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Fix doc for EC_GROUP_set_curve()

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(cherry picked from commit eb2ff0408ac6e934e05db7ed4006855c018584f1)

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/10235)
This commit is contained in:
Nicola Tuveri 2019-10-21 16:07:22 +03:00
parent 383ba7ade7
commit 77f945bc98
1 changed files with 3 additions and 1 deletions
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4
doc/man3/EC_GROUP_new.pod
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@ -82,10 +82,12 @@ B<params> and EC_GROUP_new_from_ecpkparameters() will create a group from the
specific PK B<params>.
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
over Fp B<p> 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.
In either case, B<a> and B<b> represents the coefficients a and b from the
relevant equation introduced above.
EC_group_get_curve() obtains the previously set curve parameters.