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https://github.com/torvalds/linux
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64470f1b85
Main module, this implements the Liskov Rivest Wagner block cipher mode in the new blockcipher API. The implementation is based on ecb.c. The LRW-32-AES specification I used can be found at: http://grouper.ieee.org/groups/1619/email/pdf00017.pdf It implements the optimization specified as optional in the specification, and in addition it uses optimized multiplication routines from gf128mul.c. Since gf128mul.[ch] is not tested on bigendian, this cipher mode may currently fail badly on bigendian machines. Signed-off-by: Rik Snel <rsnel@cube.dyndns.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
472 lines
14 KiB
Text
472 lines
14 KiB
Text
#
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# Cryptographic API Configuration
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#
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menu "Cryptographic options"
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config CRYPTO
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bool "Cryptographic API"
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help
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This option provides the core Cryptographic API.
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if CRYPTO
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config CRYPTO_ALGAPI
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tristate
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help
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This option provides the API for cryptographic algorithms.
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config CRYPTO_BLKCIPHER
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tristate
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select CRYPTO_ALGAPI
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config CRYPTO_HASH
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tristate
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select CRYPTO_ALGAPI
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config CRYPTO_MANAGER
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tristate "Cryptographic algorithm manager"
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select CRYPTO_ALGAPI
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help
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Create default cryptographic template instantiations such as
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cbc(aes).
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config CRYPTO_HMAC
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tristate "HMAC support"
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select CRYPTO_HASH
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select CRYPTO_MANAGER
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help
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HMAC: Keyed-Hashing for Message Authentication (RFC2104).
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This is required for IPSec.
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config CRYPTO_XCBC
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tristate "XCBC support"
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depends on EXPERIMENTAL
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select CRYPTO_HASH
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select CRYPTO_MANAGER
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help
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XCBC: Keyed-Hashing with encryption algorithm
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http://www.ietf.org/rfc/rfc3566.txt
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http://csrc.nist.gov/encryption/modes/proposedmodes/
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xcbc-mac/xcbc-mac-spec.pdf
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config CRYPTO_NULL
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tristate "Null algorithms"
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select CRYPTO_ALGAPI
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help
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These are 'Null' algorithms, used by IPsec, which do nothing.
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config CRYPTO_MD4
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tristate "MD4 digest algorithm"
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select CRYPTO_ALGAPI
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help
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MD4 message digest algorithm (RFC1320).
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config CRYPTO_MD5
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tristate "MD5 digest algorithm"
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select CRYPTO_ALGAPI
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help
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MD5 message digest algorithm (RFC1321).
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config CRYPTO_SHA1
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tristate "SHA1 digest algorithm"
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select CRYPTO_ALGAPI
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help
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SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
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config CRYPTO_SHA1_S390
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tristate "SHA1 digest algorithm (s390)"
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depends on S390
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select CRYPTO_ALGAPI
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help
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This is the s390 hardware accelerated implementation of the
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SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
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config CRYPTO_SHA256
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tristate "SHA256 digest algorithm"
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select CRYPTO_ALGAPI
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help
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SHA256 secure hash standard (DFIPS 180-2).
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This version of SHA implements a 256 bit hash with 128 bits of
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security against collision attacks.
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config CRYPTO_SHA256_S390
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tristate "SHA256 digest algorithm (s390)"
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depends on S390
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select CRYPTO_ALGAPI
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help
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This is the s390 hardware accelerated implementation of the
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SHA256 secure hash standard (DFIPS 180-2).
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This version of SHA implements a 256 bit hash with 128 bits of
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security against collision attacks.
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config CRYPTO_SHA512
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tristate "SHA384 and SHA512 digest algorithms"
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select CRYPTO_ALGAPI
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help
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SHA512 secure hash standard (DFIPS 180-2).
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This version of SHA implements a 512 bit hash with 256 bits of
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security against collision attacks.
