For others having the same difficulty, I was able to solve the problem
with the snippets below. It seems in the RSADecryptString function,
the ordering of the last function was wrong.
string RSAEncryptString(const string publicKey, const char *seed,
const string message)
{
StringSource pubString(publicKey, true, new HexDecoder);
RSAES_OAEP_SHA_Encryptor pub(pubString);
AutoSeededRandomPool randPool;
std::string result;
StringSource(message, true, new HexEncoder(new
PK_EncryptorFilter(randPool, pub, new StringSink(result))));
return result;
}
string RSADecryptString(const string privateKey, const string
ciphertext)
{
StringSource privString(privateKey, true, new HexDecoder);
RSAES_OAEP_SHA_Decryptor priv(privString);
AutoSeededRandomPool randPool;
std::string result;
StringSource(ciphertext, true,new
PK_DecryptorFilter(randPool,priv, new HexDecoder(new
StringSink(result))));
return result;
}
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