| 1 | # ---?--- |
| 2 | # |
| 3 | # $Id$ |
| 4 | # |
| 5 | # Abstract groups |
| 6 | # |
| 7 | # (c) 2001 Straylight/Edgeware |
| 8 | # |
| 9 | |
| 10 | #----- Licensing notice ----------------------------------------------------- |
| 11 | # |
| 12 | # This file is part of the Perl interface to Catacomb. |
| 13 | # |
| 14 | # Catacomb/Perl is free software; you can redistribute it and/or modify |
| 15 | # it under the terms of the GNU General Public License as published by |
| 16 | # the Free Software Foundation; either version 2 of the License, or |
| 17 | # (at your option) any later version. |
| 18 | # |
| 19 | # Catacomb/Perl is distributed in the hope that it will be useful, |
| 20 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | # GNU General Public License for more details. |
| 23 | # |
| 24 | # You should have received a copy of the GNU General Public License |
| 25 | # along with Catacomb/Perl; if not, write to the Free Software Foundation, |
| 26 | # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 27 | |
| 28 | MODULE = Catacomb PACKAGE = Catacomb::Group PREFIX = group_ |
| 29 | |
| 30 | Group * |
| 31 | prime(me, p, g, q) |
| 32 | SV *me |
| 33 | mp *p |
| 34 | mp *g |
| 35 | mp *q |
| 36 | PREINIT: |
| 37 | gprime_param gp; |
| 38 | CODE: |
| 39 | gp.p = p; |
| 40 | gp.q = q; |
| 41 | gp.g = g; |
| 42 | RETVAL = group_prime(&gp); |
| 43 | OUTPUT: |
| 44 | RETVAL |
| 45 | |
| 46 | Group * |
| 47 | binary(me, p, g, q) |
| 48 | SV *me |
| 49 | mp *p |
| 50 | mp *g |
| 51 | mp *q |
| 52 | PREINIT: |
| 53 | gbin_param gb; |
| 54 | CODE: |
| 55 | gb.p = p; |
| 56 | gb.q = q; |
| 57 | gb.g = g; |
| 58 | RETVAL = group_binary(&gb); |
| 59 | OUTPUT: |
| 60 | RETVAL |
| 61 | |
| 62 | Group * |
| 63 | ec(me, c, g, r, h) |
| 64 | SV *me |
| 65 | EC_Curve *c |
| 66 | ec *g |
| 67 | mp *r |
| 68 | mp *h |
| 69 | PREINIT: |
| 70 | ec_info ei; |
| 71 | CODE: |
| 72 | ei.c = copy_curve(c); |
| 73 | EC_CREATE(&ei.g); |
| 74 | EC_COPY(&ei.g, g); |
| 75 | ei.r = MP_COPY(r); |
| 76 | ei.h = MP_COPY(h); |
| 77 | RETVAL = group_ec(&ei); |
| 78 | OUTPUT: |
| 79 | RETVAL |
| 80 | |
| 81 | Group * |
| 82 | byname(me, n) |
| 83 | SV *me |
| 84 | char *n |
| 85 | PREINIT: |
| 86 | const char *e; |
| 87 | CODE: |
| 88 | if ((e = group_fromstring(n, &RETVAL)) != 0) |
| 89 | croak("bad group name: `%s'", e); |
| 90 | OUTPUT: |
| 91 | RETVAL |
| 92 | |
| 93 | SV * |
| 94 | DESTROY(g) |
| 95 | Group *g |
| 96 | CODE: |
| 97 | G_DESTROYGROUP(g); |
