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         help
  27           This options enables the fips boot option which is
  28           required if you want to system to operate in a FIPS 200
  29           certification.  You should say no unless you know what
  30           this is.
  31
  32 config CRYPTO_ALGAPI
  33         tristate
  34         help
  35           This option provides the API for cryptographic algorithms.
  36
  37 config CRYPTO_AEAD
  38         tristate
  39         select CRYPTO_ALGAPI
  40
  41 config CRYPTO_BLKCIPHER
  42         tristate
  43         select CRYPTO_ALGAPI
  44         select CRYPTO_RNG
  45
  46 config CRYPTO_HASH
  47         tristate
  48         select CRYPTO_ALGAPI
  49
  50 config CRYPTO_RNG
  51         tristate
  52         select CRYPTO_ALGAPI
  53
  54 config CRYPTO_MANAGER
  55         tristate "Cryptographic algorithm manager"
  56         select CRYPTO_AEAD
  57         select CRYPTO_HASH
  58         select CRYPTO_BLKCIPHER
  59         help
  60           Create default cryptographic template instantiations such as
  61           cbc(aes).
  62
  63 config CRYPTO_GF128MUL
  64         tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
  65         depends on EXPERIMENTAL
  66         help
  67           Efficient table driven implementation of multiplications in the
  68           field GF(2^128).  This is needed by some cypher modes. This
  69           option will be selected automatically if you select such a
  70           cipher mode.  Only select this option by hand if you expect to load
  71           an external module that requires these functions.
  72
  73 config CRYPTO_NULL
  74         tristate "Null algorithms"
  75         select CRYPTO_ALGAPI
  76         select CRYPTO_BLKCIPHER
  77         help
  78           These are 'Null' algorithms, used by IPsec, which do nothing.
  79
  80 config CRYPTO_CRYPTD
  81         tristate "Software async crypto daemon"
  82         select CRYPTO_BLKCIPHER
  83         select CRYPTO_HASH
  84         select CRYPTO_MANAGER
  85         help
  86           This is a generic software asynchronous crypto daemon that
  87           converts an arbitrary synchronous software crypto algorithm
  88           into an asynchronous algorithm that executes in a kernel thread.
  89
  90 config CRYPTO_AUTHENC
  91         tristate "Authenc support"
  92         select CRYPTO_AEAD
  93         select CRYPTO_BLKCIPHER
  94         select CRYPTO_MANAGER
  95         select CRYPTO_HASH
  96         help
  97           Authenc: Combined mode wrapper for IPsec.
  98           This is required for IPSec.
  99
 100 config CRYPTO_TEST
 101         tristate "Testing module"
 102         depends on m
 103         select CRYPTO_MANAGER
 104         help
 105           Quick & dirty crypto test module.
 106
 107 comment "Authenticated Encryption with Associated Data"
 108
 109 config CRYPTO_CCM
 110         tristate "CCM support"
 111         select CRYPTO_CTR
 112         select CRYPTO_AEAD
 113         help
 114           Support for Counter with CBC MAC. Required for IPsec.
 115
 116 config CRYPTO_GCM
 117         tristate "GCM/GMAC support"
 118         select CRYPTO_CTR
 119         select CRYPTO_AEAD
 120         select CRYPTO_GF128MUL
 121         help
 122           Support for Galois/Counter Mode (GCM) and Galois Message
 123           Authentication Code (GMAC). Required for IPSec.
 124
 125 config CRYPTO_SEQIV
 126         tristate "Sequence Number IV Generator"
 127         select CRYPTO_AEAD
 128         select CRYPTO_BLKCIPHER
 129         select CRYPTO_RNG
 130         help
 131           This IV generator generates an IV based on a sequence number by
 132           xoring it with a salt.  This algorithm is mainly useful for CTR
 133
 134 comment "Block modes"
 135
 136 config CRYPTO_CBC
 137         tristate "CBC support"
