protected override string ComputeSignatureCore(string key, string data)
{
Debug.Assert(!string.IsNullOrEmpty(data));
using (var algorithm = KeyedHash.Create(SignatureMethod.ToUpperInvariant()))
{
algorithm.Key = Encoding.GetBytes(key.ToCharArray());
return(Convert.ToBase64String(
algorithm.ComputeHash(Encoding.GetBytes(data.ToCharArray()))));
}
}
public void ComputeHash_SameKeyWithoutSalt_ComputesSameHash()
{
// Arrange
var secret = "my super secret password";
var key = KeyedHash.GenerateKey(128);
// Act
var result1 = KeyedHash.ComputeHash(secret, key);
var result2 = KeyedHash.ComputeHash(secret, key);
// Assert
Assert.Equal(result1.HashedData, result2.HashedData);
}
public void ComputeHash_DifferentKeyWithoutSalt_ComputesDifferentHash()
{
// Arrange
var secret = "my super secret password";
var key1 = KeyedHash.GenerateKey(128);
var key2 = KeyedHash.GenerateKey(128);
// Act
var result1 = KeyedHash.ComputeHash(secret, key1);
var result2 = KeyedHash.ComputeHash(secret, key2);
// Assert
Assert.NotEqual(result1.HashedData, result2.HashedData);
}
public void ComputeHash_SameKeyWithDifferentSalt_ComputesDifferentHash()
{
// Arrange
var secret = "my super secret password";
var key = KeyedHash.GenerateKey(128);
var salt1 = KeyedHash.GenerateSalt(128);
var salt2 = KeyedHash.GenerateSalt(128);
// Act
var result1 = KeyedHash.ComputeHash(secret, key, salt1);
var result2 = KeyedHash.ComputeHash(secret, key, salt2);
// Assert
Assert.NotEqual(result1.HashedData, result2.HashedData);
Assert.Equal(salt1, result1.Salt);
Assert.Equal(salt2, result2.Salt);
}
