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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
Dan Williams685784a2007-07-09 11:56:42 -07002# Generic algorithms support
3#
4config XOR_BLOCKS
5 tristate
6
7#
Dan Williams9bc89cd2007-01-02 11:10:44 -07008# async_tx api: hardware offloaded memory transfer/transform support
9#
10source "crypto/async_tx/Kconfig"
11
12#
Linus Torvalds1da177e2005-04-16 15:20:36 -070013# Cryptographic API Configuration
14#
Jan Engelhardt2e290f42007-05-18 15:11:01 +100015menuconfig CRYPTO
Sebastian Siewiorc3715cb92008-03-30 16:36:09 +080016 tristate "Cryptographic API"
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 help
18 This option provides the core Cryptographic API.
19
Herbert Xucce9e062006-08-21 21:08:13 +100020if CRYPTO
21
Sebastian Siewior584fffc2008-04-05 21:04:48 +080022comment "Crypto core or helper"
23
Neil Hormanccb778e2008-08-05 14:13:08 +080024config CRYPTO_FIPS
25 bool "FIPS 200 compliance"
26 help
27 This options enables the fips boot option which is
28 required if you want to system to operate in a FIPS 200
29 certification. You should say no unless you know what
30 this is.
31
Herbert Xucce9e062006-08-21 21:08:13 +100032config CRYPTO_ALGAPI
33 tristate
Herbert Xu6a0fcbb2008-12-10 23:29:44 +110034 select CRYPTO_ALGAPI2
Herbert Xucce9e062006-08-21 21:08:13 +100035 help
36 This option provides the API for cryptographic algorithms.
37
Herbert Xu6a0fcbb2008-12-10 23:29:44 +110038config CRYPTO_ALGAPI2
39 tristate
40
Herbert Xu1ae97822007-08-30 15:36:14 +080041config CRYPTO_AEAD
42 tristate
Herbert Xu6a0fcbb2008-12-10 23:29:44 +110043 select CRYPTO_AEAD2
Herbert Xu1ae97822007-08-30 15:36:14 +080044 select CRYPTO_ALGAPI
45
Herbert Xu6a0fcbb2008-12-10 23:29:44 +110046config CRYPTO_AEAD2
47 tristate
48 select CRYPTO_ALGAPI2
49
Herbert Xu5cde0af2006-08-22 00:07:53 +100050config CRYPTO_BLKCIPHER
51 tristate
Herbert Xu6a0fcbb2008-12-10 23:29:44 +110052 select CRYPTO_BLKCIPHER2
Herbert Xu5cde0af2006-08-22 00:07:53 +100053 select CRYPTO_ALGAPI
Herbert Xu6a0fcbb2008-12-10 23:29:44 +110054
55config CRYPTO_BLKCIPHER2
56 tristate
57 select CRYPTO_ALGAPI2
58 select CRYPTO_RNG2
Herbert Xu5cde0af2006-08-22 00:07:53 +100059
Herbert Xu055bcee2006-08-19 22:24:23 +100060config CRYPTO_HASH
61 tristate
Herbert Xu6a0fcbb2008-12-10 23:29:44 +110062 select CRYPTO_HASH2
Herbert Xu055bcee2006-08-19 22:24:23 +100063 select CRYPTO_ALGAPI
64
Herbert Xu6a0fcbb2008-12-10 23:29:44 +110065config CRYPTO_HASH2
66 tristate
67 select CRYPTO_ALGAPI2
68
Neil Horman17f0f4a2008-08-14 22:15:52 +100069config CRYPTO_RNG
70 tristate
Herbert Xu6a0fcbb2008-12-10 23:29:44 +110071 select CRYPTO_RNG2
Neil Horman17f0f4a2008-08-14 22:15:52 +100072 select CRYPTO_ALGAPI
73
Herbert Xu6a0fcbb2008-12-10 23:29:44 +110074config CRYPTO_RNG2
75 tristate
76 select CRYPTO_ALGAPI2
77
Herbert Xu2b8c19d2006-09-21 11:31:44 +100078config CRYPTO_MANAGER
79 tristate "Cryptographic algorithm manager"
Herbert Xu6a0fcbb2008-12-10 23:29:44 +110080 select CRYPTO_MANAGER2
Herbert Xu2b8c19d2006-09-21 11:31:44 +100081 help
82 Create default cryptographic template instantiations such as
83 cbc(aes).
