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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 help
260 Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
261 by iSCSI for header and data digests and by others.
Herbert Xu69c35ef2008-11-07 15:11:47 +0800262 See Castagnoli93. Module will be crc32c.
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800263
Austin Zhang8cb51ba2008-08-07 09:57:03 +0800264config CRYPTO_CRC32C_INTEL
265 tristate "CRC32c INTEL hardware acceleration"
266 depends on X86
267 select CRYPTO_HASH
268 help
269 In Intel processor with SSE4.2 supported, the processor will
270 support CRC32C implementation using hardware accelerated CRC32
271 instruction. This option will create 'crc32c-intel' module,
272 which will enable any routine to use the CRC32 instruction to
273 gain performance compared with software implementation.
274 Module will be crc32c-intel.
275
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800276config CRYPTO_MD4
277 tristate "MD4 digest algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000278 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800280 MD4 message digest algorithm (RFC1320).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700281
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800282config CRYPTO_MD5
283 tristate "MD5 digest algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000284 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800286 MD5 message digest algorithm (RFC1321).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800288config CRYPTO_MICHAEL_MIC
289 tristate "Michael MIC keyed digest algorithm"
290 select CRYPTO_ALGAPI
291 help
292 Michael MIC is used for message integrity protection in TKIP
293 (IEEE 802.11i). This algorithm is required for TKIP, but it
294 should not be used for other purposes because of the weakness
295 of the algorithm.
296
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800297config CRYPTO_RMD128
Adrian Bunkb6d44342008-07-16 19:28:00 +0800298 tristate "RIPEMD-128 digest algorithm"
299 select CRYPTO_ALGAPI
300 help
301 RIPEMD-128 (ISO/IEC 10118-3:2004).
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800302
Adrian Bunkb6d44342008-07-16 19:28:00 +0800303 RIPEMD-128 is a 128-bit cryptographic hash function. It should only
304 to be used as a secure replacement for RIPEMD. For other use cases
305 RIPEMD-160 should be used.
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800306
Adrian Bunkb6d44342008-07-16 19:28:00 +0800307 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
308 See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800309
310config CRYPTO_RMD160
Adrian Bunkb6d44342008-07-16 19:28:00 +0800311 tristate "RIPEMD-160 digest algorithm"
312 select CRYPTO_ALGAPI
313 help
314 RIPEMD-160 (ISO/IEC 10118-3:2004).
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800315
Adrian Bunkb6d44342008-07-16 19:28:00 +0800316 RIPEMD-160 is a 160-bit cryptographic hash function. It is intended
317 to be used as a secure replacement for the 128-bit hash functions
318 MD4, MD5 and it's predecessor RIPEMD
319 (not to be confused with RIPEMD-128).
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800320
Adrian Bunkb6d44342008-07-16 19:28:00 +0800321 It's speed is comparable to SHA1 and there are no known attacks
322 against RIPEMD-160.
Adrian-Ken Rueegsegger534fe2c2008-05-09 21:30:27 +0800323
Adrian Bunkb6d44342008-07-16 19:28:00 +0800324 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
325 See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
Adrian-Ken Rueegsegger534fe2c2008-05-09 21:30:27 +0800326
327config CRYPTO_RMD256
Adrian Bunkb6d44342008-07-16 19:28:00 +0800328 tristate "RIPEMD-256 digest algorithm"
329 select CRYPTO_ALGAPI
330 help
331 RIPEMD-256 is an optional extension of RIPEMD-128 with a
332 256 bit hash. It is intended for applications that require
333 longer hash-results, without needing a larger security level
334 (than RIPEMD-128).
