bc511a64f6
Most of this change is to boilerplate commentary such as license URLs. This change was prompted by ftp://ftp.gnu.org's going-away party, planned for November. Change these FTP URLs to https://ftp.gnu.org instead. Make similar changes for URLs to other organizations moving away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and fsf.org when this works, as this will further help defend against man-in-the-middle attacks (for this part I omitted the MS-DOS and MS-Windows sources and the test tarballs to keep the workload down). HTTPS is not fully working to lists.gnu.org so I left those URLs alone for now.
82 lines
2.8 KiB
EmacsLisp
82 lines
2.8 KiB
EmacsLisp
;;; hmac-md5.el --- Compute HMAC-MD5.
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;; Copyright (C) 1999, 2001, 2007-2017 Free Software Foundation, Inc.
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;; Author: Shuhei KOBAYASHI <shuhei@aqua.ocn.ne.jp>
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;; Keywords: HMAC, RFC2104, HMAC-MD5, MD5, KEYED-MD5, CRAM-MD5
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Test cases from RFC 2202, "Test Cases for HMAC-MD5 and HMAC-SHA-1".
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;;
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;; (encode-hex-string (hmac-md5 "Hi There" (make-string 16 ?\x0b)))
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;; => "9294727a3638bb1c13f48ef8158bfc9d"
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;;
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;; (encode-hex-string (hmac-md5 "what do ya want for nothing?" "Jefe"))
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;; => "750c783e6ab0b503eaa86e310a5db738"
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;;
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;; (encode-hex-string (hmac-md5 (make-string 50 ?\xdd) (make-string 16 ?\xaa)))
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;; => "56be34521d144c88dbb8c733f0e8b3f6"
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;;
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;; (encode-hex-string
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;; (hmac-md5
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;; (make-string 50 ?\xcd)
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;; (decode-hex-string "0102030405060708090a0b0c0d0e0f10111213141516171819")))
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;; => "697eaf0aca3a3aea3a75164746ffaa79"
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;;
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;; (encode-hex-string
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;; (hmac-md5 "Test With Truncation" (make-string 16 ?\x0c)))
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;; => "56461ef2342edc00f9bab995690efd4c"
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;;
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;; (encode-hex-string
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;; (hmac-md5-96 "Test With Truncation" (make-string 16 ?\x0c)))
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;; => "56461ef2342edc00f9bab995"
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;;
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;; (encode-hex-string
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;; (hmac-md5
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;; "Test Using Larger Than Block-Size Key - Hash Key First"
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;; (make-string 80 ?\xaa)))
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;; => "6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd"
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;;
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;; (encode-hex-string
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;; (hmac-md5
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;; "Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data"
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;; (make-string 80 ?\xaa)))
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;; => "6f630fad67cda0ee1fb1f562db3aa53e"
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;;; Code:
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(eval-when-compile (require 'hmac-def))
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(require 'hex-util) ; (decode-hex-string STRING)
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(require 'md5) ; expects (md5 STRING)
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(defun md5-binary (string)
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"Return the MD5 of STRING in binary form."
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(if (condition-case nil
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;; `md5' of v21 takes 4th arg CODING (and 5th arg NOERROR).
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(md5 "" nil nil 'binary) ; => "d41d8cd98f00b204e9800998ecf8427e"
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(wrong-number-of-arguments nil))
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(decode-hex-string (md5 string nil nil 'binary))
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(decode-hex-string (md5 string))))
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(define-hmac-function hmac-md5 md5-binary 64 16) ; => (hmac-md5 TEXT KEY)
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(define-hmac-function hmac-md5-96 md5-binary 64 16 96)
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(provide 'hmac-md5)
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;;; hmac-md5.el ends here
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