crypto/Kconfig - kernel/panda - Git at Google

 #
 # Generic algorithms support
 #
 config XOR_BLOCKS
 	tristate

 #
 # async_tx api: hardware offloaded memory transfer/transform support
 #
 source "crypto/async_tx/Kconfig"

 #
 # Cryptographic API Configuration
 #
 menuconfig CRYPTO
 	tristate "Cryptographic API"
 	help
 	  This option provides the core Cryptographic API.

 if CRYPTO

 config CRYPTO_ALGAPI
 	tristate
 	help
 	  This option provides the API for cryptographic algorithms.

 config CRYPTO_AEAD
 	tristate
 	select CRYPTO_ALGAPI

 config CRYPTO_BLKCIPHER
 	tristate
 	select CRYPTO_ALGAPI

 config CRYPTO_SEQIV
 	tristate "Sequence Number IV Generator"
 	select CRYPTO_AEAD
 	select CRYPTO_BLKCIPHER
 	help
 	  This IV generator generates an IV based on a sequence number by
 	  xoring it with a salt.  This algorithm is mainly useful for CTR
 	  and similar modes.

 config CRYPTO_HASH
 	tristate
 	select CRYPTO_ALGAPI

 config CRYPTO_MANAGER
 	tristate "Cryptographic algorithm manager"
 	select CRYPTO_ALGAPI
 	help
 	  Create default cryptographic template instantiations such as
 	  cbc(aes).

 config CRYPTO_HMAC
 	tristate "HMAC support"
 	select CRYPTO_HASH
 	select CRYPTO_MANAGER
 	help
 	  HMAC: Keyed-Hashing for Message Authentication (RFC2104).
 	  This is required for IPSec.

 config CRYPTO_XCBC
 	tristate "XCBC support"
 	depends on EXPERIMENTAL
 	select CRYPTO_HASH
 	select CRYPTO_MANAGER
 	help
 	  XCBC: Keyed-Hashing with encryption algorithm
 		http://www.ietf.org/rfc/rfc3566.txt
 		http://csrc.nist.gov/encryption/modes/proposedmodes/
 		 xcbc-mac/xcbc-mac-spec.pdf

 config CRYPTO_NULL
 	tristate "Null algorithms"
 	select CRYPTO_ALGAPI
 	select CRYPTO_BLKCIPHER
 	help
 	  These are 'Null' algorithms, used by IPsec, which do nothing.

 config CRYPTO_MD4
 	tristate "MD4 digest algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  MD4 message digest algorithm (RFC1320).

 config CRYPTO_MD5
 	tristate "MD5 digest algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  MD5 message digest algorithm (RFC1321).

 config CRYPTO_SHA1
 	tristate "SHA1 digest algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).

 config CRYPTO_SHA256
 	tristate "SHA224 and SHA256 digest algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  SHA256 secure hash standard (DFIPS 180-2).

 	  This version of SHA implements a 256 bit hash with 128 bits of
 	  security against collision attacks.

           This code also includes SHA-224, a 224 bit hash with 112 bits
           of security against collision attacks.

 config CRYPTO_SHA512
 	tristate "SHA384 and SHA512 digest algorithms"
 	select CRYPTO_ALGAPI
 	help
 	  SHA512 secure hash standard (DFIPS 180-2).

 	  This version of SHA implements a 512 bit hash with 256 bits of
 	  security against collision attacks.

 	  This code also includes SHA-384, a 384 bit hash with 192 bits
 	  of security against collision attacks.

 config CRYPTO_WP512
 	tristate "Whirlpool digest algorithms"
 	select CRYPTO_ALGAPI
 	help
 	  Whirlpool hash algorithm 512, 384 and 256-bit hashes

 	  Whirlpool-512 is part of the NESSIE cryptographic primitives.
 	  Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard

 	  See also:
 	  <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>

 config CRYPTO_TGR192
 	tristate "Tiger digest algorithms"
 	select CRYPTO_ALGAPI
 	help
 	  Tiger hash algorithm 192, 160 and 128-bit hashes

 	  Tiger is a hash function optimized for 64-bit processors while
 	  still having decent performance on 32-bit processors.
 	  Tiger was developed by Ross Anderson and Eli Biham.

