2 ''' $RCSfile$$Revision$$Date$
20 .ie \\n(.$>=3 .ne \\$3
36 ''' Set up \*(-- to give an unbreakable dash;
37 ''' string Tr holds user defined translation string.
38 ''' Bell System Logo is used as a dummy character.
44 .if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
45 .if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
48 ''' \*(M", \*(S", \*(N" and \*(T" are the equivalent of
49 ''' \*(L" and \*(R", except that they are used on ".xx" lines,
50 ''' such as .IP and .SH, which do another additional levels of
51 ''' double-quote interpretation
80 .\" If the F register is turned on, we'll generate
81 .\" index entries out stderr for the following things:
86 .\" X<> Xref (embedded
87 .\" Of course, you have to process the output yourself
88 .\" in some meaninful fashion.
91 .tm Index:\\$1\t\\n%\t"\\$2"
96 .TH SSL_CIPHER_get_name 3 "0.9.7d" "2/Sep/2004" "OpenSSL"
100 .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
101 .de CQ \" put $1 in typewriter font
107 \\&\\$2 \\$3 \\$4 \\$5 \\$6 \\$7
110 .\" @(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2
111 . \" AM - accent mark definitions
113 . \" fudge factors for nroff and troff
122 . ds #H ((1u-(\\\\n(.fu%2u))*.13m)
128 . \" simple accents for nroff and troff
141 . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
142 . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
143 . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
144 . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
145 . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
146 . ds ? \s-2c\h'-\w'c'u*7/10'\u\h'\*(#H'\zi\d\s+2\h'\w'c'u*8/10'
147 . ds ! \s-2\(or\s+2\h'-\w'\(or'u'\v'-.8m'.\v'.8m'
148 . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
149 . ds q o\h'-\w'o'u*8/10'\s-4\v'.4m'\z\(*i\v'-.4m'\s+4\h'\w'o'u*8/10'
151 . \" troff and (daisy-wheel) nroff accents
152 .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
153 .ds 8 \h'\*(#H'\(*b\h'-\*(#H'
154 .ds v \\k:\h'-(\\n(.wu*9/10-\*(#H)'\v'-\*(#V'\*(#[\s-4v\s0\v'\*(#V'\h'|\\n:u'\*(#]
155 .ds _ \\k:\h'-(\\n(.wu*9/10-\*(#H+(\*(#F*2/3))'\v'-.4m'\z\(hy\v'.4m'\h'|\\n:u'
156 .ds . \\k:\h'-(\\n(.wu*8/10)'\v'\*(#V*4/10'\z.\v'-\*(#V*4/10'\h'|\\n:u'
157 .ds 3 \*(#[\v'.2m'\s-2\&3\s0\v'-.2m'\*(#]
158 .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
159 .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
160 .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
161 .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
162 .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
163 .ds ae a\h'-(\w'a'u*4/10)'e
164 .ds Ae A\h'-(\w'A'u*4/10)'E
165 .ds oe o\h'-(\w'o'u*4/10)'e
166 .ds Oe O\h'-(\w'O'u*4/10)'E
167 . \" corrections for vroff
168 .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
169 .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
170 . \" for low resolution devices (crt and lpr)
171 .if \n(.H>23 .if \n(.V>19 \
175 . ds v \h'-1'\o'\(aa\(ga'
191 SSL_CIPHER_get_name, SSL_CIPHER_get_bits, SSL_CIPHER_get_version, SSL_CIPHER_description \- get SSL_CIPHER properties
195 \& #include <openssl/ssl.h>
198 \& const char *SSL_CIPHER_get_name(SSL_CIPHER *cipher);
199 \& int SSL_CIPHER_get_bits(SSL_CIPHER *cipher, int *alg_bits);
200 \& char *SSL_CIPHER_get_version(SSL_CIPHER *cipher);
201 \& char *SSL_CIPHER_description(SSL_CIPHER *cipher, char *buf, int size);
204 \fISSL_CIPHER_get_name()\fR returns a pointer to the name of \fBcipher\fR. If the
205 argument is the NULL pointer, a pointer to the constant value \*(L"NONE\*(R" is
208 \fISSL_CIPHER_get_bits()\fR returns the number of secret bits used for \fBcipher\fR. If
209 \fBalg_bits\fR is not NULL, it contains the number of bits processed by the
210 chosen algorithm. If \fBcipher\fR is NULL, 0 is returned.
212 \fISSL_CIPHER_get_version()\fR returns the protocol version for \fBcipher\fR, currently
213 \*(L"SSLv2\*(R", \*(L"SSLv3\*(R", or \*(L"TLSv1\*(R". If \fBcipher\fR is NULL, \*(L"(NONE)\*(R" is returned.
