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         select CRYPTO_ALGAPI2
  35         help
  36           This option provides the API for cryptographic algorithms.
  37
  38 config CRYPTO_ALGAPI2
  39         tristate
  40
  41 config CRYPTO_AEAD
  42         tristate
  43         select CRYPTO_AEAD2
  44         select CRYPTO_ALGAPI
  45
  46 config CRYPTO_AEAD2
  47         tristate
  48         select CRYPTO_ALGAPI2
  49
  50 config CRYPTO_BLKCIPHER
  51         tristate
  52         select CRYPTO_BLKCIPHER2
  53         select CRYPTO_ALGAPI
  54
  55 config CRYPTO_BLKCIPHER2
  56         tristate
  57         select CRYPTO_ALGAPI2
  58         select CRYPTO_RNG2
  59
  60 config CRYPTO_HASH
  61         tristate
  62         select CRYPTO_HASH2
  63         select CRYPTO_ALGAPI
  64
  65 config CRYPTO_HASH2
  66         tristate
  67         select CRYPTO_ALGAPI2
  68
  69 config CRYPTO_RNG
  70         tristate
  71         select CRYPTO_RNG2
  72         select CRYPTO_ALGAPI
  73
  74 config CRYPTO_RNG2
  75         tristate
  76         select CRYPTO_ALGAPI2
  77
  78 config CRYPTO_MANAGER
  79         tristate "Cryptographic algorithm manager"
  80         select CRYPTO_MANAGER2
  81         help
  82           Create default cryptographic template instantiations such as
  83           cbc(aes).
  84
  85 config CRYPTO_MANAGER2
  86         def_tristate CRYPTO_MANAGER || (CRYPTO_MANAGER!=n && CRYPTO_ALGAPI=y)
  87         select CRYPTO_AEAD2
  88         select CRYPTO_HASH2
  89         select CRYPTO_BLKCIPHER2
  90
  91 config CRYPTO_GF128MUL
  92         tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
  93         depends on EXPERIMENTAL
  94         help
  95           Efficient table driven implementation of multiplications in the
  96           field GF(2^128).  This is needed by some cypher modes. This
  97           option will be selected automatically if you select such a
  98           cipher mode.  Only select this option by hand if you expect to load
  99           an external module that requires these functions.
 100
 101 config CRYPTO_NULL
 102         tristate "Null algorithms"
 103         select CRYPTO_ALGAPI
 104         select CRYPTO_BLKCIPHER
 105         select CRYPTO_HASH
 106         help
 107           These are 'Null' algorithms, used by IPsec, which do nothing.
 108
 109 config CRYPTO_CRYPTD
 110         tristate "Software async crypto daemon"
 111         select CRYPTO_BLKCIPHER
 112         select CRYPTO_HASH
 113         select CRYPTO_MANAGER
 114         help
 115           This is a generic software asynchronous crypto daemon that
 116           converts an arbitrary synchronous software crypto algorithm
 117           into an asynchronous algorithm that executes in a kernel thread.
 118
 119 config CRYPTO_AUTHENC
 120         tristate "Authenc support"
 121         select CRYPTO_AEAD
 122         select CRYPTO_BLKCIPHER
 123         select CRYPTO_MANAGER
 124         select CRYPTO_HASH
 125         help
 126           Authenc: Combined mode wrapper for IPsec.
 127           This is required for IPSec.
 128
 129 config CRYPTO_TEST
 130         tristate "Testing module"
 131         depends on m
 132         select CRYPTO_MANAGER
 133         help
 134           Quick & dirty crypto test module.
 135
 136 comment "Authenticated Encryption with Associated Data"
 137
 138 config CRYPTO_CCM
 139         tristate "CCM support"
 140         select CRYPTO_CTR
 141         select CRYPTO_AEAD
 142         help
 143           Support for Counter with CBC MAC. Required for IPsec.
 144
 145 config CRYPTO_GCM
 146         tristate "GCM/GMAC support"
