diff options
Diffstat (limited to 'secure/lib/libcrypto/man/man3/EVP_chacha20.3')
| -rw-r--r-- | secure/lib/libcrypto/man/man3/EVP_chacha20.3 | 124 |
1 files changed, 24 insertions, 100 deletions
diff --git a/secure/lib/libcrypto/man/man3/EVP_chacha20.3 b/secure/lib/libcrypto/man/man3/EVP_chacha20.3 index db996e6d4422..0f9e0f784ffd 100644 --- a/secure/lib/libcrypto/man/man3/EVP_chacha20.3 +++ b/secure/lib/libcrypto/man/man3/EVP_chacha20.3 @@ -1,4 +1,5 @@ -.\" Automatically generated by Pod::Man 4.14 (Pod::Simple 3.42) +.\" -*- mode: troff; coding: utf-8 -*- +.\" Automatically generated by Pod::Man 5.0102 (Pod::Simple 3.45) .\" .\" Standard preamble: .\" ======================================================================== @@ -15,29 +16,12 @@ .ft R .fi .. -.\" Set up some character translations and predefined strings. \*(-- will -.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left -.\" double quote, and \*(R" will give a right double quote. \*(C+ will -.\" give a nicer C++. Capital omega is used to do unbreakable dashes and -.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, -.\" nothing in troff, for use with C<>. -.tr \(*W- -.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' +.\" \*(C` and \*(C' are quotes in nroff, nothing in troff, for use with C<>. .ie n \{\ -. ds -- \(*W- -. ds PI pi -. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch -. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch -. ds L" "" -. ds R" "" . ds C` "" . ds C' "" 'br\} .el\{\ -. ds -- \|\(em\| -. ds PI \(*p -. ds L" `` -. ds R" '' . ds C` . ds C' 'br\} @@ -68,79 +52,19 @@ . \} .\} .rr rF -.\" Fear. Run. Save yourself. No user-serviceable parts. -. \" fudge factors for nroff and troff -.if n \{\ -. ds #H 0 -. ds #V .8m -. ds #F .3m -. ds #[ \f1 -. ds #] \fP -.\} -.if t \{\ -. ds #H ((1u-(\\\\n(.fu%2u))*.13m) -. ds #V .6m -. ds #F 0 -. ds #[ \& -. ds #] \& -.\} -. \" simple accents for nroff and troff -.if n \{\ -. ds ' \& -. ds ` \& -. ds ^ \& -. ds , \& -. ds ~ ~ -. ds / -.\} -.if t \{\ -. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" -. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' -. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' -. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' -. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' -. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' -.\} -. \" troff and (daisy-wheel) nroff accents -.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V' -.ds 8 \h'\*(#H'\(*b\h'-\*(#H' -.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#] -.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H' -.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u' -.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#] -.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#] -.ds ae a\h'-(\w'a'u*4/10)'e -.ds Ae A\h'-(\w'A'u*4/10)'E -. \" corrections for vroff -.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u' -.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u' -. \" for low resolution devices (crt and lpr) -.if \n(.H>23 .if \n(.V>19 \ -\{\ -. ds : e -. ds 8 ss -. ds o a -. ds d- d\h'-1'\(ga -. ds D- D\h'-1'\(hy -. ds th \o'bp' -. ds Th \o'LP' -. ds ae ae -. ds Ae AE -.\} -.rm #[ #] #H #V #F C .\" ======================================================================== .