Further info:
*without -static*, this is the output from the remote server:
broker got data of size 512
Broker handler thread started... 512
first two bytes are 128 and 198 and 154
*clear text begins with 68 180 -------------->> this should be 00 02*
Either no 00 02 beginning block or no 00 separator byte found in proper
range
Decryption failed
Exception occurred: 'NoneType' object has no attribute 'decode'
with -static flag, this is the output from the remote server:
broker got data of size 512
Broker handler thread started... 512
first two bytes are 51 and 252 and 242
*clear text begins with 0 2 -------------> this is the correct value*
Got base64 bytes
b'eyJtZXNzYWdlIjoiMSIsInRybiI6MzM0NjQ1NjksInNlc3Npb24iOiJzc2Vzc2lvbiIsInBhc3Njb2RlIjoic3Bhc3Njb2RlIiwiZGF0ZXRpbWUiOiIwNC8yNS8yMDIzIDE4OjE1OjA0LjEwOCIsInNlcmlhbCI6InNzZXJpYWwiLCJjYW1lcmFfcG9ydCI6NTAwMCwia2V5IjoiTURObE1XWTBOMlUyTnpFNE1HTXdaak5pWkRZeE1UZ3haVGcyT0dFd05XST0iLCJpdiI6Ik9ETmtZMk0zTVdJek5UUmtaVFUyTUROak1HVTRaakptWlRNME5UQmhZMk09IiwidCI6Mn0='
initializing the lock...
On Tuesday, April 25, 2023 at 2:33:23 PM UTC-4 Dwight Kulkarni wrote:
> Hi all,
>
> I have my RSA encrypt function as below.
>
> I compile my program with the following:
>
> g++ -g -c -static -pthread -I../ -I/data/prj/external-libs/include/cryptopp/
> ../src/threading/server.cpp
>
> g++ -g ../lbin/*.o -static -pthread -o server -L/data/prj/external-libs/lib/
> -l:libcryptopp.a
>
> Here is what is strange.
>
> If I include the -static flag, when I run the encrypt_rsa command below on
> the remote server it correctly decrypts.
>
> If I remove the -static flag, on the remove server it doesn't get the
> proper message. However, the message that locally encrypted and decrypted
> still works.
>
> It doesn't throw any error, encryption completes, but when the server
> receives it, it doesn't decrypt properly.
>
> During compilation of the .a library from makefile it did not have a
> -static flag.
>
>
>
>
> std::string encrypt_rsa(std::string message, CryptoPP::RSA::PublicKey key)
> {
>
> try{
> cout << " In encrypt rsa string " << endl;
> message = b64encode(message);
> CryptoPP::AutoSeededRandomPool rng;
>
> //CryptoPP::RSAES_OAEP_SHA_Encryptor encryptor(key);
> CryptoPP::RSAES_PKCS1v15_Encryptor encryptor(key);
> std::string ciphertext;
> CryptoPP::StringSource(message, true, new CryptoPP::PK_EncryptorFilter(rng,
> encryptor, new CryptoPP::StringSink(ciphertext)));
> return ciphertext;
>
> }
> catch(...)
> {
> std::cout << "error encrypting RSA";
> return "";
> }
> }
>
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