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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,193 @@ | ||
| /* | ||
| * ecgen, tool for generating Elliptic curve domain parameters | ||
| * Copyright (C) 2024 J08nY | ||
| */ | ||
|
|
||
| #include "family.h" | ||
| #include "cm/cm_any.h" | ||
| #include "gen/seed.h" | ||
| #include "misc/config.h" | ||
| #include "util/random.h" | ||
|
|
||
| #define FAMILIES (FAMILY_KSS40 + 1) | ||
|
|
||
| static GEN nz_store[FAMILIES] = {0}; | ||
| static GEN pz_store[FAMILIES] = {0}; | ||
| static GEN rz_store[FAMILIES] = {0}; | ||
| static GEN tz_store[FAMILIES] = {0}; | ||
| static GEN D_store[FAMILIES] = {0}; | ||
|
|
||
| void family_init() { | ||
| pari_sp ltop = avma; | ||
| nz_store[FAMILY_BN] = gclone(closure_evalgen(compile_str("(z) -> z"))); | ||
| pz_store[FAMILY_BN] = gclone(closure_evalgen( | ||
| compile_str("(z) -> 36*z^4 + 36*z^3 + 24*z^2 + 6*z + 1"))); | ||
| rz_store[FAMILY_BN] = gclone(closure_evalgen( | ||
| compile_str("(z) -> 36*z^4 + 36*z^3 + 18*z^2 + 6*z + 1"))); | ||
| tz_store[FAMILY_BN] = | ||
| gclone(closure_evalgen(compile_str("(z) -> 6*z + 1"))); | ||
| D_store[FAMILY_BN] = gclone(stoi(-3)); | ||
|
|
||
| nz_store[FAMILY_BLS12] = gclone(closure_evalgen(compile_str("(z) -> z"))); | ||
| pz_store[FAMILY_BLS12] = gclone(closure_evalgen( | ||
| compile_str("(z) -> (z - 1)^2 * (z^4 - z^2 + 1)/3 + z"))); | ||
| rz_store[FAMILY_BLS12] = | ||
| gclone(closure_evalgen(compile_str("(z) -> z^4 - z^2 + 1"))); | ||
| tz_store[FAMILY_BLS12] = | ||
| gclone(closure_evalgen(compile_str("(z) -> z + 1"))); | ||
| D_store[FAMILY_BLS12] = gclone(stoi(-3)); | ||
|
|
||
| nz_store[FAMILY_BLS24] = gclone(closure_evalgen(compile_str("(z) -> z"))); | ||
| pz_store[FAMILY_BLS24] = gclone(closure_evalgen( | ||
| compile_str("(z) -> (z - 1)^2 * (z^8 - z^4 + 1)/3 + z"))); | ||
| rz_store[FAMILY_BLS24] = | ||
| gclone(closure_evalgen(compile_str("(z) -> z^8 - z^4 + 1"))); | ||
| tz_store[FAMILY_BLS24] = | ||
| gclone(closure_evalgen(compile_str("(z) -> z + 1"))); | ||
| D_store[FAMILY_BLS24] = gclone(stoi(-3)); | ||
|
|
||
| //TODO: This does not work... | ||
| nz_store[FAMILY_KSS16] = | ||
| gclone(closure_evalgen(compile_str("(z) -> 70*z + 25"))); | ||
| pz_store[FAMILY_KSS16] = gclone(closure_evalgen( | ||
| compile_str("(z) -> (z^10 + 2*z^9 + 5*z^8 + 48*z^6 + 152*z^5 + 240*z^4 " | ||
| "+ 625*z^2 + 2398*z + 3125)/980"))); | ||
| rz_store[FAMILY_KSS16] = gclone( | ||
| closure_evalgen(compile_str("(z) -> (z^8 + 48*z^4 + 625)/61250"))); | ||
| tz_store[FAMILY_KSS16] = | ||
| gclone(closure_evalgen(compile_str("(z) -> (2*z^5 + 41*z + 35)/35"))); | ||
| D_store[FAMILY_KSS16] = gclone(stoi(-1)); | ||
|
|
||
| avma = ltop; | ||
| } | ||
|
|
||
| static seed_t *family_new_seed() { | ||
| seed_t *result = seed_new(); | ||
| result->type = SEED_FAMILY; | ||
| return result; | ||
| } | ||
|
|
||
| GENERATOR(family_gen_seed_random) { | ||
| curve->seed = family_new_seed(); | ||
| curve->seed->family.z = random_int(cfg->bits); | ||
| return 1; | ||
| } | ||
|
|
||
| GENERATOR(family_gen_seed_input) { | ||
| pari_sp ltop = avma; | ||