Adrian-Ken Rueegsegger534fe2c2008-05-09 21:30:27 +0800335
Adrian Bunkb6d44342008-07-16 19:28:00 +0800336 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
337 See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
Adrian-Ken Rueegsegger534fe2c2008-05-09 21:30:27 +0800338
339config CRYPTO_RMD320
Adrian Bunkb6d44342008-07-16 19:28:00 +0800340 tristate "RIPEMD-320 digest algorithm"
341 select CRYPTO_ALGAPI
342 help
343 RIPEMD-320 is an optional extension of RIPEMD-160 with a
344 320 bit hash. It is intended for applications that require
345 longer hash-results, without needing a larger security level
346 (than RIPEMD-160).
Adrian-Ken Rueegsegger534fe2c2008-05-09 21:30:27 +0800347
Adrian Bunkb6d44342008-07-16 19:28:00 +0800348 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
349 See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
Adrian-Ken Rueegsegger82798f92008-05-07 22:17:37 +0800350
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800351config CRYPTO_SHA1
352 tristate "SHA1 digest algorithm"
353 select CRYPTO_ALGAPI
354 help
355 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
356
357config CRYPTO_SHA256
358 tristate "SHA224 and SHA256 digest algorithm"
359 select CRYPTO_ALGAPI
360 help
361 SHA256 secure hash standard (DFIPS 180-2).
362
363 This version of SHA implements a 256 bit hash with 128 bits of
364 security against collision attacks.
365
Adrian Bunkb6d44342008-07-16 19:28:00 +0800366 This code also includes SHA-224, a 224 bit hash with 112 bits
367 of security against collision attacks.
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800368
369config CRYPTO_SHA512
370 tristate "SHA384 and SHA512 digest algorithms"
371 select CRYPTO_ALGAPI
372 help
373 SHA512 secure hash standard (DFIPS 180-2).
374
375 This version of SHA implements a 512 bit hash with 256 bits of
376 security against collision attacks.
377
378 This code also includes SHA-384, a 384 bit hash with 192 bits
379 of security against collision attacks.
380
381config CRYPTO_TGR192
382 tristate "Tiger digest algorithms"
383 select CRYPTO_ALGAPI
384 help
385 Tiger hash algorithm 192, 160 and 128-bit hashes
386
387 Tiger is a hash function optimized for 64-bit processors while
388 still having decent performance on 32-bit processors.
389 Tiger was developed by Ross Anderson and Eli Biham.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390
391 See also:
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800392 <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
393
394config CRYPTO_WP512
395 tristate "Whirlpool digest algorithms"
396 select CRYPTO_ALGAPI
397 help
398 Whirlpool hash algorithm 512, 384 and 256-bit hashes
399
400 Whirlpool-512 is part of the NESSIE cryptographic primitives.
401 Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
402
403 See also:
404 <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
405
406comment "Ciphers"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407
408config CRYPTO_AES
409 tristate "AES cipher algorithms"
Herbert Xucce9e062006-08-21 21:08:13 +1000410 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800412 AES cipher algorithms (FIPS-197). AES uses the Rijndael
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 algorithm.
414
415 Rijndael appears to be consistently a very good performer in
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800416 both hardware and software across a wide range of computing
417 environments regardless of its use in feedback or non-feedback
418 modes. Its key setup time is excellent, and its key agility is
419 good. Rijndael's very low memory requirements make it very well
420 suited for restricted-space environments, in which it also
421 demonstrates excellent performance. Rijndael's operations are
422 among the easiest to defend against power and timing attacks.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800424 The AES specifies three key sizes: 128, 192 and 256 bits
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425
426 See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
427
428config CRYPTO_AES_586
429 tristate "AES cipher algorithms (i586)"
Herbert Xucce9e062006-08-21 21:08:13 +1000430 depends on (X86 || UML_X86) && !64BIT
431 select CRYPTO_ALGAPI
Sebastian Siewior5157dea2007-11-10 19:07:16 +0800432 select CRYPTO_AES
Linus Torvalds1da177e2005-04-16 15:20:36 -0700433 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800434 AES cipher algorithms (FIPS-197). AES uses the Rijndael
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 algorithm.
