This code will be good for encoding a message... but I would like to
generate an X509 certificate with RSA PSS with SHA256 and have CryptoPP
load, then verify this certificate. Is this possible to do?
Thanks,
Frank
On Tuesday, April 16, 2024 at 7:48:45 PM UTC-4 One Sini wrote:
> 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 <nolo...@gmail.com> schrieb am Di. 16. Apr. 2024 um 21:19:
>
>>
>>
>> On Tue, Apr 16, 2024 at 1:44 PM One Sini <one...@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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>>
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>> .
>>
>
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