C

WPA Key Calculation from PassPhrase to Hex

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Demonstrates how to calculate a WPA key from a passprhase and network SSID. C

#include <C_CkCrypt2.h>

void ChilkatSample(void)
    {
    HCkCrypt2 crypt;
    const char *wpaHexKey;
    const char *pw;
    const char *pwCharset;
    const char *hashAlg;
    const char *ssidHex;
    int iterationCount;
    int outputBitLen;
    const char *enc;

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

    crypt = CkCrypt2_Create();

    // The "ps" is the WPA passphrase
    pw = "password";
    pwCharset = "ansi";

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

    // Specify the SSID in hex:
    // For example, if the SSID is "ABC", then the 
    // hex values for these us-ascii chars is "414243"
    ssidHex = "414243";

    // The WPA key calculation will always use 4096 iterations.
    iterationCount = 4096;

    // The WPA hex output should be 256 bits.
    outputBitLen = 256;

    // Indicate that "hex" is to be returned.
    enc = "hex";

    wpaHexKey = CkCrypt2_pbkdf2(crypt,pw,pwCharset,hashAlg,ssidHex,iterationCount,outputBitLen,enc);

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


    CkCrypt2_Dispose(crypt);

    }