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(C++) 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 <CkCrypt2.h>

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

    CkCrypt2 crypt;

    const char *hexKey = 0;
    // http://www.di-mgt.com.au/cryptoKDFs.html#examplespbkdf

    const char *pw = "password";
    const char *pwCharset = "ansi";
    // Hash algorithms may be: sha1, md2, md5, etc.
    const char *hashAlg = "sha1";
    // The salt should be 8 bytes:
    const char *saltHex = "78578E5A5D63CB06";
    int iterationCount = 2048;
    // Derive a 192-bit key from the password.
    int 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.)
    const char *enc = "hex";

    hexKey = crypt.pbkdf2(pw,pwCharset,hashAlg,saltHex,iterationCount,outputBitLen,enc);

    std::cout << hexKey << "\r\n";

    // The output should have this value:
    // BFDE6BE94DF7E11DD409BCE20A0255EC327CB936FFE9364
    }

 

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