 138         select CRYPTO_BLKCIPHER
 139         select CRYPTO_MANAGER
 140         help
 141           CBC: Cipher Block Chaining mode
 142           This block cipher algorithm is required for IPSec.
 143
 144 config CRYPTO_CTR
 145         tristate "CTR support"
 146         select CRYPTO_BLKCIPHER
 147         select CRYPTO_SEQIV
 148         select CRYPTO_MANAGER
 149         help
 150           CTR: Counter mode
 151           This block cipher algorithm is required for IPSec.
 152
 153 config CRYPTO_CTS
 154         tristate "CTS support"
 155         select CRYPTO_BLKCIPHER
 156         help
 157           CTS: Cipher Text Stealing
 158           This is the Cipher Text Stealing mode as described by
 159           Section 8 of rfc2040 and referenced by rfc3962.
 160           (rfc3962 includes errata information in its Appendix A)
 161           This mode is required for Kerberos gss mechanism support
 162           for AES encryption.
 163
 164 config CRYPTO_ECB
 165         tristate "ECB support"
 166         select CRYPTO_BLKCIPHER
 167         select CRYPTO_MANAGER
 168         help
 169           ECB: Electronic CodeBook mode
 170           This is the simplest block cipher algorithm.  It simply encrypts
 171           the input block by block.
 172
 173 config 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
 186 config CRYPTO_PCBC
 187         tristate "PCBC support"
 188         select CRYPTO_BLKCIPHER
 189         select CRYPTO_MANAGER
 190         help
 191           PCBC: Propagating Cipher Block Chaining mode
 192           This block cipher algorithm is required for RxRPC.
 193
 194 config CRYPTO_XTS
 195         tristate "XTS support (EXPERIMENTAL)"
 196         depends on EXPERIMENTAL
 197         select CRYPTO_BLKCIPHER
 198         select CRYPTO_MANAGER
 199         select CRYPTO_GF128MUL
 200         help
 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.
 204
 205 comment "Hash modes"
 206
 207 config CRYPTO_HMAC
 208         tristate "HMAC support"
 209         select CRYPTO_HASH
 210         select CRYPTO_MANAGER
 211         help
 212           HMAC: Keyed-Hashing for Message Authentication (RFC2104).
 213           This is required for IPSec.
 214
 215 config CRYPTO_XCBC
 216         tristate "XCBC support"
 217         depends on EXPERIMENTAL
 218         select CRYPTO_HASH
 219         select CRYPTO_MANAGER
 220         help
 221           XCBC: Keyed-Hashing with encryption algorithm
 222                 http://www.ietf.org/rfc/rfc3566.txt
 223                 http://csrc.nist.gov/encryption/modes/proposedmodes/
 224                  xcbc-mac/xcbc-mac-spec.pdf
 225
 226 comment "Digest"
 227
 228 config CRYPTO_CRC32C
 229         tristate "CRC32c CRC algorithm"
 230         select CRYPTO_HASH
 231         select LIBCRC32C
 232         help
 233           Castagnoli, et al Cyclic Redundancy-Check Algorithm.  Used
 234           by iSCSI for header and data digests and by others.
 235           See Castagnoli93.  This implementation uses lib/libcrc32c.
 236           Module will be crc32c.
 237
 238 config CRYPTO_CRC32C_INTEL
 239         tristate "CRC32c INTEL hardware acceleration"
 240         depends on X86
 241         select CRYPTO_HASH
 242         help
 243           In Intel processor with SSE4.2 supported, the processor will
 244           support CRC32C implementation using hardware accelerated CRC32
 245           instruction. This option will create 'crc32c-intel' module,
 246           which will enable any routine to use the CRC32 instruction to
 247           gain performance compared with software implementation.
 248           Module will be crc32c-intel.
 249
 250 config CRYPTO_MD4
 251         tristate "MD4 digest algorithm"
 252         select CRYPTO_ALGAPI
 253         help
 254           MD4 message digest algorithm (RFC1320).
 255
 256 config CRYPTO_MD5
 257         tristate "MD5 digest algorithm"
 258         select CRYPTO_ALGAPI
 259         help
 260           MD5 message digest algorithm (RFC1321).
 261
 262 config CRYPTO_MICHAEL_MIC
 263         tristate "Michael MIC keyed digest algorithm"
 264         select CRYPTO_ALGAPI
 265         help
 266           Michael MIC is used for message integrity protection in TKIP
 267           (IEEE 802.11i). This algorithm is required for TKIP, but it
 268           should not be used for other purposes because of the weakness
 269           of the algorithm.
