/// <summary>
/// Registers a Hash Digest Computation Method.
/// </summary>
/// <param name="HashComputationMethod">Hash Digest Computation Method.</param>
/// <param name="HashMethodTypeName">Hash Digest Computation Method Type Name.</param>
/// <param name="LoginAuditor">Auditor of login attempts.</param>
/// <param name="Lock">If the registration should be locked.</param>
public static void Register(HashComputationMethod HashComputationMethod, string HashMethodTypeName, LoginAuditor LoginAuditor, bool Lock)
{
if (hashMethodLocked)
{
throw new InvalidOperationException("Hash method already registered, and locked.");
}
loginAuditor = LoginAuditor;
hashMethod = HashComputationMethod;
hashMethodTypeName = HashMethodTypeName;
hashMethodLocked = Lock;
}
/// <summary>
/// Computes a hash of a password.
/// </summary>
/// <param name="UserName">User name.</param>
/// <param name="Password">Password.</param>
public static byte[] ComputeHash(string UserName, string Password)
{
HashComputationMethod h = hashMethod;
if (h is null)
{
return(Hashes.ComputeSHA256Hash(Encoding.UTF8.GetBytes(UserName + ":" + Password)));
}
else
{
return(h(UserName, Password));
}
}