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- ;;; sasl-cram.el --- CRAM-MD5 module for the SASL client framework
- ;; Copyright (C) 2000, 2007-2012 Free Software Foundation, Inc.
- ;; Author: Daiki Ueno <ueno@unixuser.org>
- ;; Kenichi OKADA <okada@opaopa.org>
- ;; Keywords: SASL, CRAM-MD5
- ;; Package: sasl
- ;; 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:
- (require 'sasl)
- (require 'hmac-md5)
- (defconst sasl-cram-md5-steps
- '(ignore ;no initial response
- sasl-cram-md5-response))
- (defun sasl-cram-md5-response (client step)
- (let ((passphrase
- (sasl-read-passphrase
- (format "CRAM-MD5 passphrase for %s: "
- (sasl-client-name client)))))
- (unwind-protect
- (concat (sasl-client-name client) " "
- (encode-hex-string
- (hmac-md5 (sasl-step-data step) passphrase)))
- (fillarray passphrase 0))))
- (put 'sasl-cram 'sasl-mechanism
- (sasl-make-mechanism "CRAM-MD5" sasl-cram-md5-steps))
- (provide 'sasl-cram)
- ;;; sasl-cram.el ends here
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