1 .\" Automatically generated by Pod::Man 4.09 (Pod::Simple 3.35)
4 .\" ========================================================================
5 .de Sp \" Vertical space (when we can't use .PP)
9 .de Vb \" Begin verbatim text
14 .de Ve \" End verbatim text
18 .\" Set up some character translations and predefined strings. \*(-- will
19 .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
20 .\" double quote, and \*(R" will give a right double quote. \*(C+ will
21 .\" give a nicer C++. Capital omega is used to do unbreakable dashes and
22 .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
23 .\" nothing in troff, for use with C<>.
25 .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
29 . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
30 . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
45 .\" Escape single quotes in literal strings from groff's Unicode transform.
49 .\" If the F register is >0, we'll generate index entries on stderr for
50 .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
51 .\" entries marked with X<> in POD. Of course, you'll have to process the
52 .\" output yourself in some meaningful fashion.
54 .\" Avoid warning from groff about undefined register 'F'.
60 . tm Index:\\$1\t\\n%\t"\\$2"
68 .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
69 .\" Fear. Run. Save yourself. No user-serviceable parts.
70 . \" fudge factors for nroff and troff
79 . ds #H ((1u-(\\\\n(.fu%2u))*.13m)
85 . \" simple accents for nroff and troff
95 . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
96 . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
97 . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
98 . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
99 . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
100 . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
102 . \" troff and (daisy-wheel) nroff accents
103 .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
104 .ds 8 \h'\*(#H'\(*b\h'-\*(#H'
105 .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
106 .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
107 .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
108 .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
109 .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
110 .ds ae a\h'-(\w'a'u*4/10)'e
111 .ds Ae A\h'-(\w'A'u*4/10)'E
112 . \" corrections for vroff
113 .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
114 .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
115 . \" for low resolution devices (crt and lpr)
116 .if \n(.H>23 .if \n(.V>19 \
129 .\" ========================================================================
131 .IX Title "EVP_AES 3"
132 .TH EVP_AES 3 "2018-09-11" "1.1.1" "OpenSSL"
133 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
134 .\" way too many mistakes in technical documents.
138 EVP_aes_128_cbc, EVP_aes_192_cbc, EVP_aes_256_cbc, EVP_aes_128_cfb, EVP_aes_192_cfb, EVP_aes_256_cfb, EVP_aes_128_cfb1, EVP_aes_192_cfb1, EVP_aes_256_cfb1, EVP_aes_128_cfb8, EVP_aes_192_cfb8, EVP_aes_256_cfb8, EVP_aes_128_ctr, EVP_aes_192_ctr, EVP_aes_256_ctr, EVP_aes_128_ecb, EVP_aes_192_ecb, EVP_aes_256_ecb, EVP_aes_128_ofb, EVP_aes_192_ofb, EVP_aes_256_ofb, EVP_aes_128_cbc_hmac_sha1, EVP_aes_256_cbc_hmac_sha1, EVP_aes_128_cbc_hmac_sha256, EVP_aes_256_cbc_hmac_sha256, EVP_aes_128_ccm, EVP_aes_192_ccm, EVP_aes_256_ccm, EVP_aes_128_gcm, EVP_aes_192_gcm, EVP_aes_256_gcm, EVP_aes_128_ocb, EVP_aes_192_ocb, EVP_aes_256_ocb, EVP_aes_128_wrap, EVP_aes_192_wrap, EVP_aes_256_wrap, EVP_aes_128_wrap_pad, EVP_aes_192_wrap_pad, EVP_aes_256_wrap_pad, EVP_aes_128_xts, EVP_aes_256_xts \&\- EVP AES cipher
140 .IX Header "SYNOPSIS"
142 \& #include <openssl/evp.h>
144 \& const EVP_CIPHER *EVP_ciphername(void)
147 \&\fIEVP_ciphername\fR is used a placeholder for any of the described cipher
148 functions, such as \fIEVP_aes_128_cbc\fR.