215 \fISSL_CIPHER_description()\fR returns a textual description of the cipher used
216 into the buffer \fBbuf\fR of length \fBlen\fR provided. \fBlen\fR must be at least
217 128 bytes, otherwise a pointer to the the string \*(L"Buffer too small\*(R" is
218 returned. If \fBbuf\fR is NULL, a buffer of 128 bytes is allocated using
219 \fIOPENSSL_malloc()\fR. If the allocation fails, a pointer to the string
220 \*(L"OPENSSL_malloc Error\*(R" is returned.
222 The number of bits processed can be different from the secret bits. An
223 export cipher like e.g. EXP\-RC4-MD5 has only 40 secret bits. The algorithm
224 does use the full 128 bits (which would be returned for \fBalg_bits\fR), of
225 which however 88bits are fixed. The search space is hence only 40 bits.
227 The string returned by \fISSL_CIPHER_description()\fR in case of success consists
228 of cleartext information separated by one or more blanks in the following
231 Textual representation of the cipher name.
232 .Ip "<protocol version>" 4
233 Protocol version: \fBSSLv2\fR, \fBSSLv3\fR. The TLSv1 ciphers are flagged with SSLv3.
234 .Ip "Kx=<key exchange>" 4
235 Key exchange method: \fB\s-1RSA\s0\fR (for export ciphers as \fB\s-1RSA\s0(512)\fR or
236 \fB\s-1RSA\s0(1024)\fR), \fB\s-1DH\s0\fR (for export ciphers as \fB\s-1DH\s0(512)\fR or \fB\s-1DH\s0(1024)\fR),
237 \fB\s-1DH/RSA\s0\fR, \fB\s-1DH/DSS\s0\fR, \fBFortezza\fR.
238 .Ip "Au=<authentication>" 4
239 Authentication method: \fB\s-1RSA\s0\fR, \fB\s-1DSS\s0\fR, \fB\s-1DH\s0\fR, \fBNone\fR. None is the
240 representation of anonymous ciphers.
241 .Ip "Enc=<symmetric encryption method>" 4
242 Encryption method with number of secret bits: \fB\s-1DES\s0(40)\fR, \fB\s-1DES\s0(56)\fR,
243 \fB3DES(168)\fR, \fB\s-1RC4\s0(40)\fR, \fB\s-1RC4\s0(56)\fR, \fB\s-1RC4\s0(64)\fR, \fB\s-1RC4\s0(128)\fR,
244 \fB\s-1RC2\s0(40)\fR, \fB\s-1RC2\s0(56)\fR, \fB\s-1RC2\s0(128)\fR, \fB\s-1IDEA\s0(128)\fR, \fBFortezza\fR, \fBNone\fR.
245 .Ip "Mac=<message authentication code>" 4
246 Message digest: \fB\s-1MD5\s0\fR, \fB\s-1SHA1\s0\fR.
247 .Ip "<export flag>" 4
248 If the cipher is flagged exportable with respect to old \s-1US\s0 crypto
249 regulations, the word \*(L"\fBexport\fR\*(R" is printed.
251 Some examples for the output of \fISSL_CIPHER_description()\fR:
254 \& EDH-RSA-DES-CBC3-SHA SSLv3 Kx=DH Au=RSA Enc=3DES(168) Mac=SHA1
255 \& EDH-DSS-DES-CBC3-SHA SSLv3 Kx=DH Au=DSS Enc=3DES(168) Mac=SHA1
256 \& RC4-MD5 SSLv3 Kx=RSA Au=RSA Enc=RC4(128) Mac=MD5
257 \& EXP-RC4-MD5 SSLv3 Kx=RSA(512) Au=RSA Enc=RC4(40) Mac=MD5 export
260 If \fISSL_CIPHER_description()\fR is called with \fBcipher\fR being NULL, the
263 If \fISSL_CIPHER_description()\fR cannot handle a built-in cipher, the according
264 description of the cipher property is \fBunknown\fR. This case should not
269 ssl(3), SSL_get_current_cipher(3),
270 SSL_get_ciphers(3), ciphers(1)
273 .IX Title "SSL_CIPHER_get_name 3"
274 .IX Name "SSL_CIPHER_get_name, SSL_CIPHER_get_bits, SSL_CIPHER_get_version, SSL_CIPHER_description - get SSL_CIPHER properties"
278 .IX Header "SYNOPSIS"
280 .IX Header "DESCRIPTION"
284 .IX Item "<ciphername>"
286 .IX Item "<protocol version>"
288 .IX Item "Kx=<key exchange>"
290 .IX Item "Au=<authentication>"
292 .IX Item "Enc=<symmetric encryption method>"
294 .IX Item "Mac=<message authentication code>"
296 .IX Item "<export flag>"
298 .IX Header "EXAMPLES"
302 .IX Header "RETURN VALUES"
304 .IX Header "SEE ALSO"