 	  See also:
 	  <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.

 config CRYPTO_GF128MUL
 	tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	help
 	  Efficient table driven implementation of multiplications in the
 	  field GF(2^128).  This is needed by some cypher modes. This
 	  option will be selected automatically if you select such a
 	  cipher mode.  Only select this option by hand if you expect to load
 	  an external module that requires these functions.

 config CRYPTO_ECB
 	tristate "ECB support"
 	select CRYPTO_BLKCIPHER
 	select CRYPTO_MANAGER
 	help
 	  ECB: Electronic CodeBook mode
 	  This is the simplest block cipher algorithm.  It simply encrypts
 	  the input block by block.

 config CRYPTO_CBC
 	tristate "CBC support"
 	select CRYPTO_BLKCIPHER
 	select CRYPTO_MANAGER
 	help
 	  CBC: Cipher Block Chaining mode
 	  This block cipher algorithm is required for IPSec.

 config CRYPTO_PCBC
 	tristate "PCBC support"
 	select CRYPTO_BLKCIPHER
 	select CRYPTO_MANAGER
 	help
 	  PCBC: Propagating Cipher Block Chaining mode
 	  This block cipher algorithm is required for RxRPC.

 config CRYPTO_LRW
 	tristate "LRW support (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	select CRYPTO_BLKCIPHER
 	select CRYPTO_MANAGER
 	select CRYPTO_GF128MUL
 	help
 	  LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
 	  narrow block cipher mode for dm-crypt.  Use it with cipher
 	  specification string aes-lrw-benbi, the key must be 256, 320 or 384.
 	  The first 128, 192 or 256 bits in the key are used for AES and the
 	  rest is used to tie each cipher block to its logical position.

 config CRYPTO_XTS
 	tristate "XTS support (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	select CRYPTO_BLKCIPHER
 	select CRYPTO_MANAGER
 	select CRYPTO_GF128MUL
 	help
 	  XTS: IEEE1619/D16 narrow block cipher use with aes-xts-plain,
 	  key size 256, 384 or 512 bits. This implementation currently
 	  can't handle a sectorsize which is not a multiple of 16 bytes.

 config CRYPTO_CTR
 	tristate "CTR support"
 	select CRYPTO_BLKCIPHER
 	select CRYPTO_SEQIV
 	select CRYPTO_MANAGER
 	help
 	  CTR: Counter mode
 	  This block cipher algorithm is required for IPSec.

 config CRYPTO_CTS
 	tristate "CTS support"
 	select CRYPTO_BLKCIPHER
 	help
 	  CTS: Cipher Text Stealing
 	  This is the Cipher Text Stealing mode as described by
 	  Section 8 of rfc2040 and referenced by rfc3962.
 	  (rfc3962 includes errata information in its Appendix A)
 	  This mode is required for Kerberos gss mechanism support
 	  for AES encryption.

 config CRYPTO_GCM
 	tristate "GCM/GMAC support"
 	select CRYPTO_CTR
 	select CRYPTO_AEAD
 	select CRYPTO_GF128MUL
 	help
 	  Support for Galois/Counter Mode (GCM) and Galois Message
 	  Authentication Code (GMAC). Required for IPSec.

 config CRYPTO_CCM
 	tristate "CCM support"
 	select CRYPTO_CTR
 	select CRYPTO_AEAD
 	help
 	  Support for Counter with CBC MAC. Required for IPsec.

 config CRYPTO_CRYPTD
 	tristate "Software async crypto daemon"
 	select CRYPTO_BLKCIPHER
 	select CRYPTO_MANAGER
 	help
 	  This is a generic software asynchronous crypto daemon that
 	  converts an arbitrary synchronous software crypto algorithm
 	  into an asynchronous algorithm that executes in a kernel thread.

 config CRYPTO_DES
 	tristate "DES and Triple DES EDE cipher algorithms"
 	select CRYPTO_ALGAPI
 	help
 	  DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).

 config CRYPTO_FCRYPT
 	tristate "FCrypt cipher algorithm"
 	select CRYPTO_ALGAPI
 	select CRYPTO_BLKCIPHER
 	help
 	  FCrypt algorithm used by RxRPC.

 config CRYPTO_BLOWFISH
 	tristate "Blowfish cipher algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  Blowfish cipher algorithm, by Bruce Schneier.

 	  This is a variable key length cipher which can use keys from 32
 	  bits to 448 bits in length.  It's fast, simple and specifically
 	  designed for use on "large microprocessors".

 	  See also:
 	  <http://www.schneier.com/blowfish.html>

 config CRYPTO_TWOFISH
 	tristate "Twofish cipher algorithm"
 	select CRYPTO_ALGAPI
 	select CRYPTO_TWOFISH_COMMON
 	help
 	  Twofish cipher algorithm.

 	  Twofish was submitted as an AES (Advanced Encryption Standard)
 	  candidate cipher by researchers at CounterPane Systems.  It is a
 	  16 round block cipher supporting key sizes of 128, 192, and 256
 	  bits.

 	  See also:
 	  <http://www.schneier.com/twofish.html>

 config CRYPTO_TWOFISH_COMMON
 	tristate
 	help
 	  Common parts of the Twofish cipher algorithm shared by the
 	  generic c and the assembler implementations.

 config CRYPTO_TWOFISH_586
 	tristate "Twofish cipher algorithms (i586)"
 	depends on (X86 || UML_X86) && !64BIT
 	select CRYPTO_ALGAPI
 	select CRYPTO_TWOFISH_COMMON
 	help
 	  Twofish cipher algorithm.