84
Herbert Xu6a0fcbb2008-12-10 23:29:44 +110085config CRYPTO_MANAGER2
86 def_tristate CRYPTO_MANAGER || (CRYPTO_MANAGER!=n && CRYPTO_ALGAPI=y)
87 select CRYPTO_AEAD2
88 select CRYPTO_HASH2
89 select CRYPTO_BLKCIPHER2
90
Rik Snelc494e072006-11-29 18:59:44 +110091config CRYPTO_GF128MUL
92 tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
93 depends on EXPERIMENTAL
94 help
95 Efficient table driven implementation of multiplications in the
96 field GF(2^128). This is needed by some cypher modes. This
97 option will be selected automatically if you select such a
98 cipher mode. Only select this option by hand if you expect to load
99 an external module that requires these functions.
100
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800101config CRYPTO_NULL
102 tristate "Null algorithms"
103 select CRYPTO_ALGAPI
104 select CRYPTO_BLKCIPHER
105 help
106 These are 'Null' algorithms, used by IPsec, which do nothing.
107
108config CRYPTO_CRYPTD
109 tristate "Software async crypto daemon"
Herbert Xudb131ef2006-09-21 11:44:08 +1000110 select CRYPTO_BLKCIPHER
Loc Hob8a28252008-05-14 21:23:00 +0800111 select CRYPTO_HASH
Herbert Xu43518402006-10-16 21:28:58 +1000112 select CRYPTO_MANAGER
Herbert Xudb131ef2006-09-21 11:44:08 +1000113 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800114 This is a generic software asynchronous crypto daemon that
115 converts an arbitrary synchronous software crypto algorithm
116 into an asynchronous algorithm that executes in a kernel thread.
117
118config CRYPTO_AUTHENC
119 tristate "Authenc support"
120 select CRYPTO_AEAD
121 select CRYPTO_BLKCIPHER
122 select CRYPTO_MANAGER
123 select CRYPTO_HASH
124 help
125 Authenc: Combined mode wrapper for IPsec.
126 This is required for IPSec.
127
128config CRYPTO_TEST
129 tristate "Testing module"
130 depends on m
Herbert Xuda7f0332008-07-31 17:08:25 +0800131 select CRYPTO_MANAGER
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800132 help
133 Quick & dirty crypto test module.
134
135comment "Authenticated Encryption with Associated Data"
136
137config CRYPTO_CCM
138 tristate "CCM support"
139 select CRYPTO_CTR
140 select CRYPTO_AEAD
141 help
142 Support for Counter with CBC MAC. Required for IPsec.
143
144config CRYPTO_GCM
145 tristate "GCM/GMAC support"
146 select CRYPTO_CTR
147 select CRYPTO_AEAD
148 select CRYPTO_GF128MUL
149 help
150 Support for Galois/Counter Mode (GCM) and Galois Message
151 Authentication Code (GMAC). Required for IPSec.
152
153config CRYPTO_SEQIV
154 tristate "Sequence Number IV Generator"
155 select CRYPTO_AEAD
156 select CRYPTO_BLKCIPHER
Herbert Xua0f000e2008-08-14 22:21:31 +1000157 select CRYPTO_RNG
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800158 help
159 This IV generator generates an IV based on a sequence number by
160 xoring it with a salt. This algorithm is mainly useful for CTR
161
162comment "Block modes"
Herbert Xudb131ef2006-09-21 11:44:08 +1000163
164config CRYPTO_CBC
165 tristate "CBC support"
