diff options
Diffstat (limited to 'secure/usr.bin/openssl/man/ciphers.1')
| -rw-r--r-- | secure/usr.bin/openssl/man/ciphers.1 | 730 |
1 files changed, 730 insertions, 0 deletions
diff --git a/secure/usr.bin/openssl/man/ciphers.1 b/secure/usr.bin/openssl/man/ciphers.1 new file mode 100644 index 0000000..e4dd7ed --- /dev/null +++ b/secure/usr.bin/openssl/man/ciphers.1 @@ -0,0 +1,730 @@ +.\" Automatically generated by Pod::Man 2.28 (Pod::Simple 3.30) +.\" +.\" 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 turned on, 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 "CIPHERS 1" +.TH CIPHERS 1 "2016-03-01" "1.0.2g" "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" +ciphers \- SSL cipher display and cipher list tool. +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +\&\fBopenssl\fR \fBciphers\fR +[\fB\-v\fR] +[\fB\-V\fR] +[\fB\-ssl2\fR] +[\fB\-ssl3\fR] +[\fB\-tls1\fR] +[\fBcipherlist\fR] +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +The \fBciphers\fR command converts textual OpenSSL cipher lists into ordered +\&\s-1SSL\s0 cipher preference lists. It can be used as a test tool to determine +the appropriate cipherlist. +.SH "COMMAND OPTIONS" +.IX Header "COMMAND OPTIONS" +.IP "\fB\-v\fR" 4 +.IX Item "-v" +Verbose option. List ciphers with a complete description of +protocol version (SSLv2 or SSLv3; the latter includes \s-1TLS\s0), key exchange, +authentication, encryption and mac algorithms used along with any key size +restrictions and whether the algorithm is classed as an \*(L"export\*(R" cipher. +Note that without the \fB\-v\fR option, ciphers may seem to appear twice +in a cipher list; this is when similar ciphers are available for +\&\s-1SSL\s0 v2 and for \s-1SSL\s0 v3/TLS v1. +.IP "\fB\-V\fR" 4 +.IX Item "-V" +Like \fB\-v\fR, but include cipher suite codes in output (hex format). +.IP "\fB\-ssl3\fR, \fB\-tls1\fR" 4 +.IX Item "-ssl3, -tls1" +This lists ciphers compatible with any of SSLv3, TLSv1, TLSv1.1 or TLSv1.2. +.IP "\fB\-ssl2\fR" 4 +.IX Item "-ssl2" +Only include SSLv2 ciphers. +.IP "\fB\-h\fR, \fB\-?\fR" 4 +.IX Item "-h, -?" +Print a brief usage message. +.IP "\fBcipherlist\fR" 4 +.IX Item "cipherlist" +A cipher list to convert to a cipher preference list. If it is not included +then the default cipher list will be used. The format is described below. +.SH "CIPHER LIST FORMAT" +.IX Header "CIPHER LIST FORMAT" +The cipher list consists of one or more \fIcipher strings\fR separated by colons. +Commas or spaces are also acceptable separators but colons are normally used. +.PP +The actual cipher string can take several different forms. +.PP +It can consist of a single cipher suite such as \fB\s-1RC4\-SHA\s0\fR. +.PP +It can represent a list of cipher suites containing a certain algorithm, or +cipher suites of a certain type. For example \fB\s-1SHA1\s0\fR represents all ciphers +suites using the digest algorithm \s-1SHA1\s0 and \fBSSLv3\fR represents all \s-1SSL\s0 v3 +algorithms. +.PP +Lists of cipher suites can be combined in a single cipher string using the +\&\fB+\fR character. This is used as a logical \fBand\fR operation. For example +\&\fB\s-1SHA1+DES\s0\fR represents all cipher suites containing the \s-1SHA1 \s0\fBand\fR the \s-1DES\s0 +algorithms. +.PP +Each cipher string can be optionally preceded by the characters \fB!\fR, +\&\fB\-\fR or \fB+\fR. +.PP +If \fB!