 	  Twofish was submitted as an AES (Advanced Encryption Standard)
 	  candidate cipher by researchers at CounterPane Systems.  It is a
 	  16 round block cipher supporting key sizes of 128, 192, and 256
 	  bits.

 	  See also:
 	  <http://www.schneier.com/twofish.html>

 config CRYPTO_TWOFISH_X86_64
 	tristate "Twofish cipher algorithm (x86_64)"
 	depends on (X86 || UML_X86) && 64BIT
 	select CRYPTO_ALGAPI
 	select CRYPTO_TWOFISH_COMMON
 	help
 	  Twofish cipher algorithm (x86_64).

 	  Twofish was submitted as an AES (Advanced Encryption Standard)
 	  candidate cipher by researchers at CounterPane Systems.  It is a
 	  16 round block cipher supporting key sizes of 128, 192, and 256
 	  bits.

 	  See also:
 	  <http://www.schneier.com/twofish.html>

 config CRYPTO_SERPENT
 	tristate "Serpent cipher algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  Serpent cipher algorithm, by Anderson, Biham & Knudsen.

 	  Keys are allowed to be from 0 to 256 bits in length, in steps
 	  of 8 bits.  Also includes the 'Tnepres' algorithm, a reversed
 	  variant of Serpent for compatibility with old kerneli.org code.

 	  See also:
 	  <http://www.cl.cam.ac.uk/~rja14/serpent.html>

 config CRYPTO_AES
 	tristate "AES cipher algorithms"
 	select CRYPTO_ALGAPI
 	help
 	  AES cipher algorithms (FIPS-197). AES uses the Rijndael
 	  algorithm.

 	  Rijndael appears to be consistently a very good performer in
 	  both hardware and software across a wide range of computing
 	  environments regardless of its use in feedback or non-feedback
 	  modes. Its key setup time is excellent, and its key agility is
 	  good. Rijndael's very low memory requirements make it very well
 	  suited for restricted-space environments, in which it also
 	  demonstrates excellent performance. Rijndael's operations are
 	  among the easiest to defend against power and timing attacks.

 	  The AES specifies three key sizes: 128, 192 and 256 bits

 	  See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.

 config CRYPTO_AES_586
 	tristate "AES cipher algorithms (i586)"
 	depends on (X86 || UML_X86) && !64BIT
 	select CRYPTO_ALGAPI
 	select CRYPTO_AES
 	help
 	  AES cipher algorithms (FIPS-197). AES uses the Rijndael
 	  algorithm.

 	  Rijndael appears to be consistently a very good performer in
 	  both hardware and software across a wide range of computing
 	  environments regardless of its use in feedback or non-feedback
 	  modes. Its key setup time is excellent, and its key agility is
 	  good. Rijndael's very low memory requirements make it very well
 	  suited for restricted-space environments, in which it also
 	  demonstrates excellent performance. Rijndael's operations are
 	  among the easiest to defend against power and timing attacks.

 	  The AES specifies three key sizes: 128, 192 and 256 bits

 	  See <http://csrc.nist.gov/encryption/aes/> for more information.

 config CRYPTO_AES_X86_64
 	tristate "AES cipher algorithms (x86_64)"
 	depends on (X86 || UML_X86) && 64BIT
 	select CRYPTO_ALGAPI
 	select CRYPTO_AES
 	help
 	  AES cipher algorithms (FIPS-197). AES uses the Rijndael
 	  algorithm.

 	  Rijndael appears to be consistently a very good performer in
 	  both hardware and software across a wide range of computing
 	  environments regardless of its use in feedback or non-feedback
 	  modes. Its key setup time is excellent, and its key agility is
 	  good. Rijndael's very low memory requirements make it very well
 	  suited for restricted-space environments, in which it also
 	  demonstrates excellent performance. Rijndael's operations are
 	  among the easiest to defend against power and timing attacks.

 	  The AES specifies three key sizes: 128, 192 and 256 bits

 	  See <http://csrc.nist.gov/encryption/aes/> for more information.

 config CRYPTO_CAST5
 	tristate "CAST5 (CAST-128) cipher algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  The CAST5 encryption algorithm (synonymous with CAST-128) is
 	  described in RFC2144.

 config CRYPTO_CAST6
 	tristate "CAST6 (CAST-256) cipher algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  The CAST6 encryption algorithm (synonymous with CAST-256) is
 	  described in RFC2612.

 config CRYPTO_TEA
 	tristate "TEA, XTEA and XETA cipher algorithms"
 	select CRYPTO_ALGAPI
 	help
 	  TEA cipher algorithm.

 	  Tiny Encryption Algorithm is a simple cipher that uses
 	  many rounds for security.  It is very fast and uses
 	  little memory.