166 select CRYPTO_BLKCIPHER
Herbert Xu43518402006-10-16 21:28:58 +1000167 select CRYPTO_MANAGER
Herbert Xudb131ef2006-09-21 11:44:08 +1000168 help
169 CBC: Cipher Block Chaining mode
170 This block cipher algorithm is required for IPSec.
171
Joy Latten23e353c2007-10-23 08:50:32 +0800172config CRYPTO_CTR
173 tristate "CTR support"
174 select CRYPTO_BLKCIPHER
Herbert Xu0a270322007-11-30 21:38:37 +1100175 select CRYPTO_SEQIV
Joy Latten23e353c2007-10-23 08:50:32 +0800176 select CRYPTO_MANAGER
Joy Latten23e353c2007-10-23 08:50:32 +0800177 help
178 CTR: Counter mode
179 This block cipher algorithm is required for IPSec.
180
Kevin Coffman76cb9522008-03-24 21:26:16 +0800181config CRYPTO_CTS
182 tristate "CTS support"
183 select CRYPTO_BLKCIPHER
184 help
185 CTS: Cipher Text Stealing
186 This is the Cipher Text Stealing mode as described by
187 Section 8 of rfc2040 and referenced by rfc3962.
188 (rfc3962 includes errata information in its Appendix A)
189 This mode is required for Kerberos gss mechanism support
190 for AES encryption.
191
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800192config CRYPTO_ECB
193 tristate "ECB support"
Herbert Xu653ebd92007-11-27 19:48:27 +0800194 select CRYPTO_BLKCIPHER
Herbert Xu124b53d2007-04-16 20:49:20 +1000195 select CRYPTO_MANAGER
196 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800197 ECB: Electronic CodeBook mode
198 This is the simplest block cipher algorithm. It simply encrypts
199 the input block by block.
Herbert Xu124b53d2007-04-16 20:49:20 +1000200
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800201config CRYPTO_LRW
202 tristate "LRW support (EXPERIMENTAL)"
203 depends on EXPERIMENTAL
David Howells90831632006-12-16 12:13:14 +1100204 select CRYPTO_BLKCIPHER
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800205 select CRYPTO_MANAGER
206 select CRYPTO_GF128MUL
David Howells90831632006-12-16 12:13:14 +1100207 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800208 LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
209 narrow block cipher mode for dm-crypt. Use it with cipher
210 specification string aes-lrw-benbi, the key must be 256, 320 or 384.
211 The first 128, 192 or 256 bits in the key are used for AES and the
212 rest is used to tie each cipher block to its logical position.
David Howells90831632006-12-16 12:13:14 +1100213
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800214config CRYPTO_PCBC
215 tristate "PCBC support"
216 select CRYPTO_BLKCIPHER
217 select CRYPTO_MANAGER
218 help
219 PCBC: Propagating Cipher Block Chaining mode
220 This block cipher algorithm is required for RxRPC.
221
222config CRYPTO_XTS
223 tristate "XTS support (EXPERIMENTAL)"
224 depends on EXPERIMENTAL
225 select CRYPTO_BLKCIPHER
226 select CRYPTO_MANAGER
227 select CRYPTO_GF128MUL
228 help
229 XTS: IEEE1619/D16 narrow block cipher use with aes-xts-plain,
230 key size 256, 384 or 512 bits. This implementation currently
231 can't handle a sectorsize which is not a multiple of 16 bytes.
232
233comment "Hash modes"
234
235config CRYPTO_HMAC
236 tristate "HMAC support"
237 select CRYPTO_HASH
238 select CRYPTO_MANAGER
239 help
240 HMAC: Keyed-Hashing for Message Authentication (RFC2104).
241 This is required for IPSec.
242
243config CRYPTO_XCBC
244 tristate "XCBC support"
245 depends on EXPERIMENTAL
246 select CRYPTO_HASH
247 select CRYPTO_MANAGER
248 help
249 XCBC: Keyed-Hashing with encryption algorithm
250 http://www.ietf.org/rfc/rfc3566.txt
251 http://csrc.nist.gov/encryption/modes/proposedmodes/
252 xcbc-mac/xcbc-mac-spec.pdf
253
254comment "Digest"
255
256config CRYPTO_CRC32C
257 tristate "CRC32c CRC algorithm"
Herbert Xu5773a3e2008-07-08 20:54:28 +0800258 select CRYPTO_HASH
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800259 select LIBCRC32C
260 help
261 Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
262 by iSCSI for header and data digests and by others.