\fR is used then the ciphers are permanently deleted from the list. +The ciphers deleted can never reappear in the list even if they are +explicitly stated. +.PP +If \fB\-\fR is used then the ciphers are deleted from the list, but some or +all of the ciphers can be added again by later options. +.PP +If \fB+\fR is used then the ciphers are moved to the end of the list. This +option doesn't add any new ciphers it just moves matching existing ones. +.PP +If none of these characters is present then the string is just interpreted +as a list of ciphers to be appended to the current preference list. If the +list includes any ciphers already present they will be ignored: that is they +will not moved to the end of the list. +.PP +Additionally the cipher string \fB\f(CB@STRENGTH\fB\fR can be used at any point to sort +the current cipher list in order of encryption algorithm key length. +.SH "CIPHER STRINGS" +.IX Header "CIPHER STRINGS" +The following is a list of all permitted cipher strings and their meanings. +.IP "\fB\s-1DEFAULT\s0\fR" 4 +.IX Item "DEFAULT" +The default cipher list. +This is determined at compile time and is normally +\&\fB\s-1ALL:\s0!EXPORT:!aNULL:!eNULL:!SSLv2\fR. +When used, this must be the first cipherstring specified. +.IP "\fB\s-1COMPLEMENTOFDEFAULT\s0\fR" 4 +.IX Item "COMPLEMENTOFDEFAULT" +the ciphers included in \fB\s-1ALL\s0\fR, but not enabled by default. Currently +this is \fB\s-1ADH\s0\fR and \fB\s-1AECDH\s0\fR. Note that this rule does not cover \fBeNULL\fR, +which is not included by \fB\s-1ALL\s0\fR (use \fB\s-1COMPLEMENTOFALL\s0\fR if necessary). +.IP "\fB\s-1ALL\s0\fR" 4 +.IX Item "ALL" +all cipher suites except the \fBeNULL\fR ciphers which must be explicitly enabled; +as of OpenSSL, the \fB\s-1ALL\s0\fR cipher suites are reasonably ordered by default +.IP "\fB\s-1COMPLEMENTOFALL\s0\fR" 4 +.IX Item "COMPLEMENTOFALL" +the cipher suites not enabled by \fB\s-1ALL\s0\fR, currently being \fBeNULL\fR. +.IP "\fB\s-1HIGH\s0\fR" 4 +.IX Item "HIGH" +\&\*(L"high\*(R" encryption cipher suites. This currently means those with key lengths larger +than 128 bits, and some cipher suites with 128\-bit keys. +.IP "\fB\s-1MEDIUM\s0\fR" 4 +.IX Item "MEDIUM" +\&\*(L"medium\*(R" encryption cipher suites, currently some of those using 128 bit encryption. +.IP "\fB\s-1LOW\s0\fR" 4 +.IX Item "LOW" +Low strength encryption cipher suites, currently those using 64 or 56 bit +encryption algorithms but excluding export cipher suites. +As of OpenSSL 1.0.2g, these are disabled in default builds. +.IP "\fB\s-1EXP\s0\fR, \fB\s-1EXPORT\s0\fR" 4 +.IX Item "EXP, EXPORT" +Export strength encryption algorithms. Including 40 and 56 bits algorithms. +As of OpenSSL 1.0.2g, these are disabled in default builds. +.IP "\fB\s-1EXPORT40\s0\fR" 4 +.IX Item "EXPORT40" +40\-bit export encryption algorithms +As of OpenSSL 1.0.2g, these are disabled in default builds. +.IP "\fB\s-1EXPORT56\s0\fR" 4 +.IX Item "EXPORT56" +56\-bit export encryption algorithms. In OpenSSL 0.9.8c and later the set of +56 bit export ciphers is empty unless OpenSSL has been explicitly configured +with support for experimental ciphers. +As of OpenSSL 1.0.2g, these are disabled in default builds. +.IP "\fBeNULL\fR, \fB\s-1NULL\s0\fR" 4 +.IX Item "eNULL, NULL" +The \*(L"\s-1NULL\*(R"\s0 ciphers that is those offering no encryption. Because these offer no +encryption at all and are a security risk they are not enabled via either the +\&\fB\s-1DEFAULT\s0\fR or \fB\s-1ALL\s0\fR cipher strings. +Be careful when building cipherlists out of lower-level primitives such as +\&\fBkRSA\fR or \fBaECDSA\fR as these do overlap with the \fBeNULL\fR ciphers. +When in doubt, include \fB!eNULL\fR in your cipherlist. +.IP "\fBaNULL\fR" 4 +.IX Item "aNULL" +The cipher suites offering no authentication. This is currently the anonymous +\&\s-1DH\s0 algorithms and anonymous \s-1ECDH\s0 algorithms. These cipher suites are vulnerable +to a \*(L"man in the middle\*(R" attack and so their use is normally discouraged. +These are excluded from the \fB\s-1DEFAULT\s0\fR ciphers, but included in the \fB\s-1ALL\s0\fR +ciphers. +Be careful when building cipherlists out of lower-level primitives such as +\&\fBkDHE\fR or \fB\s-1AES\s0\fR as these do overlap with the \fBaNULL\fR ciphers. +When in doubt, include \fB!aNULL\fR in your cipherlist. +.IP "\fBkRSA\fR, \fB\s-1RSA\s0\fR" 4 +.IX Item "kRSA, RSA" +cipher suites using \s-1RSA\s0 key exchange. +.IP "\fBkDHr\fR, \fBkDHd\fR, \fBkDH\fR" 4 +.IX Item "kDHr, kDHd, kDH" +cipher suites using \s-1DH\s0 key agreement and \s-1DH\s0 certificates signed by CAs with \s-1RSA\s0 +and \s-1DSS\s0 keys or either respectively. +.IP "\fBkDHE\fR, \fBkEDH\fR" 4 +.IX Item "kDHE, kEDH" +cipher suites using ephemeral \s-1DH\s0 key agreement, including anonymous cipher +suites. +.IP "\fB\s-1DHE\s0\fR, \fB\s-1EDH\s0\fR" 4 +.IX Item "DHE, EDH" +cipher suites using authenticated ephemeral \s-1DH\s0 key agreement. +.IP "\fB\s-1ADH\s0\fR" 4 +.IX Item "ADH" +anonymous \s-1DH\s0 cipher suites, note that this does not include anonymous Elliptic +Curve \s-1DH \s0(\s-1ECDH\s0) cipher suites. +.IP "\fB\s-1DH\s0\fR" 4 +.IX Item "DH" +cipher suites using \s-1DH,\s0 including anonymous \s-1DH,\s0 ephemeral \s-1DH\s0 and fixed \s-1DH.\s0 +.IP "\fBkECDHr\fR, \fBkECDHe\fR, \fBkECDH\fR" 4 +.IX Item "kECDHr, kECDHe, kECDH" +cipher suites using fixed \s-1ECDH\s0 key agreement signed by CAs with \s-1RSA\s0 and \s-1ECDSA\s0 +keys or either respectively. +.IP "\fBkECDHE\fR, \fBkEECDH\fR" 4 +.IX Item "kECDHE, kEECDH" +cipher suites using ephemeral \s-1ECDH\s0 key agreement, including anonymous +cipher suites. +.IP "\fB\s-1ECDHE\s0\fR, \fB\s-1EECDH\s0\fR" 4 +.IX Item "ECDHE, EECDH" +cipher suites using authenticated ephemeral \s-1ECDH\s0 key agreement. +.IP "\fB\s-1AECDH\s0\fR" 4 +.IX Item "AECDH" +anonymous Elliptic Curve Diffie Hellman cipher suites. +.IP "\fB\s-1ECDH\s0\fR" 4 +.IX Item "ECDH" +cipher suites using \s-1ECDH\s0 key exchange, including anonymous, ephemeral and +fixed \s-1ECDH.\s0 +.IP "\fBaRSA\fR" 4 +.IX Item "aRSA" +cipher suites using \s-1RSA\s0 authentication, i.e. the certificates carry \s-1RSA\s0 keys. +.IP "\fBaDSS\fR, \fB\s-1DSS\s0\fR" 4 +.IX Item "aDSS, DSS" +cipher suites using \s-1DSS\s0 authentication, i.e. the certificates carry \s-1DSS\s0 keys. +.IP "\fBaDH\fR" 4 +.IX Item "aDH" +cipher suites effectively using \s-1DH\s0 authentication, i.e. the certificates carry +\&\s-1DH\s0 keys. +.IP "\fBaECDH\fR" 4 +.IX Item "aECDH" +cipher suites effectively using \s-1ECDH\s0 authentication, i.e. the certificates +carry \s-1ECDH\s0 keys. +.IP "\fBaECDSA\fR, \fB\s-1ECDSA\s0\fR" 4 +.IX Item "aECDSA, ECDSA" +cipher suites using \s-1ECDSA\s0 authentication, i.e. the certificates carry \s-1ECDSA\s0 +keys. +.IP "\fBkFZA\fR, \fBaFZA\fR, \fBeFZA\fR, \fB\s-1FZA\s0\fR" 4 +.IX Item "kFZA, aFZA, eFZA, FZA" +ciphers suites using \s-1FORTEZZA\s0 key exchange, authentication, encryption or all +\&\s-1FORTEZZA\s0 algorithms. Not implemented. +.IP "\fBTLSv1.2\fR, \fBTLSv1\fR, \fBSSLv3\fR, \fBSSLv2\fR" 4 +.IX Item "TLSv1.2, TLSv1, SSLv3, SSLv2" +\&\s-1TLS\s0 v1.2, \s-1TLS\s0 v1.0, \s-1SSL\s0 v3.0 or \s-1SSL\s0 v2.0 cipher suites respectively. Note: +there are no ciphersuites specific to \s-1TLS\s0 v1.1. +.IP "\fB\s-1AES128\s0\fR, \fB\s-1AES256\s0\fR, \fB\s-1AES\s0\fR" 4 +.IX Item "AES128, AES256, AES" +cipher suites using 128 bit \s-1AES, 256\s0 bit \s-1AES\s0 or either 128 or 256 bit \s-1AES.