2 # Generic algorithms support
8 # async_tx api: hardware offloaded memory transfer/transform support
10 source "crypto/async_tx/Kconfig"
13 # Cryptographic API Configuration
16 bool "Cryptographic API"
18 This option provides the core Cryptographic API.
25 This option provides the API for cryptographic algorithms.
31 config CRYPTO_BLKCIPHER
36 tristate "Sequence Number IV Generator"
37 select CRYPTO_BLKCIPHER
39 This IV generator generates an IV based on a sequence number by
40 xoring it with a salt. This algorithm is mainly useful for CTR
48 tristate "Cryptographic algorithm manager"
51 Create default cryptographic template instantiations such as
55 tristate "HMAC support"
59 HMAC: Keyed-Hashing for Message Authentication (RFC2104).
60 This is required for IPSec.
63 tristate "XCBC support"
64 depends on EXPERIMENTAL
68 XCBC: Keyed-Hashing with encryption algorithm
69 http://www.ietf.org/rfc/rfc3566.txt
70 http://csrc.nist.gov/encryption/modes/proposedmodes/
71 xcbc-mac/xcbc-mac-spec.pdf
74 tristate "Null algorithms"
77 These are 'Null' algorithms, used by IPsec, which do nothing.
80 tristate "MD4 digest algorithm"
83 MD4 message digest algorithm (RFC1320).
86 tristate "MD5 digest algorithm"
89 MD5 message digest algorithm (RFC1321).
92 tristate "SHA1 digest algorithm"
95 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
98 tristate "SHA224 and SHA256 digest algorithm"
101 SHA256 secure hash standard (DFIPS 180-2).
103 This version of SHA implements a 256 bit hash with 128 bits of
104 security against collision attacks.
106 This code also includes SHA-224, a 224 bit hash with 112 bits
107 of security against collision attacks.
110 tristate "SHA384 and SHA512 digest algorithms"
113 SHA512 secure hash standard (DFIPS 180-2).
115 This version of SHA implements a 512 bit hash with 256 bits of
116 security against collision attacks.
118 This code also includes SHA-384, a 384 bit hash with 192 bits
119 of security against collision attacks.
122 tristate "Whirlpool digest algorithms"
125 Whirlpool hash algorithm 512, 384 and 256-bit hashes
127 Whirlpool-512 is part of the NESSIE cryptographic primitives.
128 Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
131 <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
134 tristate "Tiger digest algorithms"
137 Tiger hash algorithm 192, 160 and 128-bit hashes
139 Tiger is a hash function optimized for 64-bit processors while
140 still having decent performance on 32-bit processors.
141 Tiger was developed by Ross Anderson and Eli Biham.
144 <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
146 config CRYPTO_GF128MUL
147 tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
148 depends on EXPERIMENTAL
150 Efficient table driven implementation of multiplications in the
151 field GF(2^128). This is needed by some cypher modes. This
152 option will be selected automatically if you select such a
153 cipher mode. Only select this option by hand if you expect to load
154 an external module that requires these functions.
157 tristate "ECB support"
158 select CRYPTO_BLKCIPHER
159 select CRYPTO_MANAGER
161 ECB: Electronic CodeBook mode
162 This is the simplest block cipher algorithm. It simply encrypts
163 the input block by block.
166 tristate "CBC support"
167 select CRYPTO_BLKCIPHER
168 select CRYPTO_MANAGER
170 CBC: Cipher Block Chaining mode
171 This block cipher algorithm is required for IPSec.
174 tristate "PCBC support"
175 select CRYPTO_BLKCIPHER
176 select CRYPTO_MANAGER
178 PCBC: Propagating Cipher Block Chaining mode
179 This block cipher algorithm is required for RxRPC.
182 tristate "LRW support (EXPERIMENTAL)"
183 depends on EXPERIMENTAL
184 select CRYPTO_BLKCIPHER
185 select CRYPTO_MANAGER
186 select CRYPTO_GF128MUL
188 LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
189 narrow block cipher mode for dm-crypt. Use it with cipher
190 specification string aes-lrw-benbi, the key must be 256, 320 or 384.
191 The first 128, 192 or 256 bits in the key are used for AES and the
192 rest is used to tie each cipher block to its logical position.
195 tristate "XTS support (EXPERIMENTAL)"
196 depends on EXPERIMENTAL
197 select CRYPTO_BLKCIPHER
198 select CRYPTO_MANAGER
199 select CRYPTO_GF128MUL
201 XTS: IEEE1619/D16 narrow block cipher use with aes-xts-plain,
202 key size 256, 384 or 512 bits. This implementation currently
203 can't handle a sectorsize which is not a multiple of 16 bytes.