| GEN inp = input_int("z:", cfg->bits); | ||
| if (gequalm1(inp)) { | ||
| avma = ltop; | ||
| return 0; | ||
| } else if (equalii(inp, gen_m2)) { | ||
| avma = ltop; | ||
| return INT_MIN; | ||
| } | ||
| curve->seed = family_new_seed(); | ||
| curve->seed->family.z = inp; | ||
| return 1; | ||
| } | ||
|
|
||
| GENERATOR(family_gen_field) { | ||
| pari_sp ltop = avma; | ||
| GEN n = closure_callgen1(nz_store[cfg->family], curve->seed->family.z); | ||
| GEN pz = closure_callgen1(pz_store[cfg->family], n); | ||
| if (typ(pz) != t_INT || !isprime(pz)) { | ||
| avma = ltop; | ||
| return -1; | ||
| } | ||
| printf("p"); | ||
| GEN rz = closure_callgen1(rz_store[cfg->family], n); | ||
| if (typ(rz) != t_INT || !isprime(rz)) { | ||
| avma = ltop; | ||
| return -1; | ||
| } | ||
| printf("r"); | ||
| curve->field = gerepilecopy(ltop, pz); | ||
| return 1; | ||
| } | ||
|
|
||
| static GEN b = NULL; | ||
| static curve_t *b_curve = NULL; | ||
|
|
||
| GENERATOR(family_gen_equation_iter) { | ||
| curve->a = gmodulo(gen_0, curve->field); | ||
|
|
||
| pari_sp ltop = avma; | ||
| if (!b) { | ||
| b = gclone(gen_1); | ||
| curve->b = gmodulo(gen_1, curve->field); | ||
| b_curve = curve; | ||
| return 1; | ||
| } else { | ||
| if (curve == b_curve) { | ||
| GEN bn = addii(b, gen_1); | ||
| gunclone(b); | ||
| b = gclone(bn); | ||
| curve->b = gerepilecopy(ltop, gmodulo(bn, curve->field)); | ||
| return 1; | ||
| } else { | ||
| // dont use b, regenerate it, | ||
| gunclone(b); | ||
| b = gclone(gen_1); | ||
| curve->b = gerepilecopy(ltop, gmodulo(gen_1, curve->field)); | ||
| b_curve = curve; | ||
| return 1; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| GENERATOR(family_gen_equation_cm) { | ||
| GEN n = closure_callgen1(nz_store[cfg->family], curve->seed->family.z); | ||
| GEN rz = closure_callgen1(rz_store[cfg->family], n); | ||
| GEN D = D_store[cfg->family]; | ||
| GEN e = cm_construct_curve_subgroup(rz, D, curve->field); | ||
| if (e) { | ||
| curve->a = ell_get_a4(e); | ||
| curve->b = ell_get_a6(e); | ||
| return 1; | ||
| } | ||
| return -3; | ||
| } | ||
|
|
||
| GENERATOR(family_gen_order) { | ||
| pari_sp ltop = avma; | ||
| GEN n = closure_callgen1(nz_store[cfg->family], curve->seed->family.z); | ||
| GEN rz = closure_callgen1(rz_store[cfg->family], n); | ||
| GEN ord = ellff_get_card(curve->curve); | ||
| if (dvdii(ord, rz)) { | ||
| if (isclone(ord)) { | ||
| curve->order = gerepilecopy(ltop, ord); | ||
| } else { | ||
| avma = ltop; | ||
| curve->order = ord; | ||
| } | ||
| return 1; | ||
| } else { | ||
| avma = ltop; | ||
| return -2; | ||
| } | ||
| } | ||
|
|
||
| void family_quit() { | ||
| for (int i = 0; i < FAMILIES; i++) { | ||
| if (nz_store[i]) { | ||
| gunclone(nz_store[i]); | ||
| } | ||
| if (pz_store[i]) { | ||
| gunclone(pz_store[i]); | ||
| } | ||
| if (rz_store[i]) { | ||
| gunclone(rz_store[i]); | ||
| } | ||
| if (tz_store[i]) { | ||
| gunclone(tz_store[i]); | ||
| } | ||
| if (D_store[i]) { | ||
| gunclone(D_store[i]); | ||
| } | ||
| } | ||
| if (b) { | ||
| gunclone(b); | ||
| } | ||
| } |
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