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Searched refs:cofactor (Results 1 – 25 of 87) sorted by relevance

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/freebsd/crypto/libecc/scripts/
H A Dgen_curves_tests.sh45 …41 --order=6277101735386680763835789423176059013767194773182842284081 --cofactor=1 --add-test-vect…
49 …=26959946667150639794667015087019625940457807714424391721682722368061 --cofactor=1 --add-test-vect…
53 …210356248762697446949407573529996955224135760342422259061068512044369 --cofactor=1 --add-test-vect…
57 …465446667946905279627659399113263569398956308152294913554433653942643 --cofactor=1 --add-test-vect…
61 …746333217197532963996371363321113864768612440380340372808892707005449 --cofactor=1 --add-test-vect…
65 …41669C976316DA6321 --order=0xE95E4A5F737059DC60DF5991D45029409E60FC09 --cofactor=1 --add-test-vect…
69 …A2FA299B8F --order=0xC302F41D932A36CDA7A3462F9E9E916B5BE8F1029AC4ACC1 --cofactor=1 --add-test-vect…
73 …CD --order=0xD7C134AA264366862A18302575D0FB98D116BC4B6DDEBCA3A5A7939F --cofactor=1 --add-test-vect…
77 …er=0xA9FB57DBA1EEA9BC3E660A909D838D718C397AA3B561A6F7901E0E82974856A7 --cofactor=1 --add-test-vect…
81 …C4FB7E13C785ED201E065F98FCFA5B68F12A32D482EC7EE8658E98691555B44C59311 --cofactor=1 --add-test-vect…
[all …]
H A Dexpand_libecc.py175 def __init__(self, a, b, prime, order, cofactor, gx, gy, npoints, name, oid): argument
180 self.c = cofactor
1301 cofactor = stringtoint(Cofactor)
1328 return (True, (a, b, prime, order, cofactor, gx, gy))
1445 def curve_params(name, prime, pbitlen, a, b, gx, gy, order, cofactor, oid, alpha_montgomery, gamma_… argument
1475 npoints = order * cofactor
1530 ec_params_string += export_curve_int(name, "cofactor", cofactor, getbytelen(cofactor))
1684 …name = oid = prime = a = b = gx = gy = g = order = cofactor = ECfile = remove = remove_all = add_t…
1720 cofactor = get_int(arg.replace(' ', ''))
1820 …a != None) or (b != None) or (gx != None) or (gy != None) or (order != None) or (cofactor != None):
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/freebsd/crypto/openssl/crypto/ec/
H A Dec_lib.c59 ret->cofactor = BN_new(); in ossl_ec_group_new_ex()
60 if (ret->cofactor == NULL) in ossl_ec_group_new_ex()
71 BN_free(ret->cofactor); in ossl_ec_group_new_ex()
135 BN_free(group->cofactor); in EC_GROUP_free()
156 BN_clear_free(group->cofactor); in EC_GROUP_clear_free()
245 if (!BN_copy(dest->cofactor, src->cofactor)) in EC_GROUP_copy()
307 * Try computing cofactor from the generator order (n) and field cardinality (q).
317 * Otherwise, zero cofactor and return success.
326 * If the cofactor i in ec_guess_cofactor()
368 EC_GROUP_set_generator(EC_GROUP * group,const EC_POINT * generator,const BIGNUM * order,const BIGNUM * cofactor) EC_GROUP_set_generator() argument
467 EC_GROUP_get_cofactor(const EC_GROUP * group,BIGNUM * cofactor,BN_CTX * ctx) EC_GROUP_get_cofactor() argument
1551 BIGNUM *p = NULL, *a = NULL, *b = NULL, *order = NULL, *cofactor = NULL; EC_GROUP_new_from_params() local
[all...]
