Mercurial > dropbear
view libtommath/mtest/mpi.h @ 1653:76189c9ffea2
External Public-Key Authentication API (#72)
* Implemented dynamic loading of an external plug-in shared library to delegate public key authentication
* Moved conditional compilation of the plugin infrastructure into the configure.ac script to be able to add -ldl to dropbear build only when the flag is enabled
* Added tags file to the ignore list
* Updated API to have the constructor to return function pointers in the pliugin instance. Added support for passing user name to the checkpubkey function. Added options to the session returned by the plugin and have dropbear to parse and process them
* Added -rdynamic to the linker flags when EPKA is enabled
* Changed the API to pass a previously created session to the checkPubKey function (created during preauth)
* Added documentation to the API
* Added parameter addrstring to plugin creation function
* Modified the API to retrieve the auth options. Instead of having them as field of the EPKASession struct, they are stored internally (plugin-dependent) in the plugin/session and retrieved through a pointer to a function (in the session)
* Changed option string to be a simple char * instead of unsigned char *
| author | fabriziobertocci <fabriziobertocci@gmail.com> |
|---|---|
| date | Wed, 15 May 2019 09:43:57 -0400 |
| parents | 60fc6476e044 |
| children |
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/* mpi.h by Michael J. Fromberger <[email protected]> Copyright (C) 1998 Michael J. Fromberger, All Rights Reserved Arbitrary precision integer arithmetic library $Id$ */ #ifndef _H_MPI_ #define _H_MPI_ #include "mpi-config.h" #define MP_LT -1 #define MP_EQ 0 #define MP_GT 1 #if MP_DEBUG #undef MP_IOFUNC #define MP_IOFUNC 1 #endif #if MP_IOFUNC #include <stdio.h> #include <ctype.h> #endif #include <limits.h> #define MP_NEG 1 #define MP_ZPOS 0 /* Included for compatibility... */ #define NEG MP_NEG #define ZPOS MP_ZPOS #define MP_OKAY 0 /* no error, all is well */ #define MP_YES 0 /* yes (boolean result) */ #define MP_NO -1 /* no (boolean result) */ #define MP_MEM -2 /* out of memory */ #define MP_RANGE -3 /* argument out of range */ #define MP_BADARG -4 /* invalid parameter */ #define MP_UNDEF -5 /* answer is undefined */ #define MP_LAST_CODE MP_UNDEF #include "mpi-types.h" /* Included for compatibility... */ #define DIGIT_BIT MP_DIGIT_BIT #define DIGIT_MAX MP_DIGIT_MAX /* Macros for accessing the mp_int internals */ #define SIGN(MP) ((MP)->sign) #define USED(MP) ((MP)->used) #define ALLOC(MP) ((MP)->alloc) #define DIGITS(MP) ((MP)->dp) #define DIGIT(MP,N) (MP)->dp[(N)] #if MP_ARGCHK == 1 #define ARGCHK(X,Y) {if(!(X)){return (Y);}} #elif MP_ARGCHK == 2 #include <assert.h> #define ARGCHK(X,Y) assert(X) #else #define ARGCHK(X,Y) /* */ #endif /* This defines the maximum I/O base (minimum is 2) */ #define MAX_RADIX 64 typedef struct { mp_sign sign; /* sign of this quantity */ mp_size alloc; /* how many digits allocated */ mp_size used; /* how many digits used */ mp_digit *dp; /* the digits themselves */ } mp_int; /*------------------------------------------------------------------------*/ /* Default precision */ unsigned int mp_get_prec(void); void mp_set_prec(unsigned int prec); /*------------------------------------------------------------------------*/ /* Memory management */ mp_err mp_init(mp_int *mp); mp_err mp_init_array(mp_int mp[], int count); mp_err mp_init_size(mp_int *mp, mp_size prec); mp_err mp_init_copy(mp_int *mp, mp_int *from); mp_err mp_copy(mp_int *from, mp_int *to); void mp_exch(mp_int *mp1, mp_int *mp2); void mp_clear(mp_int *mp); void mp_clear_array(mp_int mp[], int count); void mp_zero(mp_int *mp); void mp_set(mp_int *mp, mp_digit d); mp_err mp_set_int(mp_int *mp, long z); mp_err mp_shrink(mp_int *a); /*------------------------------------------------------------------------*/ /* Single digit arithmetic */ mp_err mp_add_d(mp_int *a, mp_digit d, mp_int *b); mp_err mp_sub_d(mp_int *a, mp_digit d, mp_int *b); mp_err mp_mul_d(mp_int *a, mp_digit d, mp_int *b); mp_err