1# 2# Generic algorithms support 3# 4config XOR_BLOCKS 5 tristate 6 7# 8# async_tx api: hardware offloaded memory transfer/transform support 9# 10source "crypto/async_tx/Kconfig" 11 12# 13# Cryptographic API Configuration 14# 15menuconfig CRYPTO 16 bool "Cryptographic API" 17 help 18 This option provides the core Cryptographic API. 19 20if CRYPTO 21 22config CRYPTO_ALGAPI 23 tristate 24 help 25 This option provides the API for cryptographic algorithms. 26 27config CRYPTO_ABLKCIPHER 28 tristate 29 select CRYPTO_BLKCIPHER 30 31config CRYPTO_BLKCIPHER 32 tristate 33 select CRYPTO_ALGAPI 34 35config CRYPTO_HASH 36 tristate 37 select CRYPTO_ALGAPI 38 39config CRYPTO_MANAGER 40 tristate "Cryptographic algorithm manager" 41 select CRYPTO_ALGAPI 42 help 43 Create default cryptographic template instantiations such as 44 cbc(aes). 45 46config CRYPTO_HMAC 47 tristate "HMAC support" 48 select CRYPTO_HASH 49 select CRYPTO_MANAGER 50 help 51 HMAC: Keyed-Hashing for Message Authentication (RFC2104). 52 This is required for IPSec. 53 54config CRYPTO_XCBC 55 tristate "XCBC support" 56 depends on EXPERIMENTAL 57 select CRYPTO_HASH 58 select CRYPTO_MANAGER 59 help 60 XCBC: Keyed-Hashing with encryption algorithm 61 http://www.ietf.org/rfc/rfc3566.txt 62 http://csrc.nist.gov/encryption/modes/proposedmodes/ 63 xcbc-mac/xcbc-mac-spec.pdf 64 65config CRYPTO_NULL 66 tristate "Null algorithms" 67 select CRYPTO_ALGAPI 68 help 69 These are 'Null' algorithms, used by IPsec, which do nothing. 70 71config CRYPTO_MD4 72 tristate "MD4 digest algorithm" 73 select CRYPTO_ALGAPI 74 help 75 MD4 message digest algorithm (RFC1320). 76 77config CRYPTO_MD5 78 tristate "MD5 digest algorithm" 79 select CRYPTO_ALGAPI 80 help 81 MD5 message digest algorithm (RFC1321). 82 83config CRYPTO_SHA1 84 tristate "SHA1 digest algorithm" 85 select CRYPTO_ALGAPI 86 help 87 SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2). 88 89config CRYPTO_SHA256 90 tristate "SHA256 digest algorithm" 91 select CRYPTO_ALGAPI 92 help 93 SHA256 secure hash standard (DFIPS 180-2). 94 95 This version of SHA implements a 256 bit hash with 128 bits of 96 security against collision attacks. 97 98config CRYPTO_SHA512 99 tristate "SHA384 and SHA512 digest algorithms" 100 select CRYPTO_ALGAPI 101 help 102 SHA512 secure hash standard (DFIPS 180-2). 103 104 This version of SHA implements a 512 bit hash with 256 bits of 105 security against collision attacks. 106 107 This code also includes SHA-384, a 384 bit hash with 192 bits 108 of security against collision attacks. 109 110config CRYPTO_WP512 111 tristate "Whirlpool digest algorithms" 112 select CRYPTO_ALGAPI 113 help 114 Whirlpool hash algorithm 512, 384 and 256-bit hashes 115 116 Whirlpool-512 is part of the NESSIE cryptographic primitives. 117 Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard 118 119 See also: 120 <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html> 121 122config CRYPTO_TGR192 123 tristate "Tiger digest algorithms" 124 select CRYPTO_ALGAPI 125 help 126 Tiger hash algorithm 192, 160 and 128-bit hashes 127 128 Tiger is a hash function optimized for 64-bit processors while 129 still having decent performance on 32-bit processors. 130 Tiger was developed by Ross Anderson and Eli Biham. 131 132 See also: 133 <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>. 134 135config CRYPTO_GF128MUL 136 tristate "GF(2^128) multiplication functions (EXPERIMENTAL)" 137 depends on EXPERIMENTAL 138 help 139 Efficient table driven implementation of multiplications in the 140 field GF(2^128). This is needed by some cypher modes. This 141 option will be selected automatically if you select such a 142 cipher mode. Only select this option by hand if you expect to load 143 an external module that requires these functions. 