| 98 | XSRETURN_YES; |
| 99 | |
| 100 | ge * |
| 101 | _i(g) |
| 102 | Group *g |
| 103 | CODE: |
| 104 | RETVAL = G_CREATE(g); |
| 105 | G_COPY(g, RETVAL, g->i); |
| 106 | OUTPUT: |
| 107 | RETVAL |
| 108 | |
| 109 | ge * |
| 110 | _g(g) |
| 111 | Group *g |
| 112 | CODE: |
| 113 | RETVAL = G_CREATE(g); |
| 114 | G_COPY(g, RETVAL, g->g); |
| 115 | OUTPUT: |
| 116 | RETVAL |
| 117 | |
| 118 | mp * |
| 119 | r(g) |
| 120 | Group *g |
| 121 | CODE: |
| 122 | RETVAL = MP_COPY(g->r); |
| 123 | OUTPUT: |
| 124 | RETVAL |
| 125 | |
| 126 | mp * |
| 127 | h(g) |
| 128 | Group *g |
| 129 | CODE: |
| 130 | RETVAL = MP_COPY(g->h); |
| 131 | OUTPUT: |
| 132 | RETVAL |
| 133 | |
| 134 | bool |
| 135 | group_samep(g, h) |
| 136 | Group *g |
| 137 | Group *h |
| 138 | |
| 139 | void |
| 140 | check(g, rng = &rand_global) |
| 141 | Group *g |
| 142 | grand *rng |
| 143 | PREINIT: |
| 144 | const char *e; |
| 145 | PPCODE: |
| 146 | e = G_CHECK(g, rng); |
| 147 | if (!e) |
| 148 | XSRETURN_YES; |
| 149 | XPUSHs(&PL_sv_undef); |
| 150 | if (GIMME_V == G_ARRAY) |
| 151 | XPUSHs(sv_2mortal(newSVpv(e, 0))); |
| 152 | |
| 153 | SV * |
| 154 | _checkelt(g, x) |
| 155 | Group *g |
| 156 | ge *x |
| 157 | CODE: |
| 158 | if (group_check(g, x)) |
| 159 | XSRETURN_UNDEF; |
| 160 | else |
| 161 | XSRETURN_YES; |
| 162 | |
| 163 | SV * |
| 164 | _destroyelement(g, x) |
| 165 | Group *g |
| 166 | ge *x |
| 167 | CODE: |
| 168 | G_DESTROY(g, x); |
| 169 | XSRETURN_YES; |
| 170 | |
| 171 | bool |
| 172 | _identp(g, x) |
| 173 | Group *g |
| 174 | ge *x |
| 175 | CODE: |
| 176 | RETVAL = G_IDENTP(g, x); |
| 177 | OUTPUT: |
| 178 | RETVAL |
| 179 | |
| 180 | SV * |
| 181 | get(g) |
| 182 | Group *g |
| 183 | CODE: |
| 184 | RETVAL = info_group(g); |
| 185 | OUTPUT: |
| 186 | RETVAL |
| 187 | |
| 188 | bool |
| 189 | _eq(g, x, y) |
| 190 | Group *g |
| 191 | ge *x |
| 192 | ge *y |
| 193 | CODE: |
| 194 | RETVAL = G_EQ(g, x, y); |
| 195 | OUTPUT: |
| 196 | RETVAL |
| 197 | |
| 198 | ge * |
| 199 | _mul(g, x, y) |
| 200 | Group *g |
| 201 | ge *x |
| 202 | ge *y |
| 203 | CODE: |
| 204 | RETVAL = G_CREATE(g); |
| 205 | G_MUL(g, RETVAL, x, y); |
| 206 | OUTPUT: |
| 207 | RETVAL |
| 208 | |
| 209 | ge * |
| 210 | _sqr(g, x) |
| 211 | Group *g |
| 212 | ge *x |
| 213 | CODE: |
| 214 | RETVAL = G_CREATE(g); |
| 215 | G_SQR(g, RETVAL, x); |
| 216 | OUTPUT: |
| 217 | RETVAL |
| 218 | |
| 219 | ge * |
| 220 | _inv(g, x) |
| 221 | Group *g |
| 222 | ge *x |
| 223 | CODE: |