mp_mul_2(mp_int *a, mp_int *c); mp_err mp_div_d(mp_int *a, mp_digit d, mp_int *q, mp_digit *r); mp_err mp_div_2(mp_int *a, mp_int *c); mp_err mp_expt_d(mp_int *a, mp_digit d, mp_int *c); /*------------------------------------------------------------------------*/ /* Sign manipulations */ mp_err mp_abs(mp_int *a, mp_int *b); mp_err mp_neg(mp_int *a, mp_int *b); /*------------------------------------------------------------------------*/ /* Full arithmetic */ mp_err mp_add(mp_int *a, mp_int *b, mp_int *c); mp_err mp_sub(mp_int *a, mp_int *b, mp_int *c); mp_err mp_mul(mp_int *a, mp_int *b, mp_int *c); mp_err mp_mul_2d(mp_int *a, mp_digit d, mp_int *c); #if MP_SQUARE mp_err mp_sqr(mp_int *a, mp_int *b); #else #define mp_sqr(a, b) mp_mul(a, a, b) #endif mp_err mp_div(mp_int *a, mp_int *b, mp_int *q, mp_int *r); mp_err mp_div_2d(mp_int *a, mp_digit d, mp_int *q, mp_int *r); mp_err mp_expt(mp_int *a, mp_int *b, mp_int *c); mp_err mp_2expt(mp_int *a, mp_digit k); mp_err mp_sqrt(mp_int *a, mp_int *b); /*------------------------------------------------------------------------*/ /* Modular arithmetic */ #if MP_MODARITH mp_err mp_mod(mp_int *a, mp_int *m, mp_int *c); mp_err mp_mod_d(mp_int *a, mp_digit d, mp_digit *c); mp_err mp_addmod(mp_int *a, mp_int *b, mp_int *m, mp_int *c); mp_err mp_submod(mp_int *a, mp_int *b, mp_int *m, mp_int *c); mp_err mp_mulmod(mp_int *a, mp_int *b, mp_int *m, mp_int *c); #if MP_SQUARE mp_err mp_sqrmod(mp_int *a, mp_int *m, mp_int *c); #else #define mp_sqrmod(a, m, c) mp_mulmod(a, a, m, c) #endif mp_err mp_exptmod(mp_int *a, mp_int *b, mp_int *m, mp_int *c); mp_err mp_exptmod_d(mp_int *a, mp_digit d, mp_int *m, mp_int *c); #endif /* MP_MODARITH */ /*------------------------------------------------------------------------*/ /* Comparisons */ int mp_cmp_z(mp_int *a); int mp_cmp_d(mp_int *a, mp_digit d); int mp_cmp(mp_int *a, mp_int *b); int mp_cmp_mag(mp_int *a, mp_int *b); int mp_cmp_int(mp_int *a, long z); int mp_isodd(mp_int *a); int mp_iseven(mp_int *a); /*------------------------------------------------------------------------*/ /* Number theoretic */ #if MP_NUMTH mp_err mp_gcd(mp_int *a, mp_int *b, mp_int *c); mp_err mp_lcm(mp_int *a, mp_int *b, mp_int *c); mp_err mp_xgcd(mp_int *a, mp_int *b, mp_int *g, mp_int *x, mp_int *y); mp_err mp_invmod(mp_int *a, mp_int *m, mp_int *c); #endif /* end MP_NUMTH */ /*------------------------------------------------------------------------*/ /* Input and output */ #if MP_IOFUNC void mp_print(mp_int *mp, FILE *ofp); #endif /* end MP_IOFUNC */ /*------------------------------------------------------------------------*/ /* Base conversion */ #define BITS 1 #define BYTES CHAR_BIT mp_err mp_read_signed_bin(mp_int *mp, unsigned char *str, int len); int mp_signed_bin_size(mp_int *mp); mp_err mp_to_signed_bin(mp_int *mp, unsigned char *str); mp_err mp_read_unsigned_bin(mp_int *mp, unsigned char *str, int len); int mp_unsigned_bin_size(mp_int *mp); mp_err mp_to_unsigned_bin(mp_int *mp, unsigned char *str); int mp_count_bits(mp_int *mp); #if MP_COMPAT_MACROS #define mp_read_raw(mp, str, len) mp_read_signed_bin((mp), (str), (len)) #define mp_raw_size(mp) mp_signed_bin_size(mp) #define mp_toraw(mp, str) mp_to_signed_bin((mp), (str)) #define mp_read_mag(mp, str, len) mp_read_unsigned_bin((mp), (str), (len)) #define mp_mag_size(mp) mp_unsigned_bin_size(mp) #define mp_tomag(mp, str) mp_to_unsigned_bin((mp), (str)) #endif mp_err mp_read_radix(mp_int *mp, unsigned char *str, int radix); int mp_radix_size(mp_int *mp, int radix); int mp_value_radix_size(int num, int qty, int radix); mp_err mp_toradix(mp_int *mp, char *str, int radix); int mp_char2value(char ch, int r); #define mp_tobinary(M, S) mp_toradix((M), (S), 2) #define mp_tooctal(M, S) mp_toradix((M), (S), 8) #define mp_todecimal(M, S) mp_toradix((M), (S), 10) #define mp_tohex(M, S) mp_toradix((M), (S), 16) /*------------------------------------------------------------------------*/ /* Error strings */ const char *mp_strerror(mp_err ec); #endif /* end _H_MPI_ */ /* $Source$ */ /* $Revision$ */ /* $Date$ */