 	  Xtendend Tiny Encryption Algorithm is a modification to
 	  the TEA algorithm to address a potential key weakness
 	  in the TEA algorithm.

 	  Xtendend Encryption Tiny Algorithm is a mis-implementation
 	  of the XTEA algorithm for compatibility purposes.

 config CRYPTO_ARC4
 	tristate "ARC4 cipher algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  ARC4 cipher algorithm.

 	  ARC4 is a stream cipher using keys ranging from 8 bits to 2048
 	  bits in length.  This algorithm is required for driver-based
 	  WEP, but it should not be for other purposes because of the
 	  weakness of the algorithm.

 config CRYPTO_KHAZAD
 	tristate "Khazad cipher algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  Khazad cipher algorithm.

 	  Khazad was a finalist in the initial NESSIE competition.  It is
 	  an algorithm optimized for 64-bit processors with good performance
 	  on 32-bit processors.  Khazad uses an 128 bit key size.

 	  See also:
 	  <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>

 config CRYPTO_ANUBIS
 	tristate "Anubis cipher algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  Anubis cipher algorithm.

 	  Anubis is a variable key length cipher which can use keys from
 	  128 bits to 320 bits in length.  It was evaluated as a entrant
 	  in the NESSIE competition.

 	  See also:
 	  <https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
 	  <http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>

 config CRYPTO_SEED
 	tristate "SEED cipher algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  SEED cipher algorithm (RFC4269).

 	  SEED is a 128-bit symmetric key block cipher that has been
 	  developed by KISA (Korea Information Security Agency) as a
 	  national standard encryption algorithm of the Republic of Korea.
 	  It is a 16 round block cipher with the key size of 128 bit.

 	  See also:
 	  <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>

 config CRYPTO_SALSA20
 	tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	select CRYPTO_BLKCIPHER
 	help
 	  Salsa20 stream cipher algorithm.

 	  Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
 	  Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>

 	  The Salsa20 stream cipher algorithm is designed by Daniel J.
 	  Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>

 config CRYPTO_SALSA20_586
 	tristate "Salsa20 stream cipher algorithm (i586) (EXPERIMENTAL)"
 	depends on (X86 || UML_X86) && !64BIT
 	depends on EXPERIMENTAL
 	select CRYPTO_BLKCIPHER
 	help
 	  Salsa20 stream cipher algorithm.

 	  Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
 	  Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>

 	  The Salsa20 stream cipher algorithm is designed by Daniel J.
 	  Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>

 config CRYPTO_SALSA20_X86_64
 	tristate "Salsa20 stream cipher algorithm (x86_64) (EXPERIMENTAL)"
 	depends on (X86 || UML_X86) && 64BIT
 	depends on EXPERIMENTAL
 	select CRYPTO_BLKCIPHER
 	help
 	  Salsa20 stream cipher algorithm.

 	  Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
 	  Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>

 	  The Salsa20 stream cipher algorithm is designed by Daniel J.
 	  Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>

 config CRYPTO_DEFLATE
 	tristate "Deflate compression algorithm"
 	select CRYPTO_ALGAPI
 	select ZLIB_INFLATE
 	select ZLIB_DEFLATE
 	help
 	  This is the Deflate algorithm (RFC1951), specified for use in
 	  IPSec with the IPCOMP protocol (RFC3173, RFC2394).

 	  You will most probably want this if using IPSec.

 config CRYPTO_MICHAEL_MIC
 	tristate "Michael MIC keyed digest algorithm"
 	select CRYPTO_ALGAPI
 	help
 	  Michael MIC is used for message integrity protection in TKIP
 	  (IEEE 802.11i). This algorithm is required for TKIP, but it
 	  should not be used for other purposes because of the weakness
 	  of the algorithm.

 config CRYPTO_CRC32C
 	tristate "CRC32c CRC algorithm"
 	select CRYPTO_ALGAPI
 	select LIBCRC32C
 	help
 	  Castagnoli, et al Cyclic Redundancy-Check Algorithm.  Used
 	  by iSCSI for header and data digests and by others.
 	  See Castagnoli93.  This implementation uses lib/libcrc32c.
           Module will be crc32c.

 config CRYPTO_CAMELLIA
 	tristate "Camellia cipher algorithms"
 	depends on CRYPTO
 	select CRYPTO_ALGAPI
 	help
 	  Camellia cipher algorithms module.

 	  Camellia is a symmetric key block cipher developed jointly
 	  at NTT and Mitsubishi Electric Corporation.

 	  The Camellia specifies three key sizes: 128, 192 and 256 bits.

