Mercurial > dropbear

annotate LICENSE @ 994:5c5ade336926

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Prefer stronger algorithms in algorithm negotiation. Prefer diffie-hellman-group14-sha1 (2048 bit) over diffie-hellman-group1-sha1 (1024 bit). Due to meet-in-the-middle attacks the effective key length of three key 3DES is 112 bits. AES is stronger and faster then 3DES. Prefer to delay the start of compression until after authentication has completed. This avoids exposing compression code to attacks from unauthenticated users. (github pull request #9)
author Fedor Brunner <fedor.brunner@azet.sk>
date Fri, 23 Jan 2015 23:00:25 +0800
parents 0bb16232e7c4
children acf444bcb115
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1 Dropbear contains a number of components from different sources, hence there
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2 are a few licenses and authors involved. All licenses are fairly
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3 non-restrictive.
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6 The majority of code is written by Matt Johnston, under the license below.
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7
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8 Portions of the client-mode work are (c) 2004 Mihnea Stoenescu, under the
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9 same license:
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0bb16232e7c4 Make keepalive handling more robust, this should now match what OpenSSH does
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11 Copyright (c) 2002-2014 Matt Johnston
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12 Portions copyright (c) 2004 Mihnea Stoenescu
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13 All rights reserved.
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15 Permission is hereby granted, free of charge, to any person obtaining a copy
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16 of this software and associated documentation files (the "Software"), to deal
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17 in the Software without restriction, including without limitation the rights
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18 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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19 copies of the Software, and to permit persons to whom the Software is
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20 furnished to do so, subject to the following conditions:
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22 The above copyright notice and this permission notice shall be included in all
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23 copies or substantial portions of the Software.
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25 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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26 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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27 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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28 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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29 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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30 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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31 SOFTWARE.
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33 =====
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59d16db56e9f Simple text changes
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35 LibTomCrypt and LibTomMath are written by Tom St Denis, and are Public Domain.
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39 sshpty.c is taken from OpenSSH 3.5p1,
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40 Copyright (c) 1995 Tatu Ylonen <[email protected]>, Espoo, Finland
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41 All rights reserved
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42 "As far as I am concerned, the code I have written for this software
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43 can be used freely for any purpose. Any derived versions of this
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44 software must be clearly marked as such, and if the derived work is
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45 incompatible with the protocol description in the RFC file, it must be
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46 called by a name other than "ssh" or "Secure Shell". "
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48 =====
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50 loginrec.c
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51 loginrec.h
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52 atomicio.h
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53 atomicio.c
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54 and strlcat() (included in util.c) are from OpenSSH 3.6.1p2, and are licensed
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55 under the 2 point BSD license.
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57 loginrec is written primarily by Andre Lucas, atomicio.c by Theo de Raadt.
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59 strlcat() is (c) Todd C. Miller
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61 =====
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63 Import code in keyimport.c is modified from PuTTY's import.c, licensed as
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64 follows:
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66 PuTTY is copyright 1997-2003 Simon Tatham.
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68 Portions copyright Robert de Bath, Joris van Rantwijk, Delian
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69 Delchev, Andreas Schultz, Jeroen Massar, Wez Furlong, Nicolas Barry,
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70 Justin Bradford, and CORE SDI S.A.
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72 Permission is hereby granted, free of charge, to any person
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73 obtaining a copy of this software and associated documentation files
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74 (the "Software"), to deal in the Software without restriction,
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75 including without limitation the rights to use, copy, modify, merge,
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76 publish, distribute, sublicense, and/or sell copies of the Software,
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77 and to permit persons to whom the Software is furnished to do so,
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78 subject to the following conditions:
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80 The above copyright notice and this permission notice shall be
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81 included in all copies or substantial portions of the Software.
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83 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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84 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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85 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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86 NONINFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
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87 FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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88 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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89 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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91 =====
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92
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93 curve25519-donna:
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94
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95 /* Copyright 2008, Google Inc.
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96 * All rights reserved.
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97 *
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98 * Redistribution and use in source and binary forms, with or without
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99 * modification, are permitted provided that the following conditions are
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100 * met:
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101 *
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102 * * Redistributions of source code must retain the above copyright
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103 * notice, this list of conditions and the following disclaimer.
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104 * * Redistributions in binary form must reproduce the above
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105 * copyright notice, this list of conditions and the following disclaimer
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106 * in the documentation and/or other materials provided with the
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107 * distribution.
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108 * * Neither the name of Google Inc. nor the names of its
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109 * contributors may be used to endorse or promote products derived from
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110 * this software without specific prior written permission.
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111 *
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112 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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113 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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114 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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115 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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116 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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117 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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118 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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119 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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120 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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121 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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122 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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123 *
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124 * curve25519-donna: Curve25519 elliptic curve, public key function
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125 *
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126 * http://code.google.com/p/curve25519-donna/
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127 *
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128 * Adam Langley <[email protected]>
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129 *
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130 * Derived from public domain C code by Daniel J. Bernstein <[email protected]>
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131 *
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132 * More information about curve25519 can be found here
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133 * http://cr.yp.to/ecdh.html
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134 *
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135 * djb's sample implementation of curve25519 is written in a special assembly
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136 * language called qhasm and uses the floating point registers.
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137 *
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138 * This is, almost, a clean room reimplementation from the curve25519 paper. It
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139 * uses many of the tricks described therein. Only the crecip function is taken
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140 * from the sample implementation.
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141 */