 270
 271 config CRYPTO_RMD128
 272         tristate "RIPEMD-128 digest algorithm"
 273         select CRYPTO_ALGAPI
 274         help
 275           RIPEMD-128 (ISO/IEC 10118-3:2004).
 276
 277           RIPEMD-128 is a 128-bit cryptographic hash function. It should only
 278           to be used as a secure replacement for RIPEMD. For other use cases
 279           RIPEMD-160 should be used.
 280
 281           Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
 282           See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
 283
 284 config CRYPTO_RMD160
 285         tristate "RIPEMD-160 digest algorithm"
 286         select CRYPTO_ALGAPI
 287         help
 288           RIPEMD-160 (ISO/IEC 10118-3:2004).
 289
 290           RIPEMD-160 is a 160-bit cryptographic hash function. It is intended
 291           to be used as a secure replacement for the 128-bit hash functions
 292           MD4, MD5 and it's predecessor RIPEMD
 293           (not to be confused with RIPEMD-128).
 294
 295           It's speed is comparable to SHA1 and there are no known attacks
 296           against RIPEMD-160.
 297
 298           Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
 299           See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
 300
 301 config CRYPTO_RMD256
 302         tristate "RIPEMD-256 digest algorithm"
 303         select CRYPTO_ALGAPI
 304         help
 305           RIPEMD-256 is an optional extension of RIPEMD-128 with a
 306           256 bit hash. It is intended for applications that require
 307           longer hash-results, without needing a larger security level
 308           (than RIPEMD-128).
 309
 310           Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
 311           See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
 312
 313 config CRYPTO_RMD320
 314         tristate "RIPEMD-320 digest algorithm"
 315         select CRYPTO_ALGAPI
 316         help
 317           RIPEMD-320 is an optional extension of RIPEMD-160 with a
 318           320 bit hash. It is intended for applications that require
 319           longer hash-results, without needing a larger security level
 320           (than RIPEMD-160).
 321
 322           Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
 323           See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
 324
 325 config CRYPTO_SHA1
 326         tristate "SHA1 digest algorithm"
 327         select CRYPTO_ALGAPI
 328         help
 329           SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
 330
 331 config CRYPTO_SHA256
 332         tristate "SHA224 and SHA256 digest algorithm"
 333         select CRYPTO_ALGAPI
 334         help
 335           SHA256 secure hash standard (DFIPS 180-2).
 336
 337           This version of SHA implements a 256 bit hash with 128 bits of
 338           security against collision attacks.
 339
 340           This code also includes SHA-224, a 224 bit hash with 112 bits
 341           of security against collision attacks.
 342
 343 config CRYPTO_SHA512
 344         tristate "SHA384 and SHA512 digest algorithms"
 345         select CRYPTO_ALGAPI
 346         help
 347           SHA512 secure hash standard (DFIPS 180-2).
 348
 349           This version of SHA implements a 512 bit hash with 256 bits of
 350           security against collision attacks.
 351
 352           This code also includes SHA-384, a 384 bit hash with 192 bits
 353           of security against collision attacks.
 354
 355 config CRYPTO_TGR192
 356         tristate "Tiger digest algorithms"
 357         select CRYPTO_ALGAPI
 358         help
 359           Tiger hash algorithm 192, 160 and 128-bit hashes
 360
 361           Tiger is a hash function optimized for 64-bit processors while
 362           still having decent performance on 32-bit processors.
 363           Tiger was developed by Ross Anderson and Eli Biham.
 364
 365           See also:
 366           <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
 367
 368 config CRYPTO_WP512
 369         tristate "Whirlpool digest algorithms"
 370         select CRYPTO_ALGAPI
 371         help
 372           Whirlpool hash algorithm 512, 384 and 256-bit hashes
 373
 374           Whirlpool-512 is part of the NESSIE cryptographic primitives.
 375           Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
 376
 377           See also:
 378           <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
 379
 380 comment "Ciphers"
 381
 382 config CRYPTO_AES
 383         tristate "AES cipher algorithms"
 384         select CRYPTO_ALGAPI
 385         help
 386           AES cipher algorithms (FIPS-197). AES uses the Rijndael
 387           algorithm.
