3
//
bytes = Hex.Decode(testVec3);
digest.BlockUpdate(bytes, 0, bytes.Length);
digest.DoFinal(resBuf, 0);
resStr = Hex.ToHexString(resBuf);
if (!resVec3.Equals(resStr))
{
return(new SimpleTestResult(false,
"SHA-224 failing standard vector test 3"
+ SimpleTest.NewLine
+ " expected: " + resVec3
+ SimpleTest.NewLine
+ " got : " + resStr));
}
//
// test 4
//
bytes = Hex.Decode(testVec4);
digest.BlockUpdate(bytes, 0, bytes.Length);
digest.DoFinal(resBuf, 0);
resStr = Hex.ToHexString(resBuf);
if (!resVec4.Equals(resStr))
{
return(new SimpleTestResult(false,
"SHA-224 failing standard vector test 4"
+ SimpleTest.NewLine
+ " expected: " + resVec4
+ SimpleTest.NewLine
+ " got : " + resStr));
}
//
// test 5
//
bytes = Hex.Decode(testVec4);
digest.BlockUpdate(bytes, 0, bytes.Length / 2);
// clone the IDigest
IDigest d = new Sha224Digest((Sha224Digest)digest);
digest.BlockUpdate(bytes, bytes.Length / 2, bytes.Length - bytes.Length / 2);
digest.DoFinal(resBuf, 0);
resStr = Hex.ToHexString(resBuf);
if (!resVec4.Equals(resStr))
{
return(new SimpleTestResult(false,
"SHA-224 failing standard vector test 5"
+ SimpleTest.NewLine
+ " expected: " + resVec4
+ SimpleTest.NewLine
+ " got : " + resStr));
}
d.BlockUpdate(bytes, bytes.Length / 2, bytes.Length - bytes.Length / 2);
d.DoFinal(resBuf, 0);
resStr = Hex.ToHexString(resBuf);
if (!resVec4.Equals(resStr))
{
return(new SimpleTestResult(false,
"SHA-224 failing standard vector test 5"
+ SimpleTest.NewLine
+ " expected: " + resVec4
+ SimpleTest.NewLine
+ " got : " + resStr));
}
// test 6
bytes = Hex.Decode(testVec5);
for (int i = 0; i < 100000; i++)
{
digest.BlockUpdate(bytes, 0, bytes.Length);
}
digest.DoFinal(resBuf, 0);
resStr = Hex.ToHexString(resBuf);
if (!resVec5.Equals(resStr))
{
return(new SimpleTestResult(false,
"SHA-224 failing standard vector test 6"
+ SimpleTest.NewLine
+ " expected: " + resVec5
+ SimpleTest.NewLine
+ " got : " + resStr));
}
return(new SimpleTestResult(true, Name + ": Okay"));
}
public SHA224CryptoServiceProvider()
{
_digest = new Sha224Digest();
}
