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(Classic ASP) 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
<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> </head> <body> <% ' This example assumes the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. ' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Crypt2") set crypt = Server.CreateObject("Chilkat.Crypt2") 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.HashAlgorithm = "sha-1" crypt.EncodingMode = "hex" crypt.MacAlgorithm = "hmac" success = crypt.SetMacKeyEncoded(key,"hex") mac = crypt.MacStringENC(strToSign) Response.Write "<pre>" & Server.HTMLEncode( "Computed: " & mac) & "</pre>" Response.Write "<pre>" & Server.HTMLEncode( "Expected: " & expectedResult) & "</pre>" %> </body> </html> |
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