Merge branch 'sh/pm-runtime' into sh-latest
[deliverable/linux.git] / crypto / Kconfig
1 #
2 # Generic algorithms support
3 #
4 config XOR_BLOCKS
5 tristate
6
7 #
8 # async_tx api: hardware offloaded memory transfer/transform support
9 #
10 source "crypto/async_tx/Kconfig"
11
12 #
13 # Cryptographic API Configuration
14 #
15 menuconfig CRYPTO
16 tristate "Cryptographic API"
17 help
18 This option provides the core Cryptographic API.
19
20 if CRYPTO
21
22 comment "Crypto core or helper"
23
24 config CRYPTO_FIPS
25 bool "FIPS 200 compliance"
26 depends on CRYPTO_ANSI_CPRNG && !CRYPTO_MANAGER_DISABLE_TESTS
27 help
28 This options enables the fips boot option which is
29 required if you want to system to operate in a FIPS 200
30 certification. You should say no unless you know what
31 this is.
32
33 config CRYPTO_ALGAPI
34 tristate
35 select CRYPTO_ALGAPI2
36 help
37 This option provides the API for cryptographic algorithms.
38
39 config CRYPTO_ALGAPI2
40 tristate
41
42 config CRYPTO_AEAD
43 tristate
44 select CRYPTO_AEAD2
45 select CRYPTO_ALGAPI
46
47 config CRYPTO_AEAD2
48 tristate
49 select CRYPTO_ALGAPI2
50
51 config CRYPTO_BLKCIPHER
52 tristate
53 select CRYPTO_BLKCIPHER2
54 select CRYPTO_ALGAPI
55
56 config CRYPTO_BLKCIPHER2
57 tristate
58 select CRYPTO_ALGAPI2
59 select CRYPTO_RNG2
60 select CRYPTO_WORKQUEUE
61
62 config CRYPTO_HASH
63 tristate
64 select CRYPTO_HASH2
65 select CRYPTO_ALGAPI
66
67 config CRYPTO_HASH2
68 tristate
69 select CRYPTO_ALGAPI2
70
71 config CRYPTO_RNG
72 tristate
73 select CRYPTO_RNG2
74 select CRYPTO_ALGAPI
75
76 config CRYPTO_RNG2
77 tristate
78 select CRYPTO_ALGAPI2
79
80 config CRYPTO_PCOMP
81 tristate
82 select CRYPTO_PCOMP2
83 select CRYPTO_ALGAPI
84
85 config CRYPTO_PCOMP2
86 tristate
87 select CRYPTO_ALGAPI2
88
89 config CRYPTO_MANAGER
90 tristate "Cryptographic algorithm manager"
91 select CRYPTO_MANAGER2
92 help
93 Create default cryptographic template instantiations such as
94 cbc(aes).
95
96 config CRYPTO_MANAGER2
97 def_tristate CRYPTO_MANAGER || (CRYPTO_MANAGER!=n && CRYPTO_ALGAPI=y)
98 select CRYPTO_AEAD2
99 select CRYPTO_HASH2
100 select CRYPTO_BLKCIPHER2
101 select CRYPTO_PCOMP2
102
103 config CRYPTO_USER
104 tristate "Userspace cryptographic algorithm configuration"
105 depends on NET
106 select CRYPTO_MANAGER
107 help
108 Userapace configuration for cryptographic instantiations such as
109 cbc(aes).
110
111 config CRYPTO_MANAGER_DISABLE_TESTS
112 bool "Disable run-time self tests"
113 default y
114 depends on CRYPTO_MANAGER2
115 help
116 Disable run-time self tests that normally take place at
117 algorithm registration.
118
119 config CRYPTO_GF128MUL
120 tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
121 help
122 Efficient table driven implementation of multiplications in the
123 field GF(2^128). This is needed by some cypher modes. This
124 option will be selected automatically if you select such a
125 cipher mode. Only select this option by hand if you expect to load
126 an external module that requires these functions.
