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51 lines
1.5 KiB
EmacsLisp
51 lines
1.5 KiB
EmacsLisp
;;; sasl-cram.el --- CRAM-MD5 module for the SASL client framework
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;; Copyright (C) 2000, 2007-2018 Free Software Foundation, Inc.
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;; Author: Daiki Ueno <ueno@unixuser.org>
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;; Kenichi OKADA <okada@opaopa.org>
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;; Keywords: SASL, CRAM-MD5
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;; Package: sasl
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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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(require 'sasl)
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(require 'hmac-md5)
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(defconst sasl-cram-md5-steps
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'(ignore ;no initial response
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sasl-cram-md5-response))
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(defun sasl-cram-md5-response (client step)
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(let ((passphrase
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(sasl-read-passphrase
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(format "CRAM-MD5 passphrase for %s: "
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(sasl-client-name client)))))
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(unwind-protect
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(concat (sasl-client-name client) " "
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(encode-hex-string
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(hmac-md5 (sasl-step-data step) passphrase)))
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(fillarray passphrase 0))))
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(put 'sasl-cram 'sasl-mechanism
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(sasl-make-mechanism "CRAM-MD5" sasl-cram-md5-steps))
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(provide 'sasl-cram)
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;;; sasl-cram.el ends here
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