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- ;;; hmac-md5.el --- Compute HMAC-MD5.
- ;; Copyright (C) 1999, 2001, 2007-2012 Free Software Foundation, Inc.
- ;; Author: Shuhei KOBAYASHI <shuhei@aqua.ocn.ne.jp>
- ;; Keywords: HMAC, RFC2104, HMAC-MD5, MD5, KEYED-MD5, CRAM-MD5
- ;; This file is part of GNU Emacs.
- ;; GNU Emacs is free software: you can redistribute it and/or modify
- ;; it under the terms of the GNU General Public License as published by
- ;; the Free Software Foundation, either version 3 of the License, or
- ;; (at your option) any later version.
- ;; GNU Emacs is distributed in the hope that it will be useful,
- ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
- ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ;; GNU General Public License for more details.
- ;; You should have received a copy of the GNU General Public License
- ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
- ;;; Commentary:
- ;; Test cases from RFC 2202, "Test Cases for HMAC-MD5 and HMAC-SHA-1".
- ;;
- ;; (encode-hex-string (hmac-md5 "Hi There" (make-string 16 ?\x0b)))
- ;; => "9294727a3638bb1c13f48ef8158bfc9d"
- ;;
- ;; (encode-hex-string (hmac-md5 "what do ya want for nothing?" "Jefe"))
- ;; => "750c783e6ab0b503eaa86e310a5db738"
- ;;
- ;; (encode-hex-string (hmac-md5 (make-string 50 ?\xdd) (make-string 16 ?\xaa)))
- ;; => "56be34521d144c88dbb8c733f0e8b3f6"
- ;;
- ;; (encode-hex-string
- ;; (hmac-md5
- ;; (make-string 50 ?\xcd)
- ;; (decode-hex-string "0102030405060708090a0b0c0d0e0f10111213141516171819")))
- ;; => "697eaf0aca3a3aea3a75164746ffaa79"
- ;;
- ;; (encode-hex-string
- ;; (hmac-md5 "Test With Truncation" (make-string 16 ?\x0c)))
- ;; => "56461ef2342edc00f9bab995690efd4c"
- ;;
- ;; (encode-hex-string
- ;; (hmac-md5-96 "Test With Truncation" (make-string 16 ?\x0c)))
- ;; => "56461ef2342edc00f9bab995"
- ;;
- ;; (encode-hex-string
- ;; (hmac-md5
- ;; "Test Using Larger Than Block-Size Key - Hash Key First"
- ;; (make-string 80 ?\xaa)))
- ;; => "6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd"
- ;;
- ;; (encode-hex-string
- ;; (hmac-md5
- ;; "Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data"
- ;; (make-string 80 ?\xaa)))
- ;; => "6f630fad67cda0ee1fb1f562db3aa53e"
- ;;; Code:
- (eval-when-compile (require 'hmac-def))
- (require 'hex-util) ; (decode-hex-string STRING)
- (require 'md5) ; expects (md5 STRING)
- (defun md5-binary (string)
- "Return the MD5 of STRING in binary form."
- (if (condition-case nil
- ;; `md5' of v21 takes 4th arg CODING (and 5th arg NOERROR).
- (md5 "" nil nil 'binary) ; => "d41d8cd98f00b204e9800998ecf8427e"
- (wrong-number-of-arguments nil))
- (decode-hex-string (md5 string nil nil 'binary))
- (decode-hex-string (md5 string))))
- (define-hmac-function hmac-md5 md5-binary 64 16) ; => (hmac-md5 TEXT KEY)
- (define-hmac-function hmac-md5-96 md5-binary 64 16 96)
- (provide 'hmac-md5)
- ;;; hmac-md5.el ends here
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