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Title "X509_SIGN 3"
way too many mistakes in technical documents.
Standard preamble:
========================================================================
..
.... 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 -- \(*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\} . 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.
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'.
.. .nr rF 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 . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] .\} . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} . 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 . \" corrections for vroff . \" for low resolution devices (crt and lpr) \{\ . 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 .\} ========================================================================
Title "X509_SIGN 3"
X509_SIGN 3 "2023-05-30" "3.0.9" "OpenSSL"
For nroff, turn off justification. Always turn off hyphenation; it makesway too many mistakes in technical documents.
"NAME"
X509_sign, X509_sign_ctx,
X509_REQ_sign, X509_REQ_sign_ctx,
X509_CRL_sign, X509_CRL_sign_ctx -
sign certificate, certificate request, or CRL signature
"SYNOPSIS"
Header "SYNOPSIS" .Vb 1
#include <openssl/x509.h>
\&
int X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md);
int X509_sign_ctx(X509 *x, EVP_MD_CTX *ctx);
\&
int X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md);
int X509_REQ_sign_ctx(X509_REQ *x, EVP_MD_CTX *ctx);
\&
int X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md);
int X509_CRL_sign_ctx(X509_CRL *x, EVP_MD_CTX *ctx);
.Ve
"DESCRIPTION"
Header "DESCRIPTION" \fBX509_sign() signs certificate x using private key pkey and message
digest md and sets the signature in x. X509_sign_ctx() also signs
certificate x but uses the parameters contained in digest context ctx.
\fBX509_REQ_sign(), X509_REQ_sign_ctx(), \fBX509_CRL_sign(), and X509_CRL_sign_ctx() sign certificate requests and CRLs, respectively.
"NOTES"
Header "NOTES" \fBX509_sign_ctx() is used where the default parameters for the corresponding
public key and digest are not suitable. It can be used to sign keys using
RSA-PSS for example.
For efficiency reasons and to work around \s-1ASN.1\s0 encoding issues the encoding of the signed portion of a certificate, certificate request and \s-1CRL\s0 is cached internally. If the signed portion of the structure is modified the encoding is not always updated meaning a stale version is sometimes used. This is not normally a problem because modifying the signed portion will invalidate the signature and signing will always update the encoding.
"RETURN VALUES"
Header "RETURN VALUES" All functions return the size of the signature
in bytes for success and zero for failure.
"SEE ALSO"
Header "SEE ALSO" \fBERR_get_error\|(3),
\fBX509_NAME_add_entry_by_txt\|(3),
\fBX509_new\|(3),
\fBX509_verify_cert\|(3),
\fBX509_verify\|(3),
\fBX509_REQ_verify_ex\|(3), X509_REQ_verify\|(3),
\fBX509_CRL_verify\|(3)
"HISTORY"
Header "HISTORY" The X509_sign(), X509_REQ_sign() and X509_CRL_sign() functions are
available in all versions of OpenSSL.
The X509_sign_ctx(), X509_REQ_sign_ctx() and X509_CRL_sign_ctx() functions were added in OpenSSL 1.0.1.
"COPYRIGHT"
Header "COPYRIGHT" Copyright 2015-2020 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (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>.