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(C) Generate RSA Public/Private Key

C example code showing how to generate an RSA public/private key.

Chilkat C/C++ Library Downloads

MS Visual C/C++

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#include <C_CkRsa.h>

void ChilkatSample(void)
    {
    HCkRsa rsa;
    BOOL success;
    const char *publicKey;
    const char *privateKey;

    rsa = CkRsa_Create();

    success = CkRsa_UnlockComponent(rsa,"Anything for 30-day trial");
    if (success != TRUE) {
        printf("%s\n",CkRsa_lastErrorText(rsa));
        CkRsa_Dispose(rsa);
        return;
    }

    //  Generate a 1024-bit key.  Chilkat RSA supports
    //  key sizes ranging from 512 bits to 4096 bits.
    //  Note: Starting in Chilkat v9.5.0.49, RSA key sizes can be up to 8192 bits.
    //  It takes a considerable amount of time and processing power to generate
    //  an 8192-bit key.
    success = CkRsa_GenerateKey(rsa,1024);
    if (success != TRUE) {
        printf("%s\n",CkRsa_lastErrorText(rsa));
        CkRsa_Dispose(rsa);
        return;
    }

    //  Keys are exported in XML format:
    publicKey = CkRsa_exportPublicKey(rsa);
    printf("%s\n",publicKey);

    privateKey = CkRsa_exportPrivateKey(rsa);
    printf("%s\n",privateKey);


    CkRsa_Dispose(rsa);

    }

 

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