 147         select CRYPTO_CTR
 148         select CRYPTO_AEAD
 149         select CRYPTO_GF128MUL
 150         help
 151           Support for Galois/Counter Mode (GCM) and Galois Message
 152           Authentication Code (GMAC). Required for IPSec.
 153
 154 config CRYPTO_SEQIV
 155         tristate "Sequence Number IV Generator"
 156         select CRYPTO_AEAD
 157         select CRYPTO_BLKCIPHER
 158         select CRYPTO_RNG
 159         help
 160           This IV generator generates an IV based on a sequence number by
 161           xoring it with a salt.  This algorithm is mainly useful for CTR
 162
 163 comment "Block modes"
 164
 165 config CRYPTO_CBC
 166         tristate "CBC support"
 167         select CRYPTO_BLKCIPHER
 168         select CRYPTO_MANAGER
 169         help
 170           CBC: Cipher Block Chaining mode
 171           This block cipher algorithm is required for IPSec.
 172
 173 config CRYPTO_CTR
 174         tristate "CTR support"
 175         select CRYPTO_BLKCIPHER
 176         select CRYPTO_SEQIV
 177         select CRYPTO_MANAGER
 178         help
 179           CTR: Counter mode
 180           This block cipher algorithm is required for IPSec.
 181
 182 config CRYPTO_CTS
 183         tristate "CTS support"
 184         select CRYPTO_BLKCIPHER
 185         help
 186           CTS: Cipher Text Stealing
 187           This is the Cipher Text Stealing mode as described by
 188           Section 8 of rfc2040 and referenced by rfc3962.
 189           (rfc3962 includes errata information in its Appendix A)
 190           This mode is required for Kerberos gss mechanism support
 191           for AES encryption.
 192
 193 config CRYPTO_ECB
 194         tristate "ECB support"
 195         select CRYPTO_BLKCIPHER
 196         select CRYPTO_MANAGER
 197         help
 198           ECB: Electronic CodeBook mode
 199           This is the simplest block cipher algorithm.  It simply encrypts
 200           the input block by block.
 201
 202 config CRYPTO_LRW
 203         tristate "LRW support (EXPERIMENTAL)"
 204         depends on EXPERIMENTAL
 205         select CRYPTO_BLKCIPHER
 206         select CRYPTO_MANAGER
 207         select CRYPTO_GF128MUL
 208         help
 209           LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
 210           narrow block cipher mode for dm-crypt.  Use it with cipher
 211           specification string aes-lrw-benbi, the key must be 256, 320 or 384.
 212           The first 128, 192 or 256 bits in the key are used for AES and the
 213           rest is used to tie each cipher block to its logical position.
 214
 215 config CRYPTO_PCBC
 216         tristate "PCBC support"
 217         select CRYPTO_BLKCIPHER
 218         select CRYPTO_MANAGER
 219         help
 220           PCBC: Propagating Cipher Block Chaining mode
 221           This block cipher algorithm is required for RxRPC.
 222
 223 config CRYPTO_XTS
 224         tristate "XTS support (EXPERIMENTAL)"
 225         depends on EXPERIMENTAL
 226         select CRYPTO_BLKCIPHER
 227         select CRYPTO_MANAGER
 228         select CRYPTO_GF128MUL
 229         help
 230           XTS: IEEE1619/D16 narrow block cipher use with aes-xts-plain,
 231           key size 256, 384 or 512 bits. This implementation currently
 232           can't handle a sectorsize which is not a multiple of 16 bytes.
 233
 234 comment "Hash modes"
 235
 236 config CRYPTO_HMAC
 237         tristate "HMAC support"
 238         select CRYPTO_HASH
 239         select CRYPTO_MANAGER
 240         help
 241           HMAC: Keyed-Hashing for Message Authentication (RFC2104).
 242           This is required for IPSec.
 243
 244 config CRYPTO_XCBC
 245         tristate "XCBC support"
 246         depends on EXPERIMENTAL
 247         select CRYPTO_HASH
 248         select CRYPTO_MANAGER
 249         help
 250           XCBC: Keyed-Hashing with encryption algorithm
 251                 http://www.ietf.org/rfc/rfc3566.txt
 252                 http://csrc.nist.gov/encryption/modes/proposedmodes/
 253                  xcbc-mac/xcbc-mac-spec.pdf
 254
 255 comment "Digest"
 256
 257 config CRYPTO_CRC32C
 258         tristate "CRC32c CRC algorithm"
 259         select CRYPTO_HASH
 260         help
 261           Castagnoli, et al Cyclic Redundancy-Check Algorithm.  Used
 262           by iSCSI for header and data digests and by others.