263 See Castagnoli93. This implementation uses lib/libcrc32c.
Adrian Bunkb6d44342008-07-16 19:28:00 +0800264 Module will be crc32c.
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800265
Austin Zhang8cb51ba2008-08-07 09:57:03 +0800266config CRYPTO_CRC32C_INTEL
267 tristate "CRC32c INTEL hardware acceleration"
268 depends on X86
269 select CRYPTO_HASH
270 help
271 In Intel processor with SSE4.2 supported, the processor will
272 support CRC32C implementation using hardware accelerated CRC32
273 instruction. This option will create 'crc32c-intel' module,
274 which will enable any routine to use the CRC32 instruction to
275 gain performance compared with software implementation.
276 Module will be crc32c-intel.
277
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800278config CRYPTO_MD4
279 tristate "MD4 digest algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000280 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800282 MD4 message digest algorithm (RFC1320).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800284config CRYPTO_MD5
285 tristate "MD5 digest algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000286 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800288 MD5 message digest algorithm (RFC1321).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800290config CRYPTO_MICHAEL_MIC
291 tristate "Michael MIC keyed digest algorithm"
292 select CRYPTO_ALGAPI
293 help
294 Michael MIC is used for message integrity protection in TKIP
295 (IEEE 802.11i). This algorithm is required for TKIP, but it
296 should not be used for other purposes because of the weakness
297 of the algorithm.
298
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800299config CRYPTO_RMD128
Adrian Bunkb6d44342008-07-16 19:28:00 +0800300 tristate "RIPEMD-128 digest algorithm"
301 select CRYPTO_ALGAPI
302 help
303 RIPEMD-128 (ISO/IEC 10118-3:2004).
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800304
Adrian Bunkb6d44342008-07-16 19:28:00 +0800305 RIPEMD-128 is a 128-bit cryptographic hash function. It should only
306 to be used as a secure replacement for RIPEMD. For other use cases
307 RIPEMD-160 should be used.
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800308
Adrian Bunkb6d44342008-07-16 19:28:00 +0800309 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
310 See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800311
312config CRYPTO_RMD160
Adrian Bunkb6d44342008-07-16 19:28:00 +0800313 tristate "RIPEMD-160 digest algorithm"
314 select CRYPTO_ALGAPI
315 help
316 RIPEMD-160 (ISO/IEC 10118-3:2004).
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800317
Adrian Bunkb6d44342008-07-16 19:28:00 +0800318 RIPEMD-160 is a 160-bit cryptographic hash function. It is intended
319 to be used as a secure replacement for the 128-bit hash functions
320 MD4, MD5 and it's predecessor RIPEMD
321 (not to be confused with RIPEMD-128).
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800322
Adrian Bunkb6d44342008-07-16 19:28:00 +0800323 It's speed is comparable to SHA1 and there are no known attacks
324 against RIPEMD-160.
Adrian-Ken Rueegsegger534fe2c2008-05-09 21:30:27 +0800325
Adrian Bunkb6d44342008-07-16 19:28:00 +0800326 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
327 See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
Adrian-Ken Rueegsegger534fe2c2008-05-09 21:30:27 +0800328
329config CRYPTO_RMD256
Adrian Bunkb6d44342008-07-16 19:28:00 +0800330 tristate "RIPEMD-256 digest algorithm"
331 select CRYPTO_ALGAPI
332 help
333 RIPEMD-256 is an optional extension of RIPEMD-128 with a
334 256 bit hash. It is intended for applications that require
335 longer hash-results, without needing a larger security level
336 (than RIPEMD-128).