150 .IX Header "DESCRIPTION"
151 The \s-1AES\s0 encryption algorithm for \s-1EVP.\s0
152 .IP "\fIEVP_aes_128_cbc()\fR, \fIEVP_aes_192_cbc()\fR, \fIEVP_aes_256_cbc()\fR, \fIEVP_aes_128_cfb()\fR, \fIEVP_aes_192_cfb()\fR, \fIEVP_aes_256_cfb()\fR, \fIEVP_aes_128_cfb1()\fR, \fIEVP_aes_192_cfb1()\fR, \fIEVP_aes_256_cfb1()\fR, \fIEVP_aes_128_cfb8()\fR, \fIEVP_aes_192_cfb8()\fR, \fIEVP_aes_256_cfb8()\fR, \fIEVP_aes_128_ctr()\fR, \fIEVP_aes_192_ctr()\fR, \fIEVP_aes_256_ctr()\fR, \fIEVP_aes_128_ecb()\fR, \fIEVP_aes_192_ecb()\fR, \fIEVP_aes_256_ecb()\fR, \fIEVP_aes_128_ofb()\fR, \fIEVP_aes_192_ofb()\fR, \fIEVP_aes_256_ofb()\fR" 4
153 .IX Item "EVP_aes_128_cbc(), EVP_aes_192_cbc(), EVP_aes_256_cbc(), EVP_aes_128_cfb(), EVP_aes_192_cfb(), EVP_aes_256_cfb(), EVP_aes_128_cfb1(), EVP_aes_192_cfb1(), EVP_aes_256_cfb1(), EVP_aes_128_cfb8(), EVP_aes_192_cfb8(), EVP_aes_256_cfb8(), EVP_aes_128_ctr(), EVP_aes_192_ctr(), EVP_aes_256_ctr(), EVP_aes_128_ecb(), EVP_aes_192_ecb(), EVP_aes_256_ecb(), EVP_aes_128_ofb(), EVP_aes_192_ofb(), EVP_aes_256_ofb()"
154 \&\s-1AES\s0 for 128, 192 and 256 bit keys in the following modes: \s-1CBC, CFB\s0 with 128\-bit
155 shift, \s-1CFB\s0 with 1\-bit shift, \s-1CFB\s0 with 8\-bit shift, \s-1CTR, ECB,\s0 and \s-1OFB.\s0
156 .IP "\fIEVP_aes_128_cbc_hmac_sha1()\fR, \fIEVP_aes_256_cbc_hmac_sha1()\fR" 4
157 .IX Item "EVP_aes_128_cbc_hmac_sha1(), EVP_aes_256_cbc_hmac_sha1()"
158 Authenticated encryption with \s-1AES\s0 in \s-1CBC\s0 mode using \s-1SHA\-1\s0 as \s-1HMAC,\s0 with keys of
159 128 and 256 bits length respectively. The authentication tag is 160 bits long.
161 \&\s-1WARNING:\s0 this is not intended for usage outside of \s-1TLS\s0 and requires calling of
162 some undocumented ctrl functions. These ciphers do not conform to the \s-1EVP AEAD\s0
164 .IP "\fIEVP_aes_128_cbc_hmac_sha256()\fR, \fIEVP_aes_256_cbc_hmac_sha256()\fR" 4
165 .IX Item "EVP_aes_128_cbc_hmac_sha256(), EVP_aes_256_cbc_hmac_sha256()"
166 Authenticated encryption with \s-1AES\s0 in \s-1CBC\s0 mode using \s-1SHA256\s0 (\s-1SHA\-2,\s0 256\-bits) as
167 \&\s-1HMAC,\s0 with keys of 128 and 256 bits length respectively. The authentication tag
170 \&\s-1WARNING:\s0 this is not intended for usage outside of \s-1TLS\s0 and requires calling of
171 some undocumented ctrl functions. These ciphers do not conform to the \s-1EVP AEAD\s0
173 .IP "\fIEVP_aes_128_ccm()\fR, \fIEVP_aes_192_ccm()\fR, \fIEVP_aes_256_ccm()\fR, \fIEVP_aes_128_gcm()\fR, \fIEVP_aes_192_gcm()\fR, \fIEVP_aes_256_gcm()\fR, \fIEVP_aes_128_ocb()\fR, \fIEVP_aes_192_ocb()\fR, \fIEVP_aes_256_ocb()\fR" 4
174 .IX Item "EVP_aes_128_ccm(), EVP_aes_192_ccm(), EVP_aes_256_ccm(), EVP_aes_128_gcm(), EVP_aes_192_gcm(), EVP_aes_256_gcm(), EVP_aes_128_ocb(), EVP_aes_192_ocb(), EVP_aes_256_ocb()"
