1 .\" $NetBSD: crypto.3,v 1.14 2015/06/12 17:01:14 christos Exp $
3 .\" Automatically generated by Pod::Man 2.28 (Pod::Simple 3.28)
6 .\" ========================================================================
7 .de Sp \" Vertical space (when we can't use .PP)
11 .de Vb \" Begin verbatim text
16 .de Ve \" End verbatim text
20 .\" Set up some character translations and predefined strings. \*(-- will
21 .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
22 .\" double quote, and \*(R" will give a right double quote. \*(C+ will
23 .\" give a nicer C++. Capital omega is used to do unbreakable dashes and
24 .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
25 .\" nothing in troff, for use with C<>.
27 .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
31 . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
32 . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
47 .\" Escape single quotes in literal strings from groff's Unicode transform.
51 .\" If the F register is turned on, we'll generate index entries on stderr for
52 .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
53 .\" entries marked with X<> in POD. Of course, you'll have to process the
54 .\" output yourself in some meaningful fashion.
56 .\" Avoid warning from groff about undefined register 'F'.
60 .if \n(.g .if rF .nr rF 1
61 .if (\n(rF:(\n(.g==0)) \{
64 . tm Index:\\$1\t\\n%\t"\\$2"
74 .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
75 .\" Fear. Run. Save yourself. No user-serviceable parts.
76 . \" fudge factors for nroff and troff
85 . ds #H ((1u-(\\\\n(.fu%2u))*.13m)
91 . \" simple accents for nroff and troff
101 . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
102 . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
103 . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
104 . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
105 . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
106 . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
108 . \" troff and (daisy-wheel) nroff accents
109 .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
110 .ds 8 \h'\*(#H'\(*b\h'-\*(#H'
111 .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
112 .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
113 .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
114 .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
115 .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
116 .ds ae a\h'-(\w'a'u*4/10)'e
117 .ds Ae A\h'-(\w'A'u*4/10)'E
118 . \" corrections for vroff
119 .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
120 .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
121 . \" for low resolution devices (crt and lpr)
122 .if \n(.H>23 .if \n(.V>19 \
135 .\" ========================================================================
138 .TH crypto 3 "2009-07-19" "1.0.1n" "OpenSSL"
139 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
140 .\" way too many mistakes in technical documents.
144 crypto \- OpenSSL cryptographic library
148 .IX Header "SYNOPSIS"
150 .IX Header "DESCRIPTION"
151 The OpenSSL \fBcrypto\fR library implements a wide range of cryptographic
152 algorithms used in various Internet standards. The services provided
153 by this library are used by the OpenSSL implementations of \s-1SSL, TLS\s0
154 and S/MIME, and they have also been used to implement \s-1SSH,\s0 OpenPGP, and
155 other cryptographic standards.
157 .IX Header "OVERVIEW"
158 \&\fBlibcrypto\fR consists of a number of sub-libraries that implement the
159 individual algorithms.
161 The functionality includes symmetric encryption, public key
162 cryptography and key agreement, certificate handling, cryptographic
163 hash functions and a cryptographic pseudo-random number generator.
164 .IP "\s-1SYMMETRIC CIPHERS\s0" 4
165 .IX Item "SYMMETRIC CIPHERS"
166 \&\fIopenssl_blowfish\fR\|(3), \fIcast\fR\|(3), \fIopenssl_des\fR\|(3),
167 \&\fIidea\fR\|(3), \fIrc2\fR\|(3), \fIopenssl_rc4\fR\|(3), \fIrc5\fR\|(3)
168 .IP "\s-1PUBLIC KEY CRYPTOGRAPHY AND KEY AGREEMENT\s0" 4
169 .IX Item "PUBLIC KEY CRYPTOGRAPHY AND KEY AGREEMENT"
170 \&\fIopenssl_dsa\fR\|(3), \fIopenssl_dh\fR\|(3), \fIopenssl_rsa\fR\|(3)
171 .IP "\s-1CERTIFICATES\s0" 4
172 .IX Item "CERTIFICATES"
173 \&\fIx509\fR\|(3), \fIx509v3\fR\|(3)
174 .IP "\s-1AUTHENTICATION CODES, HASH FUNCTIONS\s0" 4
175 .IX Item "AUTHENTICATION CODES, HASH FUNCTIONS"
176 \&\fIopenssl_hmac\fR\|(3), \fImd2\fR\|(3), \fImd4\fR\|(3),
177 \&\fIopenssl_md5\fR\|(3), \fIopenssl_mdc2\fR\|(3), \fIopenssl_ripemd\fR\|(3),
178 \&\fIopenssl_sha\fR\|(3)
179 .IP "\s-1AUXILIARY FUNCTIONS\s0" 4
180 .IX Item "AUXILIARY FUNCTIONS"
181 \&\fIopenssl_err\fR\|(3), \fIopenssl_threads\fR\|(3), \fIopenssl_rand\fR\|(3),
182 \&\s-1\fIOPENSSL_VERSION_NUMBER\s0\fR\|(3)
183 .IP "\s-1INPUT/OUTPUT, DATA ENCODING\s0" 4
184 .IX Item "INPUT/OUTPUT, DATA ENCODING"
185 \&\fIasn1\fR\|(3), \fIopenssl_bio\fR\|(3), \fIopenssl_evp\fR\|(3), \fIpem\fR\|(3),
186 \&\fIpkcs7\fR\|(3), \fIpkcs12\fR\|(3)
187 .IP "\s-1INTERNAL FUNCTIONS\s0" 4
188 .IX Item "INTERNAL FUNCTIONS"
189 \&\fIopenssl_bn\fR\|(3), \fIopenssl_buffer\fR\|(3), \fIopenssl_lhash\fR\|(3),
190 \&\fIobjects\fR\|(3), \fIstack\fR\|(3),
194 Some of the newer functions follow a naming convention using the numbers
195 \&\fB0\fR and \fB1\fR. For example the functions:
198 \& int X509_CRL_add0_revoked(X509_CRL *crl, X509_REVOKED *rev);
199 \& int X509_add1_trust_object(X509 *x, ASN1_OBJECT *obj);
202 The \fB0\fR version uses the supplied structure pointer directly
203 in the parent and it will be freed up when the parent is freed.
204 In the above example \fBcrl\fR would be freed but \fBrev\fR would not.
206 The \fB1\fR function uses a copy of the supplied structure pointer
207 (or in some cases increases its link count) in the parent and
208 so both (\fBx\fR and \fBobj\fR above) should be freed up.
210 .IX Header "SEE ALSO"
211 \&\fIopenssl\fR\|(1), \fIssl\fR\|(3)