Adrian-Ken Rueegsegger534fe2c2008-05-09 21:30:27 +0800337
Adrian Bunkb6d44342008-07-16 19:28:00 +0800338 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
339 See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
Adrian-Ken Rueegsegger534fe2c2008-05-09 21:30:27 +0800340
341config CRYPTO_RMD320
Adrian Bunkb6d44342008-07-16 19:28:00 +0800342 tristate "RIPEMD-320 digest algorithm"
343 select CRYPTO_ALGAPI
344 help
345 RIPEMD-320 is an optional extension of RIPEMD-160 with a
346 320 bit hash. It is intended for applications that require
347 longer hash-results, without needing a larger security level
348 (than RIPEMD-160).
Adrian-Ken Rueegsegger534fe2c2008-05-09 21:30:27 +0800349
Adrian Bunkb6d44342008-07-16 19:28:00 +0800350 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
351 See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800352
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800353config CRYPTO_SHA1
354 tristate "SHA1 digest algorithm"
355 select CRYPTO_ALGAPI
356 help
357 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
358
359config CRYPTO_SHA256
360 tristate "SHA224 and SHA256 digest algorithm"
361 select CRYPTO_ALGAPI
362 help
363 SHA256 secure hash standard (DFIPS 180-2).
364
365 This version of SHA implements a 256 bit hash with 128 bits of
366 security against collision attacks.
367
Adrian Bunkb6d44342008-07-16 19:28:00 +0800368 This code also includes SHA-224, a 224 bit hash with 112 bits
369 of security against collision attacks.
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800370
371config CRYPTO_SHA512
372 tristate "SHA384 and SHA512 digest algorithms"
373 select CRYPTO_ALGAPI
374 help
375 SHA512 secure hash standard (DFIPS 180-2).
376
377 This version of SHA implements a 512 bit hash with 256 bits of
378 security against collision attacks.
379
380 This code also includes SHA-384, a 384 bit hash with 192 bits
381 of security against collision attacks.
382
383config CRYPTO_TGR192
384 tristate "Tiger digest algorithms"
385 select CRYPTO_ALGAPI
386 help
387 Tiger hash algorithm 192, 160 and 128-bit hashes
388
389 Tiger is a hash function optimized for 64-bit processors while
390 still having decent performance on 32-bit processors.
391 Tiger was developed by Ross Anderson and Eli Biham.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392
393 See also:
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800394 <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
395
396config CRYPTO_WP512
397 tristate "Whirlpool digest algorithms"
398 select CRYPTO_ALGAPI
399 help
400 Whirlpool hash algorithm 512, 384 and 256-bit hashes
401
402 Whirlpool-512 is part of the NESSIE cryptographic primitives.
403 Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
404
405 See also:
406 <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
407
408comment "Ciphers"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700409
410config CRYPTO_AES
411 tristate "AES cipher algorithms"
Herbert Xucce9e062006-08-21 21:08:13 +1000412 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800414 AES cipher algorithms (FIPS-197). AES uses the Rijndael
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415 algorithm.
416
417 Rijndael appears to be consistently a very good performer in
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800418 both hardware and software across a wide range of computing
419 environments regardless of its use in feedback or non-feedback
420 modes. Its key setup time is excellent, and its key agility is
421 good. Rijndael's very low memory requirements make it very well
422 suited for restricted-space environments, in which it also
423 demonstrates excellent performance. Rijndael's operations are
424 among the easiest to defend against power and timing attacks.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800426 The AES specifies three key sizes: 128, 192 and 256 bits
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427
428 See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
429
430config CRYPTO_AES_586
431 tristate "AES cipher algorithms (i586)"
Herbert Xucce9e062006-08-21 21:08:13 +1000432 depends on (X86 || UML_X86) && !64BIT
433 select CRYPTO_ALGAPI
Sebastian Siewior5157dea2007-11-10 19:07:16 +0800434 select CRYPTO_AES
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800436 AES cipher algorithms (FIPS-197). AES uses the Rijndael
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437 algorithm.
