PBKDF2 - Derive Key from Password

Demonstrates how to derive a symmetric encryption key from a password using PBKDF2. This example matches the results found at this URL: http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

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#include <C_CkCrypt2.h>

void ChilkatSample(void)
    {
    HCkCrypt2 crypt;
    BOOL success;
    const char * hexKey;
    const char * pw;
    const char * pwCharset;
    const char * hashAlg;
    const char * saltHex;
    long iterationCount;
    long outputBitLen;
    const char * enc;

    crypt = CkCrypt2_Create();

    success = CkCrypt2_UnlockComponent(crypt,"Anything for 30-day trial");
    if (success != TRUE) {
        printf("%s\n",CkCrypt2_lastErrorText(crypt));
        return;
    }

    //  http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

    pw = "password";

    pwCharset = "ansi";
    //  Hash algorithms may be: sha1, md2, md5, etc.

    hashAlg = "sha1";
    //  The salt should be 8 bytes:

    saltHex = "78578E5A5D63CB06";

    iterationCount = 2048;
    //  Derive a 192-bit key from the password.

    outputBitLen = 192;

    //  The derived key is returned as a hex or base64 encoded string.
    //  (Note: The salt argument must be a string that also uses
    //  the same encoding.)

    enc = "hex";

    hexKey = CkCrypt2_pbkdf2(crypt,pw,pwCharset,hashAlg,saltHex,iterationCount,outputBitLen,enc);

    printf("%s\n",hexKey);

    //  The output should have this value:
    //  BFDE6BE94DF7E11DD409BCE20A0255EC327CB936FFE93643



    CkCrypt2_Dispose(crypt);

    }