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.
27 config CRYPTO_ABLKCIPHER
29 select CRYPTO_BLKCIPHER
35 config CRYPTO_BLKCIPHER
44 tristate "Cryptographic algorithm manager"
47 Create default cryptographic template instantiations such as
51 tristate "HMAC support"
55 HMAC: Keyed-Hashing for Message Authentication (RFC2104).
56 This is required for IPSec.
59 tristate "XCBC support"
60 depends on EXPERIMENTAL
64 XCBC: Keyed-Hashing with encryption algorithm
65 http://www.ietf.org/rfc/rfc3566.txt
66 http://csrc.nist.gov/encryption/modes/proposedmodes/
67 xcbc-mac/xcbc-mac-spec.pdf
70 tristate "Null algorithms"
73 These are 'Null' algorithms, used by IPsec, which do nothing.
76 tristate "MD4 digest algorithm"
79 MD4 message digest algorithm (RFC1320).
82 tristate "MD5 digest algorithm"
85 MD5 message digest algorithm (RFC1321).
88 tristate "SHA1 digest algorithm"
91 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
94 tristate "SHA256 digest algorithm"
97 SHA256 secure hash standard (DFIPS 180-2).
99 This version of SHA implements a 256 bit hash with 128 bits of
100 security against collision attacks.
103 tristate "SHA384 and SHA512 digest algorithms"
106 SHA512 secure hash standard (DFIPS 180-2).
108 This version of SHA implements a 512 bit hash with 256 bits of
109 security against collision attacks.
111 This code also includes SHA-384, a 384 bit hash with 192 bits
112 of security against collision attacks.
115 tristate "Whirlpool digest algorithms"
118 Whirlpool hash algorithm 512, 384 and 256-bit hashes
120 Whirlpool-512 is part of the NESSIE cryptographic primitives.
121 Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
124 <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
127 tristate "Tiger digest algorithms"
130 Tiger hash algorithm 192, 160 and 128-bit hashes
132 Tiger is a hash function optimized for 64-bit processors while
133 still having decent performance on 32-bit processors.
134 Tiger was developed by Ross Anderson and Eli Biham.
137 <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
139 config CRYPTO_GF128MUL
140 tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
141 depends on EXPERIMENTAL
143 Efficient table driven implementation of multiplications in the
144 field GF(2^128). This is needed by some cypher modes. This
145 option will be selected automatically if you select such a
146 cipher mode. Only select this option by hand if you expect to load
147 an external module that requires these functions.
150 tristate "ECB support"
151 select CRYPTO_BLKCIPHER
152 select CRYPTO_MANAGER
154 ECB: Electronic CodeBook mode
155 This is the simplest block cipher algorithm. It simply encrypts
156 the input block by block.
159 tristate "CBC support"
160 select CRYPTO_BLKCIPHER
161 select CRYPTO_MANAGER
163 CBC: Cipher Block Chaining mode
164 This block cipher algorithm is required for IPSec.
167 tristate "PCBC support"
168 select CRYPTO_BLKCIPHER
169 select CRYPTO_MANAGER
171 PCBC: Propagating Cipher Block Chaining mode
172 This block cipher algorithm is required for RxRPC.
175 tristate "LRW support (EXPERIMENTAL)"
176 depends on EXPERIMENTAL
177 select CRYPTO_BLKCIPHER
178 select CRYPTO_MANAGER
179 select CRYPTO_GF128MUL
181 LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
182 narrow block cipher mode for dm-crypt. Use it with cipher
183 specification string aes-lrw-benbi, the key must be 256, 320 or 384.
184 The first 128, 192 or 256 bits in the key are used for AES and the
185 rest is used to tie each cipher block to its logical position.
188 tristate "XTS support (EXPERIMENTAL)"
189 depends on EXPERIMENTAL
190 select CRYPTO_BLKCIPHER
191 select CRYPTO_MANAGER
192 select CRYPTO_GF128MUL
194 XTS: IEEE1619/D16 narrow block cipher use with aes-xts-plain,
195 key size 256, 384 or 512 bits. This implementation currently
196 can't handle a sectorsize which is not a multiple of 16 bytes.
