Mercurial > dropbear
annotate libtommath/tommath_private.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 | 8bba51a55704 |
| children | f52919ffd3b1 |
| rev | line source |
|---|---|
| 1436 | 1 /* LibTomMath, multiple-precision integer library -- Tom St Denis |
| 2 * | |
| 3 * LibTomMath is a library that provides multiple-precision | |
| 4 * integer arithmetic as well as number theoretic functionality. | |
| 5 * | |
| 6 * The library was designed directly after the MPI library by | |
| 7 * Michael Fromberger but has been written from scratch with | |
| 8 * additional optimizations in place. | |
| 9 * | |
| 10 * The library is free for all purposes without any express | |
| 11 * guarantee it works. | |
| 12 * | |
| 13 * Tom St Denis, [email protected], http://math.libtomcrypt.com | |
| 14 */ | |
| 15 #ifndef TOMMATH_PRIV_H_ | |
| 16 #define TOMMATH_PRIV_H_ | |
| 17 | |
| 18 #include <tommath.h> | |
| 19 #include <ctype.h> | |
| 20 | |
|
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8bba51a55704
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Matt Johnston <matt@ucc.asn.au>
parents:
1436
diff
changeset
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21 #ifndef MIN |
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8bba51a55704
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Matt Johnston <matt@ucc.asn.au>
parents:
1436
diff
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22 #define MIN(x,y) (((x) < (y)) ? (x) : (y)) |
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8bba51a55704
Update to libtommath v1.0.1
Matt Johnston <matt@ucc.asn.au>
parents:
1436
diff
changeset
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23 #endif |
| 1436 | 24 |
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Update to libtommath v1.0.1
Matt Johnston <matt@ucc.asn.au>
parents:
1436
diff
changeset
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25 #ifndef MAX |
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8bba51a55704
Update to libtommath v1.0.1
Matt Johnston <matt@ucc.asn.au>
parents:
1436
diff
changeset
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26 #define MAX(x,y) (((x) > (y)) ? (x) : (y)) |
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8bba51a55704
Update to libtommath v1.0.1
Matt Johnston <matt@ucc.asn.au>
parents:
1436
diff
changeset
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27 #endif |
| 1436 | 28 |
| 29 #ifdef __cplusplus | |
| 30 extern "C" { | |
| 31 | |
| 32 /* C++ compilers don't like assigning void * to mp_digit * */ | |
| 33 #define OPT_CAST(x) (x *) | |
| 34 | |
| 35 #else | |
| 36 | |
| 37 /* C on the other hand doesn't care */ | |
| 38 #define OPT_CAST(x) | |
| 39 | |
| 40 #endif | |
| 41 | |
| 42 /* define heap macros */ | |
| 43 #ifndef XMALLOC | |
| 44 /* default to libc stuff */ | |
| 45 #define XMALLOC malloc | |
| 46 #define XFREE free | |
| 47 #define XREALLOC realloc | |
| 48 #define XCALLOC calloc | |
| 49 #else | |
| 50 /* prototypes for our heap functions */ | |
| 51 extern void *XMALLOC(size_t n); | |
| 52 extern void *XREALLOC(void *p, size_t n); | |
| 53 extern void *XCALLOC(size_t n, size_t s); | |
| 54 extern void XFREE(void *p); | |
| 55 #endif | |
| 56 | |
| 57 /* lowlevel functions, do not call! */ | |
| 58 int s_mp_add(mp_int *a, mp_int *b, mp_int *c); | |
| 59 int s_mp_sub(mp_int *a, mp_int *b, mp_int *c); | |
| 60 #define s_mp_mul(a, b, c) s_mp_mul_digs(a, b, c, (a)->used + (b)->used + 1) | |
| 61 int fast_s_mp_mul_digs(mp_int *a, mp_int *b, mp_int *c, int digs); | |
| 62 int s_mp_mul_digs(mp_int *a, mp_int *b, mp_int *c, int digs); | |
| 63 int fast_s_mp_mul_high_digs(mp_int *a, mp_int *b, mp_int *c, int digs); | |
| 64 int s_mp_mul_high_digs(mp_int *a, mp_int *b, mp_int *c, int digs); | |
| 65 int fast_s_mp_sqr(mp_int *a, mp_int *b); | |
| 66 int s_mp_sqr(mp_int *a, mp_int *b); | |
| 67 int mp_karatsuba_mul(mp_int *a, mp_int *b, mp_int *c); | |
| 68 int mp_toom_mul(mp_int *a, mp_int *b, mp_int *c); | |
| 69 int mp_karatsuba_sqr(mp_int *a, mp_int *b); | |
| 70 int mp_toom_sqr(mp_int *a, mp_int *b); | |
| 71 int fast_mp_invmod(mp_int *a, mp_int *b, mp_int *c); | |
| 72 int mp_invmod_slow (mp_int * a, mp_int * b, mp_int * c); | |
| 73 int fast_mp_montgomery_reduce(mp_int *x, mp_int *n, mp_digit rho); | |
| 74 int mp_exptmod_fast(mp_int *G, mp_int *X, mp_int *P, mp_int *Y, int redmode); | |
| 75 int s_mp_exptmod (mp_int * G, mp_int * X, mp_int * P, mp_int * Y, int redmode); | |
| 76 void bn_reverse(unsigned char *s, int len); | |
| 77 | |
| 78 extern const char *mp_s_rmap; | |
| 79 | |
| 80 /* Fancy macro to set an MPI from another type. | |
| 81 * There are several things assumed: | |
| 82 * x is the counter and unsigned | |
| 83 * a is the pointer to the MPI | |
| 84 * b is the original value that should be set in the MPI. | |
| 85 */ | |
| 86 #define MP_SET_XLONG(func_name, type) \ | |
| 87 int func_name (mp_int * a, type b) \ | |
| 88 { \ | |
| 89 unsigned int x; \ | |
| 90 int res; \ | |
| 91 \ | |
| 92 mp_zero (a); \ | |
| 93 \ | |
| 94 /* set four bits at a time */ \ | |
| 95 for (x = 0; x < (sizeof(type) * 2u); x++) { \ | |
| 96 /* shift the number up four bits */ \ | |
| 97 if ((res = mp_mul_2d (a, 4, a)) != MP_OKAY) { \ | |
| 98 return res; \ | |
| 99 } \ | |
| 100 \ | |
| 101 /* OR in the top four bits of the source */ \ | |
| 102 a->dp[0] |= (b >> ((sizeof(type) * 8u) - 4u)) & 15u; \ | |
| 103 \ | |
| 104 /* shift the source up to the next four bits */ \ | |
| 105 b <<= 4; \ | |
| 106 \ | |
| 107 /* ensure that digits are not clamped off */ \ | |
| 108 a->used += 1; \ | |
| 109 } \ | |
| 110 mp_clamp (a); \ | |
| 111 return MP_OKAY; \ | |
| 112 } | |
| 113 | |
| 114 #ifdef __cplusplus | |
| 115 } | |
| 116 #endif | |
| 117 | |
| 118 #endif | |
| 119 | |
| 120 | |
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1470
8bba51a55704
Update to libtommath v1.0.1
Matt Johnston <matt@ucc.asn.au>
parents:
1436
diff
changeset
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121 /* ref: $Format:%D$ */ |
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8bba51a55704
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Matt Johnston <matt@ucc.asn.au>
parents:
1436
diff
changeset
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122 /* git commit: $Format:%H$ */ |
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8bba51a55704
Update to libtommath v1.0.1
Matt Johnston <matt@ucc.asn.au>
parents:
1436
diff
changeset
|
123 /* commit time: $Format:%ai$ */ |