127
128 config CRYPTO_NULL
129 tristate "Null algorithms"
130 select CRYPTO_ALGAPI
131 select CRYPTO_BLKCIPHER
132 select CRYPTO_HASH
133 help
134 These are 'Null' algorithms, used by IPsec, which do nothing.
135
136 config CRYPTO_PCRYPT
137 tristate "Parallel crypto engine (EXPERIMENTAL)"
138 depends on SMP && EXPERIMENTAL
139 select PADATA
140 select CRYPTO_MANAGER
141 select CRYPTO_AEAD
142 help
143 This converts an arbitrary crypto algorithm into a parallel
144 algorithm that executes in kernel threads.
145
146 config CRYPTO_WORKQUEUE
147 tristate
148
149 config CRYPTO_CRYPTD
150 tristate "Software async crypto daemon"
151 select CRYPTO_BLKCIPHER
152 select CRYPTO_HASH
153 select CRYPTO_MANAGER
154 select CRYPTO_WORKQUEUE
155 help
156 This is a generic software asynchronous crypto daemon that
157 converts an arbitrary synchronous software crypto algorithm
158 into an asynchronous algorithm that executes in a kernel thread.
159
160 config CRYPTO_AUTHENC
161 tristate "Authenc support"
162 select CRYPTO_AEAD
163 select CRYPTO_BLKCIPHER
164 select CRYPTO_MANAGER
165 select CRYPTO_HASH
166 help
167 Authenc: Combined mode wrapper for IPsec.
168 This is required for IPSec.
169
170 config CRYPTO_TEST
171 tristate "Testing module"
172 depends on m
173 select CRYPTO_MANAGER
174 help
175 Quick & dirty crypto test module.
176
177 comment "Authenticated Encryption with Associated Data"
178
179 config CRYPTO_CCM
180 tristate "CCM support"
181 select CRYPTO_CTR
182 select CRYPTO_AEAD
183 help
184 Support for Counter with CBC MAC. Required for IPsec.
185
186 config CRYPTO_GCM
187 tristate "GCM/GMAC support"
188 select CRYPTO_CTR
189 select CRYPTO_AEAD
190 select CRYPTO_GHASH
191 help
192 Support for Galois/Counter Mode (GCM) and Galois Message
193 Authentication Code (GMAC). Required for IPSec.
194
195 config CRYPTO_SEQIV
196 tristate "Sequence Number IV Generator"
197 select CRYPTO_AEAD
198 select CRYPTO_BLKCIPHER
199 select CRYPTO_RNG
200 help
201 This IV generator generates an IV based on a sequence number by
202 xoring it with a salt. This algorithm is mainly useful for CTR
203
204 comment "Block modes"
205
206 config CRYPTO_CBC
207 tristate "CBC support"
208 select CRYPTO_BLKCIPHER
209 select CRYPTO_MANAGER
210 help
211 CBC: Cipher Block Chaining mode
212 This block cipher algorithm is required for IPSec.
213
214 config CRYPTO_CTR
215 tristate "CTR support"
216 select CRYPTO_BLKCIPHER
217 select CRYPTO_SEQIV
218 select CRYPTO_MANAGER
219 help
220 CTR: Counter mode
221 This block cipher algorithm is required for IPSec.
222
223 config CRYPTO_CTS
224 tristate "CTS support"
225 select CRYPTO_BLKCIPHER
226 help
227 CTS: Cipher Text Stealing
228 This is the Cipher Text Stealing mode as described by
229 Section 8 of rfc2040 and referenced by rfc3962.
230 (rfc3962 includes errata information in its Appendix A)
231 This mode is required for Kerberos gss mechanism support
232 for AES encryption.
233
234 config CRYPTO_ECB
235 tristate "ECB support"
236 select CRYPTO_BLKCIPHER
237 select CRYPTO_MANAGER
238 help
239 ECB: Electronic CodeBook mode
240 This is the simplest block cipher algorithm. It simply encrypts
241 the input block by block.
242
243 config CRYPTO_LRW
244 tristate "LRW support (EXPERIMENTAL)"
245 depends on EXPERIMENTAL
246 select CRYPTO_BLKCIPHER
247 select CRYPTO_MANAGER
248 select CRYPTO_GF128MUL
249 help
250 LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
251 narrow block cipher mode for dm-crypt. Use it with cipher
252 specification string aes-lrw-benbi, the key must be 256, 320 or 384.