144 145config CRYPTO_ECB 146 tristate "ECB support" 147 select CRYPTO_BLKCIPHER 148 select CRYPTO_MANAGER 149 default m 150 help 151 ECB: Electronic CodeBook mode 152 This is the simplest block cipher algorithm. It simply encrypts 153 the input block by block. 154 155config CRYPTO_CBC 156 tristate "CBC support" 157 select CRYPTO_BLKCIPHER 158 select CRYPTO_MANAGER 159 default m 160 help 161 CBC: Cipher Block Chaining mode 162 This block cipher algorithm is required for IPSec. 163 164config CRYPTO_PCBC 165 tristate "PCBC support" 166 select CRYPTO_BLKCIPHER 167 select CRYPTO_MANAGER 168 default m 169 help 170 PCBC: Propagating Cipher Block Chaining mode 171 This block cipher algorithm is required for RxRPC. 172 173config CRYPTO_LRW 174 tristate "LRW support (EXPERIMENTAL)" 175 depends on EXPERIMENTAL 176 select CRYPTO_BLKCIPHER 177 select CRYPTO_MANAGER 178 select CRYPTO_GF128MUL 179 help 180 LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable 181 narrow block cipher mode for dm-crypt. Use it with cipher 182 specification string aes-lrw-benbi, the key must be 256, 320 or 384. 183 The first 128, 192 or 256 bits in the key are used for AES and the 184 rest is used to tie each cipher block to its logical position. 185 186config CRYPTO_CRYPTD 187 tristate "Software async crypto daemon" 188 select CRYPTO_ABLKCIPHER 189 select CRYPTO_MANAGER 190 help 191 This is a generic software asynchronous crypto daemon that 192 converts an arbitrary synchronous software crypto algorithm 193 into an asynchronous algorithm that executes in a kernel thread. 194 195config CRYPTO_DES 196 tristate "DES and Triple DES EDE cipher algorithms" 197 select CRYPTO_ALGAPI 198 help 199 DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3). 200 201config CRYPTO_FCRYPT 202 tristate "FCrypt cipher algorithm" 203 select CRYPTO_ALGAPI 204 select CRYPTO_BLKCIPHER 205 help 206 FCrypt algorithm used by RxRPC. 207 208config CRYPTO_BLOWFISH 209 tristate "Blowfish cipher algorithm" 210 select CRYPTO_ALGAPI 211 help 212 Blowfish cipher algorithm, by Bruce Schneier. 213 214 This is a variable key length cipher which can use keys from 32 215 bits to 448 bits in length. It's fast, simple and specifically 216 designed for use on "large microprocessors". 217 218 See also: 219 <http://www.schneier.com/blowfish.html> 220 221config CRYPTO_TWOFISH 222 tristate "Twofish cipher algorithm" 223 select CRYPTO_ALGAPI 224 select CRYPTO_TWOFISH_COMMON 225 help 226 Twofish cipher algorithm. 227 228 Twofish was submitted as an AES (Advanced Encryption Standard) 229 candidate cipher by researchers at CounterPane Systems. It is a 230 16 round block cipher supporting key sizes of 128, 192, and 256 231 bits. 232 233 See also: 234 <http://www.schneier.com/twofish.html> 235 236config CRYPTO_TWOFISH_COMMON 237 tristate 238 help 239 Common parts of the Twofish cipher algorithm shared by the 240 generic c and the assembler implementations. 241 242config CRYPTO_TWOFISH_586 243 tristate "Twofish cipher algorithms (i586)" 244 depends on (X86 || UML_X86) && !64BIT 245 select CRYPTO_ALGAPI 246 select CRYPTO_TWOFISH_COMMON 247 help 248 Twofish cipher algorithm. 249 250 Twofish was submitted as an AES (Advanced Encryption Standard) 251 candidate cipher by researchers at CounterPane Systems. It is a 252 16 round block cipher supporting key sizes of 128, 192, and 256 253 bits. 254 255 See also: 256 <http://www.schneier.com/twofish.html> 257 258config CRYPTO_TWOFISH_X86_64 259 tristate "Twofish cipher algorithm (x86_64)" 260 depends on (X86 || UML_X86) && 64BIT 261 select CRYPTO_ALGAPI 262 select CRYPTO_TWOFISH_COMMON 263 help 264 Twofish cipher algorithm (x86_64). 