/// <summary>
/// Encrypt a password
/// </summary>
/// <param name="account">Account information used to encrypt password</param>
/// <returns>
/// encrypted password.
/// </returns>
public string Encrypt(AccountPasswordInfo account)
{
if (account.PasswordSalt.IsEmpty())
{
account.PasswordSalt = Cryptography.GenerateSalt(32);
}
var saltAndPwd = String.Concat(account.Password, account.PasswordSalt);
var bytes = Encoding.UTF8.GetBytes(saltAndPwd);
string computedHash;
if (account.PasswordSalt.Length == 24)
{
var sha1 = SHA1.Create();
computedHash = Convert.ToBase64String(sha1.ComputeHash(bytes));
}
else
{
var sha1256 = SHA256.Create();
computedHash = Convert.ToBase64String(sha1256.ComputeHash(bytes));
}
return(computedHash);
}
/// <summary>
/// Encrypt a password
/// </summary>
/// <param name="account">Account information used to encrypt password</param>
/// <returns>
/// encrypted password.
/// </returns>
public string Encrypt(AccountPasswordInfo account)
{
if (account.PasswordSalt.IsEmpty())
{
account.PasswordSalt = Cryptography.GenerateSalt();
}
return(EncryptString(account.Password, account.PasswordSalt));
}
/// <summary>
/// Compare if the specified password matches the encrypted password
/// </summary>
/// <param name="account">Stored acount informagtion.</param>
/// <param name="clearTextPassword">Password specified by user.</param>
/// <returns>
/// true if passwords match; otherwise null
/// </returns>
public bool Compare(AccountPasswordInfo account, string clearTextPassword)
{
var clearTextInfo = new AccountPasswordInfo(account.UniqueID, clearTextPassword)
{
PasswordSalt = account.PasswordSalt
};
var password = this.Encrypt(clearTextInfo);
return(account.Password == password);
}
/// <summary>
/// Compare if the specified password matches the encrypted password
/// </summary>
/// <param name="account">Stored acount informagtion.</param>
/// <param name="clearTextPassword">Password specified by user.</param>
/// <returns>
/// true if passwords match; otherwise null
/// </returns>
public bool Compare(AccountPasswordInfo account, string clearTextPassword)
{
var clear = DecryptString(account.Password, account.PasswordSalt);
return(clearTextPassword == clear);
}