BadVPN – Blame information for rev 1
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| 1 | office | 1 | /** |
| 2 | * \file des.h |
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| 3 | * |
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| 4 | * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine |
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| 5 | * |
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| 6 | * Copyright (C) 2009 Paul Bakker <polarssl_maintainer at polarssl dot org> |
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| 7 | * |
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| 8 | * All rights reserved. |
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| 9 | * |
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| 10 | * Redistribution and use in source and binary forms, with or without |
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| 11 | * modification, are permitted provided that the following conditions |
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| 12 | * are met: |
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| 13 | * |
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| 14 | * * Redistributions of source code must retain the above copyright |
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| 15 | * notice, this list of conditions and the following disclaimer. |
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| 16 | * * Redistributions in binary form must reproduce the above copyright |
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| 17 | * notice, this list of conditions and the following disclaimer in the |
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| 18 | * documentation and/or other materials provided with the distribution. |
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| 19 | * * Neither the names of PolarSSL or XySSL nor the names of its contributors |
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| 20 | * may be used to endorse or promote products derived from this software |
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| 21 | * without specific prior written permission. |
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| 22 | * |
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| 23 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| 24 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| 25 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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| 26 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| 27 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 28 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED |
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| 29 | * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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| 30 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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| 31 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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| 32 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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| 33 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 34 | */ |
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| 35 | |||
| 36 | #include "netif/ppp/ppp_opts.h" |
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| 37 | #if LWIP_INCLUDED_POLARSSL_DES |
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| 38 | |||
| 39 | #ifndef LWIP_INCLUDED_POLARSSL_DES_H |
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| 40 | #define LWIP_INCLUDED_POLARSSL_DES_H |
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| 41 | |||
| 42 | #define DES_ENCRYPT 1 |
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| 43 | #define DES_DECRYPT 0 |
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| 44 | |||
| 45 | /** |
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| 46 | * \brief DES context structure |
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| 47 | */ |
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| 48 | typedef struct |
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| 49 | { |
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| 50 | int mode; /*!< encrypt/decrypt */ |
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| 51 | unsigned long sk[32]; /*!< DES subkeys */ |
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| 52 | } |
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| 53 | des_context; |
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| 54 | |||
| 55 | #ifdef __cplusplus |
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| 56 | extern "C" { |
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| 57 | #endif |
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| 58 | |||
| 59 | /** |
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| 60 | * \brief DES key schedule (56-bit, encryption) |
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| 61 | * |
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| 62 | * \param ctx DES context to be initialized |
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| 63 | * \param key 8-byte secret key |
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| 64 | */ |
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| 65 | void des_setkey_enc( des_context *ctx, unsigned char key[8] ); |
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| 66 | |||
| 67 | /** |
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| 68 | * \brief DES key schedule (56-bit, decryption) |
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| 69 | * |
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| 70 | * \param ctx DES context to be initialized |
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| 71 | * \param key 8-byte secret key |
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| 72 | */ |
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| 73 | void des_setkey_dec( des_context *ctx, unsigned char key[8] ); |
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| 74 | |||
| 75 | /** |
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| 76 | * \brief DES-ECB block encryption/decryption |
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| 77 | * |
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| 78 | * \param ctx DES context |
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| 79 | * \param input 64-bit input block |
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| 80 | * \param output 64-bit output block |
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| 81 | */ |
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| 82 | void des_crypt_ecb( des_context *ctx, |
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| 83 | const unsigned char input[8], |
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| 84 | unsigned char output[8] ); |
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| 85 | |||
| 86 | #ifdef __cplusplus |
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| 87 | } |
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| 88 | #endif |
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| 89 | |||
| 90 | #endif /* LWIP_INCLUDED_POLARSSL_DES_H */ |
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| 91 | |||
| 92 | #endif /* LWIP_INCLUDED_POLARSSL_DES */ |