199 tristate "Software async crypto daemon"
200 select CRYPTO_ABLKCIPHER
201 select CRYPTO_MANAGER
203 This is a generic software asynchronous crypto daemon that
204 converts an arbitrary synchronous software crypto algorithm
205 into an asynchronous algorithm that executes in a kernel thread.
208 tristate "DES and Triple DES EDE cipher algorithms"
211 DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
214 tristate "FCrypt cipher algorithm"
216 select CRYPTO_BLKCIPHER
218 FCrypt algorithm used by RxRPC.
220 config CRYPTO_BLOWFISH
221 tristate "Blowfish cipher algorithm"
224 Blowfish cipher algorithm, by Bruce Schneier.
226 This is a variable key length cipher which can use keys from 32
227 bits to 448 bits in length. It's fast, simple and specifically
228 designed for use on "large microprocessors".
231 <http://www.schneier.com/blowfish.html>
233 config CRYPTO_TWOFISH
234 tristate "Twofish cipher algorithm"
236 select CRYPTO_TWOFISH_COMMON
238 Twofish cipher algorithm.
240 Twofish was submitted as an AES (Advanced Encryption Standard)
241 candidate cipher by researchers at CounterPane Systems. It is a
242 16 round block cipher supporting key sizes of 128, 192, and 256
246 <http://www.schneier.com/twofish.html>
248 config CRYPTO_TWOFISH_COMMON
251 Common parts of the Twofish cipher algorithm shared by the
252 generic c and the assembler implementations.
254 config CRYPTO_TWOFISH_586
255 tristate "Twofish cipher algorithms (i586)"
256 depends on (X86 || UML_X86) && !64BIT
258 select CRYPTO_TWOFISH_COMMON
260 Twofish cipher algorithm.
262 Twofish was submitted as an AES (Advanced Encryption Standard)
263 candidate cipher by researchers at CounterPane Systems. It is a
264 16 round block cipher supporting key sizes of 128, 192, and 256
268 <http://www.schneier.com/twofish.html>
270 config CRYPTO_TWOFISH_X86_64
271 tristate "Twofish cipher algorithm (x86_64)"
272 depends on (X86 || UML_X86) && 64BIT
274 select CRYPTO_TWOFISH_COMMON
276 Twofish cipher algorithm (x86_64).
278 Twofish was submitted as an AES (Advanced Encryption Standard)
279 candidate cipher by researchers at CounterPane Systems. It is a
280 16 round block cipher supporting key sizes of 128, 192, and 256
284 <http://www.schneier.com/twofish.html>
286 config CRYPTO_SERPENT
287 tristate "Serpent cipher algorithm"
290 Serpent cipher algorithm, by Anderson, Biham & Knudsen.
292 Keys are allowed to be from 0 to 256 bits in length, in steps
293 of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
294 variant of Serpent for compatibility with old kerneli.org code.
297 <http://www.cl.cam.ac.uk/~rja14/serpent.html>
300 tristate "AES cipher algorithms"
303 AES cipher algorithms (FIPS-197). AES uses the Rijndael
306 Rijndael appears to be consistently a very good performer in
307 both hardware and software across a wide range of computing
308 environments regardless of its use in feedback or non-feedback
309 modes. Its key setup time is excellent, and its key agility is
310 good. Rijndael's very low memory requirements make it very well
311 suited for restricted-space environments, in which it also
312 demonstrates excellent performance. Rijndael's operations are
313 among the easiest to defend against power and timing attacks.
315 The AES specifies three key sizes: 128, 192 and 256 bits
317 See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
319 config CRYPTO_AES_586
320 tristate "AES cipher algorithms (i586)"
321 depends on (X86 || UML_X86) && !64BIT
324 AES cipher algorithms (FIPS-197). AES uses the Rijndael
327 Rijndael appears to be consistently a very good performer in
328 both hardware and software across a wide range of computing
329 environments regardless of its use in feedback or non-feedback
330 modes. Its key setup time is excellent, and its key agility is
331 good. Rijndael's very low memory requirements make it very well
332 suited for restricted-space environments, in which it also
333 demonstrates excellent performance. Rijndael's operations are
334 among the easiest to defend against power and timing attacks.