436
437 Rijndael appears to be consistently a very good performer in
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800438 both hardware and software across a wide range of computing
439 environments regardless of its use in feedback or non-feedback
440 modes. Its key setup time is excellent, and its key agility is
441 good. Rijndael's very low memory requirements make it very well
442 suited for restricted-space environments, in which it also
443 demonstrates excellent performance. Rijndael's operations are
444 among the easiest to defend against power and timing attacks.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800446 The AES specifies three key sizes: 128, 192 and 256 bits
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447
448 See <http://csrc.nist.gov/encryption/aes/> for more information.
449
Andreas Steinmetza2a892a2005-07-06 13:55:00 -0700450config CRYPTO_AES_X86_64
451 tristate "AES cipher algorithms (x86_64)"
Herbert Xucce9e062006-08-21 21:08:13 +1000452 depends on (X86 || UML_X86) && 64BIT
453 select CRYPTO_ALGAPI
Sebastian Siewior81190b32007-11-08 21:25:04 +0800454 select CRYPTO_AES
Andreas Steinmetza2a892a2005-07-06 13:55:00 -0700455 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800456 AES cipher algorithms (FIPS-197). AES uses the Rijndael
Andreas Steinmetza2a892a2005-07-06 13:55:00 -0700457 algorithm.
458
459 Rijndael appears to be consistently a very good performer in
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800460 both hardware and software across a wide range of computing
461 environments regardless of its use in feedback or non-feedback
462 modes. Its key setup time is excellent, and its key agility is
463 good. Rijndael's very low memory requirements make it very well
464 suited for restricted-space environments, in which it also
465 demonstrates excellent performance. Rijndael's operations are
466 among the easiest to defend against power and timing attacks.
Andreas Steinmetza2a892a2005-07-06 13:55:00 -0700467
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800468 The AES specifies three key sizes: 128, 192 and 256 bits
Andreas Steinmetza2a892a2005-07-06 13:55:00 -0700469
470 See <http://csrc.nist.gov/encryption/aes/> for more information.
471
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800472config CRYPTO_ANUBIS
473 tristate "Anubis cipher algorithm"
474 select CRYPTO_ALGAPI
475 help
476 Anubis cipher algorithm.
477
478 Anubis is a variable key length cipher which can use keys from
479 128 bits to 320 bits in length. It was evaluated as a entrant
480 in the NESSIE competition.
481
482 See also:
483 <https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
484 <http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
485
486config CRYPTO_ARC4
487 tristate "ARC4 cipher algorithm"
488 select CRYPTO_ALGAPI
489 help
490 ARC4 cipher algorithm.
491
492 ARC4 is a stream cipher using keys ranging from 8 bits to 2048
493 bits in length. This algorithm is required for driver-based
494 WEP, but it should not be for other purposes because of the
495 weakness of the algorithm.
496
497config CRYPTO_BLOWFISH
498 tristate "Blowfish cipher algorithm"
499 select CRYPTO_ALGAPI
500 help
501 Blowfish cipher algorithm, by Bruce Schneier.
502
503 This is a variable key length cipher which can use keys from 32
504 bits to 448 bits in length. It's fast, simple and specifically
505 designed for use on "large microprocessors".
506
507 See also:
508 <http://www.schneier.com/blowfish.html>
509
510config CRYPTO_CAMELLIA
511 tristate "Camellia cipher algorithms"
512 depends on CRYPTO
513 select CRYPTO_ALGAPI
514 help
515 Camellia cipher algorithms module.
516
517 Camellia is a symmetric key block cipher developed jointly
518 at NTT and Mitsubishi Electric Corporation.
519
520 The Camellia specifies three key sizes: 128, 192 and 256 bits.
521
522 See also:
523 <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>
524
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525config CRYPTO_CAST5
526 tristate "CAST5 (CAST-128) cipher algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000527 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700528 help
529 The CAST5 encryption algorithm (synonymous with CAST-128) is
530 described in RFC2144.
