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 "Software async crypto daemon"
225 select CRYPTO_BLKCIPHER
226 select CRYPTO_MANAGER
228 This is a generic software asynchronous crypto daemon that
229 converts an arbitrary synchronous software crypto algorithm
230 into an asynchronous algorithm that executes in a kernel thread.
233 tristate "DES and Triple DES EDE cipher algorithms"
236 DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
239 tristate "FCrypt cipher algorithm"
241 select CRYPTO_BLKCIPHER
243 FCrypt algorithm used by RxRPC.
245 config CRYPTO_BLOWFISH
246 tristate "Blowfish cipher algorithm"
249 Blowfish cipher algorithm, by Bruce Schneier.
251 This is a variable key length cipher which can use keys from 32
252 bits to 448 bits in length. It's fast, simple and specifically
253 designed for use on "large microprocessors".
256 <http://www.schneier.com/blowfish.html>
258 config CRYPTO_TWOFISH
259 tristate "Twofish cipher algorithm"
261 select CRYPTO_TWOFISH_COMMON
263 Twofish cipher algorithm.
265 Twofish was submitted as an AES (Advanced Encryption Standard)
266 candidate cipher by researchers at CounterPane Systems. It is a
267 16 round block cipher supporting key sizes of 128, 192, and 256
271 <http://www.schneier.com/twofish.html>
273 config CRYPTO_TWOFISH_COMMON
276 Common parts of the Twofish cipher algorithm shared by the
277 generic c and the assembler implementations.
279 config CRYPTO_TWOFISH_586
280 tristate "Twofish cipher algorithms (i586)"
281 depends on (X86 || UML_X86) && !64BIT
283 select CRYPTO_TWOFISH_COMMON
285 Twofish cipher algorithm.
287 Twofish was submitted as an AES (Advanced Encryption Standard)
288 candidate cipher by researchers at CounterPane Systems. It is a
289 16 round block cipher supporting key sizes of 128, 192, and 256
293 <http://www.schneier.com/twofish.html>
295 config CRYPTO_TWOFISH_X86_64
296 tristate "Twofish cipher algorithm (x86_64)"
297 depends on (X86 || UML_X86) && 64BIT
299 select CRYPTO_TWOFISH_COMMON
301 Twofish cipher algorithm (x86_64).
303 Twofish was submitted as an AES (Advanced Encryption Standard)
304 candidate cipher by researchers at CounterPane Systems. It is a
305 16 round block cipher supporting key sizes of 128, 192, and 256
309 <http://www.schneier.com/twofish.html>
311 config CRYPTO_SERPENT
312 tristate "Serpent cipher algorithm"
315 Serpent cipher algorithm, by Anderson, Biham & Knudsen.
317 Keys are allowed to be from 0 to 256 bits in length, in steps
318 of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
319 variant of Serpent for compatibility with old kerneli.org code.
322 <http://www.cl.cam.ac.uk/~rja14/serpent.html>
325 tristate "AES cipher algorithms"
328 AES cipher algorithms (FIPS-197). AES uses the Rijndael
331 Rijndael appears to be consistently a very good performer in
332 both hardware and software across a wide range of computing
333 environments regardless of its use in feedback or non-feedback
334 modes. Its key setup time is excellent, and its key agility is
335 good. Rijndael's very low memory requirements make it very well
336 suited for restricted-space environments, in which it also
337 demonstrates excellent performance. Rijndael's operations are
338 among the easiest to defend against power and timing attacks.
340 The AES specifies three key sizes: 128, 192 and 256 bits
342 See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
344 config CRYPTO_AES_586
345 tristate "AES cipher algorithms (i586)"
346 depends on (X86 || UML_X86) && !64BIT
350 AES cipher algorithms (FIPS-197). AES uses the Rijndael
353 Rijndael appears to be consistently a very good performer in
354 both hardware and software across a wide range of computing
355 environments regardless of its use in feedback or non-feedback
356 modes. Its key setup time is excellent, and its key agility is
357 good. Rijndael's very low memory requirements make it very well
358 suited for restricted-space environments, in which it also
359 demonstrates excellent performance. Rijndael's operations are
360 among the easiest to defend against power and timing attacks.
