(C) RSA OAEP Padding

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

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#include <C_CkRsa.h>

void ChilkatSample(void)
    {
    HCkRsa rsa;
    const char *publicKey;
    BOOL success;
    const char *plainText;
    BOOL usePrivateKey;
    const char *encryptedStr;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    rsa = CkRsa_Create();

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

    success = CkRsa_ImportPublicKey(rsa,publicKey);

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

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

    plainText = "RSA Encryption should be easy.";

    usePrivateKey = FALSE;
    encryptedStr = CkRsa_encryptStringENC(rsa,plainText,usePrivateKey);
    printf("%s\n",encryptedStr);


    CkRsa_Dispose(rsa);

    }