531
532config CRYPTO_CAST6
533 tristate "CAST6 (CAST-256) cipher algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000534 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535 help
536 The CAST6 encryption algorithm (synonymous with CAST-256) is
537 described in RFC2612.
538
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800539config CRYPTO_DES
540 tristate "DES and Triple DES EDE cipher algorithms"
Herbert Xucce9e062006-08-21 21:08:13 +1000541 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800543 DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800545config CRYPTO_FCRYPT
546 tristate "FCrypt cipher algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000547 select CRYPTO_ALGAPI
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800548 select CRYPTO_BLKCIPHER
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549 help
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800550 FCrypt algorithm used by RxRPC.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551
552config CRYPTO_KHAZAD
553 tristate "Khazad cipher algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000554 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555 help
556 Khazad cipher algorithm.
557
558 Khazad was a finalist in the initial NESSIE competition. It is
559 an algorithm optimized for 64-bit processors with good performance
560 on 32-bit processors. Khazad uses an 128 bit key size.
561
562 See also:
563 <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
564
Tan Swee Heng2407d602007-11-23 19:45:00 +0800565config CRYPTO_SALSA20
566 tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)"
567 depends on EXPERIMENTAL
568 select CRYPTO_BLKCIPHER
569 help
570 Salsa20 stream cipher algorithm.
571
572 Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
573 Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
574
575 The Salsa20 stream cipher algorithm is designed by Daniel J.
576 Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700577
Tan Swee Heng974e4b72007-12-10 15:52:56 +0800578config CRYPTO_SALSA20_586
579 tristate "Salsa20 stream cipher algorithm (i586) (EXPERIMENTAL)"
580 depends on (X86 || UML_X86) && !64BIT
581 depends on EXPERIMENTAL
582 select CRYPTO_BLKCIPHER
Tan Swee Heng974e4b72007-12-10 15:52:56 +0800583 help
584 Salsa20 stream cipher algorithm.
585
586 Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
587 Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
588
589 The Salsa20 stream cipher algorithm is designed by Daniel J.
590 Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
591
Tan Swee Heng9a7dafb2007-12-18 00:04:40 +0800592config CRYPTO_SALSA20_X86_64
593 tristate "Salsa20 stream cipher algorithm (x86_64) (EXPERIMENTAL)"
594 depends on (X86 || UML_X86) && 64BIT
595 depends on EXPERIMENTAL
596 select CRYPTO_BLKCIPHER
Tan Swee Heng9a7dafb2007-12-18 00:04:40 +0800597 help
598 Salsa20 stream cipher algorithm.
599
600 Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
601 Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
602
603 The Salsa20 stream cipher algorithm is designed by Daniel J.
604 Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
605
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800606config CRYPTO_SEED
607 tristate "SEED cipher algorithm"
608 select CRYPTO_ALGAPI
609 help
610 SEED cipher algorithm (RFC4269).
611
612 SEED is a 128-bit symmetric key block cipher that has been
613 developed by KISA (Korea Information Security Agency) as a
614 national standard encryption algorithm of the Republic of Korea.
615 It is a 16 round block cipher with the key size of 128 bit.
616
617 See also:
618 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>
619
620config CRYPTO_SERPENT
621 tristate "Serpent cipher algorithm"
622 select CRYPTO_ALGAPI
623 help
624 Serpent cipher algorithm, by Anderson, Biham & Knudsen.
625
626 Keys are allowed to be from 0 to 256 bits in length, in steps
627 of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
628 variant of Serpent for compatibility with old kerneli.org code.
629
630 See also:
631 <http://www.cl.cam.ac.uk/~rja14/serpent.html>
632
633config CRYPTO_TEA
634 tristate "TEA, XTEA and XETA cipher algorithms"
635 select CRYPTO_ALGAPI
636 help
637 TEA cipher algorithm.
638
639 Tiny Encryption Algorithm is a simple cipher that uses
640 many rounds for security. It is very fast and uses
641 little memory.
