/// <summary>
/// Verify the given Argon2 hash as being that of the given password.
/// </summary>
/// <param name="encoded">
/// The Argon2 hash string. This has the actual hash along with other parameters used in the hash.
/// </param>
/// <param name="password">
/// The password to verify
/// </param>
/// <returns>
/// True on success; false otherwise.
/// </returns>
public static bool Verify(
string encoded,
byte[] password)
{
SecureArray <byte> hash = null;
try
{
var configToVerify = new Argon2Config {
Password = password
};
if (!configToVerify.DecodeString(encoded, out hash) || hash == null)
{
return(false);
}
var hasherToVerify = new Argon2(configToVerify);
var hashToVerify = hasherToVerify.Hash();
return(!hash.Buffer.Where((b, i) => b != hashToVerify[i]).Any());
}
finally
{
hash?.Dispose();
}
}
/// <summary>
/// Verify the given Argon2 hash as being that of the given password.
/// </summary>
/// <param name="encoded">
/// The Argon2 hash string. This has the actual hash along with other parameters used in the hash.
/// </param>
/// <param name="configToVerify">
/// The configuration that contains the values used to created <paramref name="encoded"/>.
/// </param>
/// <returns>
/// True on success; false otherwise.
/// </returns>
public static bool Verify(
string encoded,
Argon2Config configToVerify)
{
SecureArray <byte> hash = null;
try
{
if (!configToVerify.DecodeString(encoded, out hash) || hash == null)
{
return(false);
}
using (var hasherToVerify = new Argon2(configToVerify))
{
using (var hashToVerify = hasherToVerify.Hash())
{
return(!hash.Buffer.Where((b, i) => b != hashToVerify[i]).Any());
}
}
}
finally
{
hash?.Dispose();
}
}