| 1 | /* |
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| 2 | |
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| 3 | mpaux.h |
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| 4 | |
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| 5 | Author: Tatu Ylonen <ylo@cs.hut.fi> |
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| 6 | |
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| 7 | Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
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| 8 | All rights reserved |
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| 9 | |
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| 10 | Created: Sun Jul 16 04:29:30 1995 ylo |
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| 11 | |
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| 12 | This file contains various auxiliary functions related to multiple |
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| 13 | precision integers. |
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| 14 | |
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| 15 | */ |
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| 16 | |
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| 17 | /* |
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| 18 | * $Id: mpaux.h,v 1.1.1.2 1999-03-08 17:43:41 danw Exp $ |
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| 19 | * $Log: not supported by cvs2svn $ |
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| 20 | * Revision 1.1.1.1 1996/02/18 21:38:10 ylo |
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| 21 | * Imported ssh-1.2.13. |
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| 22 | * |
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| 23 | * Revision 1.1 1995/07/27 03:28:03 ylo |
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| 24 | * Auxiliary functions for manipulating mp-ints. |
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| 25 | * |
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| 26 | * $Endlog$ |
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| 27 | */ |
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| 28 | |
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| 29 | #ifndef MPAUX_H |
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| 30 | #define MPAUX_H |
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| 31 | |
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| 32 | /* Converts a multiple-precision integer into bytes to be stored in the buffer. |
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| 33 | The buffer will contain the value of the integer, msb first. */ |
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| 34 | void mp_linearize_msb_first(unsigned char *buf, unsigned int len, |
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| 35 | MP_INT *value); |
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| 36 | |
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| 37 | /* Extract a multiple-precision integer from buffer. The value is stored |
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| 38 | in the buffer msb first. */ |
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| 39 | void mp_unlinearize_msb_first(MP_INT *value, const unsigned char *buf, |
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| 40 | unsigned int len); |
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| 41 | |
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| 42 | /* Computes a 16-byte session id in the global variable session_id. |
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| 43 | The session id is computed by concatenating the linearized, msb |
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| 44 | first representations of host_key_n, session_key_n, and the cookie. */ |
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| 45 | void compute_session_id(unsigned char session_id[16], |
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| 46 | unsigned char cookie[8], |
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| 47 | unsigned int host_key_bits, |
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| 48 | MP_INT *host_key_n, |
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| 49 | unsigned int session_key_bits, |
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| 50 | MP_INT *session_key_n); |
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| 51 | |
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| 52 | #endif /* MPAUX_H */ |
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