 263           See Castagnoli93.  Module will be crc32c.
 264
 265 config CRYPTO_CRC32C_INTEL
 266         tristate "CRC32c INTEL hardware acceleration"
 267         depends on X86
 268         select CRYPTO_HASH
 269         help
 270           In Intel processor with SSE4.2 supported, the processor will
 271           support CRC32C implementation using hardware accelerated CRC32
 272           instruction. This option will create 'crc32c-intel' module,
 273           which will enable any routine to use the CRC32 instruction to
 274           gain performance compared with software implementation.
 275           Module will be crc32c-intel.
 276
 277 config CRYPTO_MD4
 278         tristate "MD4 digest algorithm"
 279         select CRYPTO_HASH
 280         help
 281           MD4 message digest algorithm (RFC1320).
 282
 283 config CRYPTO_MD5
 284         tristate "MD5 digest algorithm"
 285         select CRYPTO_HASH
 286         help
 287           MD5 message digest algorithm (RFC1321).
 288
 289 config CRYPTO_MICHAEL_MIC
 290         tristate "Michael MIC keyed digest algorithm"
 291         select CRYPTO_HASH
 292         help
 293           Michael MIC is used for message integrity protection in TKIP
 294           (IEEE 802.11i). This algorithm is required for TKIP, but it
 295           should not be used for other purposes because of the weakness
 296           of the algorithm.
 297
 298 config CRYPTO_RMD128
 299         tristate "RIPEMD-128 digest algorithm"
 300         select CRYPTO_HASH
 301         help
 302           RIPEMD-128 (ISO/IEC 10118-3:2004).
 303
 304           RIPEMD-128 is a 128-bit cryptographic hash function. It should only
 305           to be used as a secure replacement for RIPEMD. For other use cases
 306           RIPEMD-160 should be used.
 307
 308           Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
 309           See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
 310
 311 config CRYPTO_RMD160
 312         tristate "RIPEMD-160 digest algorithm"
 313         select CRYPTO_HASH
 314         help
 315           RIPEMD-160 (ISO/IEC 10118-3:2004).
 316
 317           RIPEMD-160 is a 160-bit cryptographic hash function. It is intended
 318           to be used as a secure replacement for the 128-bit hash functions
 319           MD4, MD5 and it's predecessor RIPEMD
 320           (not to be confused with RIPEMD-128).
 321
 322           It's speed is comparable to SHA1 and there are no known attacks
 323           against RIPEMD-160.
 324
 325           Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
 326           See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
 327
 328 config CRYPTO_RMD256
 329         tristate "RIPEMD-256 digest algorithm"
 330         select CRYPTO_HASH
 331         help
 332           RIPEMD-256 is an optional extension of RIPEMD-128 with a
 333           256 bit hash. It is intended for applications that require
 334           longer hash-results, without needing a larger security level
 335           (than RIPEMD-128).
 336
 337           Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
 338           See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
 339
 340 config CRYPTO_RMD320
 341         tristate "RIPEMD-320 digest algorithm"
 342         select CRYPTO_HASH
 343         help
 344           RIPEMD-320 is an optional extension of RIPEMD-160 with a
 345           320 bit hash. It is intended for applications that require
 346           longer hash-results, without needing a larger security level
 347           (than RIPEMD-160).
 348
 349           Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
 350           See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
 351
 352 config CRYPTO_SHA1
 353         tristate "SHA1 digest algorithm"
 354         select CRYPTO_HASH
 355         help
 356           SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
 357
 358 config CRYPTO_SHA256
 359         tristate "SHA224 and SHA256 digest algorithm"
 360         select CRYPTO_HASH
 361         help
 362           SHA256 secure hash standard (DFIPS 180-2).
 363
 364           This version of SHA implements a 256 bit hash with 128 bits of
 365           security against collision attacks.
 366
 367           This code also includes SHA-224, a 224 bit hash with 112 bits
 368           of security against collision attacks.
 369
 370 config CRYPTO_SHA512
 371         tristate "SHA384 and SHA512 digest algorithms"
 372         select CRYPTO_HASH
 373         help
 374           SHA512 secure hash standard (DFIPS 180-2).
 375
 376           This version of SHA implements a 512 bit hash with 256 bits of
 377           security against collision attacks.
 378
 379           This code also includes SHA-384, a 384 bit hash with 192 bits
 380           of security against collision attacks.
 381
 382 config CRYPTO_TGR192
 383         tristate "Tiger digest algorithms"
 384         select CRYPTO_HASH
 385         help
 386           Tiger hash algorithm 192, 160 and 128-bit hashes
 387
 388           Tiger is a hash function optimized for 64-bit processors while
 389           still having decent performance on 32-bit processors.