H A Deck_prn.c77 const BIGNUM *order = NULL, *cofactor = NULL; in ECPKParameters_print() local
143 cofactor = EC_GROUP_get0_cofactor(x); in ECPKParameters_print()
206 if ((cofactor != NULL) && !ASN1_bn_print(bp, "Cofactor: ", cofactor, NULL, off)) in ECPKParameters_print()
H A Dec_curve.c29 unsigned int cofactor; /* promoted to BN_ULONG */ member
3120 || !BN_set_word(x, (BN_ULONG)data->cofactor)) {
3259 const BIGNUM *cofactor = NULL; in ec_group_new_from_data()
3268 cofactor = EC_GROUP_get0_cofactor(group); in ec_group_new_from_data()
3328 /* check the optional cofactor (ignore if its zero) */ in EC_GROUP_new_by_curve_name_ex()
3329 && (cofactor == NULL || BN_is_zero(cofactor) in EC_GROUP_new_by_curve_name_ex()
3330 || BN_is_word(cofactor, (const BN_ULONG)curve.data->cofactor)) in EC_GROUP_new_by_curve_name_ex()
3384 const BIGNUM *cofactor = NULL; ossl_ec_curve_nid_from_params() local
H A Dec_backend.c259 const BIGNUM *cofactor = EC_GROUP_get0_cofactor(group); in ec_group_explicit_todata() local
261 if (cofactor != NULL in ec_group_explicit_todata()
263 OSSL_PKEY_PARAM_EC_COFACTOR, cofactor)) { in ec_group_explicit_todata()
362 const BIGNUM *cofactor; in ossl_ec_set_ecdh_cofactor_mode() local
373 if ((cofactor = EC_GROUP_get0_cofactor(ecg)) == NULL) in ossl_ec_set_ecdh_cofactor_mode()
376 /* ECDH cofactor mode has no effect if cofactor is 1 */ in ossl_ec_set_ecdh_cofactor_mode()
377 if (BN_is_one(cofactor)) in ossl_ec_set_ecdh_cofactor_mode()
H A Dec_asn1.c75 ASN1_INTEGER *cofactor; member
144 = { ASN1_EMBED(ECPARAMETERS, version, INT32), ASN1_SIMPLE(ECPARAMETERS, fieldID, X9_62_FIELDID), ASN1_SIMPLE(ECPARAMETERS, curve, X9_62_CURVE), ASN1_SIMPLE(ECPARAMETERS, base, ASN1_OCTET_STRING), ASN1_SIMPLE(ECPARAMETERS, order, ASN1_INTEGER), ASN1_OPT(ECPARAMETERS, cofactor, ASN1_INTEGER) } ASN1_SEQUENCE_END(ECPARAMETERS)
439 /* set the cofactor (optional) */ in EC_GROUP_get_ecparameters()
442 ret->cofactor = BN_to_ASN1_INTEGER(tmp, orig = ret->cofactor); in EC_GROUP_get_ecparameters()
443 if (ret->cofactor == NULL) { in EC_GROUP_get_ecparameters()
444 ret->cofactor = orig; in EC_GROUP_get_ecparameters()
730 /* extract the cofactor (optional) */ in EC_GROUP_new_from_ecparameters()
731 if (params->cofactor == NULL) { in EC_GROUP_new_from_ecparameters()
734 } else if (ASN1_INTEGER_to_BN(params->cofactor, in EC_GROUP_new_from_ecparameters()
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/freebsd/crypto/openssl/doc/man7/
H A DEVP_KEYEXCH-ECDH.pod15 =item "ecdh-cofactor-mode" (B<OSSL_EXCHANGE_PARAM_EC_ECDH_COFACTOR_MODE>) <integer>
23 When setting, the value should be 1, 0 or -1, respectively forcing cofactor mode
28 cofactor mode is on or off.
58 =item "ecdh-cofactor-check" (B<OSSL_EXCHANGE_PARAM_FIPS_ECDH_COFACTOR_CHECK>) <integer>
62 the EC curve has a cofactor that is not 1, and the cofactor is not used.
H A DEVP_PKEY-EC.pod61 =item "cofactor" (B<OSSL_PKEY_PARAM_EC_COFACTOR>) <unsigned integer>
68 I<cofactor> is an optional value.
69 I<order> multiplied by the I<cofactor> gives the number of points on the curve.
76 =item "use-cofactor-flag" (B<OSSL_PKEY_PARAM_USE_COFACTOR_ECDH>) <integer>
79 if the value is zero. The cofactor variant multiplies the shared secret by the