265 266 Twofish was submitted as an AES (Advanced Encryption Standard) 267 candidate cipher by researchers at CounterPane Systems. It is a 268 16 round block cipher supporting key sizes of 128, 192, and 256 269 bits. 270 271 See also: 272 <http://www.schneier.com/twofish.html> 273 274config CRYPTO_SERPENT 275 tristate "Serpent cipher algorithm" 276 select CRYPTO_ALGAPI 277 help 278 Serpent cipher algorithm, by Anderson, Biham & Knudsen. 279 280 Keys are allowed to be from 0 to 256 bits in length, in steps 281 of 8 bits. Also includes the 'Tnepres' algorithm, a reversed 282 variant of Serpent for compatibility with old kerneli.org code. 283 284 See also: 285 <http://www.cl.cam.ac.uk/~rja14/serpent.html> 286 287config CRYPTO_AES 288 tristate "AES cipher algorithms" 289 select CRYPTO_ALGAPI 290 help 291 AES cipher algorithms (FIPS-197). AES uses the Rijndael 292 algorithm. 293 294 Rijndael appears to be consistently a very good performer in 295 both hardware and software across a wide range of computing 296 environments regardless of its use in feedback or non-feedback 297 modes. Its key setup time is excellent, and its key agility is 298 good. Rijndael's very low memory requirements make it very well 299 suited for restricted-space environments, in which it also 300 demonstrates excellent performance. Rijndael's operations are 301 among the easiest to defend against power and timing attacks. 302 303 The AES specifies three key sizes: 128, 192 and 256 bits 304 305 See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information. 306 307config CRYPTO_AES_586 308 tristate "AES cipher algorithms (i586)" 309 depends on (X86 || UML_X86) && !64BIT 310 select CRYPTO_ALGAPI 311 help 312 AES cipher algorithms (FIPS-197). AES uses the Rijndael 313 algorithm. 314 315 Rijndael appears to be consistently a very good performer in 316 both hardware and software across a wide range of computing 317 environments regardless of its use in feedback or non-feedback 318 modes. Its key setup time is excellent, and its key agility is 319 good. Rijndael's very low memory requirements make it very well 320 suited for restricted-space environments, in which it also 321 demonstrates excellent performance. Rijndael's operations are 322 among the easiest to defend against power and timing attacks. 323 324 The AES specifies three key sizes: 128, 192 and 256 bits 325 326 See <http://csrc.nist.gov/encryption/aes/> for more information. 327 328config CRYPTO_AES_X86_64 329 tristate "AES cipher algorithms (x86_64)" 330 depends on (X86 || UML_X86) && 64BIT 331 select CRYPTO_ALGAPI 332 help 333 AES cipher algorithms (FIPS-197). AES uses the Rijndael 334 algorithm. 335 336 Rijndael appears to be consistently a very good performer in 337 both hardware and software across a wide range of computing 338 environments regardless of its use in feedback or non-feedback 339 modes. Its key setup time is excellent, and its key agility is 340 good. Rijndael's very low memory requirements make it very well 341 suited for restricted-space environments, in which it also 342 demonstrates excellent performance. Rijndael's operations are 343 among the easiest to defend against power and timing attacks. 344 345 The AES specifies three key sizes: 128, 192 and 256 bits 346 347 See <http://csrc.nist.gov/encryption/aes/> for more information. 348 349config CRYPTO_CAST5 350 tristate "CAST5 (CAST-128) cipher algorithm" 351 select CRYPTO_ALGAPI 352 help 353 The CAST5 encryption algorithm (synonymous with CAST-128) is 354 described in RFC2144. 