hi, I hope this is the right group for this type of problem: I am using hash_hmac to provide me with a sha1 encoded hash string. The problem is as follows: $hash = hash_hmac('sha1', '030B6A05696E657400C54601C60001550187360603773500018707060373796E63000187340603687474703A2F2F7777772E73796E632E636F6D2F73796E630001C65901873A06032E2F636F6E7461637473000187070603436F6E74616374732044420001872E0603746578742F782D7663617264000101C6570187310603757365726E616D6500018732060370617373776F72640001010101', '1234'); Note: it is important the key to use during encoding id 1234 for this example. Result: eb38ffd597c6d1e01cd24a0e46dff426354510fe Using a hash calculator from slavasoft also yields this result, which indicate the encoding is fine. eb38ffd597c6d1e01cd24a0e46dff426354510fe However, Slavasoft's calculator has an option to provide the string as Text or Hex. Selecting "hex" yields this result: 9f9be99ea5bf5ba009af0a5c12021f420cb27652 ....and this is the string I need!!! So either hash_hmac function needs a way to let it know the string is of type hex....or the string itself needs to be converted. I have tried some conversions on the string but to no avail. Anyone have any thoughts? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php