(C++) RSA Sign utf-8 Byte Representation of String
Demontstrates how to sign the utf-8 byte representation of a string. Note: This example requires Chilkat v11.0.0 or greater.
#include <CkPrivateKey.h>
#include <CkRsa.h>
void ChilkatSample(void)
{
bool success = false;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
// Load an RSA private key for signing.
CkPrivateKey privKey;
success = privKey.LoadEncryptedPemFile("qa_data/pem/rsa_passwd.pem","passwd");
if (success == false) {
std::cout << privKey.lastErrorText() << "\r\n";
return;
}
CkRsa rsa;
rsa.UsePrivateKey(privKey);
const char *originalData = "This is the string to be hashed an RSA signed.";
// Indicate that we want the utf-8 byte representation of the string to be signed
rsa.put_Charset("utf-8");
// We want the RSA signature in base64 format
rsa.put_EncodingMode("base64");
const char *sigBase64 = rsa.signStringENC(originalData,"sha256");
std::cout << sigBase64 << "\r\n";
}
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