\s0 +.IP "\fB\s-1AESGCM\s0\fR" 4 +.IX Item "AESGCM" +\&\s-1AES\s0 in Galois Counter Mode (\s-1GCM\s0): these ciphersuites are only supported +in \s-1TLS\s0 v1.2. +.IP "\fB\s-1CAMELLIA128\s0\fR, \fB\s-1CAMELLIA256\s0\fR, \fB\s-1CAMELLIA\s0\fR" 4 +.IX Item "CAMELLIA128, CAMELLIA256, CAMELLIA" +cipher suites using 128 bit \s-1CAMELLIA, 256\s0 bit \s-1CAMELLIA\s0 or either 128 or 256 bit +\&\s-1CAMELLIA.\s0 +.IP "\fB3DES\fR" 4 +.IX Item "3DES" +cipher suites using triple \s-1DES.\s0 +.IP "\fB\s-1DES\s0\fR" 4 +.IX Item "DES" +cipher suites using \s-1DES \s0(not triple \s-1DES\s0). +.IP "\fB\s-1RC4\s0\fR" 4 +.IX Item "RC4" +cipher suites using \s-1RC4.\s0 +.IP "\fB\s-1RC2\s0\fR" 4 +.IX Item "RC2" +cipher suites using \s-1RC2.\s0 +.IP "\fB\s-1IDEA\s0\fR" 4 +.IX Item "IDEA" +cipher suites using \s-1IDEA.\s0 +.IP "\fB\s-1SEED\s0\fR" 4 +.IX Item "SEED" +cipher suites using \s-1SEED.\s0 +.IP "\fB\s-1MD5\s0\fR" 4 +.IX Item "MD5" +cipher suites using \s-1MD5.\s0 +.IP "\fB\s-1SHA1\s0\fR, \fB\s-1SHA\s0\fR" 4 +.IX Item "SHA1, SHA" +cipher suites using \s-1SHA1.\s0 +.IP "\fB\s-1SHA256\s0\fR, \fB\s-1SHA384\s0\fR" 4 +.IX Item "SHA256, SHA384" +ciphersuites using \s-1SHA256\s0 or \s-1SHA384.\s0 +.IP "\fBaGOST\fR" 4 +.IX Item "aGOST" +cipher suites using \s-1GOST R 34.10 \s0(either 2001 or 94) for authenticaction +(needs an engine supporting \s-1GOST\s0 algorithms). +.IP "\fBaGOST01\fR" 4 +.IX Item "aGOST01" +cipher suites using \s-1GOST R 34.10\-2001\s0 authentication. +.IP "\fBaGOST94\fR" 4 +.IX Item "aGOST94" +cipher suites using \s-1GOST R 34.10\-94\s0 authentication (note that R 34.10\-94 +standard has been expired so use \s-1GOST R 34.10\-2001\s0) +.IP "\fBkGOST\fR" 4 +.IX Item "kGOST" +cipher suites, using \s-1VKO 34.10\s0 key exchange, specified in the \s-1RFC 4357.\s0 +.IP "\fB\s-1GOST94\s0\fR" 4 +.IX Item "GOST94" +cipher suites, using \s-1HMAC\s0 based on \s-1GOST R 34.11\-94.\s0 +.IP "\fB\s-1GOST89MAC\s0\fR" 4 +.IX Item "GOST89MAC" +cipher suites using \s-1GOST 28147\-89 MAC \s0\fBinstead of\fR \s-1HMAC.\s0 +.IP "\fB\s-1PSK\s0\fR" 4 +.IX Item "PSK" +cipher suites using pre-shared keys (\s-1PSK\s0). +.IP "\fB\s-1SUITEB128\s0\fR, \fB\s-1SUITEB128ONLY\s0\fR, \fB\s-1SUITEB192\s0\fR" 4 +.IX Item "SUITEB128, SUITEB128ONLY, SUITEB192" +enables suite B mode operation using 128 (permitting 192 bit mode by peer) +128 bit (not permitting 192 bit by peer) or 192 bit level of security +respectively. If used these cipherstrings should appear first in the cipher +list and anything after them is ignored. Setting Suite B mode has additional +consequences required to comply with \s-1RFC6460.\s0 In particular the supported +signature algorithms is reduced to support only \s-1ECDSA\s0 and \s-1SHA256\s0 or \s-1SHA384,\s0 +only the elliptic curves P\-256 and P\-384 can be used and only the two suite B +compliant ciphersuites (\s-1ECDHE\-ECDSA\-AES128\-GCM\-SHA256\s0 and +\&\s-1ECDHE\-ECDSA\-AES256\-GCM\-SHA384\s0) are permissible. +.SH "CIPHER SUITE NAMES" +.IX Header "CIPHER SUITE NAMES" +The following lists give the \s-1SSL\s0 or \s-1TLS\s0 cipher suites names from the +relevant specification and their OpenSSL equivalents. It should be noted, +that several cipher suite names do not include the authentication used, +e.g. \s-1DES\-CBC3\-SHA.