253 The first 128, 192 or 256 bits in the key are used for AES and the
254 rest is used to tie each cipher block to its logical position.
255
256 config CRYPTO_PCBC
257 tristate "PCBC support"
258 select CRYPTO_BLKCIPHER
259 select CRYPTO_MANAGER
260 help
261 PCBC: Propagating Cipher Block Chaining mode
262 This block cipher algorithm is required for RxRPC.
263
264 config CRYPTO_XTS
265 tristate "XTS support (EXPERIMENTAL)"
266 depends on EXPERIMENTAL
267 select CRYPTO_BLKCIPHER
268 select CRYPTO_MANAGER
269 select CRYPTO_GF128MUL
270 help
271 XTS: IEEE1619/D16 narrow block cipher use with aes-xts-plain,
272 key size 256, 384 or 512 bits. This implementation currently
273 can't handle a sectorsize which is not a multiple of 16 bytes.
274
275 comment "Hash modes"
276
277 config CRYPTO_HMAC
278 tristate "HMAC support"
279 select CRYPTO_HASH
280 select CRYPTO_MANAGER
281 help
282 HMAC: Keyed-Hashing for Message Authentication (RFC2104).
283 This is required for IPSec.
284
285 config CRYPTO_XCBC
286 tristate "XCBC support"
287 depends on EXPERIMENTAL
288 select CRYPTO_HASH
289 select CRYPTO_MANAGER
290 help
291 XCBC: Keyed-Hashing with encryption algorithm
292 http://www.ietf.org/rfc/rfc3566.txt
293 http://csrc.nist.gov/encryption/modes/proposedmodes/
294 xcbc-mac/xcbc-mac-spec.pdf
295
296 config CRYPTO_VMAC
297 tristate "VMAC support"
298 depends on EXPERIMENTAL
299 select CRYPTO_HASH
300 select CRYPTO_MANAGER
301 help
302 VMAC is a message authentication algorithm designed for
303 very high speed on 64-bit architectures.
304
305 See also:
306 <http://fastcrypto.org/vmac>
307
308 comment "Digest"
309
310 config CRYPTO_CRC32C
311 tristate "CRC32c CRC algorithm"
312 select CRYPTO_HASH
313 help
314 Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
315 by iSCSI for header and data digests and by others.
316 See Castagnoli93. Module will be crc32c.
317
318 config CRYPTO_CRC32C_INTEL
319 tristate "CRC32c INTEL hardware acceleration"
320 depends on X86
321 select CRYPTO_HASH
322 help
323 In Intel processor with SSE4.2 supported, the processor will
324 support CRC32C implementation using hardware accelerated CRC32
325 instruction. This option will create 'crc32c-intel' module,
326 which will enable any routine to use the CRC32 instruction to
327 gain performance compared with software implementation.
328 Module will be crc32c-intel.
329
330 config CRYPTO_GHASH
331 tristate "GHASH digest algorithm"
332 select CRYPTO_GF128MUL
333 help
334 GHASH is message digest algorithm for GCM (Galois/Counter Mode).
335
336 config CRYPTO_MD4
337 tristate "MD4 digest algorithm"
338 select CRYPTO_HASH
339 help
340 MD4 message digest algorithm (RFC1320).
341
342 config CRYPTO_MD5
343 tristate "MD5 digest algorithm"
344 select CRYPTO_HASH
345 help
346 MD5 message digest algorithm (RFC1321).
347
348 config CRYPTO_MICHAEL_MIC
349 tristate "Michael MIC keyed digest algorithm"
350 select CRYPTO_HASH
351 help
352 Michael MIC is used for message integrity protection in TKIP
353 (IEEE 802.11i). This algorithm is required for TKIP, but it
354 should not be used for other purposes because of the weakness
355 of the algorithm.
