Node.js

HMAC SHA-1 Matching FIPS Examples

See more Encryption Examples

Provides an example of computing an HMAC-SHA1 digest to duplicate the FIPS examples at http://csrc.nist.gov/publications/fips/fips198/fips-198a.pdf Node.js

NODEJS_PRELUDE

function chilkatExample() {

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

    var crypt = new chilkat.Crypt2();

    var strToSign = "Sample #1";

    // 64-byte key
    var key = "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f";

    // The expected result:
    // (from Appendix A.1 at http://csrc.nist.gov/publications/fips/fips198/fips-198a.pdf )
    var expectedResult = "4f4ca3d5d68ba7cc0a1208c9c61e9c5da0403c0a";

    // Here is the code to duplicate the results:
    crypt.HashAlgorithm = "sha-1";
    crypt.EncodingMode = "hex";
    crypt.MacAlgorithm = "hmac";

    crypt.SetMacKeyEncoded(key,"hex");

    var mac;
    mac = crypt.MacStringENC(strToSign);

    console.log("Computed: " + mac);
    console.log("Expected: " + expectedResult);

}

chilkatExample();