 	  See also:
 	  <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>

 config CRYPTO_TEST
 	tristate "Testing module"
 	depends on m
 	select CRYPTO_ALGAPI
 	select CRYPTO_AEAD
 	select CRYPTO_BLKCIPHER
 	help
 	  Quick & dirty crypto test module.

 config CRYPTO_AUTHENC
 	tristate "Authenc support"
 	select CRYPTO_AEAD
 	select CRYPTO_BLKCIPHER
 	select CRYPTO_MANAGER
 	select CRYPTO_HASH
 	help
 	  Authenc: Combined mode wrapper for IPsec.
 	  This is required for IPSec.

 config CRYPTO_LZO
 	tristate "LZO compression algorithm"
 	select CRYPTO_ALGAPI
 	select LZO_COMPRESS
 	select LZO_DECOMPRESS
 	help
 	  This is the LZO algorithm.

 source "drivers/crypto/Kconfig"

 endif	# if CRYPTO
	#
	# Generic algorithms support
	#
	config XOR_BLOCKS
	tristate

	#
	# async_tx api: hardware offloaded memory transfer/transform support
	#
	source "crypto/async_tx/Kconfig"

	#
	# Cryptographic API Configuration
	#
	menuconfig CRYPTO
	tristate "Cryptographic API"
	help
	This option provides the core Cryptographic API.

	if CRYPTO

	config CRYPTO_ALGAPI
	tristate
	help
	This option provides the API for cryptographic algorithms.

	config CRYPTO_AEAD
	tristate
	select CRYPTO_ALGAPI

	config CRYPTO_BLKCIPHER
	tristate
	select CRYPTO_ALGAPI

	config CRYPTO_SEQIV
	tristate "Sequence Number IV Generator"
	select CRYPTO_AEAD
	select CRYPTO_BLKCIPHER
	help
	This IV generator generates an IV based on a sequence number by
	xoring it with a salt. This algorithm is mainly useful for CTR
	and similar modes.

	config CRYPTO_HASH
	tristate
	select CRYPTO_ALGAPI

	config CRYPTO_MANAGER
	tristate "Cryptographic algorithm manager"
	select CRYPTO_ALGAPI
	help
	Create default cryptographic template instantiations such as
	cbc(aes).

	config CRYPTO_HMAC
	tristate "HMAC support"
	select CRYPTO_HASH
	select CRYPTO_MANAGER
	help
	HMAC: Keyed-Hashing for Message Authentication (RFC2104).
	This is required for IPSec.

	config CRYPTO_XCBC
	tristate "XCBC support"
	depends on EXPERIMENTAL
	select CRYPTO_HASH
	select CRYPTO_MANAGER
	help
	XCBC: Keyed-Hashing with encryption algorithm
	http://www.ietf.org/rfc/rfc3566.txt
	http://csrc.nist.gov/encryption/modes/proposedmodes/
	xcbc-mac/xcbc-mac-spec.pdf

	config CRYPTO_NULL
	tristate "Null algorithms"
	select CRYPTO_ALGAPI
	select CRYPTO_BLKCIPHER
	help
	These are 'Null' algorithms, used by IPsec, which do nothing.

	config CRYPTO_MD4
	tristate "MD4 digest algorithm"
	select CRYPTO_ALGAPI
	help
	MD4 message digest algorithm (RFC1320).

	config CRYPTO_MD5
	tristate "MD5 digest algorithm"
	select CRYPTO_ALGAPI
	help
	MD5 message digest algorithm (RFC1321).

	config CRYPTO_SHA1
	tristate "SHA1 digest algorithm"
	select CRYPTO_ALGAPI
	help
	SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).

	config CRYPTO_SHA256
	tristate "SHA224 and SHA256 digest algorithm"
	select CRYPTO_ALGAPI
	help
	SHA256 secure hash standard (DFIPS 180-2).

	This version of SHA implements a 256 bit hash with 128 bits of
	security against collision attacks.

	This code also includes SHA-224, a 224 bit hash with 112 bits
	of security against collision attacks.

	config CRYPTO_SHA512
	tristate "SHA384 and SHA512 digest algorithms"
	select CRYPTO_ALGAPI
	help
	SHA512 secure hash standard (DFIPS 180-2).

	This version of SHA implements a 512 bit hash with 256 bits of
	security against collision attacks.

	This code also includes SHA-384, a 384 bit hash with 192 bits
	of security against collision attacks.

	config CRYPTO_WP512
	tristate "Whirlpool digest algorithms"
	select CRYPTO_ALGAPI
	help
	Whirlpool hash algorithm 512, 384 and 256-bit hashes

	Whirlpool-512 is part of the NESSIE cryptographic primitives.
	Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard

	See also:
	<http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>

	config CRYPTO_TGR192
	tristate "Tiger digest algorithms"
	select CRYPTO_ALGAPI
	help
	Tiger hash algorithm 192, 160 and 128-bit hashes

	Tiger is a hash function optimized for 64-bit processors while
	still having decent performance on 32-bit processors.
	Tiger was developed by Ross Anderson and Eli Biham.