356
357 config CRYPTO_RMD128
358 tristate "RIPEMD-128 digest algorithm"
359 select CRYPTO_HASH
360 help
361 RIPEMD-128 (ISO/IEC 10118-3:2004).
362
363 RIPEMD-128 is a 128-bit cryptographic hash function. It should only
364 be used as a secure replacement for RIPEMD. For other use cases,
365 RIPEMD-160 should be used.
366
367 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
368 See <http://homes.esat.kuleuven.be/~bosselae/ripemd160.html>
369
370 config CRYPTO_RMD160
371 tristate "RIPEMD-160 digest algorithm"
372 select CRYPTO_HASH
373 help
374 RIPEMD-160 (ISO/IEC 10118-3:2004).
375
376 RIPEMD-160 is a 160-bit cryptographic hash function. It is intended
377 to be used as a secure replacement for the 128-bit hash functions
378 MD4, MD5 and it's predecessor RIPEMD
379 (not to be confused with RIPEMD-128).
380
381 It's speed is comparable to SHA1 and there are no known attacks
382 against RIPEMD-160.
383
384 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
385 See <http://homes.esat.kuleuven.be/~bosselae/ripemd160.html>
386
387 config CRYPTO_RMD256
388 tristate "RIPEMD-256 digest algorithm"
389 select CRYPTO_HASH
390 help
391 RIPEMD-256 is an optional extension of RIPEMD-128 with a
392 256 bit hash. It is intended for applications that require
393 longer hash-results, without needing a larger security level
394 (than RIPEMD-128).
395
396 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
397 See <http://homes.esat.kuleuven.be/~bosselae/ripemd160.html>
398
399 config CRYPTO_RMD320
400 tristate "RIPEMD-320 digest algorithm"
401 select CRYPTO_HASH
402 help
403 RIPEMD-320 is an optional extension of RIPEMD-160 with a
404 320 bit hash. It is intended for applications that require
405 longer hash-results, without needing a larger security level
406 (than RIPEMD-160).
407
408 Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
409 See <http://homes.esat.kuleuven.be/~bosselae/ripemd160.html>
410
411 config CRYPTO_SHA1
412 tristate "SHA1 digest algorithm"
413 select CRYPTO_HASH
414 help
415 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
416
417 config CRYPTO_SHA1_SSSE3
418 tristate "SHA1 digest algorithm (SSSE3/AVX)"
419 depends on X86 && 64BIT
420 select CRYPTO_SHA1
421 select CRYPTO_HASH
422 help
423 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
424 using Supplemental SSE3 (SSSE3) instructions or Advanced Vector
425 Extensions (AVX), when available.
426
427 config CRYPTO_SHA256
428 tristate "SHA224 and SHA256 digest algorithm"
429 select CRYPTO_HASH
430 help
431 SHA256 secure hash standard (DFIPS 180-2).
432
433 This version of SHA implements a 256 bit hash with 128 bits of
434 security against collision attacks.
435
436 This code also includes SHA-224, a 224 bit hash with 112 bits
437 of security against collision attacks.
438
439 config CRYPTO_SHA512
440 tristate "SHA384 and SHA512 digest algorithms"
441 select CRYPTO_HASH
442 help
443 SHA512 secure hash standard (DFIPS 180-2).
444
445 This version of SHA implements a 512 bit hash with 256 bits of
446 security against collision attacks.
447
448 This code also includes SHA-384, a 384 bit hash with 192 bits
449 of security against collision attacks.
450
451 config CRYPTO_TGR192
452 tristate "Tiger digest algorithms"
453 select CRYPTO_HASH
454 help
455 Tiger hash algorithm 192, 160 and 128-bit hashes
456
457 Tiger is a hash function optimized for 64-bit processors while
458 still having decent performance on 32-bit processors.