 388
 389           Rijndael appears to be consistently a very good performer in
 390           both hardware and software across a wide range of computing
 391           environments regardless of its use in feedback or non-feedback
 392           modes. Its key setup time is excellent, and its key agility is
 393           good. Rijndael's very low memory requirements make it very well
 394           suited for restricted-space environments, in which it also
 395           demonstrates excellent performance. Rijndael's operations are
 396           among the easiest to defend against power and timing attacks.
 397
 398           The AES specifies three key sizes: 128, 192 and 256 bits
 399
 400           See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
 401
 402 config CRYPTO_AES_586
 403         tristate "AES cipher algorithms (i586)"
 404         depends on (X86 || UML_X86) && !64BIT
 405         select CRYPTO_ALGAPI
 406         select CRYPTO_AES
 407         help
 408           AES cipher algorithms (FIPS-197). AES uses the Rijndael
 409           algorithm.
 410
 411           Rijndael appears to be consistently a very good performer in
 412           both hardware and software across a wide range of computing
 413           environments regardless of its use in feedback or non-feedback
 414           modes. Its key setup time is excellent, and its key agility is
 415           good. Rijndael's very low memory requirements make it very well
 416           suited for restricted-space environments, in which it also
 417           demonstrates excellent performance. Rijndael's operations are
 418           among the easiest to defend against power and timing attacks.
 419
 420           The AES specifies three key sizes: 128, 192 and 256 bits
 421
 422           See <http://csrc.nist.gov/encryption/aes/> for more information.
 423
 424 config CRYPTO_AES_X86_64
 425         tristate "AES cipher algorithms (x86_64)"
 426         depends on (X86 || UML_X86) && 64BIT
 427         select CRYPTO_ALGAPI
 428         select CRYPTO_AES
 429         help
 430           AES cipher algorithms (FIPS-197). AES uses the Rijndael
 431           algorithm.
 432
 433           Rijndael appears to be consistently a very good performer in
 434           both hardware and software across a wide range of computing
 435           environments regardless of its use in feedback or non-feedback
 436           modes. Its key setup time is excellent, and its key agility is
 437           good. Rijndael's very low memory requirements make it very well
 438           suited for restricted-space environments, in which it also
 439           demonstrates excellent performance. Rijndael's operations are
 440           among the easiest to defend against power and timing attacks.
 441
 442           The AES specifies three key sizes: 128, 192 and 256 bits
 443
 444           See <http://csrc.nist.gov/encryption/aes/> for more information.
 445
 446 config CRYPTO_ANUBIS
 447         tristate "Anubis cipher algorithm"
 448         select CRYPTO_ALGAPI
 449         help
 450           Anubis cipher algorithm.
 451
 452           Anubis is a variable key length cipher which can use keys from
 453           128 bits to 320 bits in length.  It was evaluated as a entrant
 454           in the NESSIE competition.
 455
 456           See also:
 457           <https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
 458           <http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
 459
 460 config CRYPTO_ARC4
 461         tristate "ARC4 cipher algorithm"
 462         select CRYPTO_ALGAPI
 463         help
 464           ARC4 cipher algorithm.
 465
 466           ARC4 is a stream cipher using keys ranging from 8 bits to 2048
 467           bits in length.  This algorithm is required for driver-based
 468           WEP, but it should not be for other purposes because of the
 469           weakness of the algorithm.
 470
 471 config CRYPTO_BLOWFISH
 472         tristate "Blowfish cipher algorithm"
 473         select CRYPTO_ALGAPI
 474         help
 475           Blowfish cipher algorithm, by Bruce Schneier.
 476
 477           This is a variable key length cipher which can use keys from 32
 478           bits to 448 bits in length.  It's fast, simple and specifically
 479           designed for use on "large microprocessors".
 480
 481           See also:
 482           <http://www.schneier.com/blowfish.html>
 483
 484 config CRYPTO_CAMELLIA
 485         tristate "Camellia cipher algorithms"
 486         depends on CRYPTO
 487         select CRYPTO_ALGAPI
 488         help
 489           Camellia cipher algorithms module.
 490
 491           Camellia is a symmetric key block cipher developed jointly
 492           at NTT and Mitsubishi Electric Corporation.
