ValidateUser - ABBYY Documentation

Checks whether a user name and a password match the values in the database.

Definition

bool ValidateUser( string userName, string passwordHash );

Parameters

Name	Type	Description
`userName`	`string`	The user name.
`passwordHash`	`string`	The hash of the password.

Returned value

Type	Description
`bool`	Indicates whether the user name and the password match the values in the database. Possible values: `true` (the values match), `false` (the values do not match).

Calculate the password hash

The following C# code hashes the password with a salt derived from the login.

public static string GetPasswordHashWithSalt( string login, string password )
{
    string salt = GetPasswordSha256Hash(login.ToUpper());
    return GetPasswordSha256Hash(password + salt);
}

private static string GetPasswordSha256Hash( string password )
{
    Encoding enc = Encoding.GetEncoding("UTF-16");
    byte[] buffer = enc.GetBytes(password);
    var cryptoTransformSHA256 = new SHA256CryptoServiceProvider();
    string hash = BitConverter.ToString(cryptoTransformSHA256.ComputeHash(buffer)).Replace("-", "");
    return hash;
}