459 Tiger was developed by Ross Anderson and Eli Biham.
460
461 See also:
462 <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
463
464 config CRYPTO_WP512
465 tristate "Whirlpool digest algorithms"
466 select CRYPTO_HASH
467 help
468 Whirlpool hash algorithm 512, 384 and 256-bit hashes
469
470 Whirlpool-512 is part of the NESSIE cryptographic primitives.
471 Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
472
473 See also:
474 <http://www.larc.usp.br/~pbarreto/WhirlpoolPage.html>
475
476 config CRYPTO_GHASH_CLMUL_NI_INTEL
477 tristate "GHASH digest algorithm (CLMUL-NI accelerated)"
478 depends on X86 && 64BIT
479 select CRYPTO_CRYPTD
480 help
481 GHASH is message digest algorithm for GCM (Galois/Counter Mode).
482 The implementation is accelerated by CLMUL-NI of Intel.
483
484 comment "Ciphers"
485
486 config CRYPTO_AES
487 tristate "AES cipher algorithms"
488 select CRYPTO_ALGAPI
489 help
490 AES cipher algorithms (FIPS-197). AES uses the Rijndael
491 algorithm.
492
493 Rijndael appears to be consistently a very good performer in
494 both hardware and software across a wide range of computing
495 environments regardless of its use in feedback or non-feedback
496 modes. Its key setup time is excellent, and its key agility is
497 good. Rijndael's very low memory requirements make it very well
498 suited for restricted-space environments, in which it also
499 demonstrates excellent performance. Rijndael's operations are
500 among the easiest to defend against power and timing attacks.
501
502 The AES specifies three key sizes: 128, 192 and 256 bits
503
504 See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
505
506 config CRYPTO_AES_586
507 tristate "AES cipher algorithms (i586)"
508 depends on (X86 || UML_X86) && !64BIT
509 select CRYPTO_ALGAPI
510 select CRYPTO_AES
511 help
512 AES cipher algorithms (FIPS-197). AES uses the Rijndael
513 algorithm.
514
515 Rijndael appears to be consistently a very good performer in
516 both hardware and software across a wide range of computing
517 environments regardless of its use in feedback or non-feedback
518 modes. Its key setup time is excellent, and its key agility is
519 good. Rijndael's very low memory requirements make it very well
520 suited for restricted-space environments, in which it also
521 demonstrates excellent performance. Rijndael's operations are
522 among the easiest to defend against power and timing attacks.
523
524 The AES specifies three key sizes: 128, 192 and 256 bits
525
526 See <http://csrc.nist.gov/encryption/aes/> for more information.
527
528 config CRYPTO_AES_X86_64
529 tristate "AES cipher algorithms (x86_64)"
530 depends on (X86 || UML_X86) && 64BIT
531 select CRYPTO_ALGAPI
532 select CRYPTO_AES
533 help
534 AES cipher algorithms (FIPS-197). AES uses the Rijndael
535 algorithm.
536
537 Rijndael appears to be consistently a very good performer in
538 both hardware and software across a wide range of computing
539 environments regardless of its use in feedback or non-feedback
540 modes. Its key setup time is excellent, and its key agility is
541 good. Rijndael's very low memory requirements make it very well
542 suited for restricted-space environments, in which it also
543 demonstrates excellent performance. Rijndael's operations are
544 among the easiest to defend against power and timing attacks.
545
546 The AES specifies three key sizes: 128, 192 and 256 bits
547
548 See <http://csrc.nist.gov/encryption/aes/> for more information.
549
550 config CRYPTO_AES_NI_INTEL
551 tristate "AES cipher algorithms (AES-NI)"
552 depends on X86
553 select CRYPTO_AES_X86_64 if 64BIT
554 select CRYPTO_AES_586 if !64BIT
555 select CRYPTO_CRYPTD
556 select CRYPTO_ALGAPI
557 help
558 Use Intel AES-NI instructions for AES algorithm.
559
560 AES cipher algorithms (FIPS-197). AES uses the Rijndael
561 algorithm.
562
563 Rijndael appears to be consistently a very good performer in
564 both hardware and software across a wide range of computing
565 environments regardless of its use in feedback or non-feedback
566 modes. Its key setup time is excellent, and its key agility is
567 good. Rijndael's very low memory requirements make it very well
568 suited for restricted-space environments, in which it also
569 demonstrates excellent performance. Rijndael's operations are
570 among the easiest to defend against power and timing attacks.