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This code also includes SHA-384, a 384 bit hash with 192 bits
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of security against collision attacks.
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config CRYPTO_WP512
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tristate "Whirlpool digest algorithms"
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select CRYPTO_ALGAPI
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help
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Whirlpool hash algorithm 512, 384 and 256-bit hashes
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Whirlpool-512 is part of the NESSIE cryptographic primitives.
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Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
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See also:
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<http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
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config CRYPTO_TGR192
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tristate "Tiger digest algorithms"
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select CRYPTO_ALGAPI
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help
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Tiger hash algorithm 192, 160 and 128-bit hashes
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Tiger is a hash function optimized for 64-bit processors while
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still having decent performance on 32-bit processors.
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Tiger was developed by Ross Anderson and Eli Biham.
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See also:
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<http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
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config CRYPTO_GF128MUL
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tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
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depends on EXPERIMENTAL
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help
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Efficient table driven implementation of multiplications in the
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field GF(2^128). This is needed by some cypher modes. This
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option will be selected automatically if you select such a
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cipher mode. Only select this option by hand if you expect to load
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an external module that requires these functions.
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config CRYPTO_ECB
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tristate "ECB support"
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select CRYPTO_BLKCIPHER
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select CRYPTO_MANAGER
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default m
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help
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ECB: Electronic CodeBook mode
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This is the simplest block cipher algorithm. It simply encrypts
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the input block by block.
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config CRYPTO_CBC
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tristate "CBC support"
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select CRYPTO_BLKCIPHER
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select CRYPTO_MANAGER
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default m
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help
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CBC: Cipher Block Chaining mode
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This block cipher algorithm is required for IPSec.
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config CRYPTO_LRW
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tristate "LRW support (EXPERIMENTAL)"
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depends on EXPERIMENTAL
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select CRYPTO_BLKCIPHER
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select CRYPTO_MANAGER
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select CRYPTO_GF128MUL
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help
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LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
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narrow block cipher mode for dm-crypt. Use it with cipher
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specification string aes-lrw-benbi, the key must be 256, 320 or 384.
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The first 128, 192 or 256 bits in the key are used for AES and the
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rest is used to tie each cipher block to its logical position.
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config CRYPTO_DES
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tristate "DES and Triple DES EDE cipher algorithms"
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select CRYPTO_ALGAPI
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help
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DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
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config CRYPTO_DES_S390
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tristate "DES and Triple DES cipher algorithms (s390)"
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depends on S390
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select CRYPTO_ALGAPI
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select CRYPTO_BLKCIPHER
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help
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DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
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config CRYPTO_BLOWFISH
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tristate "Blowfish cipher algorithm"
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select CRYPTO_ALGAPI
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help
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Blowfish cipher algorithm, by Bruce Schneier.
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This is a variable key length cipher which can use keys from 32
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bits to 448 bits in length. It's fast, simple and specifically
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designed for use on "large microprocessors".
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See also:
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<http://www.schneier.com/blowfish.html>
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config CRYPTO_TWOFISH
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tristate "Twofish cipher algorithm"
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select CRYPTO_ALGAPI
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select CRYPTO_TWOFISH_COMMON
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help
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Twofish cipher algorithm.
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Twofish was submitted as an AES (Advanced Encryption Standard)
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candidate cipher by researchers at CounterPane Systems. It is a
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16 round block cipher supporting key sizes of 128, 192, and 256
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bits.
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See also:
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<http://www.schneier.com/twofish.html>
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config CRYPTO_TWOFISH_COMMON
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tristate
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help
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Common parts of the Twofish cipher algorithm shared by the
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generic c and the assembler implementations.
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config CRYPTO_TWOFISH_586
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tristate "Twofish cipher algorithms (i586)"
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depends on (X86 || UML_X86) && !64BIT
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select CRYPTO_ALGAPI
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select CRYPTO_TWOFISH_COMMON
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help
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Twofish cipher algorithm.
