openssl hmac using aes-256-cbc

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Published on 2010-04-09T22:06:13Z Indexed on 2010/04/09 22:53 UTC
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aes

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openssl

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hmac

Hello,

I am trying to take an AES HMAC of a file using the openssl command line program on Linux. I have been looking at the man pages but can't quite figure out how successfully make a HMAC. I can encrypt a file using the enc command with openssl however I can't seem to create a HMAC. The encryption looks like the following:

openssl enc -aes-256-cbc -in plaintext -out ciphertext

Any advice or tutorials would be wonderful

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