 493
 494           The Camellia specifies three key sizes: 128, 192 and 256 bits.
 495
 496           See also:
 497           <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>
 498
 499 config CRYPTO_CAST5
 500         tristate "CAST5 (CAST-128) cipher algorithm"
 501         select CRYPTO_ALGAPI
 502         help
 503           The CAST5 encryption algorithm (synonymous with CAST-128) is
 504           described in RFC2144.
 505
 506 config CRYPTO_CAST6
 507         tristate "CAST6 (CAST-256) cipher algorithm"
 508         select CRYPTO_ALGAPI
 509         help
 510           The CAST6 encryption algorithm (synonymous with CAST-256) is
 511           described in RFC2612.
 512
 513 config CRYPTO_DES
 514         tristate "DES and Triple DES EDE cipher algorithms"
 515         select CRYPTO_ALGAPI
 516         help
 517           DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
 518
 519 config CRYPTO_FCRYPT
 520         tristate "FCrypt cipher algorithm"
 521         select CRYPTO_ALGAPI
 522         select CRYPTO_BLKCIPHER
 523         help
 524           FCrypt algorithm used by RxRPC.
 525
 526 config CRYPTO_KHAZAD
 527         tristate "Khazad cipher algorithm"
 528         select CRYPTO_ALGAPI
 529         help
 530           Khazad cipher algorithm.
 531
 532           Khazad was a finalist in the initial NESSIE competition.  It is
 533           an algorithm optimized for 64-bit processors with good performance
 534           on 32-bit processors.  Khazad uses an 128 bit key size.
 535
 536           See also:
 537           <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
 538
 539 config CRYPTO_SALSA20
 540         tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)"
 541         depends on EXPERIMENTAL
 542         select CRYPTO_BLKCIPHER
 543         help
 544           Salsa20 stream cipher algorithm.
 545
 546           Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
 547           Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
 548
 549           The Salsa20 stream cipher algorithm is designed by Daniel J.
 550           Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
 551
 552 config CRYPTO_SALSA20_586
 553         tristate "Salsa20 stream cipher algorithm (i586) (EXPERIMENTAL)"
 554         depends on (X86 || UML_X86) && !64BIT
 555         depends on EXPERIMENTAL
 556         select CRYPTO_BLKCIPHER
 557         help
 558           Salsa20 stream cipher algorithm.
 559
 560           Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
 561           Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
 562
 563           The Salsa20 stream cipher algorithm is designed by Daniel J.
 564           Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
 565
 566 config CRYPTO_SALSA20_X86_64
 567         tristate "Salsa20 stream cipher algorithm (x86_64) (EXPERIMENTAL)"
 568         depends on (X86 || UML_X86) && 64BIT
 569         depends on EXPERIMENTAL
 570         select CRYPTO_BLKCIPHER
 571         help
 572           Salsa20 stream cipher algorithm.
 573
 574           Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
 575           Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
 576
 577           The Salsa20 stream cipher algorithm is designed by Daniel J.
 578           Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
 579
 580 config CRYPTO_SEED
 581         tristate "SEED cipher algorithm"
 582         select CRYPTO_ALGAPI
 583         help
 584           SEED cipher algorithm (RFC4269).
 585
 586           SEED is a 128-bit symmetric key block cipher that has been
 587           developed by KISA (Korea Information Security Agency) as a
 588           national standard encryption algorithm of the Republic of Korea.
 589           It is a 16 round block cipher with the key size of 128 bit.
 590
 591           See also:
 592           <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>
 593
 594 config CRYPTO_SERPENT
 595         tristate "Serpent cipher algorithm"
 596         select CRYPTO_ALGAPI
 597         help
 598           Serpent cipher algorithm, by Anderson, Biham & Knudsen.
 599
 600           Keys are allowed to be from 0 to 256 bits in length, in steps
 601           of 8 bits.  Also includes the 'Tnepres' algorithm, a reversed
 602           variant of Serpent for compatibility with old kerneli.org code.