438
439 Rijndael appears to be consistently a very good performer in
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800440 both hardware and software across a wide range of computing
441 environments regardless of its use in feedback or non-feedback
442 modes. Its key setup time is excellent, and its key agility is
443 good. Rijndael's very low memory requirements make it very well
444 suited for restricted-space environments, in which it also
445 demonstrates excellent performance. Rijndael's operations are
446 among the easiest to defend against power and timing attacks.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800448 The AES specifies three key sizes: 128, 192 and 256 bits
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
450 See <http://csrc.nist.gov/encryption/aes/> for more information.
451
Andreas Steinmetza2a892a2005-07-06 13:55:00 -0700452config CRYPTO_AES_X86_64
453 tristate "AES cipher algorithms (x86_64)"
Herbert Xucce9e062006-08-21 21:08:13 +1000454 depends on (X86 || UML_X86) && 64BIT
455 select CRYPTO_ALGAPI
Sebastian Siewior81190b32007-11-08 21:25:04 +0800456 select CRYPTO_AES
Andreas Steinmetza2a892a2005-07-06 13:55:00 -0700457 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800458 AES cipher algorithms (FIPS-197). AES uses the Rijndael
Andreas Steinmetza2a892a2005-07-06 13:55:00 -0700459 algorithm.
460
461 Rijndael appears to be consistently a very good performer in
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800462 both hardware and software across a wide range of computing
463 environments regardless of its use in feedback or non-feedback
464 modes. Its key setup time is excellent, and its key agility is
465 good. Rijndael's very low memory requirements make it very well
466 suited for restricted-space environments, in which it also
467 demonstrates excellent performance. Rijndael's operations are
468 among the easiest to defend against power and timing attacks.
Andreas Steinmetza2a892a2005-07-06 13:55:00 -0700469
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800470 The AES specifies three key sizes: 128, 192 and 256 bits
Andreas Steinmetza2a892a2005-07-06 13:55:00 -0700471
472 See <http://csrc.nist.gov/encryption/aes/> for more information.
473
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800474config CRYPTO_ANUBIS
475 tristate "Anubis cipher algorithm"
476 select CRYPTO_ALGAPI
477 help
478 Anubis cipher algorithm.
479
480 Anubis is a variable key length cipher which can use keys from
481 128 bits to 320 bits in length. It was evaluated as a entrant
482 in the NESSIE competition.
483
484 See also:
485 <https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
486 <http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
487
488config CRYPTO_ARC4
489 tristate "ARC4 cipher algorithm"
490 select CRYPTO_ALGAPI
491 help
492 ARC4 cipher algorithm.
493
494 ARC4 is a stream cipher using keys ranging from 8 bits to 2048
495 bits in length. This algorithm is required for driver-based
496 WEP, but it should not be for other purposes because of the
497 weakness of the algorithm.
498
499config CRYPTO_BLOWFISH
500 tristate "Blowfish cipher algorithm"
501 select CRYPTO_ALGAPI
502 help
503 Blowfish cipher algorithm, by Bruce Schneier.
504
505 This is a variable key length cipher which can use keys from 32
506 bits to 448 bits in length. It's fast, simple and specifically
507 designed for use on "large microprocessors".
508
509 See also:
510 <http://www.schneier.com/blowfish.html>
511
512config CRYPTO_CAMELLIA
513 tristate "Camellia cipher algorithms"
514 depends on CRYPTO
515 select CRYPTO_ALGAPI
516 help
517 Camellia cipher algorithms module.
518
519 Camellia is a symmetric key block cipher developed jointly
520 at NTT and Mitsubishi Electric Corporation.
