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namespace DotNetOpenAuth.OAuth2.Crypto {
using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
internal class JweRsaEncryptionAlgorithm : JwtEncryptionAlgorithm {
private readonly RSACryptoServiceProvider recipientPublicKey;
private readonly bool useOaepPadding;
internal JweRsaEncryptionAlgorithm(RSACryptoServiceProvider recipientPublicKey, bool useOaepPadding = true)
: base(useOaepPadding ? JsonWebEncryptionAlgorithms.RSA_OAEP : JsonWebEncryptionAlgorithms.RSA1_5, JsonWebEncryptionMethods.A256CBC) {
Requires.NotNull(recipientPublicKey, "recipientPublicKey");
this.recipientPublicKey = recipientPublicKey;
this.useOaepPadding = useOaepPadding;
}
internal override void Encrypt(byte[] plainText, out byte[] cipherText, out byte[] integrityValue) {
cipherText = this.recipientPublicKey.Encrypt(plainText, this.useOaepPadding);
integrityValue = null; // RSA is an AEAD algorithm, so it doesn't need a separate integrity check.
}
internal override byte[] Decrypt(byte[] cipherText, byte[] integrityValue) {
throw new NotImplementedException();
}
}
}
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