/// <summary>
/// Validates the password against the existing hash.
/// </summary>
/// <param name="password">The password. This cannot be null.</param>
/// <param name="encodedHash">The encoded hash. This cannot be empty or null.</param>
/// <returns></returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="password"/> cannot be null. <paramref name="encodedHash"/> cannot be empty or null.
/// </exception>
public static bool ValidatePassword(string password, string encodedHash)
{
if (password == null)
{
throw new ArgumentNullException(nameof(password));
}
if (string.IsNullOrEmpty(encodedHash))
{
throw new ArgumentNullException(nameof(encodedHash));
}
int actualVersion;
byte[] actualSalt;
byte[] actualHash;
bool result = false;
if (TryDecodeSaltedHash(encodedHash, out actualVersion, out actualSalt, out actualHash))
{
HashSettings hashSettings = HashSettings.GetHashSettings(actualVersion);
byte[] expectedHash = CreateSaltedHash(password, actualSalt, hashSettings.IterationsCount, actualHash.Length);
result = CompareHashes(expectedHash, actualHash);
}
return(result);
}
/// <summary>
/// Creates the salted hash using the default <see cref="HashSettings"/>.
/// </summary>
/// <param name="input">The input.</param>
/// <returns></returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="input"/> cannot be null.
/// </exception>
public static string CreateEncodedSaltedHash(string input)
{
if (string.IsNullOrEmpty(input))
{
throw new ArgumentNullException(nameof(input));
}
// Get the current hash settings
HashSettings hashSettings = HashSettings.GetHashSettings( );
return(CreateEncodedSaltedHash(input, hashSettings));
}