336 The AES specifies three key sizes: 128, 192 and 256 bits
338 See <http://csrc.nist.gov/encryption/aes/> for more information.
340 config CRYPTO_AES_X86_64
341 tristate "AES cipher algorithms (x86_64)"
342 depends on (X86 || UML_X86) && 64BIT
345 AES cipher algorithms (FIPS-197). AES uses the Rijndael
348 Rijndael appears to be consistently a very good performer in
349 both hardware and software across a wide range of computing
350 environments regardless of its use in feedback or non-feedback
351 modes. Its key setup time is excellent, and its key agility is
352 good. Rijndael's very low memory requirements make it very well
353 suited for restricted-space environments, in which it also
354 demonstrates excellent performance. Rijndael's operations are
355 among the easiest to defend against power and timing attacks.
357 The AES specifies three key sizes: 128, 192 and 256 bits
359 See <http://csrc.nist.gov/encryption/aes/> for more information.
362 tristate "CAST5 (CAST-128) cipher algorithm"
365 The CAST5 encryption algorithm (synonymous with CAST-128) is
366 described in RFC2144.
369 tristate "CAST6 (CAST-256) cipher algorithm"
372 The CAST6 encryption algorithm (synonymous with CAST-256) is
373 described in RFC2612.
376 tristate "TEA, XTEA and XETA cipher algorithms"
379 TEA cipher algorithm.
381 Tiny Encryption Algorithm is a simple cipher that uses
382 many rounds for security. It is very fast and uses
385 Xtendend Tiny Encryption Algorithm is a modification to
386 the TEA algorithm to address a potential key weakness
387 in the TEA algorithm.
389 Xtendend Encryption Tiny Algorithm is a mis-implementation
390 of the XTEA algorithm for compatibility purposes.
393 tristate "ARC4 cipher algorithm"
396 ARC4 cipher algorithm.
398 ARC4 is a stream cipher using keys ranging from 8 bits to 2048
399 bits in length. This algorithm is required for driver-based
400 WEP, but it should not be for other purposes because of the
401 weakness of the algorithm.
404 tristate "Khazad cipher algorithm"
407 Khazad cipher algorithm.
409 Khazad was a finalist in the initial NESSIE competition. It is
410 an algorithm optimized for 64-bit processors with good performance
411 on 32-bit processors. Khazad uses an 128 bit key size.
414 <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
417 tristate "Anubis cipher algorithm"
420 Anubis cipher algorithm.
422 Anubis is a variable key length cipher which can use keys from
423 128 bits to 320 bits in length. It was evaluated as a entrant
424 in the NESSIE competition.
427 <https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
428 <http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
431 tristate "SEED cipher algorithm"
434 SEED cipher algorithm (RFC4269).
436 SEED is a 128-bit symmetric key block cipher that has been
437 developed by KISA (Korea Information Security Agency) as a
438 national standard encryption algorithm of the Republic of Korea.
439 It is a 16 round block cipher with the key size of 128 bit.
442 <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>
445 config CRYPTO_DEFLATE
446 tristate "Deflate compression algorithm"
451 This is the Deflate algorithm (RFC1951), specified for use in
452 IPSec with the IPCOMP protocol (RFC3173, RFC2394).
454 You will most probably want this if using IPSec.
456 config CRYPTO_MICHAEL_MIC
457 tristate "Michael MIC keyed digest algorithm"
460 Michael MIC is used for message integrity protection in TKIP
461 (IEEE 802.11i). This algorithm is required for TKIP, but it
462 should not be used for other purposes because of the weakness
466 tristate "CRC32c CRC algorithm"
470 Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
471 by iSCSI for header and data digests and by others.
472 See Castagnoli93. This implementation uses lib/libcrc32c.
473 Module will be crc32c.
475 config CRYPTO_CAMELLIA
476 tristate "Camellia cipher algorithms"
480 Camellia cipher algorithms module.
482 Camellia is a symmetric key block cipher developed jointly
483 at NTT and Mitsubishi Electric Corporation.
485 The Camellia specifies three key sizes: 128, 192 and 256 bits.
488 <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>
491 tristate "Testing module"
495 Quick & dirty crypto test module.
497 config CRYPTO_AUTHENC
498 tristate "Authenc support"
500 select CRYPTO_MANAGER
502 Authenc: Combined mode wrapper for IPsec.
503 This is required for IPSec.
505 source "drivers/crypto/Kconfig"