Go

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 Go

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

    crypt := chilkat.NewCrypt2()

    strToSign := "Sample #1"

    // 64-byte key
    key := "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f"

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

    // Here is the code to duplicate the results:
    crypt.SetHashAlgorithm("sha-1")
    crypt.SetEncodingMode("hex")
    crypt.SetMacAlgorithm("hmac")

    crypt.SetMacKeyEncoded(key,"hex")

    var mac *string = new(string)
    mac = crypt.MacStringENC(strToSign)

    fmt.Println("Computed: ", *mac)
    fmt.Println("Expected: ", expectedResult)

    crypt.DisposeCrypt2()