175 \&\s-1AES\s0 for 128, 192 and 256 bit keys in CBC-MAC Mode (\s-1CCM\s0), Galois Counter Mode
176 (\s-1GCM\s0) and \s-1OCB\s0 Mode respectively. These ciphers require additional control
177 operations to function correctly, see the \*(L"\s-1AEAD\s0 Interface\*(R" in \fIEVP_EncryptInit\fR\|(3)
179 .IP "\fIEVP_aes_128_wrap()\fR, \fIEVP_aes_192_wrap()\fR, \fIEVP_aes_256_wrap()\fR, \fIEVP_aes_128_wrap_pad()\fR, \fIEVP_aes_128_wrap()\fR, \fIEVP_aes_192_wrap()\fR, \fIEVP_aes_256_wrap()\fR, \fIEVP_aes_192_wrap_pad()\fR, \fIEVP_aes_128_wrap()\fR, \fIEVP_aes_192_wrap()\fR, \fIEVP_aes_256_wrap()\fR, \fIEVP_aes_256_wrap_pad()\fR" 4
180 .IX Item "EVP_aes_128_wrap(), EVP_aes_192_wrap(), EVP_aes_256_wrap(), EVP_aes_128_wrap_pad(), EVP_aes_128_wrap(), EVP_aes_192_wrap(), EVP_aes_256_wrap(), EVP_aes_192_wrap_pad(), EVP_aes_128_wrap(), EVP_aes_192_wrap(), EVP_aes_256_wrap(), EVP_aes_256_wrap_pad()"
181 \&\s-1AES\s0 key wrap with 128, 192 and 256 bit keys, as according to \s-1RFC 3394\s0 section
182 2.2.1 (\*(L"wrap\*(R") and \s-1RFC 5649\s0 section 4.1 (\*(L"wrap with padding\*(R") respectively.
183 .IP "\fIEVP_aes_128_xts()\fR, \fIEVP_aes_256_xts()\fR" 4
184 .IX Item "EVP_aes_128_xts(), EVP_aes_256_xts()"
185 \&\s-1AES XTS\s0 mode (XTS-AES) is standardized in \s-1IEEE\s0 Std. 1619\-2007 and described in \s-1NIST
186 SP 800\-38E.\s0 The \s-1XTS\s0 (XEX-based tweaked-codebook mode with ciphertext stealing)
187 mode was designed by Prof. Phillip Rogaway of University of California, Davis,
188 intended for encrypting data on a storage device.
190 XTS-AES provides confidentiality but not authentication of data. It also
191 requires a key of double-length for protection of a certain key size.
192 In particular, \s-1XTS\-AES\-128\s0 (\fBEVP_aes_128_xts\fR) takes input of a 256\-bit key to
193 achieve \s-1AES\s0 128\-bit security, and \s-1XTS\-AES\-256\s0 (\fBEVP_aes_256_xts\fR) takes input
194 of a 512\-bit key to achieve \s-1AES\s0 256\-bit security.
196 .IX Header "RETURN VALUES"
197 These functions return an \fB\s-1EVP_CIPHER\s0\fR structure that contains the
198 implementation of the symmetric cipher. See \fIEVP_CIPHER_meth_new\fR\|(3) for
199 details of the \fB\s-1EVP_CIPHER\s0\fR structure.
201 .IX Header "SEE ALSO"
203 \&\fIEVP_EncryptInit\fR\|(3),
204 \&\fIEVP_CIPHER_meth_new\fR\|(3)
206 .IX Header "COPYRIGHT"
207 Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
209 Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use
210 this file except in compliance with the License. You can obtain a copy
211 in the file \s-1LICENSE\s0 in the source distribution or at
212 <https://www.openssl.org/source/license.html>.