 390           Tiger was developed by Ross Anderson and Eli Biham.
 391
 392           See also:
 393           <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
 394
 395 config CRYPTO_WP512
 396         tristate "Whirlpool digest algorithms"
 397         select CRYPTO_HASH
 398         help
 399           Whirlpool hash algorithm 512, 384 and 256-bit hashes
 400
 401           Whirlpool-512 is part of the NESSIE cryptographic primitives.
 402           Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
 403
 404           See also:
 405           <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
 406
 407 comment "Ciphers"
 408
 409 config CRYPTO_AES
 410         tristate "AES cipher algorithms"
 411         select CRYPTO_ALGAPI
 412         help
 413           AES cipher algorithms (FIPS-197). AES uses the Rijndael
 414           algorithm.
 415
 416           Rijndael appears to be consistently a very good performer in
 417           both hardware and software across a wide range of computing
 418           environments regardless of its use in feedback or non-feedback
 419           modes. Its key setup time is excellent, and its key agility is
 420           good. Rijndael's very low memory requirements make it very well
 421           suited for restricted-space environments, in which it also
 422           demonstrates excellent performance. Rijndael's operations are
 423           among the easiest to defend against power and timing attacks.
 424
 425           The AES specifies three key sizes: 128, 192 and 256 bits
 426
 427           See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
 428
 429 config CRYPTO_AES_586
 430         tristate "AES cipher algorithms (i586)"
 431         depends on (X86 || UML_X86) && !64BIT
 432         select CRYPTO_ALGAPI
 433         select CRYPTO_AES
 434         help
 435           AES cipher algorithms (FIPS-197). AES uses the Rijndael
 436           algorithm.
 437
 438           Rijndael appears to be consistently a very good performer in
 439           both hardware and software across a wide range of computing
 440           environments regardless of its use in feedback or non-feedback
 441           modes. Its key setup time is excellent, and its key agility is
 442           good. Rijndael's very low memory requirements make it very well
 443           suited for restricted-space environments, in which it also
 444           demonstrates excellent performance. Rijndael's operations are
 445           among the easiest to defend against power and timing attacks.
 446
 447           The AES specifies three key sizes: 128, 192 and 256 bits
 448
 449           See <http://csrc.nist.gov/encryption/aes/> for more information.
 450
 451 config CRYPTO_AES_X86_64
 452         tristate "AES cipher algorithms (x86_64)"
 453         depends on (X86 || UML_X86) && 64BIT
 454         select CRYPTO_ALGAPI
 455         select CRYPTO_AES
 456         help
 457           AES cipher algorithms (FIPS-197). AES uses the Rijndael
 458           algorithm.
 459
 460           Rijndael appears to be consistently a very good performer in
 461           both hardware and software across a wide range of computing
 462           environments regardless of its use in feedback or non-feedback
 463           modes. Its key setup time is excellent, and its key agility is
 464           good. Rijndael's very low memory requirements make it very well
 465           suited for restricted-space environments, in which it also
 466           demonstrates excellent performance. Rijndael's operations are
 467           among the easiest to defend against power and timing attacks.
 468
 469           The AES specifies three key sizes: 128, 192 and 256 bits
 470
 471           See <http://csrc.nist.gov/encryption/aes/> for more information.
 472
 473 config CRYPTO_ANUBIS
 474         tristate "Anubis cipher algorithm"
 475         select CRYPTO_ALGAPI
 476         help
 477           Anubis cipher algorithm.
 478
 479           Anubis is a variable key length cipher which can use keys from
 480           128 bits to 320 bits in length.  It was evaluated as a entrant
 481           in the NESSIE competition.
 482
 483           See also:
 484           <https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
 485           <http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
 486
 487 config CRYPTO_ARC4
 488         tristate "ARC4 cipher algorithm"
 489         select CRYPTO_ALGAPI
 490         help
 491           ARC4 cipher algorithm.
 492
 493           ARC4 is a stream cipher using keys ranging from 8 bits to 2048
 494           bits in length.  This algorithm is required for driver-based
 495           WEP, but it should not be for other purposes because of the
 496           weakness of the algorithm.