\" .IX Title "EVP_CHACHA20 3ossl" -.TH EVP_CHACHA20 3ossl "2023-09-19" "3.0.11" "OpenSSL" +.TH EVP_CHACHA20 3ossl 2025-07-01 3.5.1 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" +.SH NAME EVP_chacha20, EVP_chacha20_poly1305 \&\- EVP ChaCha20 stream cipher -.SH "SYNOPSIS" +.SH SYNOPSIS .IX Header "SYNOPSIS" .Vb 1 \& #include <openssl/evp.h> @@ -148,12 +72,12 @@ EVP_chacha20_poly1305 \& const EVP_CIPHER *EVP_chacha20(void); \& const EVP_CIPHER *EVP_chacha20_poly1305(void); .Ve -.SH "DESCRIPTION" +.SH DESCRIPTION .IX Header "DESCRIPTION" -The ChaCha20 stream cipher for \s-1EVP.\s0 -.IP "\fBEVP_chacha20()\fR" 4 +The ChaCha20 stream cipher for EVP. +.IP \fBEVP_chacha20()\fR 4 .IX Item "EVP_chacha20()" -The ChaCha20 stream cipher. The key length is 256 bits, the \s-1IV\s0 is 128 bits long. +The ChaCha20 stream cipher. The key length is 256 bits, the IV is 128 bits long. The first 64 bits consists of a counter in little-endian order followed by a 64 bit nonce. For example a nonce of: .Sp @@ -162,36 +86,36 @@ bit nonce. For example a nonce of: With an initial counter of 42 (2a in hex) would be expressed as: .Sp 2a000000000000000000000000000002 -.IP "\fBEVP_chacha20_poly1305()\fR" 4 +.IP \fBEVP_chacha20_poly1305()\fR 4 .IX Item "EVP_chacha20_poly1305()" Authenticated encryption with ChaCha20\-Poly1305. Like \fBEVP_chacha20()\fR, the key -is 256 bits and the \s-1IV\s0 is 96 bits. This supports additional authenticated data -(\s-1AAD\s0) and produces a 128\-bit authentication tag. See the -\&\*(L"\s-1AEAD\s0 Interface\*(R" in \fBEVP_EncryptInit\fR\|(3) section for more information. -.SH "NOTES" +is 256 bits and the IV is 96 bits. This supports additional authenticated data +(AAD) and produces a 128\-bit authentication tag. See the +"AEAD Interface" in \fBEVP_EncryptInit\fR\|(3) section for more information. +.SH NOTES .IX Header "NOTES" Developers should be aware of the negative performance implications of calling these functions multiple times and should consider using -\&\fBEVP_CIPHER_fetch\fR\|(3) instead. -See \*(L"Performance\*(R" in \fBcrypto\fR\|(7) for further information. +\&\fBEVP_CIPHER_fetch\fR\|(3) with \fBEVP_CIPHER\-CHACHA\fR\|(7) instead. +See "Performance" in \fBcrypto\fR\|(7) for further information. .PP -\&\s-1RFC 7539\s0 <https://www.rfc-editor.org/rfc/rfc7539.html#section-2.4> -uses a 32 bit counter and a 96 bit nonce for the \s-1IV.\s0 +RFC 7539 <https://www.rfc-editor.org/rfc/rfc7539.html#section-2.4> +uses a 32 bit counter and a 96 bit nonce for the IV. .SH "RETURN VALUES" .IX Header "RETURN VALUES" -These functions return an \fB\s-1EVP_CIPHER\s0\fR structure that contains the +These functions return an \fBEVP_CIPHER\fR structure that contains the implementation of the symmetric cipher. See \fBEVP_CIPHER_meth_new\fR\|(3) for -details of the \fB\s-1EVP_CIPHER\s0\fR structure. +details of the \fBEVP_CIPHER\fR structure. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBevp\fR\|(7), \&\fBEVP_EncryptInit\fR\|(3), \&\fBEVP_CIPHER_meth_new\fR\|(3) -.SH "COPYRIGHT" +.SH COPYRIGHT .IX Header "COPYRIGHT" Copyright 2017\-2023 The OpenSSL Project Authors. All Rights Reserved. .PP -Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use +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 \s-1LICENSE\s0 in the source distribution or at +in the file LICENSE in the source distribution or at <https://www.openssl.org/source/license.html>. |