(Unicode C) Password_Digest = Base64 (SHA-1 ( nonce + created + SHA-1 (password) ) )

Demonstrates how to compute:

Password_Digest = Base64 (SHA-1 ( nonce + created + SHA-1 (password)))

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

#include <C_CkCrypt2W.h>
#include <C_CkPrngW.h>
#include <C_CkBinDataW.h>
#include <C_CkDateTimeW.h>

void ChilkatSample(void)
    {
    const wchar_t *password;
    HCkCrypt2W crypt;
    HCkPrngW prng;
    HCkBinDataW bd;
    HCkDateTimeW dt;
    const wchar_t *created;
    const wchar_t *passwordSha1;
    const wchar_t *passwordDigest;

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

    password = L"secret";

    crypt = CkCrypt2W_Create();
    CkCrypt2W_putHashAlgorithm(crypt,L"SHA-1");
    CkCrypt2W_putEncodingMode(crypt,L"base64");

    //  Generate a 16-byte random nonce
    prng = CkPrngW_Create();
    bd = CkBinDataW_Create();
    CkPrngW_GenRandomBd(prng,16,bd);

    //  Get the current date/time in a string with this format: 2010-06-08T07:26:50Z
    dt = CkDateTimeW_Create();
    CkDateTimeW_SetFromCurrentSystemTime(dt);
    created = CkDateTimeW_getAsTimestamp(dt,FALSE);
    CkBinDataW_AppendString(bd,created,L"utf-8");

    //  This example wishes to calculate a password digest like this:
    //  Password_Digest = Base64 ( SHA-1 ( nonce + created + SHA-1(password) ) )

    //  First SHA-1 digest the password...
    passwordSha1 = CkCrypt2W_hashStringENC(crypt,password);
    //  Append the 20 binary bytes of the SHA1 hash to bd, which already contains the nonce and created date/time.
    CkBinDataW_AppendEncoded(bd,passwordSha1,L"base64");

    passwordDigest = CkCrypt2W_hashBdENC(crypt,bd);

    wprintf(L"Base64 password digest = %s\n",passwordDigest);


    CkCrypt2W_Dispose(crypt);
    CkPrngW_Dispose(prng);
    CkBinDataW_Dispose(bd);
    CkDateTimeW_Dispose(dt);

    }