206 tristate "CTR support"
207 select CRYPTO_BLKCIPHER
209 select CRYPTO_MANAGER
212 This block cipher algorithm is required for IPSec.
215 tristate "GCM/GMAC support"
218 select CRYPTO_GF128MUL
220 Support for Galois/Counter Mode (GCM) and Galois Message
221 Authentication Code (GMAC). Required for IPSec.
224 tristate "CCM support"
228 Support for Counter with CBC MAC. Required for IPsec.
231 tristate "Software async crypto daemon"
232 select CRYPTO_BLKCIPHER
233 select CRYPTO_MANAGER
235 This is a generic software asynchronous crypto daemon that
236 converts an arbitrary synchronous software crypto algorithm
237 into an asynchronous algorithm that executes in a kernel thread.
240 tristate "DES and Triple DES EDE cipher algorithms"
243 DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
246 tristate "FCrypt cipher algorithm"
248 select CRYPTO_BLKCIPHER
250 FCrypt algorithm used by RxRPC.
252 config CRYPTO_BLOWFISH
253 tristate "Blowfish cipher algorithm"
256 Blowfish cipher algorithm, by Bruce Schneier.
258 This is a variable key length cipher which can use keys from 32
259 bits to 448 bits in length. It's fast, simple and specifically
260 designed for use on "large microprocessors".
263 <http://www.schneier.com/blowfish.html>
265 config CRYPTO_TWOFISH
266 tristate "Twofish cipher algorithm"
268 select CRYPTO_TWOFISH_COMMON
270 Twofish cipher algorithm.
272 Twofish was submitted as an AES (Advanced Encryption Standard)
273 candidate cipher by researchers at CounterPane Systems. It is a
274 16 round block cipher supporting key sizes of 128, 192, and 256
278 <http://www.schneier.com/twofish.html>
280 config CRYPTO_TWOFISH_COMMON
283 Common parts of the Twofish cipher algorithm shared by the
284 generic c and the assembler implementations.
286 config CRYPTO_TWOFISH_586
287 tristate "Twofish cipher algorithms (i586)"
288 depends on (X86 || UML_X86) && !64BIT
290 select CRYPTO_TWOFISH_COMMON
292 Twofish cipher algorithm.
294 Twofish was submitted as an AES (Advanced Encryption Standard)
295 candidate cipher by researchers at CounterPane Systems. It is a
296 16 round block cipher supporting key sizes of 128, 192, and 256
300 <http://www.schneier.com/twofish.html>
302 config CRYPTO_TWOFISH_X86_64
303 tristate "Twofish cipher algorithm (x86_64)"
304 depends on (X86 || UML_X86) && 64BIT
306 select CRYPTO_TWOFISH_COMMON
308 Twofish cipher algorithm (x86_64).
310 Twofish was submitted as an AES (Advanced Encryption Standard)
311 candidate cipher by researchers at CounterPane Systems. It is a
312 16 round block cipher supporting key sizes of 128, 192, and 256
316 <http://www.schneier.com/twofish.html>
318 config CRYPTO_SERPENT
319 tristate "Serpent cipher algorithm"
322 Serpent cipher algorithm, by Anderson, Biham & Knudsen.
324 Keys are allowed to be from 0 to 256 bits in length, in steps
325 of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
326 variant of Serpent for compatibility with old kerneli.org code.
329 <http://www.cl.cam.ac.uk/~rja14/serpent.html>
332 tristate "AES cipher algorithms"
335 AES cipher algorithms (FIPS-197). AES uses the Rijndael
338 Rijndael appears to be consistently a very good performer in
339 both hardware and software across a wide range of computing
340 environments regardless of its use in feedback or non-feedback
341 modes. Its key setup time is excellent, and its key agility is
342 good. Rijndael's very low memory requirements make it very well
343 suited for restricted-space environments, in which it also
344 demonstrates excellent performance. Rijndael's operations are
345 among the easiest to defend against power and timing attacks.
347 The AES specifies three key sizes: 128, 192 and 256 bits
349 See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
351 config CRYPTO_AES_586
352 tristate "AES cipher algorithms (i586)"
353 depends on (X86 || UML_X86) && !64BIT
357 AES cipher algorithms (FIPS-197). AES uses the Rijndael
360 Rijndael appears to be consistently a very good performer in
361 both hardware and software across a wide range of computing
362 environments regardless of its use in feedback or non-feedback
363 modes. Its key setup time is excellent, and its key agility is
364 good. Rijndael's very low memory requirements make it very well
365 suited for restricted-space environments, in which it also
366 demonstrates excellent performance. Rijndael's operations are
367 among the easiest to defend against power and timing attacks.
