(Unicode 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_CkRsaW.h>

void ChilkatSample(void)
    {
    HCkRsaW rsa;
    const wchar_t *publicKey;
    BOOL success;
    const wchar_t *plainText;
    BOOL usePrivateKey;
    const wchar_t *encryptedStr;

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

    rsa = CkRsaW_Create();

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

    success = CkRsaW_ImportPublicKey(rsa,publicKey);

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

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

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

    usePrivateKey = FALSE;
    encryptedStr = CkRsaW_encryptStringENC(rsa,plainText,usePrivateKey);
    wprintf(L"%s\n",encryptedStr);


    CkRsaW_Dispose(rsa);

    }