Xbase++

Demonstrates HMAC SHA256

See more Encryption Examples

Demonstrates HMAC-SHA256. Also demonstrates HMAC-SHA1 and HMAC-MD5. Xbase++

LOCAL oCrypt
LOCAL cSData

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

//  Demonstrates how to reproduce the following results found at
//  https://en.wikipedia.org/wiki/Hash-based_message_authentication_code

//  HMAC_SHA256("key", "The quick brown fox jumps over the lazy dog") = 0xf7bc83f430538424b13298e6aa6fb143ef4d59a14946175997479dbc2d1a3cd8
//  HMAC_MD5("key", "The quick brown fox jumps over the lazy dog")    = 0x80070713463e7749b90c2dc24911e275
//  HMAC_SHA1("key", "The quick brown fox jumps over the lazy dog")   = 0xde7c9b85b8b78aa6bc8a7a36f70a90701c9db4d9

oCrypt := CreateObject("Chilkat.Crypt2")

oCrypt:MacAlgorithm := "hmac"
oCrypt:EncodingMode := "hex"
oCrypt:SetMacKeyString("key")
cSData := "The quick brown fox jumps over the lazy dog"

oCrypt:HashAlgorithm := "SHA-256"
? "HMAC_SHA256: " + oCrypt:MacStringENC(cSData)

oCrypt:HashAlgorithm := "MD5"
? "HMAC_MD5: " + oCrypt:MacStringENC(cSData)

oCrypt:HashAlgorithm := "SHA-1"
? "HMAC_SHA1: " + oCrypt:MacStringENC(cSData)

//  The output is the same (ignore case)
//  HMAC_SHA256: F7BC83F430538424B13298E6AA6FB143EF4D59A14946175997479DBC2D1A3CD8
//  HMAC_MD5: 80070713463E7749B90C2DC24911E275
//  HMAC_SHA1: DE7C9B85B8B78AA6BC8A7A36F70A90701C9DB4D9

oCrypt:destroy()