 603
 604           See also:
 605           <http://www.cl.cam.ac.uk/~rja14/serpent.html>
 606
 607 config CRYPTO_TEA
 608         tristate "TEA, XTEA and XETA cipher algorithms"
 609         select CRYPTO_ALGAPI
 610         help
 611           TEA cipher algorithm.
 612
 613           Tiny Encryption Algorithm is a simple cipher that uses
 614           many rounds for security.  It is very fast and uses
 615           little memory.
 616
 617           Xtendend Tiny Encryption Algorithm is a modification to
 618           the TEA algorithm to address a potential key weakness
 619           in the TEA algorithm.
 620
 621           Xtendend Encryption Tiny Algorithm is a mis-implementation
 622           of the XTEA algorithm for compatibility purposes.
 623
 624 config CRYPTO_TWOFISH
 625         tristate "Twofish cipher algorithm"
 626         select CRYPTO_ALGAPI
 627         select CRYPTO_TWOFISH_COMMON
 628         help
 629           Twofish cipher algorithm.
 630
 631           Twofish was submitted as an AES (Advanced Encryption Standard)
 632           candidate cipher by researchers at CounterPane Systems.  It is a
 633           16 round block cipher supporting key sizes of 128, 192, and 256
 634           bits.
 635
 636           See also:
 637           <http://www.schneier.com/twofish.html>
 638
 639 config CRYPTO_TWOFISH_COMMON
 640         tristate
 641         help
 642           Common parts of the Twofish cipher algorithm shared by the
 643           generic c and the assembler implementations.
 644
 645 config CRYPTO_TWOFISH_586
 646         tristate "Twofish cipher algorithms (i586)"
 647         depends on (X86 || UML_X86) && !64BIT
 648         select CRYPTO_ALGAPI
 649         select CRYPTO_TWOFISH_COMMON
 650         help
 651           Twofish cipher algorithm.
 652
 653           Twofish was submitted as an AES (Advanced Encryption Standard)
 654           candidate cipher by researchers at CounterPane Systems.  It is a
 655           16 round block cipher supporting key sizes of 128, 192, and 256
 656           bits.
 657
 658           See also:
 659           <http://www.schneier.com/twofish.html>
 660
 661 config CRYPTO_TWOFISH_X86_64
 662         tristate "Twofish cipher algorithm (x86_64)"
 663         depends on (X86 || UML_X86) && 64BIT
 664         select CRYPTO_ALGAPI
 665         select CRYPTO_TWOFISH_COMMON
 666         help
 667           Twofish cipher algorithm (x86_64).
 668
 669           Twofish was submitted as an AES (Advanced Encryption Standard)
 670           candidate cipher by researchers at CounterPane Systems.  It is a
 671           16 round block cipher supporting key sizes of 128, 192, and 256
 672           bits.
 673
 674           See also:
 675           <http://www.schneier.com/twofish.html>
 676
 677 comment "Compression"
 678
 679 config CRYPTO_DEFLATE
 680         tristate "Deflate compression algorithm"
 681         select CRYPTO_ALGAPI
 682         select ZLIB_INFLATE
 683         select ZLIB_DEFLATE
 684         help
 685           This is the Deflate algorithm (RFC1951), specified for use in
 686           IPSec with the IPCOMP protocol (RFC3173, RFC2394).
 687
 688           You will most probably want this if using IPSec.
 689
 690 config CRYPTO_LZO
 691         tristate "LZO compression algorithm"
 692         select CRYPTO_ALGAPI
 693         select LZO_COMPRESS
 694         select LZO_DECOMPRESS
 695         help
 696           This is the LZO algorithm.
 697
 698 comment "Random Number Generation"
 699
 700 config CRYPTO_ANSI_CPRNG
 701         tristate "Pseudo Random Number Generation for Cryptographic modules"
 702         select CRYPTO_AES
 703         select CRYPTO_RNG
 704         select CRYPTO_FIPS
 705         help
 706           This option enables the generic pseudo random number generator
 707           for cryptographic modules.  Uses the Algorithm specified in
 708           ANSI X9.31 A.2.4
 709
 710 source "drivers/crypto/Kconfig"
 711
 712 endif   # if CRYPTO