642
643 Xtendend Tiny Encryption Algorithm is a modification to
644 the TEA algorithm to address a potential key weakness
645 in the TEA algorithm.
646
647 Xtendend Encryption Tiny Algorithm is a mis-implementation
648 of the XTEA algorithm for compatibility purposes.
649
650config CRYPTO_TWOFISH
651 tristate "Twofish cipher algorithm"
652 select CRYPTO_ALGAPI
653 select CRYPTO_TWOFISH_COMMON
654 help
655 Twofish cipher algorithm.
656
657 Twofish was submitted as an AES (Advanced Encryption Standard)
658 candidate cipher by researchers at CounterPane Systems. It is a
659 16 round block cipher supporting key sizes of 128, 192, and 256
660 bits.
661
662 See also:
663 <http://www.schneier.com/twofish.html>
664
665config CRYPTO_TWOFISH_COMMON
666 tristate
667 help
668 Common parts of the Twofish cipher algorithm shared by the
669 generic c and the assembler implementations.
670
671config CRYPTO_TWOFISH_586
672 tristate "Twofish cipher algorithms (i586)"
673 depends on (X86 || UML_X86) && !64BIT
674 select CRYPTO_ALGAPI
675 select CRYPTO_TWOFISH_COMMON
676 help
677 Twofish cipher algorithm.
678
679 Twofish was submitted as an AES (Advanced Encryption Standard)
680 candidate cipher by researchers at CounterPane Systems. It is a
681 16 round block cipher supporting key sizes of 128, 192, and 256
682 bits.
683
684 See also:
685 <http://www.schneier.com/twofish.html>
686
687config CRYPTO_TWOFISH_X86_64
688 tristate "Twofish cipher algorithm (x86_64)"
689 depends on (X86 || UML_X86) && 64BIT
690 select CRYPTO_ALGAPI
691 select CRYPTO_TWOFISH_COMMON
692 help
693 Twofish cipher algorithm (x86_64).
694
695 Twofish was submitted as an AES (Advanced Encryption Standard)
696 candidate cipher by researchers at CounterPane Systems. It is a
697 16 round block cipher supporting key sizes of 128, 192, and 256
698 bits.
699
700 See also:
701 <http://www.schneier.com/twofish.html>
702
703comment "Compression"
704
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705config CRYPTO_DEFLATE
706 tristate "Deflate compression algorithm"
Herbert Xucce9e062006-08-21 21:08:13 +1000707 select CRYPTO_ALGAPI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 select ZLIB_INFLATE
709 select ZLIB_DEFLATE
710 help
711 This is the Deflate algorithm (RFC1951), specified for use in
712 IPSec with the IPCOMP protocol (RFC3173, RFC2394).
Sebastian Siewior584fffc2008-04-05 21:04:48 +0800713
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714 You will most probably want this if using IPSec.
715
Zoltan Sogor0b77abb2007-12-07 16:53:23 +0800716config CRYPTO_LZO
717 tristate "LZO compression algorithm"
718 select CRYPTO_ALGAPI
719 select LZO_COMPRESS
720 select LZO_DECOMPRESS
721 help
722 This is the LZO algorithm.
723
Neil Horman17f0f4a2008-08-14 22:15:52 +1000724comment "Random Number Generation"
725
726config CRYPTO_ANSI_CPRNG
727 tristate "Pseudo Random Number Generation for Cryptographic modules"
728 select CRYPTO_AES
729 select CRYPTO_RNG
730 select CRYPTO_FIPS
731 help
732 This option enables the generic pseudo random number generator
733 for cryptographic modules. Uses the Algorithm specified in
734 ANSI X9.31 A.2.4
735
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736source "drivers/crypto/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737
Herbert Xucce9e062006-08-21 21:08:13 +1000738endif # if CRYPTO