crypto/Kconfig

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