	See also:
	<http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.

	config CRYPTO_GF128MUL
	tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	help
	Efficient table driven implementation of multiplications in the
	field GF(2^128). This is needed by some cypher modes. This
	option will be selected automatically if you select such a
	cipher mode. Only select this option by hand if you expect to load
	an external module that requires these functions.

	config CRYPTO_ECB
	tristate "ECB support"
	select CRYPTO_BLKCIPHER
	select CRYPTO_MANAGER
	help
	ECB: Electronic CodeBook mode
	This is the simplest block cipher algorithm. It simply encrypts
	the input block by block.

	config CRYPTO_CBC
	tristate "CBC support"
	select CRYPTO_BLKCIPHER
	select CRYPTO_MANAGER
	help
	CBC: Cipher Block Chaining mode
	This block cipher algorithm is required for IPSec.

	config CRYPTO_PCBC
	tristate "PCBC support"
	select CRYPTO_BLKCIPHER
	select CRYPTO_MANAGER
	help
	PCBC: Propagating Cipher Block Chaining mode
	This block cipher algorithm is required for RxRPC.

	config CRYPTO_LRW
	tristate "LRW support (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	select CRYPTO_BLKCIPHER
	select CRYPTO_MANAGER
	select CRYPTO_GF128MUL
	help
	LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
	narrow block cipher mode for dm-crypt. Use it with cipher
	specification string aes-lrw-benbi, the key must be 256, 320 or 384.
	The first 128, 192 or 256 bits in the key are used for AES and the
	rest is used to tie each cipher block to its logical position.

	config CRYPTO_XTS
	tristate "XTS support (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	select CRYPTO_BLKCIPHER
	select CRYPTO_MANAGER
	select CRYPTO_GF128MUL
	help
	XTS: IEEE1619/D16 narrow block cipher use with aes-xts-plain,
	key size 256, 384 or 512 bits. This implementation currently
	can't handle a sectorsize which is not a multiple of 16 bytes.

	config CRYPTO_CTR
	tristate "CTR support"
	select CRYPTO_BLKCIPHER
	select CRYPTO_SEQIV
	select CRYPTO_MANAGER
	help
	CTR: Counter mode
	This block cipher algorithm is required for IPSec.

	config CRYPTO_CTS
	tristate "CTS support"
	select CRYPTO_BLKCIPHER
	help
	CTS: Cipher Text Stealing
	This is the Cipher Text Stealing mode as described by
	Section 8 of rfc2040 and referenced by rfc3962.
	(rfc3962 includes errata information in its Appendix A)
	This mode is required for Kerberos gss mechanism support
	for AES encryption.

	config CRYPTO_GCM
	tristate "GCM/GMAC support"
	select CRYPTO_CTR
	select CRYPTO_AEAD
	select CRYPTO_GF128MUL
	help
	Support for Galois/Counter Mode (GCM) and Galois Message
	Authentication Code (GMAC). Required for IPSec.

	config CRYPTO_CCM
	tristate "CCM support"
	select CRYPTO_CTR
	select CRYPTO_AEAD
	help
	Support for Counter with CBC MAC. Required for IPsec.

	config CRYPTO_CRYPTD
	tristate "Software async crypto daemon"
	select CRYPTO_BLKCIPHER
	select CRYPTO_MANAGER
	help
	This is a generic software asynchronous crypto daemon that
	converts an arbitrary synchronous software crypto algorithm
	into an asynchronous algorithm that executes in a kernel thread.

	config CRYPTO_DES
	tristate "DES and Triple DES EDE cipher algorithms"
	select CRYPTO_ALGAPI
	help
	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).

	config CRYPTO_FCRYPT
	tristate "FCrypt cipher algorithm"
	select CRYPTO_ALGAPI
	select CRYPTO_BLKCIPHER
	help
	FCrypt algorithm used by RxRPC.

	config CRYPTO_BLOWFISH
	tristate "Blowfish cipher algorithm"
	select CRYPTO_ALGAPI
	help
	Blowfish cipher algorithm, by Bruce Schneier.

	This is a variable key length cipher which can use keys from 32
	bits to 448 bits in length. It's fast, simple and specifically
	designed for use on "large microprocessors".

	See also:
	<http://www.schneier.com/blowfish.html>

	config CRYPTO_TWOFISH
	tristate "Twofish cipher algorithm"
	select CRYPTO_ALGAPI
	select CRYPTO_TWOFISH_COMMON
	help
	Twofish cipher algorithm.

	Twofish was submitted as an AES (Advanced Encryption Standard)
	candidate cipher by researchers at CounterPane Systems. It is a
	16 round block cipher supporting key sizes of 128, 192, and 256
	bits.

	See also:
	<http://www.schneier.com/twofish.html>

	config CRYPTO_TWOFISH_COMMON
	tristate
	help
	Common parts of the Twofish cipher algorithm shared by the
	generic c and the assembler implementations.

	config CRYPTO_TWOFISH_586
	tristate "Twofish cipher algorithms (i586)"
	depends on (X86 \|\| UML_X86) && !64BIT
	select CRYPTO_ALGAPI
	select CRYPTO_TWOFISH_COMMON
	help
	Twofish cipher algorithm.

