C

Hash Algorithms: SHA-1, HAVAL, MD2, MD5, SHA-256, SHA-384, SHA-512

See more Encryption Examples

How to create hashes (message digests) for strings. C

#include <C_CkCrypt2.h>

void ChilkatSample(void)
    {
    HCkCrypt2 crypt;
    const char *s;
    const char *hash;

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

    crypt = CkCrypt2_Create();

    s = "The quick brown fox jumps over the lazy dog";

    CkCrypt2_putHashAlgorithm(crypt,"sha1");
    CkCrypt2_putEncodingMode(crypt,"hex");

    //  Other possible EncodingMode settings are: 
    //  "quoted-printable", "base64","url", and many more..

    hash = CkCrypt2_hashStringENC(crypt,s);
    printf("SHA1: %s\n",hash);

    //  Hash using MD2
    CkCrypt2_putHashAlgorithm(crypt,"md2");
    hash = CkCrypt2_hashStringENC(crypt,s);
    printf("MD2: %s\n",hash);

    //  Hash using MD5
    CkCrypt2_putHashAlgorithm(crypt,"md5");
    hash = CkCrypt2_hashStringENC(crypt,s);
    printf("MD5: %s\n",hash);

    //  Note: SHA-2 is a set of cryptographic hash functions (SHA-224, SHA-256, SHA-384, SHA-512)

    //  Hash using SHA-256
    CkCrypt2_putHashAlgorithm(crypt,"sha256");
    hash = CkCrypt2_hashStringENC(crypt,s);
    printf("SHA256: %s\n",hash);

    //  Hash using SHA-384
    CkCrypt2_putHashAlgorithm(crypt,"sha384");
    hash = CkCrypt2_hashStringENC(crypt,s);
    printf("SHA384: %s\n",hash);

    //  Hash using SHA-512
    CkCrypt2_putHashAlgorithm(crypt,"sha512");
    hash = CkCrypt2_hashStringENC(crypt,s);
    printf("SHA512: %s\n",hash);

    //  Hash using HAVAL
    //  There are two additional properties relevant to HAVAL:
    //  HavalRounds, and KeyLength.
    //  HavalRounds can have values of 3, 4, or 5.
    //  KeyLength can have values of 128, 160, 192, 224, or 256
    CkCrypt2_putHashAlgorithm(crypt,"haval");
    CkCrypt2_putHavalRounds(crypt,5);
    CkCrypt2_putKeyLength(crypt,256);
    hash = CkCrypt2_hashStringENC(crypt,s);
    printf("Haval: %s\n",hash);

    //  Hashes for "The quick brown fox jumps over the lazy dog"

    //  SHA1:
    //  2FD4E1C67A2D28FCED849EE1BB76E7391B93EB12

    //  MD2:
    //  03D85A0D629D2C442E987525319FC471

    //  MD5:
    //  9E107D9D372BB6826BD81D3542A419D6

    //  SHA256:
    //  D7A8FBB307D7809469CA9ABCB0082E4F8D5651E46D3CDB762D02D0BF37C9E592

    //  SHA384:
    //  CA737F1014A48F4C0B6DD43CB177B0AFD9E5169367544C494011E3317DBF9A509CB1E5DC1E85A941BBEE3D7F2AFBC9B1

    //  SHA512:
    //  07E547D9586F6A73F73FBAC0435ED76951218FB7D0C8D788A309D785436BBB642E93A252A954F23912547D1E8A3B5ED6E1BFD7097821233FA0538F3DB854FEE6

    //  Haval:
    //  B89C551CDFE2E06DBD4CEA2BE1BC7D557416C58EBB4D07CBC94E49F710C55BE4


    CkCrypt2_Dispose(crypt);

    }