public static CryptoEncryptedPacket Encrypt(string plainText, RSAParameters publicKey)
{
var sessionKey = CryptoRandom.Generate(32);
var encryptedPacket = new CryptoEncryptedPacket {
Iv = CryptoRandom.Generate(16)
};
encryptedPacket.EncryptedData = CryptoAes.Encrypt(plainText, sessionKey, encryptedPacket.Iv);
encryptedPacket.EncryptedSessionKey = CryptoRsa.Encrypt(sessionKey, publicKey);
return(encryptedPacket);
}
public static CryptoEncryptedPacket Encrypt(string plainText, CryptoRSAParameters rsaParameters)
{
var sessionKey = CryptoRandom.Generate(32);
var encryptedPacket = new CryptoEncryptedPacket {
Iv = CryptoRandom.Generate(16)
};
encryptedPacket.EncryptedData = CryptoAes.Encrypt(plainText, sessionKey, encryptedPacket.Iv);
encryptedPacket.EncryptedSessionKey = CryptoRsa.Encrypt(sessionKey, rsaParameters.publicKey);
encryptedPacket.Hmac = CryptoHmac.Sha256(encryptedPacket.EncryptedData, sessionKey);
encryptedPacket.Signature = CryptoDigitalSignature.Sign(encryptedPacket.Hmac, rsaParameters.privateKey);
return(encryptedPacket);
}