2 # Cryptographic API Configuration
5 menu "Cryptographic options"
8 bool "Cryptographic API"
10 This option provides the core Cryptographic API.
16 HMAC: Keyed-Hashing for Message Authentication (RFC2104).
17 This is required for IPSec.
20 tristate "Null algorithms"
23 These are 'Null' algorithms, used by IPsec, which do nothing.
26 tristate "MD4 digest algorithm"
29 MD4 message digest algorithm (RFC1320).
32 tristate "MD5 digest algorithm"
35 MD5 message digest algorithm (RFC1321).
38 tristate "SHA1 digest algorithm"
41 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
43 config CRYPTO_SHA1_Z990
44 tristate "SHA1 digest algorithm for IBM zSeries z990"
45 depends on CRYPTO && ARCH_S390
47 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
50 tristate "SHA256 digest algorithm"
53 SHA256 secure hash standard (DFIPS 180-2).
55 This version of SHA implements a 256 bit hash with 128 bits of
56 security against collision attacks.
59 tristate "SHA384 and SHA512 digest algorithms"
62 SHA512 secure hash standard (DFIPS 180-2).
64 This version of SHA implements a 512 bit hash with 256 bits of
65 security against collision attacks.
67 This code also includes SHA-384, a 384 bit hash with 192 bits
68 of security against collision attacks.
71 tristate "Whirlpool digest algorithms"
74 Whirlpool hash algorithm 512, 384 and 256-bit hashes
76 Whirlpool-512 is part of the NESSIE cryptographic primitives.
77 Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
80 <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
83 tristate "DES and Triple DES EDE cipher algorithms"
86 DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
88 config CRYPTO_DES_Z990
89 tristate "DES and Triple DES cipher algorithms for IBM zSeries z990"
90 depends on CRYPTO && ARCH_S390
92 DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
94 config CRYPTO_BLOWFISH
95 tristate "Blowfish cipher algorithm"
98 Blowfish cipher algorithm, by Bruce Schneier.
100 This is a variable key length cipher which can use keys from 32
101 bits to 448 bits in length. It's fast, simple and specifically
102 designed for use on "large microprocessors".
105 <http://www.schneier.com/blowfish.html>
107 config CRYPTO_TWOFISH
108 tristate "Twofish cipher algorithm"
111 Twofish cipher algorithm.
113 Twofish was submitted as an AES (Advanced Encryption Standard)
114 candidate cipher by researchers at CounterPane Systems. It is a
115 16 round block cipher supporting key sizes of 128, 192, and 256
119 <http://www.schneier.com/twofish.html>
121 config CRYPTO_SERPENT
122 tristate "Serpent cipher algorithm"
125 Serpent cipher algorithm, by Anderson, Biham & Knudsen.
127 Keys are allowed to be from 0 to 256 bits in length, in steps
128 of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
129 variant of Serpent for compatibility with old kerneli code.
132 <http://www.cl.cam.ac.uk/~rja14/serpent.html>
135 tristate "AES cipher algorithms"
136 depends on CRYPTO && !(X86 && !X86_64)
138 AES cipher algorithms (FIPS-197). AES uses the Rijndael
141 Rijndael appears to be consistently a very good performer in
142 both hardware and software across a wide range of computing
143 environments regardless of its use in feedback or non-feedback
144 modes. Its key setup time is excellent, and its key agility is
145 good. Rijndael's very low memory requirements make it very well
146 suited for restricted-space environments, in which it also
147 demonstrates excellent performance. Rijndael's operations are
148 among the easiest to defend against power and timing attacks.
150 The AES specifies three key sizes: 128, 192 and 256 bits
152 See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
154 config CRYPTO_AES_586
155 tristate "AES cipher algorithms (i586)"
156 depends on CRYPTO && (X86 && !X86_64)
158 AES cipher algorithms (FIPS-197). AES uses the Rijndael
161 Rijndael appears to be consistently a very good performer in
162 both hardware and software across a wide range of computing
163 environments regardless of its use in feedback or non-feedback
164 modes. Its key setup time is excellent, and its key agility is
165 good. Rijndael's very low memory requirements make it very well
166 suited for restricted-space environments, in which it also
167 demonstrates excellent performance. Rijndael's operations are
168 among the easiest to defend against power and timing attacks.
170 The AES specifies three key sizes: 128, 192 and 256 bits
172 See <http://csrc.nist.gov/encryption/aes/> for more information.
175 tristate "CAST5 (CAST-128) cipher algorithm"
178 The CAST5 encryption algorithm (synonymous with CAST-128) is
179 described in RFC2144.
182 tristate "CAST6 (CAST-256) cipher algorithm"
185 The CAST6 encryption algorithm (synonymous with CAST-256) is
186 described in RFC2612.
189 tristate "TEA and XTEA cipher algorithms"
192 TEA cipher algorithm.
194 Tiny Encryption Algorithm is a simple cipher that uses
195 many rounds for security. It is very fast and uses
198 Xtendend Tiny Encryption Algorithm is a modification to
199 the TEA algorithm to address a potential key weakness
200 in the TEA algorithm.
203 tristate "ARC4 cipher algorithm"
206 ARC4 cipher algorithm.
208 ARC4 is a stream cipher using keys ranging from 8 bits to 2048
209 bits in length. This algorithm is required for driver-based
210 WEP, but it should not be for other purposes because of the
211 weakness of the algorithm.
214 tristate "Khazad cipher algorithm"
217 Khazad cipher algorithm.
219 Khazad was a finalist in the initial NESSIE competition. It is
220 an algorithm optimized for 64-bit processors with good performance
221 on 32-bit processors. Khazad uses an 128 bit key size.
224 <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
227 tristate "Anubis cipher algorithm"
230 Anubis cipher algorithm.
232 Anubis is a variable key length cipher which can use keys from
233 128 bits to 320 bits in length. It was evaluated as a entrant
234 in the NESSIE competition.
237 <https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
238 <http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
241 config CRYPTO_DEFLATE
242 tristate "Deflate compression algorithm"
247 This is the Deflate algorithm (RFC1951), specified for use in
248 IPSec with the IPCOMP protocol (RFC3173, RFC2394).
250 You will most probably want this if using IPSec.
252 config CRYPTO_MICHAEL_MIC
253 tristate "Michael MIC keyed digest algorithm"
256 Michael MIC is used for message integrity protection in TKIP
257 (IEEE 802.11i). This algorithm is required for TKIP, but it
258 should not be used for other purposes because of the weakness
262 tristate "CRC32c CRC algorithm"
266 Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
267 by iSCSI for header and data digests and by others.
268 See Castagnoli93. This implementation uses lib/libcrc32c.
269 Module will be crc32c.
272 tristate "Testing module"
275 Quick & dirty crypto test module.
277 source "drivers/crypto/Kconfig"