521
522 The Camellia specifies three key sizes: 128, 192 and 256 bits.
523
524 See also:
525 <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>
526
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527config CRYPTO_CAST5
528 tristate "CAST5 (CAST-128) cipher algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000529 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700530 help
531 The CAST5 encryption algorithm (synonymous with CAST-128) is
532 described in RFC2144.
533
534config CRYPTO_CAST6
535 tristate "CAST6 (CAST-256) cipher algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000536 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537 help
538 The CAST6 encryption algorithm (synonymous with CAST-256) is
539 described in RFC2612.
540
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800541config CRYPTO_DES
542 tristate "DES and Triple DES EDE cipher algorithms"
Herbert Xucce9e062006-08-21 21:08:13 +1000543 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800545 DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800547config CRYPTO_FCRYPT
548 tristate "FCrypt cipher algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000549 select CRYPTO_ALGAPI
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800550 select CRYPTO_BLKCIPHER
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800552 FCrypt algorithm used by RxRPC.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700553
554config CRYPTO_KHAZAD
555 tristate "Khazad cipher algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000556 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700557 help
558 Khazad cipher algorithm.
559
560 Khazad was a finalist in the initial NESSIE competition. It is
561 an algorithm optimized for 64-bit processors with good performance
562 on 32-bit processors. Khazad uses an 128 bit key size.
563
564 See also:
565 <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
566
Tan Swee Heng2407d602007-11-23 19:45:00 +0800567config CRYPTO_SALSA20
568 tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)"
569 depends on EXPERIMENTAL
570 select CRYPTO_BLKCIPHER
571 help
572 Salsa20 stream cipher algorithm.
573
574 Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
575 Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
576
577 The Salsa20 stream cipher algorithm is designed by Daniel J.
578 Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579
Tan Swee Heng974e4b72007-12-10 15:52:56 +0800580config CRYPTO_SALSA20_586
581 tristate "Salsa20 stream cipher algorithm (i586) (EXPERIMENTAL)"
582 depends on (X86 || UML_X86) && !64BIT
583 depends on EXPERIMENTAL
584 select CRYPTO_BLKCIPHER
Tan Swee Heng974e4b72007-12-10 15:52:56 +0800585 help
586 Salsa20 stream cipher algorithm.
587
588 Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
589 Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
590
591 The Salsa20 stream cipher algorithm is designed by Daniel J.
592 Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
593
Tan Swee Heng9a7dafb2007-12-18 00:04:40 +0800594config CRYPTO_SALSA20_X86_64
595 tristate "Salsa20 stream cipher algorithm (x86_64) (EXPERIMENTAL)"
596 depends on (X86 || UML_X86) && 64BIT
597 depends on EXPERIMENTAL
598 select CRYPTO_BLKCIPHER
Tan Swee Heng9a7dafb2007-12-18 00:04:40 +0800599 help
600 Salsa20 stream cipher algorithm.
601
602 Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
603 Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
604
605 The Salsa20 stream cipher algorithm is designed by Daniel J.
606 Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
607
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800608config CRYPTO_SEED
609 tristate "SEED cipher algorithm"
610 select CRYPTO_ALGAPI
611 help
612 SEED cipher algorithm (RFC4269).
613
614 SEED is a 128-bit symmetric key block cipher that has been
615 developed by KISA (Korea Information Security Agency) as a
616 national standard encryption algorithm of the Republic of Korea.
617 It is a 16 round block cipher with the key size of 128 bit.
618
619 See also:
620 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>
621
622config CRYPTO_SERPENT
623 tristate "Serpent cipher algorithm"
624 select CRYPTO_ALGAPI
625 help
626 Serpent cipher algorithm, by Anderson, Biham & Knudsen.
627
628 Keys are allowed to be from 0 to 256 bits in length, in steps
629 of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
630 variant of Serpent for compatibility with old kerneli.org code.