\s0 In these cases, \s-1RSA\s0 authentication is used. +.SS "\s-1SSL\s0 v3.0 cipher suites." +.IX Subsection "SSL v3.0 cipher suites." +.Vb 10 +\& SSL_RSA_WITH_NULL_MD5 NULL\-MD5 +\& SSL_RSA_WITH_NULL_SHA NULL\-SHA +\& SSL_RSA_EXPORT_WITH_RC4_40_MD5 EXP\-RC4\-MD5 +\& SSL_RSA_WITH_RC4_128_MD5 RC4\-MD5 +\& SSL_RSA_WITH_RC4_128_SHA RC4\-SHA +\& SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5 EXP\-RC2\-CBC\-MD5 +\& SSL_RSA_WITH_IDEA_CBC_SHA IDEA\-CBC\-SHA +\& SSL_RSA_EXPORT_WITH_DES40_CBC_SHA EXP\-DES\-CBC\-SHA +\& SSL_RSA_WITH_DES_CBC_SHA DES\-CBC\-SHA +\& SSL_RSA_WITH_3DES_EDE_CBC_SHA DES\-CBC3\-SHA +\& +\& SSL_DH_DSS_WITH_DES_CBC_SHA DH\-DSS\-DES\-CBC\-SHA +\& SSL_DH_DSS_WITH_3DES_EDE_CBC_SHA DH\-DSS\-DES\-CBC3\-SHA +\& SSL_DH_RSA_WITH_DES_CBC_SHA DH\-RSA\-DES\-CBC\-SHA +\& SSL_DH_RSA_WITH_3DES_EDE_CBC_SHA DH\-RSA\-DES\-CBC3\-SHA +\& SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA EXP\-EDH\-DSS\-DES\-CBC\-SHA +\& SSL_DHE_DSS_WITH_DES_CBC_SHA EDH\-DSS\-CBC\-SHA +\& SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA EDH\-DSS\-DES\-CBC3\-SHA +\& SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA EXP\-EDH\-RSA\-DES\-CBC\-SHA +\& SSL_DHE_RSA_WITH_DES_CBC_SHA EDH\-RSA\-DES\-CBC\-SHA +\& SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA EDH\-RSA\-DES\-CBC3\-SHA +\& +\& SSL_DH_anon_EXPORT_WITH_RC4_40_MD5 EXP\-ADH\-RC4\-MD5 +\& SSL_DH_anon_WITH_RC4_128_MD5 ADH\-RC4\-MD5 +\& SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA EXP\-ADH\-DES\-CBC\-SHA +\& SSL_DH_anon_WITH_DES_CBC_SHA ADH\-DES\-CBC\-SHA +\& SSL_DH_anon_WITH_3DES_EDE_CBC_SHA ADH\-DES\-CBC3\-SHA +\& +\& SSL_FORTEZZA_KEA_WITH_NULL_SHA Not implemented. +\& SSL_FORTEZZA_KEA_WITH_FORTEZZA_CBC_SHA Not implemented. +\& SSL_FORTEZZA_KEA_WITH_RC4_128_SHA Not implemented. +.Ve +.SS "\s-1TLS\s0 v1.0 cipher suites." +.IX Subsection "TLS v1.0 cipher suites." +.Vb 10 +\& TLS_RSA_WITH_NULL_MD5 NULL\-MD5 +\& TLS_RSA_WITH_NULL_SHA NULL\-SHA +\& TLS_RSA_EXPORT_WITH_RC4_40_MD5 EXP\-RC4\-MD5 +\& TLS_RSA_WITH_RC4_128_MD5 RC4\-MD5 +\& TLS_RSA_WITH_RC4_128_SHA RC4\-SHA +\& TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5 EXP\-RC2\-CBC\-MD5 +\& TLS_RSA_WITH_IDEA_CBC_SHA IDEA\-CBC\-SHA +\& TLS_RSA_EXPORT_WITH_DES40_CBC_SHA EXP\-DES\-CBC\-SHA +\& TLS_RSA_WITH_DES_CBC_SHA DES\-CBC\-SHA +\& TLS_RSA_WITH_3DES_EDE_CBC_SHA DES\-CBC3\-SHA +\& +\& TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA Not implemented. +\& TLS_DH_DSS_WITH_DES_CBC_SHA Not implemented. +\& TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA Not implemented. +\& TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA Not implemented. +\& TLS_DH_RSA_WITH_DES_CBC_SHA Not implemented. +\& TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA Not implemented. +\& TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA EXP\-EDH\-DSS\-DES\-CBC\-SHA +\& TLS_DHE_DSS_WITH_DES_CBC_SHA EDH\-DSS\-CBC\-SHA +\& TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA EDH\-DSS\-DES\-CBC3\-SHA +\& TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA EXP\-EDH\-RSA\-DES\-CBC\-SHA +\& TLS_DHE_RSA_WITH_DES_CBC_SHA EDH\-RSA\-DES\-CBC\-SHA +\& TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA EDH\-RSA\-DES\-CBC3\-SHA +\& +\& TLS_DH_anon_EXPORT_WITH_RC4_40_MD5 EXP\-ADH\-RC4\-MD5 +\& TLS_DH_anon_WITH_RC4_128_MD5 ADH\-RC4\-MD5 +\& TLS_DH_anon_EXPORT_WITH_DES40_CBC_SHA EXP\-ADH\-DES\-CBC\-SHA +\& TLS_DH_anon_WITH_DES_CBC_SHA ADH\-DES\-CBC\-SHA +\& TLS_DH_anon_WITH_3DES_EDE_CBC_SHA ADH\-DES\-CBC3\-SHA +.Ve +.SS "\s-1AES\s0 ciphersuites from \s-1RFC3268,\s0 extending \s-1TLS\s0 v1.0" +.IX Subsection "AES ciphersuites from RFC3268, extending TLS v1.0" +.Vb 2 +\& TLS_RSA_WITH_AES_128_CBC_SHA AES128\-SHA +\& TLS_RSA_WITH_AES_256_CBC_SHA AES256\-SHA +\& +\& TLS_DH_DSS_WITH_AES_128_CBC_SHA DH\-DSS\-AES128\-SHA +\& TLS_DH_DSS_WITH_AES_256_CBC_SHA DH\-DSS\-AES256\-SHA +\& TLS_DH_RSA_WITH_AES_128_CBC_SHA DH\-RSA\-AES128\-SHA +\& TLS_DH_RSA_WITH_AES_256_CBC_SHA DH\-RSA\-AES256\-SHA +\& +\& TLS_DHE_DSS_WITH_AES_128_CBC_SHA DHE\-DSS\-AES128\-SHA +\& TLS_DHE_DSS_WITH_AES_256_CBC_SHA DHE\-DSS\-AES256\-SHA +\& TLS_DHE_RSA_WITH_AES_128_CBC_SHA DHE\-RSA\-AES128\-SHA +\& TLS_DHE_RSA_WITH_AES_256_CBC_SHA DHE\-RSA\-AES256\-SHA +\& +\& TLS_DH_anon_WITH_AES_128_CBC_SHA ADH\-AES128\-SHA +\& TLS_DH_anon_WITH_AES_256_CBC_SHA ADH\-AES256\-SHA +.Ve +.SS "Camellia ciphersuites from \s-1RFC4132,\s0 extending \s-1TLS\s0 v1.0" +.IX Subsection "Camellia ciphersuites from RFC4132, extending TLS v1.0" +.Vb 2 +\& TLS_RSA_WITH_CAMELLIA_128_CBC_SHA CAMELLIA128\-SHA +\& TLS_RSA_WITH_CAMELLIA_256_CBC_SHA CAMELLIA256\-SHA +\& +\& TLS_DH_DSS_WITH_CAMELLIA_128_CBC_SHA DH\-DSS\-CAMELLIA128\-SHA +\& TLS_DH_DSS_WITH_CAMELLIA_256_CBC_SHA DH\-DSS\-CAMELLIA256\-SHA +\& TLS_DH_RSA_WITH_CAMELLIA_128_CBC_SHA DH\-RSA\-CAMELLIA128\-SHA +\& TLS_DH_RSA_WITH_CAMELLIA_256_CBC_SHA DH\-RSA\-CAMELLIA256\-SHA +\& +\& TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA DHE\-DSS\-CAMELLIA128\-SHA +\& TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA DHE\-DSS\-CAMELLIA256\-SHA +\& TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA DHE\-RSA\-CAMELLIA128\-SHA +\& TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA DHE\-RSA\-CAMELLIA256\-SHA +\& +\& TLS_DH_anon_WITH_CAMELLIA_128_CBC_SHA ADH\-CAMELLIA128\-SHA +\& TLS_DH_anon_WITH_CAMELLIA_256_CBC_SHA ADH\-CAMELLIA256\-SHA +.Ve +.SS "\s-1SEED\s0 ciphersuites from \s-1RFC4162,\s0 extending \s-1TLS\s0 v1.0" +.IX Subsection "SEED ciphersuites from RFC4162, extending TLS v1.0" +.Vb 1 +\& TLS_RSA_WITH_SEED_CBC_SHA SEED\-SHA +\& +\& TLS_DH_DSS_WITH_SEED_CBC_SHA DH\-DSS\-SEED\-SHA +\& TLS_DH_RSA_WITH_SEED_CBC_SHA DH\-RSA\-SEED\-SHA +\& +\& TLS_DHE_DSS_WITH_SEED_CBC_SHA DHE\-DSS\-SEED\-SHA +\& TLS_DHE_RSA_WITH_SEED_CBC_SHA DHE\-RSA\-SEED\-SHA +\& +\& TLS_DH_anon_WITH_SEED_CBC_SHA ADH\-SEED\-SHA +.Ve +.SS "\s-1GOST\s0 ciphersuites from draft-chudov-cryptopro-cptls, extending \s-1TLS\s0 v1.0" +.IX Subsection "GOST ciphersuites from draft-chudov-cryptopro-cptls, extending TLS v1.0" +Note: these ciphers require an engine which including \s-1GOST\s0 cryptographic +algorithms, such as the \fBccgost\fR engine, included in the OpenSSL distribution. +.PP +.Vb 4 +\& TLS_GOSTR341094_WITH_28147_CNT_IMIT GOST94\-GOST89\-GOST89 +\& TLS_GOSTR341001_WITH_28147_CNT_IMIT GOST2001\-GOST89\-GOST89 +\& TLS_GOSTR341094_WITH_NULL_GOSTR3411 GOST94\-NULL\-GOST94 +\& TLS_GOSTR341001_WITH_NULL_GOSTR3411 GOST2001\-NULL\-GOST94 +.Ve +.SS "Additional Export 1024 and other cipher suites" +.IX Subsection "Additional Export 1024 and other cipher suites" +Note: these ciphers can also be used in \s-1SSL\s0 v3. +.PP +.Vb 5 +\& TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA EXP1024\-DES\-CBC\-SHA +\& TLS_RSA_EXPORT1024_WITH_RC4_56_SHA EXP1024\-RC4\-SHA +\& TLS_DHE_DSS_EXPORT1024_WITH_DES_CBC_SHA EXP1024\-DHE\-DSS\-DES\-CBC\-SHA +\& TLS_DHE_DSS_EXPORT1024_WITH_RC4_56_SHA EXP1024\-DHE\-DSS\-RC4\-SHA +\& TLS_DHE_DSS_WITH_RC4_128_SHA DHE\-DSS\-RC4\-SHA +.Ve +.SS "Elliptic curve cipher suites." +.IX Subsection "Elliptic curve cipher suites." +.Vb 5 +\& TLS_ECDH_RSA_WITH_NULL_SHA ECDH\-RSA\-NULL\-SHA +\& TLS_ECDH_RSA_WITH_RC4_128_SHA ECDH\-RSA\-RC4\-SHA +\& TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA ECDH\-RSA\-DES\-CBC3\-SHA +\& TLS_ECDH_RSA_WITH_AES_128_CBC_SHA ECDH\-RSA\-AES128\-SHA +\& TLS_ECDH_RSA_WITH_AES_256_CBC_SHA ECDH\-RSA\-AES256\-SHA +\& +\& TLS_ECDH_ECDSA_WITH_NULL_SHA ECDH\-ECDSA\-NULL\-SHA +\& TLS_ECDH_ECDSA_WITH_RC4_128_SHA ECDH\-ECDSA\-RC4\-SHA +\& TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA ECDH\-ECDSA\-DES\-CBC3\-SHA +\& TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA ECDH\-ECDSA\-AES128\-SHA +\& TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA ECDH\-ECDSA\-AES256\-SHA +\& +\& TLS_ECDHE_RSA_WITH_NULL_SHA ECDHE\-RSA\-NULL\-SHA +\& TLS_ECDHE_RSA_WITH_RC4_128_SHA ECDHE\-RSA\-RC4\-SHA +\& TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA ECDHE\-RSA\-DES\-CBC3\-SHA +\& TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA ECDHE\-RSA\-AES128\-SHA +\& TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDHE\-RSA\-AES256\-SHA +\& +\& TLS_ECDHE_ECDSA_WITH_NULL_SHA ECDHE\-ECDSA\-NULL\-SHA +\& TLS_ECDHE_ECDSA_WITH_RC4_128_SHA ECDHE\-ECDSA\-RC4\-SHA +\& TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA ECDHE\-ECDSA\-DES\-CBC3\-SHA +\& TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA ECDHE\-ECDSA\-AES128\-SHA +\& TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA ECDHE\-ECDSA\-AES256\-SHA +\& +\& TLS_ECDH_anon_WITH_NULL_SHA AECDH\-NULL\-SHA +\& TLS_ECDH_anon_WITH_RC4_128_SHA AECDH\-RC4\-SHA +\& TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA AECDH\-DES\-CBC3\-SHA +\& TLS_ECDH_anon_WITH_AES_128_CBC_SHA AECDH\-AES128\-SHA +\& TLS_ECDH_anon_WITH_AES_256_CBC_SHA AECDH\-AES256\-SHA +.Ve +.SS "\s-1TLS\s0 v1.2 cipher suites" +.IX Subsection "TLS v1.2 cipher suites" +.Vb 1 +\& TLS_RSA_WITH_NULL_SHA256 NULL\-SHA256 +\& +\& TLS_RSA_WITH_AES_128_CBC_SHA256 AES128\-SHA256 +\& TLS_RSA_WITH_AES_256_CBC_SHA256 AES256\-SHA256 +\& TLS_RSA_WITH_AES_128_GCM_SHA256 AES128\-GCM\-SHA256 +\& TLS_RSA_WITH_AES_256_GCM_SHA384 AES256\-GCM\-SHA384 +\& +\& TLS_DH_RSA_WITH_AES_128_CBC_SHA256 DH\-RSA\-AES128\-SHA256 +\& TLS_DH_RSA_WITH_AES_256_CBC_SHA256 DH\-RSA\-AES256\-SHA256 +\& TLS_DH_RSA_WITH_AES_128_GCM_SHA256 DH\-RSA\-AES128\-GCM\-SHA256 +\& TLS_DH_RSA_WITH_AES_256_GCM_SHA384 DH\-RSA\-AES256\-GCM\-SHA384 +\& +\& TLS_DH_DSS_WITH_AES_128_CBC_SHA256 DH\-DSS\-AES128\-SHA256 +\& TLS_DH_DSS_WITH_AES_256_CBC_SHA256 DH\-DSS\-AES256\-SHA256 +\& TLS_DH_DSS_WITH_AES_128_GCM_SHA256 DH\-DSS\-AES128\-GCM\-SHA256 +\& TLS_DH_DSS_WITH_AES_256_GCM_SHA384 DH\-DSS\-AES256\-GCM\-SHA384 +\& +\& TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 DHE\-RSA\-AES128\-SHA256 +\& TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 DHE\-RSA\-AES256\-SHA256 +\& TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 DHE\-RSA\-AES128\-GCM\-SHA256 +\& TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 DHE\-RSA\-AES256\-GCM\-SHA384 +\& +\& TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 DHE\-DSS\-AES128\-SHA256 +\& TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 DHE\-DSS\-AES256\-SHA256 +\& TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 DHE\-DSS\-AES128\-GCM\-SHA256 +\& TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 DHE\-DSS\-AES256\-GCM\-SHA384 +\& +\& TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 ECDH\-RSA\-AES128\-SHA256 +\& TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 ECDH\-RSA\-AES256\-SHA384 +\& TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 ECDH\-RSA\-AES128\-GCM\-SHA256 +\& TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 ECDH\-RSA\-AES256\-GCM\-SHA384 +\& +\& TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 