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(Unicode C) HMAC SHA-1 Matching FIPS ExamplesProvides an example of computing an HMAC-SHA1 digest to duplicate the FIPS examples at http://csrc.nist.gov/publications/fips/fips198/fips-198a.pdf
#include <C_CkCrypt2W.h> void ChilkatSample(void) { HCkCrypt2W crypt; const wchar_t *strToSign; const wchar_t *key; const wchar_t *expectedResult; const wchar_t *mac; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. crypt = CkCrypt2W_Create(); strToSign = L"Sample #1"; // 64-byte key key = L"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f"; // The expected result: // (from Appendix A.1 at http://csrc.nist.gov/publications/fips/fips198/fips-198a.pdf ) expectedResult = L"4f4ca3d5d68ba7cc0a1208c9c61e9c5da0403c0a"; // Here is the code to duplicate the results: CkCrypt2W_putHashAlgorithm(crypt,L"sha-1"); CkCrypt2W_putEncodingMode(crypt,L"hex"); CkCrypt2W_SetHmacKeyEncoded(crypt,key,L"hex"); mac = CkCrypt2W_hmacStringENC(crypt,strToSign); wprintf(L"Computed: %s\n",mac); wprintf(L"Expected: %s\n",expectedResult); CkCrypt2W_Dispose(crypt); } |
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