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Twofish was submitted as an AES (Advanced Encryption Standard)
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candidate cipher by researchers at CounterPane Systems. It is a
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16 round block cipher supporting key sizes of 128, 192, and 256
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bits.
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See also:
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<http://www.schneier.com/twofish.html>
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config CRYPTO_TWOFISH_X86_64
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tristate "Twofish cipher algorithm (x86_64)"
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depends on (X86 || UML_X86) && 64BIT
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select CRYPTO_ALGAPI
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select CRYPTO_TWOFISH_COMMON
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help
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Twofish cipher algorithm (x86_64).
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Twofish was submitted as an AES (Advanced Encryption Standard)
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candidate cipher by researchers at CounterPane Systems. It is a
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16 round block cipher supporting key sizes of 128, 192, and 256
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bits.
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See also:
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<http://www.schneier.com/twofish.html>
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config CRYPTO_SERPENT
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tristate "Serpent cipher algorithm"
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select CRYPTO_ALGAPI
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help
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Serpent cipher algorithm, by Anderson, Biham & Knudsen.
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Keys are allowed to be from 0 to 256 bits in length, in steps
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of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
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variant of Serpent for compatibility with old kerneli code.
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See also:
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<http://www.cl.cam.ac.uk/~rja14/serpent.html>
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config CRYPTO_AES
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tristate "AES cipher algorithms"
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select CRYPTO_ALGAPI
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help
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AES cipher algorithms (FIPS-197). AES uses the Rijndael
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algorithm.
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Rijndael appears to be consistently a very good performer in
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both hardware and software across a wide range of computing
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environments regardless of its use in feedback or non-feedback
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modes. Its key setup time is excellent, and its key agility is
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good. Rijndael's very low memory requirements make it very well
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suited for restricted-space environments, in which it also
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demonstrates excellent performance. Rijndael's operations are
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among the easiest to defend against power and timing attacks.
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The AES specifies three key sizes: 128, 192 and 256 bits
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See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
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config CRYPTO_AES_586
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tristate "AES cipher algorithms (i586)"
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depends on (X86 || UML_X86) && !64BIT
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select CRYPTO_ALGAPI
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help
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AES cipher algorithms (FIPS-197). AES uses the Rijndael
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algorithm.
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Rijndael appears to be consistently a very good performer in
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both hardware and software across a wide range of computing
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environments regardless of its use in feedback or non-feedback
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modes. Its key setup time is excellent, and its key agility is
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good. Rijndael's very low memory requirements make it very well
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suited for restricted-space environments, in which it also
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demonstrates excellent performance. Rijndael's operations are
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among the easiest to defend against power and timing attacks.
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The AES specifies three key sizes: 128, 192 and 256 bits
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See <http://csrc.nist.gov/encryption/aes/> for more information.
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config CRYPTO_AES_X86_64
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tristate "AES cipher algorithms (x86_64)"
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depends on (X86 || UML_X86) && 64BIT
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select CRYPTO_ALGAPI
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help
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AES cipher algorithms (FIPS-197). AES uses the Rijndael
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algorithm.
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Rijndael appears to be consistently a very good performer in
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both hardware and software across a wide range of computing
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environments regardless of its use in feedback or non-feedback
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modes. Its key setup time is excellent, and its key agility is
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good. Rijndael's very low memory requirements make it very well
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suited for restricted-space environments, in which it also
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demonstrates excellent performance. Rijndael's operations are
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among the easiest to defend against power and timing attacks.
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The AES specifies three key sizes: 128, 192 and 256 bits
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See <http://csrc.nist.gov/encryption/aes/> for more information.
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config CRYPTO_AES_S390
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tristate "AES cipher algorithms (s390)"
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depends on S390
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select CRYPTO_ALGAPI
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select CRYPTO_BLKCIPHER
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help
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This is the s390 hardware accelerated implementation of the
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AES cipher algorithms (FIPS-197). AES uses the Rijndael
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algorithm.
