BadVPN – Blame information for rev 1
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| 1 | office | 1 | /** |
| 2 | * \file arc4.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_ARC4 |
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| 38 | |||
| 39 | #ifndef LWIP_INCLUDED_POLARSSL_ARC4_H |
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| 40 | #define LWIP_INCLUDED_POLARSSL_ARC4_H |
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| 41 | |||
| 42 | /** |
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| 43 | * \brief ARC4 context structure |
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| 44 | */ |
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| 45 | typedef struct |
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| 46 | { |
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| 47 | int x; /*!< permutation index */ |
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| 48 | int y; /*!< permutation index */ |
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| 49 | unsigned char m[256]; /*!< permutation table */ |
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| 50 | } |
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| 51 | arc4_context; |
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| 52 | |||
| 53 | #ifdef __cplusplus |
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| 54 | extern "C" { |
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| 55 | #endif |
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| 56 | |||
| 57 | /** |
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| 58 | * \brief ARC4 key schedule |
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| 59 | * |
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| 60 | * \param ctx ARC4 context to be initialized |
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| 61 | * \param key the secret key |
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| 62 | * \param keylen length of the key |
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| 63 | */ |
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| 64 | void arc4_setup( arc4_context *ctx, unsigned char *key, int keylen ); |
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| 65 | |||
| 66 | /** |
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| 67 | * \brief ARC4 cipher function |
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| 68 | * |
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| 69 | * \param ctx ARC4 context |
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| 70 | * \param buf buffer to be processed |
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| 71 | * \param buflen amount of data in buf |
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| 72 | */ |
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| 73 | void arc4_crypt( arc4_context *ctx, unsigned char *buf, int buflen ); |
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| 74 | |||
| 75 | #ifdef __cplusplus |
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| 76 | } |
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| 77 | #endif |
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| 78 | |||
| 79 | #endif /* LWIP_INCLUDED_POLARSSL_ARC4_H */ |
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| 80 | |||
| 81 | #endif /* LWIP_INCLUDED_POLARSSL_ARC4 */ |