?HAMA

Navigation

Breadcrumbs

/ / proc / thread-self / root / opt / alt / openssl11 / share / man / man7

Create

Create File | Create Folder | Upload Files | Run Command

Edit File Size: 7.18 KB

/proc/thread-self/root/opt/alt/openssl11/share/man/man7/Ed448.7ssl

Text Base64

.\" Automatically generated by Pod::Man 4.11 (Pod::Simple 3.35)
.\"
.\" 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
..
.\" 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'
.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\}
.\"
.\" 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
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" 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 "ED25519 7"
.TH ED25519 7 "2023-09-11" "1.1.1w" "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"
Ed25519, Ed448 \&\- EVP_PKEY Ed25519 and Ed448 support
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The \fBEd25519\fR and \fBEd448\fR \s-1EVP_PKEY\s0 implementation supports key generation,
one-shot digest sign and digest verify using PureEdDSA and \fBEd25519\fR or \fBEd448\fR
(see \s-1RFC8032\s0). It has associated private and public key formats compatible with
\&\s-1RFC 8410.\s0
.PP
No additional parameters can be set during key generation, one-shot signing or
verification. In particular, because PureEdDSA is used, a digest must \fB\s-1NOT\s0\fR be
specified when signing or verifying.
.SH "NOTES"
.IX Header "NOTES"
The PureEdDSA algorithm does not support the streaming mechanism
of other signature algorithms using, for example, \fBEVP_DigestUpdate()\fR.
The message to sign or verify must be passed using the one-shot
\&\fBEVP_DigestSign()\fR and \fBEVP_DigestVerify()\fR functions.
.PP
When calling \fBEVP_DigestSignInit()\fR or \fBEVP_DigestVerifyInit()\fR, the
digest \fBtype\fR parameter \fB\s-1MUST\s0\fR be set to \fB\s-1NULL\s0\fR.
.PP
Applications wishing to sign certificates (or other structures such as
CRLs or certificate requests) using Ed25519 or Ed448 can either use \fBX509_sign()\fR
or \fBX509_sign_ctx()\fR in the usual way.
.PP
A context for the \fBEd25519\fR algorithm can be obtained by calling:
.PP
.Vb 1
\& EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_ED25519, NULL);
.Ve
.PP
For the \fBEd448\fR algorithm a context can be obtained by calling:
.PP
.Vb 1
\& EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_ED448, NULL);
.Ve
.PP
Ed25519 or Ed448 private keys can be set directly using
\&\fBEVP_PKEY_new_raw_private_key\fR\|(3) or loaded from a PKCS#8 private key file
using \fBPEM_read_bio_PrivateKey\fR\|(3) (or similar function). Completely new keys
can also be generated (see the example below). Setting a private key also sets
the associated public key.
.PP
Ed25519 or Ed448 public keys can be set directly using
\&\fBEVP_PKEY_new_raw_public_key\fR\|(3) or loaded from a SubjectPublicKeyInfo
structure in a \s-1PEM\s0 file using \fBPEM_read_bio_PUBKEY\fR\|(3) (or similar function).
.PP
Ed25519 and Ed448 can be tested within \fBspeed\fR\|(1) application since version 1.1.1.
Valid algorithm names are \fBed25519\fR, \fBed448\fR and \fBeddsa\fR. If \fBeddsa\fR is
specified, then both Ed25519 and Ed448 are benchmarked.
.SH "EXAMPLES"
.IX Header "EXAMPLES"
This example generates an \fB\s-1ED25519\s0\fR private key and writes it to standard
output in \s-1PEM\s0 format:
.PP
.Vb 9
\& #include <openssl/evp.h>
\& #include <openssl/pem.h>
\& ...
\& EVP_PKEY *pkey = NULL;
\& EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_ED25519, NULL);
\& EVP_PKEY_keygen_init(pctx);
\& EVP_PKEY_keygen(pctx, &pkey);
\& EVP_PKEY_CTX_free(pctx);
\& PEM_write_PrivateKey(stdout, pkey, NULL, NULL, 0, NULL, NULL);
.Ve
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBEVP_PKEY_CTX_new\fR\|(3),
\&\fBEVP_PKEY_keygen\fR\|(3),
\&\fBEVP_DigestSignInit\fR\|(3),
\&\fBEVP_DigestVerifyInit\fR\|(3),
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2017\-2020 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L"License\*(R").  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
<https://www.openssl.org/source/license.html>.

Exit & Reset Text mode: syntax highlighting auto-detects file type.

Directory Contents

Dirs: 0 × Files: 20

Sort:

Enable drag-to-move

Name	Size	Perms	Modified	Actions
bio.7ssl	7.02 KB	lrw-r--r--	2026-04-20 10:47:21	Edit Download recursive recursive
crypto.7ssl	5.87 KB	lrw-r--r--	2026-04-20 10:47:21	Edit Download recursive recursive
ct.7ssl	5.51 KB	lrw-r--r--	2026-04-20 10:47:21	Edit Download recursive recursive
des_modes.7ssl	10.46 KB	lrw-r--r--	2026-04-20 10:47:21	Edit Download recursive recursive
Ed448.7ssl	7.18 KB	lrw-r--r--	2026-04-20 10:47:21	Edit Download recursive recursive
Ed25519.7ssl	7.18 KB	lrw-r--r--	2026-04-20 10:47:21	Edit Download recursive recursive
evp.7ssl	9.36 KB	lrw-r--r--	2026-04-20 10:47:21	Edit Download recursive recursive
ossl_store-file.7ssl	6.29 KB	lrw-r--r--	2026-04-20 10:47:21	Edit Download recursive recursive
ossl_store.7ssl	6.68 KB	lrw-r--r--	2026-04-20 10:47:22	Edit Download recursive recursive
passphrase-encoding.7ssl	11.56 KB	lrw-r--r--	2026-04-20 10:47:22	Edit Download recursive recursive
proxy-certificates.7ssl	16.87 KB	lrw-r--r--	2026-04-20 10:47:22	Edit Download recursive recursive
RAND.7ssl	7.44 KB	lrw-r--r--	2026-04-20 10:47:22	Edit Download recursive recursive
RAND_DRBG.7ssl	17.08 KB	lrw-r--r--	2026-04-20 10:47:22	Edit Download recursive recursive
RSA-PSS.7ssl	6.04 KB	lrw-r--r--	2026-04-20 10:47:22	Edit Download recursive recursive
scrypt.7ssl	8.09 KB	lrw-r--r--	2026-04-20 10:47:22	Edit Download recursive recursive
SM2.7ssl	6.87 KB	lrw-r--r--	2026-04-20 10:47:22	Edit Download recursive recursive
ssl.7ssl	50.62 KB	lrw-r--r--	2026-04-20 10:47:22	Edit Download recursive recursive
X448.7ssl	6.32 KB	lrw-r--r--	2026-04-20 10:47:22	Edit Download recursive recursive
x509.7ssl	6.53 KB	lrw-r--r--	2026-04-20 10:47:22	Edit Download recursive recursive
X25519.7ssl	6.32 KB	lrw-r--r--	2026-04-20 10:47:22	Edit Download recursive recursive