 497
 498 config CRYPTO_BLOWFISH
 499         tristate "Blowfish cipher algorithm"
 500         select CRYPTO_ALGAPI
 501         help
 502           Blowfish cipher algorithm, by Bruce Schneier.
 503
 504           This is a variable key length cipher which can use keys from 32
 505           bits to 448 bits in length.  It's fast, simple and specifically
 506           designed for use on "large microprocessors".
 507
 508           See also:
 509           <http://www.schneier.com/blowfish.html>
 510
 511 config CRYPTO_CAMELLIA
 512         tristate "Camellia cipher algorithms"
 513         depends on CRYPTO
 514         select CRYPTO_ALGAPI
 515         help
 516           Camellia cipher algorithms module.
 517
 518           Camellia is a symmetric key block cipher developed jointly
 519           at NTT and Mitsubishi Electric Corporation.
 520
 521           The Camellia specifies three key sizes: 128, 192 and 256 bits.
 522
 523           See also:
 524           <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>
 525
 526 config CRYPTO_CAST5
 527         tristate "CAST5 (CAST-128) cipher algorithm"
 528         select CRYPTO_ALGAPI
 529         help
 530           The CAST5 encryption algorithm (synonymous with CAST-128) is
 531           described in RFC2144.
 532
 533 config CRYPTO_CAST6
 534         tristate "CAST6 (CAST-256) cipher algorithm"
 535         select CRYPTO_ALGAPI
 536         help
 537           The CAST6 encryption algorithm (synonymous with CAST-256) is
 538           described in RFC2612.
 539
 540 config CRYPTO_DES
 541         tristate "DES and Triple DES EDE cipher algorithms"
 542         select CRYPTO_ALGAPI
 543         help
 544           DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
 545
 546 config CRYPTO_FCRYPT
 547         tristate "FCrypt cipher algorithm"
 548         select CRYPTO_ALGAPI
 549         select CRYPTO_BLKCIPHER
 550         help
 551           FCrypt algorithm used by RxRPC.
 552
 553 config CRYPTO_KHAZAD
 554         tristate "Khazad cipher algorithm"
 555         select CRYPTO_ALGAPI
 556         help
 557           Khazad cipher algorithm.
 558
 559           Khazad was a finalist in the initial NESSIE competition.  It is
 560           an algorithm optimized for 64-bit processors with good performance
 561           on 32-bit processors.  Khazad uses an 128 bit key size.
 562
 563           See also:
 564           <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
 565
 566 config CRYPTO_SALSA20
 567         tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)"
 568         depends on EXPERIMENTAL
 569         select CRYPTO_BLKCIPHER
 570         help
 571           Salsa20 stream cipher algorithm.
 572
 573           Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
 574           Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
 575
 576           The Salsa20 stream cipher algorithm is designed by Daniel J.
 577           Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
 578
 579 config CRYPTO_SALSA20_586
 580         tristate "Salsa20 stream cipher algorithm (i586) (EXPERIMENTAL)"
 581         depends on (X86 || UML_X86) && !64BIT
 582         depends on EXPERIMENTAL
 583         select CRYPTO_BLKCIPHER
 584         help
 585           Salsa20 stream cipher algorithm.
 586
 587           Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
 588           Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
 589
 590           The Salsa20 stream cipher algorithm is designed by Daniel J.
 591           Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
 592
 593 config CRYPTO_SALSA20_X86_64
 594         tristate "Salsa20 stream cipher algorithm (x86_64) (EXPERIMENTAL)"
 595         depends on (X86 || UML_X86) && 64BIT
 596         depends on EXPERIMENTAL
 597         select CRYPTO_BLKCIPHER
 598         help
 599           Salsa20 stream cipher algorithm.
 600
 601           Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
 602           Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
 603
 604           The Salsa20 stream cipher algorithm is designed by Daniel J.
 605           Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
 606
 607 config CRYPTO_SEED
 608         tristate "SEED cipher algorithm"
 609         select CRYPTO_ALGAPI
 610         help
 611           SEED cipher algorithm (RFC4269).
 612
 613           SEED is a 128-bit symmetric key block cipher that has been
 614           developed by KISA (Korea Information Security Agency) as a
 615           national standard encryption algorithm of the Republic of Korea.
 616           It is a 16 round block cipher with the key size of 128 bit.
 617
 618           See also:
 619           <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>
 620
 621 config CRYPTO_SERPENT
 622         tristate "Serpent cipher algorithm"
 623         select CRYPTO_ALGAPI
 624         help
 625           Serpent cipher algorithm, by Anderson, Biham & Knudsen.
 626
 627           Keys are allowed to be from 0 to 256 bits in length, in steps
 628           of 8 bits.  Also includes the 'Tnepres' algorithm, a reversed
 629           variant of Serpent for compatibility with old kerneli.org code.
