mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-20 10:23:57 +00:00
83 lines
2.8 KiB
EmacsLisp
83 lines
2.8 KiB
EmacsLisp
;;; 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
|