571
572 The AES specifies three key sizes: 128, 192 and 256 bits
573
574 See <http://csrc.nist.gov/encryption/aes/> for more information.
575
576 In addition to AES cipher algorithm support, the acceleration
577 for some popular block cipher mode is supported too, including
578 ECB, CBC, LRW, PCBC, XTS. The 64 bit version has additional
579 acceleration for CTR.
580
581 config CRYPTO_ANUBIS
582 tristate "Anubis cipher algorithm"
583 select CRYPTO_ALGAPI
584 help
585 Anubis cipher algorithm.
586
587 Anubis is a variable key length cipher which can use keys from
588 128 bits to 320 bits in length. It was evaluated as a entrant
589 in the NESSIE competition.
590
591 See also:
592 <https://www.cosic.esat.kuleuven.be/nessie/reports/>
593 <http://www.larc.usp.br/~pbarreto/AnubisPage.html>
594
595 config CRYPTO_ARC4
596 tristate "ARC4 cipher algorithm"
597 select CRYPTO_ALGAPI
598 help
599 ARC4 cipher algorithm.
600
601 ARC4 is a stream cipher using keys ranging from 8 bits to 2048
602 bits in length. This algorithm is required for driver-based
603 WEP, but it should not be for other purposes because of the
604 weakness of the algorithm.
605
606 config CRYPTO_BLOWFISH
607 tristate "Blowfish cipher algorithm"
608 select CRYPTO_ALGAPI
609 select CRYPTO_BLOWFISH_COMMON
610 help
611 Blowfish cipher algorithm, by Bruce Schneier.
612
613 This is a variable key length cipher which can use keys from 32
614 bits to 448 bits in length. It's fast, simple and specifically
615 designed for use on "large microprocessors".
616
617 See also:
618 <http://www.schneier.com/blowfish.html>
619
620 config CRYPTO_BLOWFISH_COMMON
621 tristate
622 help
623 Common parts of the Blowfish cipher algorithm shared by the
624 generic c and the assembler implementations.
625
626 See also:
627 <http://www.schneier.com/blowfish.html>
628
629 config CRYPTO_BLOWFISH_X86_64
630 tristate "Blowfish cipher algorithm (x86_64)"
631 depends on (X86 || UML_X86) && 64BIT
632 select CRYPTO_ALGAPI
633 select CRYPTO_BLOWFISH_COMMON
634 help
635 Blowfish cipher algorithm (x86_64), by Bruce Schneier.
636
637 This is a variable key length cipher which can use keys from 32
638 bits to 448 bits in length. It's fast, simple and specifically
639 designed for use on "large microprocessors".
640
641 See also:
642 <http://www.schneier.com/blowfish.html>
643
644 config CRYPTO_CAMELLIA
645 tristate "Camellia cipher algorithms"
646 depends on CRYPTO
647 select CRYPTO_ALGAPI
648 help
649 Camellia cipher algorithms module.
650
651 Camellia is a symmetric key block cipher developed jointly
652 at NTT and Mitsubishi Electric Corporation.
653
654 The Camellia specifies three key sizes: 128, 192 and 256 bits.
655
656 See also:
657 <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>
658
659 config CRYPTO_CAST5
660 tristate "CAST5 (CAST-128) cipher algorithm"
661 select CRYPTO_ALGAPI
662 help
663 The CAST5 encryption algorithm (synonymous with CAST-128) is
664 described in RFC2144.
665
666 config CRYPTO_CAST6
667 tristate "CAST6 (CAST-256) cipher algorithm"
668 select CRYPTO_ALGAPI
669 help
670 The CAST6 encryption algorithm (synonymous with CAST-256) is
671 described in RFC2612.
672
673 config CRYPTO_DES
674 tristate "DES and Triple DES EDE cipher algorithms"
675 select CRYPTO_ALGAPI
676 help
677 DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
678
679 config CRYPTO_FCRYPT
680 tristate "FCrypt cipher algorithm"
681 select CRYPTO_ALGAPI
682 select CRYPTO_BLKCIPHER
683 help
684 FCrypt algorithm used by RxRPC.
685
686 config CRYPTO_KHAZAD
687 tristate "Khazad cipher algorithm"
688 select CRYPTO_ALGAPI
689 help
690 Khazad cipher algorithm.
691
692 Khazad was a finalist in the initial NESSIE competition. It is
693 an algorithm optimized for 64-bit processors with good performance
694 on 32-bit processors. Khazad uses an 128 bit key size.