362 The AES specifies three key sizes: 128, 192 and 256 bits
364 See <http://csrc.nist.gov/encryption/aes/> for more information.
366 config CRYPTO_AES_X86_64
367 tristate "AES cipher algorithms (x86_64)"
368 depends on (X86 || UML_X86) && 64BIT
372 AES cipher algorithms (FIPS-197). AES uses the Rijndael
375 Rijndael appears to be consistently a very good performer in
376 both hardware and software across a wide range of computing
377 environments regardless of its use in feedback or non-feedback
378 modes. Its key setup time is excellent, and its key agility is
379 good. Rijndael's very low memory requirements make it very well
380 suited for restricted-space environments, in which it also
381 demonstrates excellent performance. Rijndael's operations are
382 among the easiest to defend against power and timing attacks.
384 The AES specifies three key sizes: 128, 192 and 256 bits
386 See <http://csrc.nist.gov/encryption/aes/> for more information.
389 tristate "CAST5 (CAST-128) cipher algorithm"
392 The CAST5 encryption algorithm (synonymous with CAST-128) is
393 described in RFC2144.
396 tristate "CAST6 (CAST-256) cipher algorithm"
399 The CAST6 encryption algorithm (synonymous with CAST-256) is
400 described in RFC2612.
403 tristate "TEA, XTEA and XETA cipher algorithms"
406 TEA cipher algorithm.
408 Tiny Encryption Algorithm is a simple cipher that uses
409 many rounds for security. It is very fast and uses
412 Xtendend Tiny Encryption Algorithm is a modification to
413 the TEA algorithm to address a potential key weakness
414 in the TEA algorithm.
416 Xtendend Encryption Tiny Algorithm is a mis-implementation
417 of the XTEA algorithm for compatibility purposes.
420 tristate "ARC4 cipher algorithm"
423 ARC4 cipher algorithm.
425 ARC4 is a stream cipher using keys ranging from 8 bits to 2048
426 bits in length. This algorithm is required for driver-based
427 WEP, but it should not be for other purposes because of the
428 weakness of the algorithm.
431 tristate "Khazad cipher algorithm"
434 Khazad cipher algorithm.
436 Khazad was a finalist in the initial NESSIE competition. It is
437 an algorithm optimized for 64-bit processors with good performance
438 on 32-bit processors. Khazad uses an 128 bit key size.
441 <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
444 tristate "Anubis cipher algorithm"
447 Anubis cipher algorithm.
449 Anubis is a variable key length cipher which can use keys from
450 128 bits to 320 bits in length. It was evaluated as a entrant
451 in the NESSIE competition.
454 <https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
455 <http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
458 tristate "SEED cipher algorithm"
461 SEED cipher algorithm (RFC4269).
463 SEED is a 128-bit symmetric key block cipher that has been
464 developed by KISA (Korea Information Security Agency) as a
465 national standard encryption algorithm of the Republic of Korea.
466 It is a 16 round block cipher with the key size of 128 bit.
469 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>
471 config CRYPTO_SALSA20
472 tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)"
473 depends on EXPERIMENTAL
474 select CRYPTO_BLKCIPHER
476 Salsa20 stream cipher algorithm.
478 Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
479 Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
481 The Salsa20 stream cipher algorithm is designed by Daniel J.
482 Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
484 config CRYPTO_DEFLATE
485 tristate "Deflate compression algorithm"
490 This is the Deflate algorithm (RFC1951), specified for use in
491 IPSec with the IPCOMP protocol (RFC3173, RFC2394).
493 You will most probably want this if using IPSec.
495 config CRYPTO_MICHAEL_MIC
496 tristate "Michael MIC keyed digest algorithm"
499 Michael MIC is used for message integrity protection in TKIP
500 (IEEE 802.11i). This algorithm is required for TKIP, but it
501 should not be used for other purposes because of the weakness
505 tristate "CRC32c CRC algorithm"
509 Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
510 by iSCSI for header and data digests and by others.
511 See Castagnoli93. This implementation uses lib/libcrc32c.
512 Module will be crc32c.
514 config CRYPTO_CAMELLIA
515 tristate "Camellia cipher algorithms"
519 Camellia cipher algorithms module.
521 Camellia is a symmetric key block cipher developed jointly
522 at NTT and Mitsubishi Electric Corporation.
524 The Camellia specifies three key sizes: 128, 192 and 256 bits.
527 <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>
530 tristate "Testing module"
534 Quick & dirty crypto test module.
536 config CRYPTO_AUTHENC
537 tristate "Authenc support"
539 select CRYPTO_MANAGER
542 Authenc: Combined mode wrapper for IPsec.
543 This is required for IPSec.
546 tristate "LZO compression algorithm"
549 select LZO_DECOMPRESS
551 This is the LZO algorithm.
553 source "drivers/crypto/Kconfig"