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Diffstat (limited to 'static/freebsd/man3/BN_security_bits.3')
| -rw-r--r-- | static/freebsd/man3/BN_security_bits.3 | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/static/freebsd/man3/BN_security_bits.3 b/static/freebsd/man3/BN_security_bits.3 new file mode 100644 index 00000000..b846406f --- /dev/null +++ b/static/freebsd/man3/BN_security_bits.3 @@ -0,0 +1,106 @@ +.\" -*- mode: troff; coding: utf-8 -*- +.\" Automatically generated by Pod::Man v6.0.2 (Pod::Simple 3.45) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>. +.ie n \{\ +. ds C` "" +. ds C' "" +'br\} +.el\{\ +. ds C` +. ds C' +'br\} +.\" +.\" Escape single quotes in literal strings from groff's Unicode transform. +.ie \n(.g .ds Aq \(aq +.el .ds Aq ' +.\" +.\" If the F register is >0, we'll generate index entries on stderr for +.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index +.\" entries marked with X<> in POD. Of course, you'll have to process the +.\" output yourself in some meaningful fashion. +.\" +.\" Avoid warning from groff about undefined register 'F'. +.de IX +.. +.nr rF 0 +.if \n(.g .if rF .nr rF 1 +.if (\n(rF:(\n(.g==0)) \{\ +. if \nF \{\ +. de IX +. tm Index:\\$1\t\\n%\t"\\$2" +.. +. if !\nF==2 \{\ +. nr % 0 +. nr F 2 +. \} +. \} +.\} +.rr rF +.\" +.\" Required to disable full justification in groff 1.23.0. +.if n .ds AD l +.\" ======================================================================== +.\" +.IX Title "BN_SECURITY_BITS 3ossl" +.TH BN_SECURITY_BITS 3ossl 2026-04-07 3.5.6 OpenSSL +.\" For nroff, turn off justification. Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH NAME +BN_security_bits \- returns bits of security based on given numbers +.SH SYNOPSIS +.IX Header "SYNOPSIS" +.Vb 1 +\& #include <openssl/bn.h> +\& +\& int BN_security_bits(int L, int N); +.Ve +.SH DESCRIPTION +.IX Header "DESCRIPTION" +\&\fBBN_security_bits()\fR returns the number of bits of security provided by a +specific algorithm and a particular key size. The bits of security is +defined in NIST SP800\-57. Currently, \fBBN_security_bits()\fR support two types +of asymmetric algorithms: the FFC (Finite Field Cryptography) and IFC +(Integer Factorization Cryptography). For FFC, e.g., DSA and DH, both +parameters \fBL\fR and \fBN\fR are used to decide the bits of security, where +\&\fBL\fR is the size of the public key and \fBN\fR is the size of the private +key. For IFC, e.g., RSA, only \fBL\fR is used and it\*(Aqs commonly considered +to be the key size (modulus). +.SH "RETURN VALUES" +.IX Header "RETURN VALUES" +Number of security bits. +.SH NOTES +.IX Header "NOTES" +ECC (Elliptic Curve Cryptography) is not covered by the \fBBN_security_bits()\fR +function. The symmetric algorithms are not covered neither. +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fBDH_security_bits\fR\|(3), \fBDSA_security_bits\fR\|(3), \fBRSA_security_bits\fR\|(3) +.SH HISTORY +.IX Header "HISTORY" +The \fBBN_security_bits()\fR function was added in OpenSSL 1.1.0. +.SH COPYRIGHT +.IX Header "COPYRIGHT" +Copyright 2017\-2019 The OpenSSL Project Authors. All Rights Reserved. +.PP +Licensed under the Apache License 2.0 (the "License"). You may not use +this file except in compliance with the License. You can obtain a copy +in the file LICENSE in the source distribution or at +<https://www.openssl.org/source/license.html>. |