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Hakase
2018-08-01 15:34:01 +09:00
parent 46f6b5e2fe
commit 0961fd12de
113 changed files with 2568 additions and 901 deletions
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doc/man3/EC_GROUP_new.pod
+33 -15
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@@ -2,12 +2,22 @@
=head1 NAME
EC_GROUP_get_ecparameters, EC_GROUP_get_ecpkparameters,
EC_GROUP_new, EC_GROUP_new_from_ecparameters,
EC_GROUP_get_ecparameters,
EC_GROUP_get_ecpkparameters,
EC_GROUP_new,
EC_GROUP_new_from_ecparameters,
EC_GROUP_new_from_ecpkparameters,
EC_GROUP_free, EC_GROUP_clear_free, EC_GROUP_new_curve_GFp,
EC_GROUP_new_curve_GF2m, EC_GROUP_new_by_curve_name, EC_GROUP_set_curve_GFp,
EC_GROUP_get_curve_GFp, EC_GROUP_set_curve_GF2m, EC_GROUP_get_curve_GF2m,
EC_GROUP_free,
EC_GROUP_clear_free,
EC_GROUP_new_curve_GFp,
EC_GROUP_new_curve_GF2m,
EC_GROUP_new_by_curve_name,
EC_GROUP_set_curve,
EC_GROUP_get_curve,
EC_GROUP_set_curve_GFp,
EC_GROUP_get_curve_GFp,
EC_GROUP_set_curve_GF2m,
EC_GROUP_get_curve_GF2m,
EC_get_builtin_curves - Functions for creating and destroying EC_GROUP
objects
@@ -27,6 +37,10 @@ objects
const BIGNUM *b, BN_CTX *ctx);
EC_GROUP *EC_GROUP_new_by_curve_name(int nid);
int EC_GROUP_set_curve(EC_GROUP *group, const BIGNUM *p, const BIGNUM *a,
const BIGNUM *b, BN_CTX *ctx);
int EC_GROUP_get_curve(const EC_GROUP *group, BIGNUM *p, BIGNUM *a, BIGNUM *b,
BN_CTX *ctx);
int EC_GROUP_set_curve_GFp(EC_GROUP *group, const BIGNUM *p,
const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
int EC_GROUP_get_curve_GFp(const EC_GROUP *group, BIGNUM *p,
@@ -58,22 +72,26 @@ Operations in a binary field are performed relative to an B<irreducible polynomi
use a trinomial or a pentanomial for this parameter.
A new curve can be constructed by calling EC_GROUP_new, using the implementation provided by B<meth> (see
L<EC_GFp_simple_method(3)>). It is then necessary to call either EC_GROUP_set_curve_GFp or
EC_GROUP_set_curve_GF2m as appropriate to create a curve defined over Fp or over F2^m respectively.
L<EC_GFp_simple_method(3)>). It is then necessary to call EC_GROUP_set_curve() to set the curve parameters.
EC_GROUP_new_from_ecparameters() will create a group from the
specified B<params> and
EC_GROUP_new_from_ecpkparameters() will create a group from the specific PK B<params>.
EC_GROUP_set_curve_GFp sets the curve parameters B<p>, B<a> and B<b> for a curve over Fp stored in B<group>.
EC_group_get_curve_GFp obtains the previously set curve parameters.
EC_GROUP_set_curve() sets the curve parameters B<p>, B<a> and B<b>. For a curve over Fp B<b>
is the prime for the field. For a curve over F2^m B<p> represents the irreducible polynomial - each bit
represents a term in the polynomial. Therefore there will either be three or five bits set dependent on whether
the polynomial is a trinomial or a pentanomial.
EC_GROUP_set_curve_GF2m sets the equivalent curve parameters for a curve over F2^m. In this case B<p> represents
the irreducible polynomial - each bit represents a term in the polynomial. Therefore there will either be three
or five bits set dependent on whether the polynomial is a trinomial or a pentanomial.
EC_group_get_curve_GF2m obtains the previously set curve parameters.
EC_group_get_curve() obtains the previously set curve parameters.
The functions EC_GROUP_new_curve_GFp and EC_GROUP_new_curve_GF2m are shortcuts for calling EC_GROUP_new and the
appropriate EC_group_set_curve function. An appropriate default implementation method will be used.
EC_GROUP_set_curve_GFp() and EC_GROUP_set_curve_GF2m() are synonyms for EC_GROUP_set_curve(). They are defined for
backwards compatibility only and should not be used.
EC_GROUP_get_curve_GFp() and EC_GROUP_get_curve_GF2m() are synonyms for EC_GROUP_get_curve(). They are defined for
backwards compatibility only and should not be used.
The functions EC_GROUP_new_curve_GFp and EC_GROUP_new_curve_GF2m are shortcuts for calling EC_GROUP_new and then the
EC_GROUP_set_curve function. An appropriate default implementation method will be used.
Whilst the library can be used to create any curve using the functions described above, there are also a number of
predefined curves that are available. In order to obtain a list of all of the predefined curves, call the function