internal static void ValidatePbeParameters(
PbeParameters pbeParameters,
ReadOnlySpan <char> password,
ReadOnlySpan <byte> passwordBytes)
{
// Leave the ArgumentNullException in the public entrypoints.
Debug.Assert(pbeParameters != null);
// Constructor promise.
Debug.Assert(pbeParameters.IterationCount > 0);
PbeEncryptionAlgorithm encryptionAlgorithm = pbeParameters.EncryptionAlgorithm;
switch (encryptionAlgorithm)
{
case PbeEncryptionAlgorithm.Aes128Cbc:
case PbeEncryptionAlgorithm.Aes192Cbc:
case PbeEncryptionAlgorithm.Aes256Cbc:
return;
case PbeEncryptionAlgorithm.TripleDes3KeyPkcs12:
{
if (pbeParameters.HashAlgorithm != HashAlgorithmName.SHA1)
{
throw new CryptographicException(
SR.Cryptography_UnknownHashAlgorithm,
pbeParameters.HashAlgorithm.Name);
}
if (passwordBytes.Length > 0 && password.Length == 0)
{
throw AlgorithmKdfRequiresChars(
encryptionAlgorithm.ToString());
}
return;
}
}
throw new CryptographicException(
SR.Cryptography_UnknownAlgorithmIdentifier,
encryptionAlgorithm.ToString());
}
public static string Encrypt(this string text, string keyString, PbeEncryptionAlgorithm encryptionAlgorithm = PbeEncryptionAlgorithm.Aes256Cbc)
{
var encryptedString = string.Empty;
switch (encryptionAlgorithm)
{
case PbeEncryptionAlgorithm.Unknown:
throw new ArgumentException("Encryption algorithm not set");
case PbeEncryptionAlgorithm.Aes128Cbc:
if (keyString.Length < 16)
{
throw new ArgumentException("Encryption key should be at least 128 bits");
}
encryptedString = EncryptWithAes(text, keyString);
break;
case PbeEncryptionAlgorithm.Aes192Cbc:
if (keyString.Length < 24)
{
throw new ArgumentException("Encryption key should be at least 192 bits");
}
encryptedString = EncryptWithAes(text, keyString);
break;
case PbeEncryptionAlgorithm.Aes256Cbc:
if (keyString.Length < 32)
{
throw new ArgumentException("Encryption key should be at least 256 bits");
}
encryptedString = EncryptWithAes(text, keyString);
break;
case PbeEncryptionAlgorithm.TripleDes3KeyPkcs12:
encryptedString = EncryptWith3Des(text, keyString);
break;
default:
throw new ArgumentOutOfRangeException(nameof(encryptionAlgorithm), encryptionAlgorithm, null);
}
return(encryptedString);
}
public PbeParameters(PbeEncryptionAlgorithm encryptionAlgorithm, HashAlgorithmName hashAlgorithm, int iterationCount)
{
}
