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