	Twofish was submitted as an AES (Advanced Encryption Standard)
	candidate cipher by researchers at CounterPane Systems. It is a
	16 round block cipher supporting key sizes of 128, 192, and 256
	bits.

	See also:
	<http://www.schneier.com/twofish.html>

	config CRYPTO_TWOFISH_X86_64
	tristate "Twofish cipher algorithm (x86_64)"
	depends on (X86 \|\| UML_X86) && 64BIT
	select CRYPTO_ALGAPI
	select CRYPTO_TWOFISH_COMMON
	help
	Twofish cipher algorithm (x86_64).

	Twofish was submitted as an AES (Advanced Encryption Standard)
	candidate cipher by researchers at CounterPane Systems. It is a
	16 round block cipher supporting key sizes of 128, 192, and 256
	bits.

	See also:
	<http://www.schneier.com/twofish.html>

	config CRYPTO_SERPENT
	tristate "Serpent cipher algorithm"
	select CRYPTO_ALGAPI
	help
	Serpent cipher algorithm, by Anderson, Biham & Knudsen.

	Keys are allowed to be from 0 to 256 bits in length, in steps
	of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
	variant of Serpent for compatibility with old kerneli.org code.

	See also:
	<http://www.cl.cam.ac.uk/~rja14/serpent.html>

	config CRYPTO_AES
	tristate "AES cipher algorithms"
	select CRYPTO_ALGAPI
	help
	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	algorithm.

	Rijndael appears to be consistently a very good performer in
	both hardware and software across a wide range of computing
	environments regardless of its use in feedback or non-feedback
	modes. Its key setup time is excellent, and its key agility is
	good. Rijndael's very low memory requirements make it very well
	suited for restricted-space environments, in which it also
	demonstrates excellent performance. Rijndael's operations are
	among the easiest to defend against power and timing attacks.

	The AES specifies three key sizes: 128, 192 and 256 bits

	See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.

	config CRYPTO_AES_586
	tristate "AES cipher algorithms (i586)"
	depends on (X86 \|\| UML_X86) && !64BIT
	select CRYPTO_ALGAPI
	select CRYPTO_AES
	help
	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	algorithm.

	Rijndael appears to be consistently a very good performer in
	both hardware and software across a wide range of computing
	environments regardless of its use in feedback or non-feedback
	modes. Its key setup time is excellent, and its key agility is
	good. Rijndael's very low memory requirements make it very well
	suited for restricted-space environments, in which it also
	demonstrates excellent performance. Rijndael's operations are
	among the easiest to defend against power and timing attacks.

	The AES specifies three key sizes: 128, 192 and 256 bits

	See <http://csrc.nist.gov/encryption/aes/> for more information.

	config CRYPTO_AES_X86_64
	tristate "AES cipher algorithms (x86_64)"
	depends on (X86 \|\| UML_X86) && 64BIT
	select CRYPTO_ALGAPI
	select CRYPTO_AES
	help
	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	algorithm.

	Rijndael appears to be consistently a very good performer in
	both hardware and software across a wide range of computing
	environments regardless of its use in feedback or non-feedback
	modes. Its key setup time is excellent, and its key agility is
	good. Rijndael's very low memory requirements make it very well
	suited for restricted-space environments, in which it also
	demonstrates excellent performance. Rijndael's operations are
	among the easiest to defend against power and timing attacks.

	The AES specifies three key sizes: 128, 192 and 256 bits

	See <http://csrc.nist.gov/encryption/aes/> for more information.

	config CRYPTO_CAST5
	tristate "CAST5 (CAST-128) cipher algorithm"
	select CRYPTO_ALGAPI
	help
	The CAST5 encryption algorithm (synonymous with CAST-128) is
	described in RFC2144.

	config CRYPTO_CAST6
	tristate "CAST6 (CAST-256) cipher algorithm"
	select CRYPTO_ALGAPI
	help
	The CAST6 encryption algorithm (synonymous with CAST-256) is
	described in RFC2612.

	config CRYPTO_TEA
	tristate "TEA, XTEA and XETA cipher algorithms"
	select CRYPTO_ALGAPI
	help
	TEA cipher algorithm.

	Tiny Encryption Algorithm is a simple cipher that uses
	many rounds for security. It is very fast and uses
	little memory.

	Xtendend Tiny Encryption Algorithm is a modification to
	the TEA algorithm to address a potential key weakness
	in the TEA algorithm.

	Xtendend Encryption Tiny Algorithm is a mis-implementation
	of the XTEA algorithm for compatibility purposes.

	config CRYPTO_ARC4
	tristate "ARC4 cipher algorithm"
	select CRYPTO_ALGAPI
	help
	ARC4 cipher algorithm.

