PBKDF1 - Derive Key from Password

Demonstrates how to derive a symmetric encryption key from a password using PBKDF1. This example matches the results found at this URL: http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

It also matches the output produced by the .NET Framework using this C# code:

            byte[] salt = new byte[] { 0x78, 0x57, 0x8E, 0x5A, 0x5D, 0x63, 0xCB, 0x06 };
            PasswordDeriveBytes cdk = new PasswordDeriveBytes("password", salt);

            cdk.IterationCount = 1000;
            cdk.HashName = "SHA1";

            // generate a 16-byte key
            byte[] key = cdk.GetBytes(16);

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#include <CkCrypt2.h>

void ChilkatSample(void)
    {
    CkCrypt2 crypt;

    bool success;
    success = crypt.UnlockComponent("Anything for 30-day trial");
    if (success != true) {
        printf("%s\n",crypt.lastErrorText());
        return;
    }

    const char * hexKey;
    //  http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

    const char * pw;
    pw = "password";
    const char * pwCharset;
    pwCharset = "ansi";
    //  Hash algorithms may be: sha1, md2, md5, etc.
    const char * hashAlg;
    hashAlg = "sha1";
    //  The salt should be 8 bytes:
    const char * saltHex;
    saltHex = "78578E5A5D63CB06";
    long iterationCount;
    iterationCount = 1000;
    //  Derive a 128-bit key from the password.
    long outputBitLen;
    outputBitLen = 128;

    //  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.)
    const char * enc;
    enc = "hex";

    hexKey = crypt.pbkdf1(pw,pwCharset,hashAlg,saltHex,iterationCount,outputBitLen,enc);

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

    //  The output should have this value:
    //  DC19847E05C64D2FAF10EBFB4A3D2A20

    }