(Unicode C++) RSA Encrypt and OpenSSL Decrypt
Demonstrates how to use Chilkat to RSA encrypt, and then use OpenSSL to decrypt.
#include <CkRsaW.h>
#include <CkPrivateKeyW.h>
#include <CkBinDataW.h>
void ChilkatSample(void)
{
// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
CkRsaW rsa;
bool success = rsa.GenerateKey(2048);
CkPrivateKeyW *privKey = rsa.ExportPrivateKeyObj();
success = privKey->SavePkcs8PemFile(L"qa_output/privKey.pem");
delete privKey;
rsa.put_EncodingMode(L"base64");
const wchar_t *plainText = L"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234567890";
bool bUsePrivateKey = false;
const wchar_t *encryptedStr = rsa.encryptStringENC(plainText,bUsePrivateKey);
CkBinDataW bd;
bd.AppendEncoded(encryptedStr,L"base64");
success = bd.WriteFile(L"qa_output/enc.dat");
// The OpenSSL command to decrypt is:
// openssl pkeyutl -in enc.dat -inkey privKey.pem -keyform PEM -pkeyopt rsa_padding_mode:pkcs1 -decrypt
wprintf(L"OK\n");
}
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