public Rfc2898DeriveBytes(string password, int saltSize, int iterations, HashAlgorithmName hashAlgorithm)
{
if (saltSize < 0)
{
throw new ArgumentOutOfRangeException(nameof(saltSize), SR.ArgumentOutOfRange_NeedNonNegNum);
}
if (saltSize < MinimumSaltSize)
{
throw new ArgumentException(SR.Cryptography_PasswordDerivedBytes_FewBytesSalt, nameof(saltSize));
}
if (iterations <= 0)
{
throw new ArgumentOutOfRangeException(nameof(iterations), SR.ArgumentOutOfRange_NeedPosNum);
}
_salt = Helpers.GenerateRandom(saltSize);
_iterations = (uint)iterations;
_password = Encoding.UTF8.GetBytes(password);
HashAlgorithm = hashAlgorithm;
_hmac = OpenHmac();
// _blockSize is in bytes, HashSize is in bits.
_blockSize = _hmac.HashSize >> 3;
Initialize();
}
public Rfc2898DeriveBytes(string password, int saltSize, int iterations)
{
if (saltSize < 0)
{
throw new ArgumentOutOfRangeException(nameof(saltSize), SR.ArgumentOutOfRange_NeedNonNegNum);
}
if (saltSize < MinimumSaltSize)
{
throw new ArgumentException(SR.Cryptography_PasswordDerivedBytes_FewBytesSalt, nameof(saltSize));
}
if (iterations <= 0)
{
throw new ArgumentOutOfRangeException(nameof(iterations), SR.ArgumentOutOfRange_NeedPosNum);
}
_salt = Helpers.GenerateRandom(saltSize);
_iterations = (uint)iterations;
_password = Encoding.UTF8.GetBytes(password);
_hmacSha1 = new HMACSHA1(_password);
Initialize();
}
public HMACSHA1()
: this(Helpers.GenerateRandom(BlockSize))
{
}
public HMACGost3411()
: this(Helpers.GenerateRandom(BlockSize))
{
}
public HMACSHA512()
: this(Helpers.GenerateRandom(128))
{
}
public HMACSHA1()
: this(Helpers.GenerateRandom(64))
{
}
public void GenerateKey()
{
byte[] key = Helpers.GenerateRandom(AsymmetricAlgorithmHelpers.BitsToBytes(_outer.BaseKeySize));
SetKey(key);
}
public void GenerateIV()
{
byte[] iv = Helpers.GenerateRandom(AsymmetricAlgorithmHelpers.BitsToBytes(_outer.BlockSize));
_outer.IV = iv;
}
public HMACMD5()
: this(Helpers.GenerateRandom(64))
{
}