695
696 See also:
697 <http://www.larc.usp.br/~pbarreto/KhazadPage.html>
698
699 config CRYPTO_SALSA20
700 tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)"
701 depends on EXPERIMENTAL
702 select CRYPTO_BLKCIPHER
703 help
704 Salsa20 stream cipher algorithm.
705
706 Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
707 Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
708
709 The Salsa20 stream cipher algorithm is designed by Daniel J.
710 Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
711
712 config CRYPTO_SALSA20_586
713 tristate "Salsa20 stream cipher algorithm (i586) (EXPERIMENTAL)"
714 depends on (X86 || UML_X86) && !64BIT
715 depends on EXPERIMENTAL
716 select CRYPTO_BLKCIPHER
717 help
718 Salsa20 stream cipher algorithm.
719
720 Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
721 Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
722
723 The Salsa20 stream cipher algorithm is designed by Daniel J.
724 Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
725
726 config CRYPTO_SALSA20_X86_64
727 tristate "Salsa20 stream cipher algorithm (x86_64) (EXPERIMENTAL)"
728 depends on (X86 || UML_X86) && 64BIT
729 depends on EXPERIMENTAL
730 select CRYPTO_BLKCIPHER
731 help
732 Salsa20 stream cipher algorithm.
733
734 Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
735 Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
736
737 The Salsa20 stream cipher algorithm is designed by Daniel J.
738 Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
739
740 config CRYPTO_SEED
741 tristate "SEED cipher algorithm"
742 select CRYPTO_ALGAPI
743 help
744 SEED cipher algorithm (RFC4269).
745
746 SEED is a 128-bit symmetric key block cipher that has been
747 developed by KISA (Korea Information Security Agency) as a
748 national standard encryption algorithm of the Republic of Korea.
749 It is a 16 round block cipher with the key size of 128 bit.
750
751 See also:
752 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>
753
754 config CRYPTO_SERPENT
755 tristate "Serpent cipher algorithm"
756 select CRYPTO_ALGAPI
757 help
758 Serpent cipher algorithm, by Anderson, Biham & Knudsen.
759
760 Keys are allowed to be from 0 to 256 bits in length, in steps
761 of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
762 variant of Serpent for compatibility with old kerneli.org code.
763
764 See also:
765 <http://www.cl.cam.ac.uk/~rja14/serpent.html>
766
767 config CRYPTO_TEA
768 tristate "TEA, XTEA and XETA cipher algorithms"
769 select CRYPTO_ALGAPI
770 help
771 TEA cipher algorithm.
772
773 Tiny Encryption Algorithm is a simple cipher that uses
774 many rounds for security. It is very fast and uses
775 little memory.
776
777 Xtendend Tiny Encryption Algorithm is a modification to
778 the TEA algorithm to address a potential key weakness
779 in the TEA algorithm.
780
781 Xtendend Encryption Tiny Algorithm is a mis-implementation
782 of the XTEA algorithm for compatibility purposes.
783
784 config CRYPTO_TWOFISH
785 tristate "Twofish cipher algorithm"
786 select CRYPTO_ALGAPI
787 select CRYPTO_TWOFISH_COMMON
788 help
789 Twofish cipher algorithm.
790
791 Twofish was submitted as an AES (Advanced Encryption Standard)
792 candidate cipher by researchers at CounterPane Systems. It is a
793 16 round block cipher supporting key sizes of 128, 192, and 256
794 bits.
795
796 See also:
797 <http://www.schneier.com/twofish.html>
798
799 config CRYPTO_TWOFISH_COMMON
800 tristate
801 help
802 Common parts of the Twofish cipher algorithm shared by the
803 generic c and the assembler implementations.
