HMAC MD5 to Match RFC 2022 Test Vectors

Demonstrates using Chilkat in Ruby to computer HMAC MD5 message authentication codes to match the test vectors given by RFC 2202.

Download Chilkat Ruby Library

require 'chilkat'

crypt = Chilkat::CkCrypt2.new()

#  Any string argument automatically begins the 30-day trial.
success = crypt.UnlockComponent("30-day trial")
if (success != true)
    print "Crypt component unlock failed" + "\n"
    exit
end

#  The output will be Hex, so set the EncodingMode:
crypt.put_EncodingMode("hex")

#  Set the hash algorithm:
#  Choices are: md5, sha-1, sha256, sha384, sha512, md2, haval
crypt.put_HashAlgorithm("md5")

#  Set the HMAC key:
crypt.SetHmacKeyEncoded("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b","hex")
mac = crypt.hmacStringENC("Hi There")
print mac + "\n";

crypt.SetHmacKeyEncoded("Jefe","us-ascii")
mac = crypt.hmacStringENC("what do ya want for nothing?")
print mac + "\n";