369 The AES specifies three key sizes: 128, 192 and 256 bits
371 See <http://csrc.nist.gov/encryption/aes/> for more information.
373 config CRYPTO_AES_X86_64
374 tristate "AES cipher algorithms (x86_64)"
375 depends on (X86 || UML_X86) && 64BIT
379 AES cipher algorithms (FIPS-197). AES uses the Rijndael
382 Rijndael appears to be consistently a very good performer in
383 both hardware and software across a wide range of computing
384 environments regardless of its use in feedback or non-feedback
385 modes. Its key setup time is excellent, and its key agility is
386 good. Rijndael's very low memory requirements make it very well
387 suited for restricted-space environments, in which it also
388 demonstrates excellent performance. Rijndael's operations are
389 among the easiest to defend against power and timing attacks.
391 The AES specifies three key sizes: 128, 192 and 256 bits
393 See <http://csrc.nist.gov/encryption/aes/> for more information.
396 tristate "CAST5 (CAST-128) cipher algorithm"
399 The CAST5 encryption algorithm (synonymous with CAST-128) is
400 described in RFC2144.
403 tristate "CAST6 (CAST-256) cipher algorithm"
406 The CAST6 encryption algorithm (synonymous with CAST-256) is
407 described in RFC2612.
410 tristate "TEA, XTEA and XETA cipher algorithms"
413 TEA cipher algorithm.
415 Tiny Encryption Algorithm is a simple cipher that uses
416 many rounds for security. It is very fast and uses
419 Xtendend Tiny Encryption Algorithm is a modification to
420 the TEA algorithm to address a potential key weakness
421 in the TEA algorithm.
423 Xtendend Encryption Tiny Algorithm is a mis-implementation
424 of the XTEA algorithm for compatibility purposes.
427 tristate "ARC4 cipher algorithm"
430 ARC4 cipher algorithm.
432 ARC4 is a stream cipher using keys ranging from 8 bits to 2048
433 bits in length. This algorithm is required for driver-based
434 WEP, but it should not be for other purposes because of the
435 weakness of the algorithm.
438 tristate "Khazad cipher algorithm"
441 Khazad cipher algorithm.
443 Khazad was a finalist in the initial NESSIE competition. It is
444 an algorithm optimized for 64-bit processors with good performance
445 on 32-bit processors. Khazad uses an 128 bit key size.
448 <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
451 tristate "Anubis cipher algorithm"
454 Anubis cipher algorithm.
456 Anubis is a variable key length cipher which can use keys from
457 128 bits to 320 bits in length. It was evaluated as a entrant
458 in the NESSIE competition.
461 <https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
462 <http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
465 tristate "SEED cipher algorithm"
468 SEED cipher algorithm (RFC4269).
470 SEED is a 128-bit symmetric key block cipher that has been
471 developed by KISA (Korea Information Security Agency) as a
472 national standard encryption algorithm of the Republic of Korea.
473 It is a 16 round block cipher with the key size of 128 bit.
476 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>
478 config CRYPTO_SALSA20
479 tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)"
480 depends on EXPERIMENTAL
481 select CRYPTO_BLKCIPHER
483 Salsa20 stream cipher algorithm.
485 Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
486 Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
488 The Salsa20 stream cipher algorithm is designed by Daniel J.
489 Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
491 config CRYPTO_DEFLATE
492 tristate "Deflate compression algorithm"
497 This is the Deflate algorithm (RFC1951), specified for use in
498 IPSec with the IPCOMP protocol (RFC3173, RFC2394).
500 You will most probably want this if using IPSec.
502 config CRYPTO_MICHAEL_MIC
503 tristate "Michael MIC keyed digest algorithm"
506 Michael MIC is used for message integrity protection in TKIP
507 (IEEE 802.11i). This algorithm is required for TKIP, but it
508 should not be used for other purposes because of the weakness
512 tristate "CRC32c CRC algorithm"
516 Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
517 by iSCSI for header and data digests and by others.
518 See Castagnoli93. This implementation uses lib/libcrc32c.
519 Module will be crc32c.
521 config CRYPTO_CAMELLIA
522 tristate "Camellia cipher algorithms"
526 Camellia cipher algorithms module.
528 Camellia is a symmetric key block cipher developed jointly
529 at NTT and Mitsubishi Electric Corporation.
531 The Camellia specifies three key sizes: 128, 192 and 256 bits.
534 <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>
537 tristate "Testing module"
541 Quick & dirty crypto test module.
543 config CRYPTO_AUTHENC
544 tristate "Authenc support"
546 select CRYPTO_MANAGER
549 Authenc: Combined mode wrapper for IPsec.
550 This is required for IPSec.
553 tristate "LZO compression algorithm"
556 select LZO_DECOMPRESS
558 This is the LZO algorithm.
560 source "drivers/crypto/Kconfig"