the code
#include <iostream>
#include <cryptopp/rsa.h>
#include <cryptopp/filters.h>
#include <cryptopp/osrng.h>
#include <cryptopp/sha.h>
#include <cryptopp/hex.h>
int main() {
// Generate RSA keys with 2048 bits
CryptoPP::AutoSeededRandomPool rng;
CryptoPP::RSA::PrivateKey
privateKey; privateKey.GenerateRandomWithKeySize(rng, 2048);
CryptoPP::RSA::PublicKey publicKey;
publicKey.AssignFrom(privateKey);
// Message
std::string message = "secret";
// Encrypt with OAEP padding
CryptoPP::RSAES_OAEP_SHA_Encryptor encryptor(publicKey);
std::string encrypted;
CryptoPP::StringSource(message, true,
new CryptoPP::PK_EncryptorFilter(rng, encryptor,
new CryptoPP::StringSink(encrypted)
)
);
// Decrypt
CryptoPP::RSAES_OAEP_SHA_Decryptor decryptor(privateKey);
std::string decrypted;
CryptoPP::StringSource(encrypted, true,
new CryptoPP::PK_DecryptorFilter(rng, decryptor,
new CryptoPP::StringSink(decrypted)
)
);
// Print results
std::cout << "Original message: " << message << std::endl;
std::cout << "Encrypted message (hex): ";
CryptoPP::StringSource(encrypted, true,
new CryptoPP::HexEncoder(
new CryptoPP::FileSink(std::cout)
)
);
std::cout << std::endl;
std::cout << "Decrypted message: " << decrypted << std::endl;
return 0;
}
Jeffrey Walton <noloa...@gmail.com> schrieb am Di. 16. Apr. 2024 um 21:19:
>
>
> On Tue, Apr 16, 2024 at 1:44 PM One Sini <ones...@gmail.com> wrote:
>
>> I wasn't entirely satisfied with the security, so I've adjusted the code.
>> I'm not sure if that helps you, depending on what you're doing with it.
>>
>> This code uses RSA with OAEP (Optimal Asymmetric Encryption Padding) to
>> avoid security issues like padding oracle attacks. It generates RSA keys
>> with a length of 2048 bits, encrypts the message with OAEP padding, and
>> then decrypts it.
>>
>> Best Regards Satoshi
>>
>
> I deleted the message from the group. The *.pdf and *.pages smells of
> malware.
>
> If you want to provide code, please inline it or provide it as a text
> attachment.
>
> Jeff
>
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