ECDH\-ECDSA\-AES128\-SHA256 +\& TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 ECDH\-ECDSA\-AES256\-SHA384 +\& TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 ECDH\-ECDSA\-AES128\-GCM\-SHA256 +\& TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 ECDH\-ECDSA\-AES256\-GCM\-SHA384 +\& +\& TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 ECDHE\-RSA\-AES128\-SHA256 +\& TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDHE\-RSA\-AES256\-SHA384 +\& TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDHE\-RSA\-AES128\-GCM\-SHA256 +\& TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDHE\-RSA\-AES256\-GCM\-SHA384 +\& +\& TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 ECDHE\-ECDSA\-AES128\-SHA256 +\& TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 ECDHE\-ECDSA\-AES256\-SHA384 +\& TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 ECDHE\-ECDSA\-AES128\-GCM\-SHA256 +\& TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 ECDHE\-ECDSA\-AES256\-GCM\-SHA384 +\& +\& TLS_DH_anon_WITH_AES_128_CBC_SHA256 ADH\-AES128\-SHA256 +\& TLS_DH_anon_WITH_AES_256_CBC_SHA256 ADH\-AES256\-SHA256 +\& TLS_DH_anon_WITH_AES_128_GCM_SHA256 ADH\-AES128\-GCM\-SHA256 +\& TLS_DH_anon_WITH_AES_256_GCM_SHA384 ADH\-AES256\-GCM\-SHA384 +.Ve +.SS "Pre shared keying (\s-1PSK\s0) cipheruites" +.IX Subsection "Pre shared keying (PSK) cipheruites" +.Vb 4 +\& TLS_PSK_WITH_RC4_128_SHA PSK\-RC4\-SHA +\& TLS_PSK_WITH_3DES_EDE_CBC_SHA PSK\-3DES\-EDE\-CBC\-SHA +\& TLS_PSK_WITH_AES_128_CBC_SHA PSK\-AES128\-CBC\-SHA +\& TLS_PSK_WITH_AES_256_CBC_SHA PSK\-AES256\-CBC\-SHA +.Ve +.SS "Deprecated \s-1SSL\s0 v2.0 cipher suites." +.IX Subsection "Deprecated SSL v2.0 cipher suites." +.Vb 7 +\& SSL_CK_RC4_128_WITH_MD5 RC4\-MD5 +\& SSL_CK_RC4_128_EXPORT40_WITH_MD5 Not implemented. +\& SSL_CK_RC2_128_CBC_WITH_MD5 RC2\-CBC\-MD5 +\& SSL_CK_RC2_128_CBC_EXPORT40_WITH_MD5 Not implemented. +\& SSL_CK_IDEA_128_CBC_WITH_MD5 IDEA\-CBC\-MD5 +\& SSL_CK_DES_64_CBC_WITH_MD5 Not implemented. +\& SSL_CK_DES_192_EDE3_CBC_WITH_MD5 DES\-CBC3\-MD5 +.Ve +.SH "NOTES" +.IX Header "NOTES" +Some compiled versions of OpenSSL may not include all the ciphers +listed here because some ciphers were excluded at compile time. +.SH "EXAMPLES" +.IX Header "EXAMPLES" +Verbose listing of all OpenSSL ciphers including \s-1NULL\s0 ciphers: +.PP +.Vb 1 +\& openssl ciphers \-v \*(AqALL:eNULL\*(Aq +.Ve +.PP +Include all ciphers except \s-1NULL\s0 and anonymous \s-1DH\s0 then sort by +strength: +.PP +.Vb 1 +\& openssl ciphers \-v \*(AqALL:!ADH:@STRENGTH\*(Aq +.Ve +.PP +Include all ciphers except ones with no encryption (eNULL) or no +authentication (aNULL): +.PP +.Vb 1 +\& openssl ciphers \-v \*(AqALL:!aNULL\*(Aq +.Ve +.PP +Include only 3DES ciphers and then place \s-1RSA\s0 ciphers last: +.PP +.Vb 1 +\& openssl ciphers \-v \*(Aq3DES:+RSA\*(Aq +.Ve +.PP +Include all \s-1RC4\s0 ciphers but leave out those without authentication: +.PP +.Vb 1 +\& openssl ciphers \-v \*(AqRC4:!COMPLEMENTOFDEFAULT\*(Aq +.Ve +.PP +Include all chiphers with \s-1RSA\s0 authentication but leave out ciphers without +encryption. +.PP +.Vb 1 +\& openssl ciphers \-v \*(AqRSA:!COMPLEMENTOFALL\*(Aq +.Ve +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fIs_client\fR\|(1), \fIs_server\fR\|(1), \fIssl\fR\|(3) +.SH "HISTORY" +.IX Header "HISTORY" +The \fB\s-1COMPLENTOFALL\s0\fR and \fB\s-1COMPLEMENTOFDEFAULT\s0\fR selection options +for cipherlist strings were added in OpenSSL 0.9.7. +The \fB\-V\fR option for the \fBciphers\fR command was added in OpenSSL 1.0.0. |
