public RsaKeyWrapper(RsaJwk key, EncryptionAlgorithm encryptionAlgorithm, KeyManagementAlgorithm algorithm)
: base(encryptionAlgorithm, algorithm)
{
Debug.Assert(key.SupportKeyManagement(algorithm));
Debug.Assert(algorithm.Category == AlgorithmCategory.Rsa);
_key = key;
#if SUPPORT_SPAN_CRYPTO
_rsa = RSA.Create(key.ExportParameters());
#else
#if NET461 || NET47
_rsa = new RSACng();
#else
_rsa = RSA.Create();
#endif
_rsa.ImportParameters(key.ExportParameters());
#endif
_padding = algorithm.Id switch
{
AlgorithmId.RsaOaep => RSAEncryptionPadding.OaepSHA1,
AlgorithmId.Rsa1_5 => RSAEncryptionPadding.Pkcs1,
AlgorithmId.RsaOaep256 => RSAEncryptionPadding.OaepSHA256,
AlgorithmId.RsaOaep384 => RSAEncryptionPadding.OaepSHA384,
AlgorithmId.RsaOaep512 => RSAEncryptionPadding.OaepSHA512,
_ => throw ThrowHelper.CreateNotSupportedException_AlgorithmForKeyWrap(algorithm)
};
}
public RsaKeyUnwrapper(RsaJwk key, EncryptionAlgorithm encryptionAlgorithm, KeyManagementAlgorithm algorithm)
: base(encryptionAlgorithm, algorithm)
{
Debug.Assert(key.SupportKeyManagement(algorithm));
Debug.Assert(algorithm.Category == AlgorithmCategory.Rsa);
#if SUPPORT_SPAN_CRYPTO
_rsa = RSA.Create(key.ExportParameters());
#else
#if NET461 || NET47
_rsa = new RSACng();
#else
_rsa = RSA.Create();
#endif
_rsa.ImportParameters(key.ExportParameters());
#endif
_padding = RsaHelper.GetEncryptionPadding(algorithm.Id);
}