 630
 631           See also:
 632           <http://www.cl.cam.ac.uk/~rja14/serpent.html>
 633
 634 config CRYPTO_TEA
 635         tristate "TEA, XTEA and XETA cipher algorithms"
 636         select CRYPTO_ALGAPI
 637         help
 638           TEA cipher algorithm.
 639
 640           Tiny Encryption Algorithm is a simple cipher that uses
 641           many rounds for security.  It is very fast and uses
 642           little memory.
 643
 644           Xtendend Tiny Encryption Algorithm is a modification to
 645           the TEA algorithm to address a potential key weakness
 646           in the TEA algorithm.
 647
 648           Xtendend Encryption Tiny Algorithm is a mis-implementation
 649           of the XTEA algorithm for compatibility purposes.
 650
 651 config CRYPTO_TWOFISH
 652         tristate "Twofish cipher algorithm"
 653         select CRYPTO_ALGAPI
 654         select CRYPTO_TWOFISH_COMMON
 655         help
 656           Twofish cipher algorithm.
 657
 658           Twofish was submitted as an AES (Advanced Encryption Standard)
 659           candidate cipher by researchers at CounterPane Systems.  It is a
 660           16 round block cipher supporting key sizes of 128, 192, and 256
 661           bits.
 662
 663           See also:
 664           <http://www.schneier.com/twofish.html>
 665
 666 config CRYPTO_TWOFISH_COMMON
 667         tristate
 668         help
 669           Common parts of the Twofish cipher algorithm shared by the
 670           generic c and the assembler implementations.
 671
 672 config CRYPTO_TWOFISH_586
 673         tristate "Twofish cipher algorithms (i586)"
 674         depends on (X86 || UML_X86) && !64BIT
 675         select CRYPTO_ALGAPI
 676         select CRYPTO_TWOFISH_COMMON
 677         help
 678           Twofish cipher algorithm.
 679
 680           Twofish was submitted as an AES (Advanced Encryption Standard)
 681           candidate cipher by researchers at CounterPane Systems.  It is a
 682           16 round block cipher supporting key sizes of 128, 192, and 256
 683           bits.
 684
 685           See also:
 686           <http://www.schneier.com/twofish.html>
 687
 688 config CRYPTO_TWOFISH_X86_64
 689         tristate "Twofish cipher algorithm (x86_64)"
 690         depends on (X86 || UML_X86) && 64BIT
 691         select CRYPTO_ALGAPI
 692         select CRYPTO_TWOFISH_COMMON
 693         help
 694           Twofish cipher algorithm (x86_64).
 695
 696           Twofish was submitted as an AES (Advanced Encryption Standard)
 697           candidate cipher by researchers at CounterPane Systems.  It is a
 698           16 round block cipher supporting key sizes of 128, 192, and 256
 699           bits.
 700
 701           See also:
 702           <http://www.schneier.com/twofish.html>
 703
 704 comment "Compression"
 705
 706 config CRYPTO_DEFLATE
 707         tristate "Deflate compression algorithm"
 708         select CRYPTO_ALGAPI
 709         select ZLIB_INFLATE
 710         select ZLIB_DEFLATE
 711         help
 712           This is the Deflate algorithm (RFC1951), specified for use in
 713           IPSec with the IPCOMP protocol (RFC3173, RFC2394).
 714
 715           You will most probably want this if using IPSec.
 716
 717 config CRYPTO_LZO
 718         tristate "LZO compression algorithm"
 719         select CRYPTO_ALGAPI
 720         select LZO_COMPRESS
 721         select LZO_DECOMPRESS
 722         help
 723           This is the LZO algorithm.
 724
 725 comment "Random Number Generation"
 726
 727 config CRYPTO_ANSI_CPRNG
 728         tristate "Pseudo Random Number Generation for Cryptographic modules"
 729         select CRYPTO_AES
 730         select CRYPTO_RNG
 731         select CRYPTO_FIPS
 732         help
 733           This option enables the generic pseudo random number generator
 734           for cryptographic modules.  Uses the Algorithm specified in
 735           ANSI X9.31 A.2.4
 736
 737 source "drivers/crypto/Kconfig"
 738
 739 endif   # if CRYPTO