| 224 | RETVAL = G_CREATE(g); |
| 225 | G_INV(g, RETVAL, x); |
| 226 | OUTPUT: |
| 227 | RETVAL |
| 228 | |
| 229 | ge * |
| 230 | _div(g, x, y) |
| 231 | Group *g |
| 232 | ge *x |
| 233 | ge *y |
| 234 | CODE: |
| 235 | RETVAL = G_CREATE(g); |
| 236 | G_DIV(g, RETVAL, x, y); |
| 237 | OUTPUT: |
| 238 | RETVAL |
| 239 | |
| 240 | ge * |
| 241 | _exp(g, x, n) |
| 242 | Group *g |
| 243 | ge *x |
| 244 | mp *n |
| 245 | CODE: |
| 246 | RETVAL = G_CREATE(g); |
| 247 | G_EXP(g, RETVAL, x, n); |
| 248 | OUTPUT: |
| 249 | RETVAL |
| 250 | |
| 251 | ge * |
| 252 | _mexp(g, ...) |
| 253 | Group *g |
| 254 | PREINIT: |
| 255 | group_expfactor *v; |
| 256 | size_t i, j, n; |
| 257 | CODE: |
| 258 | if (items < 3 || !(items & 1)) { |
| 259 | croak("Usage: Catacomb::Group::mexp" |
| 260 | "(g, x_0, n_0, x_1, n_1, ..."); |
| 261 | } |
| 262 | n = (items - 1)/2; |
| 263 | v = xmalloc(n * sizeof(group_expfactor)); |
| 264 | for (i = 1, j = 0; i < items; i += 2, j++) { |
| 265 | v[j].base = ptrfromsv(ST(i), "Catacomb::Group::Element", "p_i"); |
| 266 | v[j].exp = mp_fromsv(ST(i + 1), "x_i", 0, 0); |
| 267 | } |
| 268 | RETVAL = G_CREATE(g); |
| 269 | G_MEXP(g, RETVAL, v, n); |
| 270 | xfree(v); |
| 271 | OUTPUT: |
| 272 | RETVAL |
| 273 | |
| 274 | mp * |
| 275 | _toint(g, x) |
| 276 | Group *g |
| 277 | ge *x |
| 278 | CODE: |
| 279 | RETVAL = G_TOINT(g, MP_NEW, x); |
| 280 | OUTPUT: |
| 281 | RETVAL |
| 282 | |
| 283 | ge * |
| 284 | _fromint(g, x) |
| 285 | Group *g |
| 286 | mp *x |
| 287 | CODE: |
| 288 | RETVAL = G_CREATE(g); |
| 289 | if (G_FROMINT(g, RETVAL, x)) { |
| 290 | G_DESTROY(g, RETVAL); |
| 291 | RETVAL = 0; |
| 292 | } |
| 293 | OUTPUT: |
| 294 | RETVAL |
| 295 | |
| 296 | ec * |
| 297 | _toec(g, x) |
| 298 | Group *g |
| 299 | ge *x |
| 300 | CODE: |
| 301 | RETVAL = CREATE(ec); |
| 302 | EC_CREATE(RETVAL); |
| 303 | if (G_TOEC(g, RETVAL, x)) { |
| 304 | DESTROY(RETVAL); |
| 305 | RETVAL = 0; |
| 306 | } |
| 307 | OUTPUT: |
| 308 | RETVAL |
| 309 | |
| 310 | ge * |
| 311 | _fromec(g, x) |
| 312 | Group *g |
| 313 | ec *x |
| 314 | CODE: |
| 315 | RETVAL = G_CREATE(g); |
| 316 | if (G_FROMEC(g, RETVAL, x)) { |
| 317 | G_DESTROY(g, RETVAL); |
| 318 | RETVAL = 0; |
| 319 | } |
| 320 | OUTPUT: |
| 321 | RETVAL |
| 322 | |
| 323 | SV * |
| 324 | _putbuf(g, x) |
| 325 | Group *g |
| 326 | ge *x |
| 327 | PREINIT: |
| 328 | buf b; |
| 329 | size_t n = g->noctets + 8; /* Guess */ |
| 330 | CODE: |
| 331 | RETVAL = NEWSV(0, n); |
| 332 | buf_init(&b, SvPVX(RETVAL), n); |
