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-rw-r--r--src/lib/libcrypto/man/BN_get0_nist_prime_521.389
-rw-r--r--src/lib/libcrypto/man/BN_nist_mod_521.3113
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diff --git a/src/lib/libcrypto/man/BN_get0_nist_prime_521.3 b/src/lib/libcrypto/man/BN_get0_nist_prime_521.3
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1.\" $OpenBSD: BN_get0_nist_prime_521.3,v 1.5 2018/03/23 00:09:11 schwarze Exp $
2.\" OpenSSL 99d63d46 Oct 26 13:56:48 2016 -0400
3.\"
4.\" This file was written by Rich Salz <rsalz@openssl.org>.
5.\" Copyright (c) 2016 The OpenSSL Project. All rights reserved.
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51.Dd $Mdocdate: March 23 2018 $
52.Dt BN_GET0_NIST_PRIME_521 3
53.Os
54.Sh NAME
55.Nm BN_get0_nist_prime_192 ,
56.Nm BN_get0_nist_prime_224 ,
57.Nm BN_get0_nist_prime_256 ,
58.Nm BN_get0_nist_prime_384 ,
59.Nm BN_get0_nist_prime_521
60.Nd create standardized public primes or DH pairs
61.Sh SYNOPSIS
62.In openssl/bn.h
63.Ft const BIGNUM *
64.Fn BN_get0_nist_prime_192 void
65.Ft const BIGNUM *
66.Fn BN_get0_nist_prime_224 void
67.Ft const BIGNUM *
68.Fn BN_get0_nist_prime_256 void
69.Ft const BIGNUM *
70.Fn BN_get0_nist_prime_384 void
71.Ft const BIGNUM *
72.Fn BN_get0_nist_prime_521 void
73.Sh DESCRIPTION
74The
75.Fn BN_get0_nist_prime_192 ,
76.Fn BN_get0_nist_prime_224 ,
77.Fn BN_get0_nist_prime_256 ,
78.Fn BN_get0_nist_prime_384 ,
79and
80.Fn BN_get0_nist_prime_521
81functions return a
82.Vt BIGNUM
83for the specific NIST prime curve (e.g. P-256).
84.Sh SEE ALSO
85.Xr BN_new 3
86.Sh HISTORY
87These functions first appeared in OpenSSL 0.9.8
88and have been available since
89.Ox 4.5 .
diff --git a/src/lib/libcrypto/man/BN_nist_mod_521.3 b/src/lib/libcrypto/man/BN_nist_mod_521.3
deleted file mode 100644
index 72dd4a7124..0000000000
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1.\" $OpenBSD: BN_nist_mod_521.3,v 1.1 2022/11/21 22:04:04 schwarze Exp $
2.\"
3.\" Copyright (c) 2022 Ingo Schwarze <schwarze@openbsd.org>
4.\"
5.\" Permission to use, copy, modify, and distribute this software for any
6.\" purpose with or without fee is hereby granted, provided that the above
7.\" copyright notice and this permission notice appear in all copies.
8.\"
9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16.\"
17.Dd $Mdocdate: November 21 2022 $
18.Dt BN_NIST_MOD_521 3
19.Os
20.Sh NAME
21.Nm BN_nist_mod_192 ,
22.Nm BN_nist_mod_224 ,
23.Nm BN_nist_mod_256 ,
24.Nm BN_nist_mod_384 ,
25.Nm BN_nist_mod_521
26.Nd reduction modulo NIST-recommended primes
27.Sh SYNOPSIS
28.In openssl/bn.h
29.Ft int
30.Fo BN_nist_mod_192
31.Fa "BIGNUM *r"
32.Fa "const BIGNUM *a"
33.Fa "const BIGNUM *m"
34.Fa "BN_CTX *ctx"
35.Fc
36.Ft int
37.Fo BN_nist_mod_224
38.Fa "BIGNUM *r"
39.Fa "const BIGNUM *a"
40.Fa "const BIGNUM *m"
41.Fa "BN_CTX *ctx"
42.Fc
43.Ft int
44.Fo BN_nist_mod_256
45.Fa "BIGNUM *r"
46.Fa "const BIGNUM *a"
47.Fa "const BIGNUM *m"
48.Fa "BN_CTX *ctx"
49.Fc
50.Ft int
51.Fo BN_nist_mod_384
52.Fa "BIGNUM *r"
53.Fa "const BIGNUM *a"
54.Fa "const BIGNUM *m"
55.Fa "BN_CTX *ctx"
56.Fc
57.Ft int
58.Fo BN_nist_mod_521
59.Fa "BIGNUM *r"
60.Fa "const BIGNUM *a"
61.Fa "const BIGNUM *m"
62.Fa "BN_CTX *ctx"
63.Fc
64.Sh DESCRIPTION
65These functions are optimized versions of
66.Xr BN_nnmod 3
67using precomputed tables.
68They ignore their
69.Fa m
70argument and use the following moduli instead:
71.Pp
72.Bl -tag -width BN_nist_mod_521() -offset indent -compact
73.It Fn BN_nist_mod_192
74.Xr BN_get0_nist_prime_192 3
75.It Fn BN_nist_mod_224
76.Xr BN_get0_nist_prime_224 3
77.It Fn BN_nist_mod_256
78.Xr BN_get0_nist_prime_256 3
79.It Fn BN_nist_mod_384
80.Xr BN_get0_nist_prime_384 3
81.It Fn BN_nist_mod_521
82.Xr BN_get0_nist_prime_521 3
83.El
84.Pp
85They reduce
86.Fa a
87modulo the respective prime number and place the non-negative remainder in
88.Fa r .
89.Pp
90These functions are designed to save time when performing multiplications
91in prime fields of these specific orders.
92Consequently, if
93.Fa a
94is negative or larger than the square of the modulus being used, they call
95.Xr BN_nnmod 3
96instead of attempting any optimization.
97.Sh RETURN VALUES
98These functions return 1 on success or 0 on error.
99.Sh SEE ALSO
100.Xr BN_get0_nist_prime_521 3 ,
101.Xr BN_nnmod 3 ,
102.Xr EC_GFp_nist_method 3
103.Sh STANDARDS
104.Rs
105.%T Digital Signature Standard (DSS)
106.%I National Institute of Standards and Technology
107.%R FIPS PUB 186-4
108.%U https://doi.org/10.6028/NIST.FIPS.186-4
109.%Q Information Technology Laboratory
110.%C Gaithersburg, Maryland
111.%D July 2013
112.%O Appendix D.1.2 Curves over Prime Fields
113.Re
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