631
632 See also:
633 <http://www.cl.cam.ac.uk/~rja14/serpent.html>
634
635config CRYPTO_TEA
636 tristate "TEA, XTEA and XETA cipher algorithms"
637 select CRYPTO_ALGAPI
638 help
639 TEA cipher algorithm.
640
641 Tiny Encryption Algorithm is a simple cipher that uses
642 many rounds for security. It is very fast and uses
643 little memory.
644
645 Xtendend Tiny Encryption Algorithm is a modification to
646 the TEA algorithm to address a potential key weakness
647 in the TEA algorithm.
648
649 Xtendend Encryption Tiny Algorithm is a mis-implementation
650 of the XTEA algorithm for compatibility purposes.
651
652config CRYPTO_TWOFISH
653 tristate "Twofish cipher algorithm"
654 select CRYPTO_ALGAPI
655 select CRYPTO_TWOFISH_COMMON
656 help
657 Twofish cipher algorithm.
658
659 Twofish was submitted as an AES (Advanced Encryption Standard)
660 candidate cipher by researchers at CounterPane Systems. It is a
661 16 round block cipher supporting key sizes of 128, 192, and 256
662 bits.
663
664 See also:
665 <http://www.schneier.com/twofish.html>
666
667config CRYPTO_TWOFISH_COMMON
668 tristate
669 help
670 Common parts of the Twofish cipher algorithm shared by the
671 generic c and the assembler implementations.
672
673config CRYPTO_TWOFISH_586
674 tristate "Twofish cipher algorithms (i586)"
675 depends on (X86 || UML_X86) && !64BIT
676 select CRYPTO_ALGAPI
677 select CRYPTO_TWOFISH_COMMON
678 help
679 Twofish cipher algorithm.
680
681 Twofish was submitted as an AES (Advanced Encryption Standard)
682 candidate cipher by researchers at CounterPane Systems. It is a
683 16 round block cipher supporting key sizes of 128, 192, and 256
684 bits.
685
686 See also:
687 <http://www.schneier.com/twofish.html>
688
689config CRYPTO_TWOFISH_X86_64
690 tristate "Twofish cipher algorithm (x86_64)"
691 depends on (X86 || UML_X86) && 64BIT
692 select CRYPTO_ALGAPI
693 select CRYPTO_TWOFISH_COMMON
694 help
695 Twofish cipher algorithm (x86_64).
696
697 Twofish was submitted as an AES (Advanced Encryption Standard)
698 candidate cipher by researchers at CounterPane Systems. It is a
699 16 round block cipher supporting key sizes of 128, 192, and 256
700 bits.
701
702 See also:
703 <http://www.schneier.com/twofish.html>
704
705comment "Compression"
706
Linus Torvalds1da177e2005-04-16 15:20:36 -0700707config CRYPTO_DEFLATE
708 tristate "Deflate compression algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000709 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700710 select ZLIB_INFLATE
711 select ZLIB_DEFLATE
712 help
713 This is the Deflate algorithm (RFC1951), specified for use in
714 IPSec with the IPCOMP protocol (RFC3173, RFC2394).
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800715
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 You will most probably want this if using IPSec.
717
Zoltan Sogor0b77abb2007-12-07 16:53:23 +0800718config CRYPTO_LZO
719 tristate "LZO compression algorithm"
720 select CRYPTO_ALGAPI
721 select LZO_COMPRESS
722 select LZO_DECOMPRESS
723 help
724 This is the LZO algorithm.
725
Neil Horman17f0f4a2008-08-14 22:15:52 +1000726comment "Random Number Generation"
727
728config CRYPTO_ANSI_CPRNG
729 tristate "Pseudo Random Number Generation for Cryptographic modules"
730 select CRYPTO_AES
731 select CRYPTO_RNG
732 select CRYPTO_FIPS
733 help
734 This option enables the generic pseudo random number generator
735 for cryptographic modules. Uses the Algorithm specified in
736 ANSI X9.31 A.2.4
737
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738source "drivers/crypto/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739
Herbert Xucce9e062006-08-21 21:08:13 +1000740endif # if CRYPTO