| 333 | if (G_TOBUF(g, &b, x)) |
| 334 | croak("unexpected failure in Catacomb::Group::putbuf"); |
| 335 | SvCUR_set(RETVAL, BLEN(&b)); |
| 336 | OUTPUT: |
| 337 | RETVAL |
| 338 | |
| 339 | void |
| 340 | _getbuf(g, s) |
| 341 | Group *g |
| 342 | SV *s |
| 343 | PREINIT: |
| 344 | ge *x; |
| 345 | buf b; |
| 346 | char *q; |
| 347 | STRLEN n; |
| 348 | CODE: |
| 349 | q = SvPV(s, n); |
| 350 | buf_init(&b, q, n); |
| 351 | x = G_CREATE(g); |
| 352 | if (G_FROMBUF(g, &b, x)) |
| 353 | G_DESTROY(g, x); |
| 354 | else { |
| 355 | XPUSHs(RET(x, "Catacomb::Group::Element")); |
| 356 | if (GIMME_V == G_ARRAY) |
| 357 | XPUSHs(sv_2mortal(newSVpvn((char *)BCUR(&b), BLEFT(&b)))); |
| 358 | } |
| 359 | |
| 360 | SV * |
| 361 | _putraw(g, x) |
| 362 | Group *g |
| 363 | ge *x |
| 364 | PREINIT: |
| 365 | buf b; |
| 366 | size_t n = g->noctets; |
| 367 | CODE: |
| 368 | RETVAL = NEWSV(0, n); |
| 369 | buf_init(&b, SvPVX(RETVAL), n); |
| 370 | if (G_TORAW(g, &b, x)) |
| 371 | croak("unexpected failure in Catacomb::Group::putraw"); |
| 372 | SvCUR_set(RETVAL, BLEN(&b)); |
| 373 | OUTPUT: |
| 374 | RETVAL |
| 375 | |
| 376 | void |
| 377 | _getraw(g, s) |
| 378 | Group *g |
| 379 | SV *s |
| 380 | PREINIT: |
| 381 | ge *x; |
| 382 | buf b; |
| 383 | char *q; |
| 384 | STRLEN n; |
| 385 | CODE: |
| 386 | q = SvPV(s, n); |
| 387 | buf_init(&b, q, n); |
| 388 | x = G_CREATE(g); |
| 389 | if (G_FROMRAW(g, &b, x)) |
| 390 | G_DESTROY(g, x); |
| 391 | else { |
| 392 | XPUSHs(RET(x, "Catacomb::Group::Element")); |
| 393 | if (GIMME_V == G_ARRAY) |
| 394 | XPUSHs(sv_2mortal(newSVpvn((char *)BCUR(&b), BLEFT(&b)))); |
| 395 | } |
| 396 | |
| 397 | SV * |
| 398 | _tostring(g, x) |
| 399 | Group *g |
| 400 | ge *x |
| 401 | CODE: |
| 402 | RETVAL = NEWSV(0, 64); |
| 403 | if (group_writesv(g, x, RETVAL)) { |
| 404 | SvREFCNT_dec(RETVAL); |
| 405 | XSRETURN_UNDEF; |
| 406 | } |
| 407 | OUTPUT: |
| 408 | RETVAL |
| 409 | |
| 410 | void |
| 411 | _fromstring(g, s) |
| 412 | Group *g |
| 413 | SV *s |
| 414 | PREINIT: |
| 415 | mptext_stringctx ms; |
| 416 | STRLEN len; |
| 417 | ge *x; |
| 418 | PPCODE: |
| 419 | ms.buf = SvPV(s, len); |
| 420 | ms.lim = ms.buf + len; |
| 421 | x = G_CREATE(g); |
| 422 | if (G_READ(g, x, &mptext_stringops, &ms)) |
| 423 | G_DESTROY(g, x); |
| 424 | else { |
| 425 | XPUSHs(RET(x, "Catacomb::Group::Element")); |
| 426 | if (GIMME_V == G_ARRAY) |
| 427 | XPUSHs(sv_2mortal(newSVpvn(ms.buf, ms.lim - ms.buf))); |
| 428 | } |