diff options
Diffstat (limited to 'secure/lib/libcrypto/man/man3/SSL_CTX_set1_sigalgs.3')
| -rw-r--r-- | secure/lib/libcrypto/man/man3/SSL_CTX_set1_sigalgs.3 | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/secure/lib/libcrypto/man/man3/SSL_CTX_set1_sigalgs.3 b/secure/lib/libcrypto/man/man3/SSL_CTX_set1_sigalgs.3 new file mode 100644 index 000000000000..9dd61cd9bc97 --- /dev/null +++ b/secure/lib/libcrypto/man/man3/SSL_CTX_set1_sigalgs.3 @@ -0,0 +1,249 @@ +.\" Automatically generated by Pod::Man 4.11 (Pod::Simple 3.39) +.\" +.\" 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 "SSL_CTX_SET1_SIGALGS 3" +.TH SSL_CTX_SET1_SIGALGS 3 "2019-09-10" "1.1.1d" "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" +SSL_CTX_set1_sigalgs, SSL_set1_sigalgs, SSL_CTX_set1_sigalgs_list, SSL_set1_sigalgs_list, SSL_CTX_set1_client_sigalgs, SSL_set1_client_sigalgs, SSL_CTX_set1_client_sigalgs_list, SSL_set1_client_sigalgs_list \- set supported signature algorithms +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +.Vb 1 +\& #include <openssl/ssl.h> +\& +\& long SSL_CTX_set1_sigalgs(SSL_CTX *ctx, const int *slist, long slistlen); +\& long SSL_set1_sigalgs(SSL *ssl, const int *slist, long slistlen); +\& long SSL_CTX_set1_sigalgs_list(SSL_CTX *ctx, const char *str); +\& long SSL_set1_sigalgs_list(SSL *ssl, const char *str); +\& +\& long SSL_CTX_set1_client_sigalgs(SSL_CTX *ctx, const int *slist, long slistlen); +\& long SSL_set1_client_sigalgs(SSL *ssl, const int *slist, long slistlen); +\& long SSL_CTX_set1_client_sigalgs_list(SSL_CTX *ctx, const char *str); +\& long SSL_set1_client_sigalgs_list(SSL *ssl, const char *str); +.Ve +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +\&\fBSSL_CTX_set1_sigalgs()\fR and \fBSSL_set1_sigalgs()\fR set the supported signature +algorithms for \fBctx\fR or \fBssl\fR. The array \fBslist\fR of length \fBslistlen\fR +must consist of pairs of NIDs corresponding to digest and public key +algorithms. +.PP +\&\fBSSL_CTX_set1_sigalgs_list()\fR and \fBSSL_set1_sigalgs_list()\fR set the supported +signature algorithms for \fBctx\fR or \fBssl\fR. The \fBstr\fR parameter +must be a null terminated string consisting of a colon separated list of +elements, where each element is either a combination of a public key +algorithm and a digest separated by \fB+\fR, or a \s-1TLS 1\s0.3\-style named +SignatureScheme such as rsa_pss_pss_sha256. +.PP +\&\fBSSL_CTX_set1_client_sigalgs()\fR, \fBSSL_set1_client_sigalgs()\fR, +\&\fBSSL_CTX_set1_client_sigalgs_list()\fR and \fBSSL_set1_client_sigalgs_list()\fR set +signature algorithms related to client authentication, otherwise they are +identical to \fBSSL_CTX_set1_sigalgs()\fR, \fBSSL_set1_sigalgs()\fR, +\&\fBSSL_CTX_set1_sigalgs_list()\fR and \fBSSL_set1_sigalgs_list()\fR. +.PP +All these functions are implemented as macros. The signature algorithm +parameter (integer array or string) is not freed: the application should +free it, if necessary. +.SH "NOTES" +.IX Header "NOTES" +If an application wishes to allow the setting of signature algorithms +as one of many user configurable options it should consider using the more +flexible \s-1SSL_CONF API\s0 instead. +.PP +The signature algorithms set by a client are used directly in the supported +signature algorithm in the client hello message. +.PP +The supported signature algorithms set by a server are not sent to the +client but are used to determine the set of shared signature algorithms +and (if server preferences are set with \s-1SSL_OP_CIPHER_SERVER_PREFERENCE\s0) +their order. +.PP +The client authentication signature algorithms set by a server are sent +in a certificate request message if client authentication is enabled, +otherwise they are unused. +.PP +Similarly client authentication signature algorithms set by a client are +used to determined the set of client authentication shared signature +algorithms. +.PP +Signature algorithms will neither be advertised nor used if the security level +prohibits them (for example \s-1SHA1\s0 if the security level is 4 or more). +.PP +Currently the NID_md5, NID_sha1, NID_sha224, NID_sha256, NID_sha384 and +NID_sha512 digest NIDs are supported and the public key algorithm NIDs +\&\s-1EVP_PKEY_RSA, EVP_PKEY_RSA_PSS, EVP_PKEY_DSA\s0 and \s-1EVP_PKEY_EC.\s0 +.PP +The short or long name values for digests can be used in a string (for +example \*(L"\s-1MD5\*(R", \*(L"SHA1\*(R", \*(L"SHA224\*(R", \*(L"SHA256\*(R", \*(L"SHA384\*(R", \*(L"SHA512\*(R"\s0) and +the public key algorithm strings \*(L"\s-1RSA\*(R",\s0 \*(L"RSA-PSS\*(R", \*(L"\s-1DSA\*(R"\s0 or \*(L"\s-1ECDSA\*(R".\s0 +.PP +The \s-1TLS 1.3\s0 signature scheme names (such as \*(L"rsa_pss_pss_sha256\*(R") can also +be used with the \fB_list\fR forms of the \s-1API.\s0 +.PP +The use of \s-1MD5\s0 as a digest is strongly discouraged due to security weaknesses. +.SH "RETURN VALUES" +.IX Header "RETURN VALUES" +All these functions return 1 for success and 0 for failure. +.SH "EXAMPLES" +.IX Header "EXAMPLES" +Set supported signature algorithms to \s-1SHA256\s0 with \s-1ECDSA\s0 and \s-1SHA256\s0 with \s-1RSA\s0 +using an array: +.PP +.Vb 1 +\& const int slist[] = {NID_sha256, EVP_PKEY_EC, NID_sha256, EVP_PKEY_RSA}; +\& +\& SSL_CTX_set1_sigalgs(ctx, slist, 4); +.Ve +.PP +Set supported signature algorithms to \s-1SHA256\s0 with \s-1ECDSA\s0 and \s-1SHA256\s0 with \s-1RSA\s0 +using a string: +.PP +.Vb 1 +\& SSL_CTX_set1_sigalgs_list(ctx, "ECDSA+SHA256:RSA+SHA256"); +.Ve +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fBssl\fR\|(7), \fBSSL_get_shared_sigalgs\fR\|(3), +\&\fBSSL_CONF_CTX_new\fR\|(3) +.SH "COPYRIGHT" +.IX Header "COPYRIGHT" +Copyright 2015\-2019 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>. |