804
805 config CRYPTO_TWOFISH_586
806 tristate "Twofish cipher algorithms (i586)"
807 depends on (X86 || UML_X86) && !64BIT
808 select CRYPTO_ALGAPI
809 select CRYPTO_TWOFISH_COMMON
810 help
811 Twofish cipher algorithm.
812
813 Twofish was submitted as an AES (Advanced Encryption Standard)
814 candidate cipher by researchers at CounterPane Systems. It is a
815 16 round block cipher supporting key sizes of 128, 192, and 256
816 bits.
817
818 See also:
819 <http://www.schneier.com/twofish.html>
820
821 config CRYPTO_TWOFISH_X86_64
822 tristate "Twofish cipher algorithm (x86_64)"
823 depends on (X86 || UML_X86) && 64BIT
824 select CRYPTO_ALGAPI
825 select CRYPTO_TWOFISH_COMMON
826 help
827 Twofish cipher algorithm (x86_64).
828
829 Twofish was submitted as an AES (Advanced Encryption Standard)
830 candidate cipher by researchers at CounterPane Systems. It is a
831 16 round block cipher supporting key sizes of 128, 192, and 256
832 bits.
833
834 See also:
835 <http://www.schneier.com/twofish.html>
836
837 config CRYPTO_TWOFISH_X86_64_3WAY
838 tristate "Twofish cipher algorithm (x86_64, 3-way parallel)"
839 depends on (X86 || UML_X86) && 64BIT
840 select CRYPTO_ALGAPI
841 select CRYPTO_TWOFISH_COMMON
842 select CRYPTO_TWOFISH_X86_64
843 help
844 Twofish cipher algorithm (x86_64, 3-way parallel).
845
846 Twofish was submitted as an AES (Advanced Encryption Standard)
847 candidate cipher by researchers at CounterPane Systems. It is a
848 16 round block cipher supporting key sizes of 128, 192, and 256
849 bits.
850
851 This module provides Twofish cipher algorithm that processes three
852 blocks parallel, utilizing resources of out-of-order CPUs better.
853
854 See also:
855 <http://www.schneier.com/twofish.html>
856
857 comment "Compression"
858
859 config CRYPTO_DEFLATE
860 tristate "Deflate compression algorithm"
861 select CRYPTO_ALGAPI
862 select ZLIB_INFLATE
863 select ZLIB_DEFLATE
864 help
865 This is the Deflate algorithm (RFC1951), specified for use in
866 IPSec with the IPCOMP protocol (RFC3173, RFC2394).
867
868 You will most probably want this if using IPSec.
869
870 config CRYPTO_ZLIB
871 tristate "Zlib compression algorithm"
872 select CRYPTO_PCOMP
873 select ZLIB_INFLATE
874 select ZLIB_DEFLATE
875 select NLATTR
876 help
877 This is the zlib algorithm.
878
879 config CRYPTO_LZO
880 tristate "LZO compression algorithm"
881 select CRYPTO_ALGAPI
882 select LZO_COMPRESS
883 select LZO_DECOMPRESS
884 help
885 This is the LZO algorithm.
886
887 comment "Random Number Generation"
888
889 config CRYPTO_ANSI_CPRNG
890 tristate "Pseudo Random Number Generation for Cryptographic modules"
891 default m
892 select CRYPTO_AES
893 select CRYPTO_RNG
894 help
895 This option enables the generic pseudo random number generator
896 for cryptographic modules. Uses the Algorithm specified in
897 ANSI X9.31 A.2.4. Note that this option must be enabled if
898 CRYPTO_FIPS is selected
899
900 config CRYPTO_USER_API
901 tristate
902
903 config CRYPTO_USER_API_HASH
904 tristate "User-space interface for hash algorithms"
905 depends on NET
906 select CRYPTO_HASH
907 select CRYPTO_USER_API
908 help
909 This option enables the user-spaces interface for hash
910 algorithms.
911
912 config CRYPTO_USER_API_SKCIPHER
913 tristate "User-space interface for symmetric key cipher algorithms"
914 depends on NET
915 select CRYPTO_BLKCIPHER
916 select CRYPTO_USER_API
917 help
918 This option enables the user-spaces interface for symmetric
919 key cipher algorithms.
920
921 source "drivers/crypto/Kconfig"
922
923 endif # if CRYPTO
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