355 356config CRYPTO_CAST6 357 tristate "CAST6 (CAST-256) cipher algorithm" 358 select CRYPTO_ALGAPI 359 help 360 The CAST6 encryption algorithm (synonymous with CAST-256) is 361 described in RFC2612. 362 363config CRYPTO_TEA 364 tristate "TEA, XTEA and XETA cipher algorithms" 365 select CRYPTO_ALGAPI 366 help 367 TEA cipher algorithm. 368 369 Tiny Encryption Algorithm is a simple cipher that uses 370 many rounds for security. It is very fast and uses 371 little memory. 372 373 Xtendend Tiny Encryption Algorithm is a modification to 374 the TEA algorithm to address a potential key weakness 375 in the TEA algorithm. 376 377 Xtendend Encryption Tiny Algorithm is a mis-implementation 378 of the XTEA algorithm for compatibility purposes. 379 380config CRYPTO_ARC4 381 tristate "ARC4 cipher algorithm" 382 select CRYPTO_ALGAPI 383 help 384 ARC4 cipher algorithm. 385 386 ARC4 is a stream cipher using keys ranging from 8 bits to 2048 387 bits in length. This algorithm is required for driver-based 388 WEP, but it should not be for other purposes because of the 389 weakness of the algorithm. 390 391config CRYPTO_KHAZAD 392 tristate "Khazad cipher algorithm" 393 select CRYPTO_ALGAPI 394 help 395 Khazad cipher algorithm. 396 397 Khazad was a finalist in the initial NESSIE competition. It is 398 an algorithm optimized for 64-bit processors with good performance 399 on 32-bit processors. Khazad uses an 128 bit key size. 400 401 See also: 402 <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html> 403 404config CRYPTO_ANUBIS 405 tristate "Anubis cipher algorithm" 406 select CRYPTO_ALGAPI 407 help 408 Anubis cipher algorithm. 409 410 Anubis is a variable key length cipher which can use keys from 411 128 bits to 320 bits in length. It was evaluated as a entrant 412 in the NESSIE competition. 413 414 See also: 415 <https://www.cosic.esat.kuleuven.ac.be/nessie/reports/> 416 <http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html> 417 418 419config CRYPTO_DEFLATE 420 tristate "Deflate compression algorithm" 421 select CRYPTO_ALGAPI 422 select ZLIB_INFLATE 423 select ZLIB_DEFLATE 424 help 425 This is the Deflate algorithm (RFC1951), specified for use in 426 IPSec with the IPCOMP protocol (RFC3173, RFC2394). 427 428 You will most probably want this if using IPSec. 429 430config CRYPTO_MICHAEL_MIC 431 tristate "Michael MIC keyed digest algorithm" 432 select CRYPTO_ALGAPI 433 help 434 Michael MIC is used for message integrity protection in TKIP 435 (IEEE 802.11i). This algorithm is required for TKIP, but it 436 should not be used for other purposes because of the weakness 437 of the algorithm. 438 439config CRYPTO_CRC32C 440 tristate "CRC32c CRC algorithm" 441 select CRYPTO_ALGAPI 442 select LIBCRC32C 443 help 444 Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used 445 by iSCSI for header and data digests and by others. 446 See Castagnoli93. This implementation uses lib/libcrc32c. 447 Module will be crc32c. 448 449config CRYPTO_CAMELLIA 450 tristate "Camellia cipher algorithms" 451 depends on CRYPTO 452 select CRYPTO_ALGAPI 453 help 454 Camellia cipher algorithms module. 455 456 Camellia is a symmetric key block cipher developed jointly 457 at NTT and Mitsubishi Electric Corporation. 458 459 The Camellia specifies three key sizes: 128, 192 and 256 bits. 460 461 See also: 462 <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html> 463 464config CRYPTO_TEST 465 tristate "Testing module" 466 depends on m 467 select CRYPTO_ALGAPI 468 help 469 Quick & dirty crypto test module. 470 471source "drivers/crypto/Kconfig" 472 473endif # if CRYPTO 474