apex code - Salesforce creating incorrect HMAC SHA1 value -

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i'm trying generate hmac value within salesforce using crypto generatemac function, result doesn't match other utilities.

for example, i'm trying hash value hash me using key ac67ad3b8771bf63d4fa9582845a18f921514f36. i'm expecting result 66fe419859ac42ad88354dfa52f2196a26d767e1, it's 7d1f56c728dfefdcb9edb72b7c0c8df2acf1cae9.

my apex code is:

blob mac = crypto.generatemac('hmacsha1', blob.valueof('hash me'),     blob.valueof('33a1211c0ee01511ccba1e456bb95503'));  string hasedvalue = encodingutil.converttohex(mac);

i'm guessing issue related converting to/from binary or maybe related case, cannot match expected result.

my expected result based on result http://hash.online-convert.com/sha1-generator , couple other online hmac calculators.

the other option base 64 encode:

encodingutil.base64encode(mac);

i'd surprised if generatemac + converttohex aren't working you. they've worked me. i'm sure you've looked, in case i'd go on amazon web services example in documentation.


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