	ARC4 is a stream cipher using keys ranging from 8 bits to 2048
	bits in length. This algorithm is required for driver-based
	WEP, but it should not be for other purposes because of the
	weakness of the algorithm.

	config CRYPTO_KHAZAD
	tristate "Khazad cipher algorithm"
	select CRYPTO_ALGAPI
	help
	Khazad cipher algorithm.

	Khazad was a finalist in the initial NESSIE competition. It is
	an algorithm optimized for 64-bit processors with good performance
	on 32-bit processors. Khazad uses an 128 bit key size.

	See also:
	<http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>

	config CRYPTO_ANUBIS
	tristate "Anubis cipher algorithm"
	select CRYPTO_ALGAPI
	help
	Anubis cipher algorithm.

	Anubis is a variable key length cipher which can use keys from
	128 bits to 320 bits in length. It was evaluated as a entrant
	in the NESSIE competition.

	See also:
	<https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
	<http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>

	config CRYPTO_SEED
	tristate "SEED cipher algorithm"
	select CRYPTO_ALGAPI
	help
	SEED cipher algorithm (RFC4269).

	SEED is a 128-bit symmetric key block cipher that has been
	developed by KISA (Korea Information Security Agency) as a
	national standard encryption algorithm of the Republic of Korea.
	It is a 16 round block cipher with the key size of 128 bit.

	See also:
	<http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>

	config CRYPTO_SALSA20
	tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	select CRYPTO_BLKCIPHER
	help
	Salsa20 stream cipher algorithm.

	Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
	Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>

	The Salsa20 stream cipher algorithm is designed by Daniel J.
	Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>

	config CRYPTO_SALSA20_586
	tristate "Salsa20 stream cipher algorithm (i586) (EXPERIMENTAL)"
	depends on (X86 \|\| UML_X86) && !64BIT
	depends on EXPERIMENTAL
	select CRYPTO_BLKCIPHER
	help
	Salsa20 stream cipher algorithm.

	Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
	Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>

	The Salsa20 stream cipher algorithm is designed by Daniel J.
	Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>

	config CRYPTO_SALSA20_X86_64
	tristate "Salsa20 stream cipher algorithm (x86_64) (EXPERIMENTAL)"
	depends on (X86 \|\| UML_X86) && 64BIT
	depends on EXPERIMENTAL
	select CRYPTO_BLKCIPHER
	help
	Salsa20 stream cipher algorithm.

	Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
	Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>

	The Salsa20 stream cipher algorithm is designed by Daniel J.
	Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>

	config CRYPTO_DEFLATE
	tristate "Deflate compression algorithm"
	select CRYPTO_ALGAPI
	select ZLIB_INFLATE
	select ZLIB_DEFLATE
	help
	This is the Deflate algorithm (RFC1951), specified for use in
	IPSec with the IPCOMP protocol (RFC3173, RFC2394).

	You will most probably want this if using IPSec.

	config CRYPTO_MICHAEL_MIC
	tristate "Michael MIC keyed digest algorithm"
	select CRYPTO_ALGAPI
	help
	Michael MIC is used for message integrity protection in TKIP
	(IEEE 802.11i). This algorithm is required for TKIP, but it
	should not be used for other purposes because of the weakness
	of the algorithm.

	config CRYPTO_CRC32C
	tristate "CRC32c CRC algorithm"
	select CRYPTO_ALGAPI
	select LIBCRC32C
	help
	Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
	by iSCSI for header and data digests and by others.
	See Castagnoli93. This implementation uses lib/libcrc32c.
	Module will be crc32c.

	config CRYPTO_CAMELLIA
	tristate "Camellia cipher algorithms"
	depends on CRYPTO
	select CRYPTO_ALGAPI
	help
	Camellia cipher algorithms module.

	Camellia is a symmetric key block cipher developed jointly
	at NTT and Mitsubishi Electric Corporation.

	The Camellia specifies three key sizes: 128, 192 and 256 bits.

	See also:
	<https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>

	config CRYPTO_TEST
	tristate "Testing module"
	depends on m
	select CRYPTO_ALGAPI
	select CRYPTO_AEAD
	select CRYPTO_BLKCIPHER
	help
	Quick & dirty crypto test module.

	config CRYPTO_AUTHENC
	tristate "Authenc support"
	select CRYPTO_AEAD
	select CRYPTO_BLKCIPHER
	select CRYPTO_MANAGER
	select CRYPTO_HASH
	help
	Authenc: Combined mode wrapper for IPsec.
	This is required for IPSec.

	config CRYPTO_LZO
	tristate "LZO compression algorithm"
	select CRYPTO_ALGAPI
	select LZO_COMPRESS
	select LZO_DECOMPRESS
	help
	This is the LZO algorithm.

	source "drivers/crypto/Kconfig"

	endif # if CRYPTO