/// <summary>
/// Validates a password using two hash values
/// </summary>
public static bool ValidatePasswordHashV1(PasswordRequestv1 request)
{
Validation.IsNotNull(request, "request");
if (request.PlainPassword == request.PreHash || request.PlainPassword == request.PostHash)
{
return(false);
}
return(ValidatePasswordV2(request));
}
/// <summary>
///
/// </summary>
public static string ComputeHashV1(PasswordRequestv1 request)
{
Validation.IsNotNull(request, "request");
using (SHA1 sha = new SHA1CryptoServiceProvider())
{
var p1 = Convert.FromBase64String(request.PreHash);
var p2 = System.Text.Encoding.Unicode.GetBytes(request.PlainPassword);
var p3 = Convert.FromBase64String(request.PostHash);
var data = new byte[p1.Length + p2.Length + p3.Length];
p1.CopyTo(data, 0);
p2.CopyTo(data, p1.Length);
p3.CopyTo(data, p3.Length);
return(Convert.ToBase64String(sha.ComputeHash(data)));
}
}
private static bool ValidatePasswordV2(PasswordRequestv1 request)
{
Validation.IsNotNull(request, "request");
return(request.HashedPassword.Equals(ComputeHashV1(request)));
}
private static string GeneratePasswordHashV1(PasswordRequestv1 request)
{
Validation.IsNotNull(request, "request");
return(request.PlainPassword);
}