80 EC curve's cofactor (note for some curves the cofactor is 1).
279 * This curve has a cofactor that is not 1 - so setting CDH mode changes
280 * the behaviour. For many curves the cofactor is 1 - so setting this has
/freebsd/crypto/libecc/src/ecdh/
H A Decccdh.c172 nn_src_t cofactor; in ecccdh_derive_secret() local
187 cofactor = &(our_priv_key->params->ec_gen_cofactor); in ecccdh_derive_secret()
188 ret = nn_isone(cofactor, &isone); EG(ret, err); in ecccdh_derive_secret()
194 ret = _prj_pt_unprotected_mult(Q, cofactor, Q); EG(ret, err); in ecccdh_derive_secret()
228 PTR_NULLIFY(cofactor); in ecccdh_derive_secret()
H A Dx25519_448.c167 nn_t cofactor; in x25519_448_core() local
200 cofactor = &(shortw_curve_params.ec_gen_cofactor); in x25519_448_core()
259 ret = check_prj_pt_order(&Q, cofactor, PUBLIC_PT, &cmp); EG(ret, err); in x25519_448_core()
299 PTR_NULLIFY(cofactor); in x25519_448_core()
/freebsd/crypto/openssl/crypto/cms/
H A Dcms_ec.c127 int kdf_nid, kdfmd_nid, cofactor; in ecdh_cms_set_kdf_param() local
133 /* Lookup KDF type, cofactor mode and digest */ in ecdh_cms_set_kdf_param()
138 cofactor = 0; in ecdh_cms_set_kdf_param()
140 cofactor = 1; in ecdh_cms_set_kdf_param()
144 if (EVP_PKEY_CTX_set_ecdh_cofactor_mode(pctx, cofactor) <= 0) in ecdh_cms_set_kdf_param()
323 /* Lookup NID for KDF+cofactor+digest */ in ecdh_cms_encrypt()
/freebsd/crypto/openssl/doc/man3/
H A DEC_GROUP_copy.pod27 const BIGNUM *order, const BIGNUM *cofactor);
33 int EC_GROUP_get_cofactor(const EC_GROUP *group, BIGNUM *cofactor, BN_CTX *ctx);
84 parameters include the B<generator>, the B<order> and the B<cofactor>. The B<generator> is a well d…
86 n-1 where n is the B<order>. The B<order> multiplied by the B<cofactor> gives the number of points …
94 EC_GROUP_get_cofactor() retrieves the cofactor of B<group> and copies its value
95 into B<cofactor>. It fails in case B<group> is not fully initialized or if the
96 cofactor is not set (or set to zero).
208 …UP_get_cofactor() returns 0 if the cofactor is not set (or is set to zero) for B<group> or if copy…
226 EC_GROUP_get0_cofactor() returns an internal pointer to the group cofactor.
/freebsd/crypto/openssl/providers/implementations/encode_decode/
H A Dencode_key2text.c255 const BIGNUM *order = NULL, *cofactor = NULL; in ec_param_explicit_to_text()
272 cofactor = EC_GROUP_get0_cofactor(group); in ec_param_explicit_to_text()
279 || (cofactor != NULL in ec_param_explicit_to_text()
280 && !ossl_bio_print_labeled_bignum(out, "Cofactor: ", cofactor)) in ec_param_explicit_to_text()
254 const BIGNUM *order = NULL, *cofactor = NULL; ec_param_explicit_to_text() local
/freebsd/crypto/libecc/include/libecc/curves/known/
H A Dec_params_external.h86 const ec_str_param *cofactor; member
H A Dec_params_secp256r1.h192 .cofactor = &secp256r1_cofactor_str_param,
H A Dec_params_brainpoolp384r1.h230 .cofactor = &brainpoolp384r1_cofactor_str_param,
H A Dec_params_secp384r1.h216 .cofactor = &secp384r1_cofactor_str_param,
H A Dec_params_gost256.h198 .cofactor = &GOST_256bits_curve_cofactor_str_param,
H A Dec_params_frp256v1.h198 .cofactor = &frp256v1_cofactor_str_param,
H A Dec_params_brainpoolp256r1.h192 .cofactor = &brainpoolp256r1_cofactor_str_param,
H A Dec_params_gost512.h251 .cofactor = &GOST_512bits_curve_cofactor_str_param,
H A Dec_params_brainpoolp512r1.h242 .cofactor = &brainpoolp512r1_cofactor_str_param,
/freebsd/crypto/openssl/providers/implementations/exchange/
H A Decdh_exch.c60 * ECDH cofactor mode:
64 * . -1 use cofactor mode set for k
469 const BIGNUM *cofactor; in ecdh_size()
488 || (cofactor = EC_GROUP_get0_cofactor(group)) == NULL) in ecdh_plain_derive()
491 has_cofactor = !BN_is_one(cofactor); in ecdh_plain_derive()
506 * - if ctx->k->cofactor == 1, the cofactor_mode flag is irrelevant, use in ecdh_plain_derive()
508 * - if ctx->k->cofactor != 1, use a duplicate of ctx->k with the flag in ecdh_plain_derive()
482 const BIGNUM *cofactor; ecdh_plain_derive() local
/freebsd/crypto/libecc/src/curves/
H A Dec_params.c110 PARAM_BUF_PTR(in_str_params->cofactor), in import_params()
111 PARAM_BUF_LEN(in_str_params->cofactor)); EG(ret, err); in import_params()

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