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RSA OAEP Padding

Demonstrates how to use OAEP padding with the RSA encryption algorithm. More information about OAEP Padding.

Download Chilkat C++ Libraries for VC++ 8.0 / Win32

Download Chilkat C++ Libraries for VC++ 7.0 / Win32

Download Chilkat C++ Libraries for VC++ 6.0 / Win32

#include <CkRsa.h>
#include <CkString.h>

void ChilkatSample(void)
    {
    CkRsa rsa;

    bool success;
    success = rsa.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        printf("RSA component unlock failed\n");
        return;
    }

    //  RSA public key in XML format:
    CkString publicKey;
    publicKey = "<RSAKeyValue><Modulus>of3im3mRgd2NLXIGoK6uYLg6jj0Ug2b42rnqa5Tbwz2ieFqMJqt+++x2oqLYGurlz49nt+7/785g3XYWqoka4u9c9zul6YubIjnBM72dQy7rEkEfbUxgjcxqXyjZFx+FpaxFUecLu688XEu+9UA42VKiCgcl+E7TrqnfeeYpNXc=</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>";

    rsa.ImportPublicKey(publicKey);

    //  To use Optimal Asymmetric Encryption Padding (OAEP) padding,
    //  simply set the OaepPadding property:
    rsa.put_OaepPadding(true);

    //  Encrypt a string and return the encrypted data base64-encoded:
    rsa.put_EncodingMode("base64");

    CkString plainText;
    plainText = "RSA Encryption should be easy.";

    bool usePrivateKey;
    usePrivateKey = false;
    CkString encryptedStr;
    encryptedStr = rsa.encryptStringENC(plainText,usePrivateKey);
    printf("%s\n",(const char *)encryptedStr);
    }

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