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Rijndael appears to be consistently a very good performer in
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both hardware and software across a wide range of computing
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environments regardless of its use in feedback or non-feedback
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modes. Its key setup time is excellent, and its key agility is
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good. Rijndael's very low memory requirements make it very well
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suited for restricted-space environments, in which it also
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demonstrates excellent performance. Rijndael's operations are
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among the easiest to defend against power and timing attacks.
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On s390 the System z9-109 currently only supports the key size
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of 128 bit.
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config CRYPTO_CAST5
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tristate "CAST5 (CAST-128) cipher algorithm"
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select CRYPTO_ALGAPI
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help
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The CAST5 encryption algorithm (synonymous with CAST-128) is
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described in RFC2144.
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config CRYPTO_CAST6
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tristate "CAST6 (CAST-256) cipher algorithm"
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select CRYPTO_ALGAPI
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help
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The CAST6 encryption algorithm (synonymous with CAST-256) is
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described in RFC2612.
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config CRYPTO_TEA
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tristate "TEA, XTEA and XETA cipher algorithms"
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select CRYPTO_ALGAPI
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help
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TEA cipher algorithm.
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Tiny Encryption Algorithm is a simple cipher that uses
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many rounds for security. It is very fast and uses
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little memory.
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Xtendend Tiny Encryption Algorithm is a modification to
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the TEA algorithm to address a potential key weakness
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in the TEA algorithm.
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Xtendend Encryption Tiny Algorithm is a mis-implementation
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of the XTEA algorithm for compatibility purposes.
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config CRYPTO_ARC4
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tristate "ARC4 cipher algorithm"
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select CRYPTO_ALGAPI
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help
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ARC4 cipher algorithm.
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ARC4 is a stream cipher using keys ranging from 8 bits to 2048
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bits in length. This algorithm is required for driver-based
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WEP, but it should not be for other purposes because of the
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weakness of the algorithm.
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config CRYPTO_KHAZAD
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tristate "Khazad cipher algorithm"
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select CRYPTO_ALGAPI
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help
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Khazad cipher algorithm.
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Khazad was a finalist in the initial NESSIE competition. It is
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an algorithm optimized for 64-bit processors with good performance
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on 32-bit processors. Khazad uses an 128 bit key size.
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See also:
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<http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
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config CRYPTO_ANUBIS
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tristate "Anubis cipher algorithm"
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select CRYPTO_ALGAPI
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help
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Anubis cipher algorithm.
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Anubis is a variable key length cipher which can use keys from
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128 bits to 320 bits in length. It was evaluated as a entrant
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in the NESSIE competition.
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See also:
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<https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
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<http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
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config CRYPTO_DEFLATE
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tristate "Deflate compression algorithm"
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select CRYPTO_ALGAPI
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select ZLIB_INFLATE
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select ZLIB_DEFLATE
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help
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This is the Deflate algorithm (RFC1951), specified for use in
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IPSec with the IPCOMP protocol (RFC3173, RFC2394).
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You will most probably want this if using IPSec.
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config CRYPTO_MICHAEL_MIC
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tristate "Michael MIC keyed digest algorithm"
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select CRYPTO_ALGAPI
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help
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Michael MIC is used for message integrity protection in TKIP
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(IEEE 802.11i). This algorithm is required for TKIP, but it
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should not be used for other purposes because of the weakness
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of the algorithm.
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config CRYPTO_CRC32C
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tristate "CRC32c CRC algorithm"
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select CRYPTO_ALGAPI
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select LIBCRC32C
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help
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Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
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by iSCSI for header and data digests and by others.
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See Castagnoli93. This implementation uses lib/libcrc32c.
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Module will be crc32c.
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config CRYPTO_TEST
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tristate "Testing module"
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depends on m
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select CRYPTO_ALGAPI
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help
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Quick & dirty crypto test module.
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source "drivers/crypto/Kconfig"
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endif # if CRYPTO
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endmenu
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