[net-next-2.6.git] / crypto / Kconfig

#
# Cryptographic API Configuration
#

menu "Cryptographic options"

config CRYPTO
	bool "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_BLKCIPHER
	tristate
	select CRYPTO_ALGAPI

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
	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 "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.

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
	default m
	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
	default m
	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
	default m
	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_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 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
	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
	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_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
	help
	  Quick & dirty crypto test module.

source "drivers/crypto/Kconfig"

endif	# if CRYPTO

endmenu
Commit	Line	Data
1da177e4 LT	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
cce9e06d HX	12	if CRYPTO
	13
	14	config CRYPTO_ALGAPI
	15	tristate
	16	help
	17	This option provides the API for cryptographic algorithms.
	18
5cde0af2 HX	19	config CRYPTO_BLKCIPHER
	20	tristate
	21	select CRYPTO_ALGAPI
	22
055bcee3 HX	23	config CRYPTO_HASH
	24	tristate
	25	select CRYPTO_ALGAPI
	26
2b8c19db HX	27	config CRYPTO_MANAGER
	28	tristate "Cryptographic algorithm manager"
	29	select CRYPTO_ALGAPI
2b8c19db HX	30	help
	31	Create default cryptographic template instantiations such as
	32	cbc(aes).
	33
1da177e4	34	config CRYPTO_HMAC
8425165d	35	tristate "HMAC support"
0796ae06	36	select CRYPTO_HASH
43518407	37	select CRYPTO_MANAGER
1da177e4 LT	38	help
	39	HMAC: Keyed-Hashing for Message Authentication (RFC2104).
	40	This is required for IPSec.
	41
333b0d7e KM	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
1da177e4 LT	53	config CRYPTO_NULL
1da177e4 LT	54	tristate "Null algorithms"
cce9e06d	55	select CRYPTO_ALGAPI
1da177e4 LT	56	help
	57	These are 'Null' algorithms, used by IPsec, which do nothing.
	58
	59	config CRYPTO_MD4
	60	tristate "MD4 digest algorithm"
cce9e06d	61	select CRYPTO_ALGAPI
1da177e4 LT	62	help
	63	MD4 message digest algorithm (RFC1320).
	64
	65	config CRYPTO_MD5
	66	tristate "MD5 digest algorithm"
cce9e06d	67	select CRYPTO_ALGAPI
1da177e4 LT	68	help
	69	MD5 message digest algorithm (RFC1321).
	70
	71	config CRYPTO_SHA1
	72	tristate "SHA1 digest algorithm"
cce9e06d	73	select CRYPTO_ALGAPI
1da177e4 LT	74	help
	75	SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
	76
1da177e4 LT	77	config CRYPTO_SHA256
1da177e4 LT	78	tristate "SHA256 digest algorithm"
cce9e06d	79	select CRYPTO_ALGAPI
1da177e4 LT	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"
cce9e06d	88	select CRYPTO_ALGAPI
1da177e4 LT	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"
cce9e06d	100	select CRYPTO_ALGAPI
1da177e4 LT	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"
cce9e06d	112	select CRYPTO_ALGAPI
1da177e4 LT	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
c494e070 RS	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
db131ef9 HX	133	config CRYPTO_ECB
	134	tristate "ECB support"
	135	select CRYPTO_BLKCIPHER
43518407	136	select CRYPTO_MANAGER
db131ef9 HX	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
43518407	146	select CRYPTO_MANAGER
db131ef9 HX	147	default m
	148	help
	149	CBC: Cipher Block Chaining mode
	150	This block cipher algorithm is required for IPSec.
	151
91652be5 DH	152	config CRYPTO_PCBC
	153	tristate "PCBC support"
	154	select CRYPTO_BLKCIPHER
	155	select CRYPTO_MANAGER
	156	default m
	157	help
	158	PCBC: Propagating Cipher Block Chaining mode
	159	This block cipher algorithm is required for RxRPC.
	160
64470f1b RS	161	config CRYPTO_LRW
	162	tristate "LRW support (EXPERIMENTAL)"
	163	depends on EXPERIMENTAL
	164	select CRYPTO_BLKCIPHER
	165	select CRYPTO_MANAGER
	166	select CRYPTO_GF128MUL
	167	help
	168	LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
	169	narrow block cipher mode for dm-crypt. Use it with cipher
	170	specification string aes-lrw-benbi, the key must be 256, 320 or 384.
	171	The first 128, 192 or 256 bits in the key are used for AES and the
	172	rest is used to tie each cipher block to its logical position.
	173
1da177e4 LT	174	config CRYPTO_DES
1da177e4 LT	175	tristate "DES and Triple DES EDE cipher algorithms"
cce9e06d	176	select CRYPTO_ALGAPI
1da177e4 LT	177	help
	178	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	179
90831639 DH	180	config CRYPTO_FCRYPT
	181	tristate "FCrypt cipher algorithm"
	182	select CRYPTO_ALGAPI
	183	select CRYPTO_BLKCIPHER
	184	help
	185	FCrypt algorithm used by RxRPC.
	186
1da177e4 LT	187	config CRYPTO_BLOWFISH
1da177e4 LT	188	tristate "Blowfish cipher algorithm"
cce9e06d	189	select CRYPTO_ALGAPI
1da177e4 LT	190	help
	191	Blowfish cipher algorithm, by Bruce Schneier.
	192
	193	This is a variable key length cipher which can use keys from 32
	194	bits to 448 bits in length. It's fast, simple and specifically
	195	designed for use on "large microprocessors".
	196
	197	See also:
	198	<http://www.schneier.com/blowfish.html>
	199
	200	config CRYPTO_TWOFISH
	201	tristate "Twofish cipher algorithm"
cce9e06d	202	select CRYPTO_ALGAPI
2729bb42	203	select CRYPTO_TWOFISH_COMMON
1da177e4 LT	204	help
	205	Twofish cipher algorithm.
	206
	207	Twofish was submitted as an AES (Advanced Encryption Standard)
	208	candidate cipher by researchers at CounterPane Systems. It is a
	209	16 round block cipher supporting key sizes of 128, 192, and 256
	210	bits.
	211
	212	See also:
	213	<http://www.schneier.com/twofish.html>
	214
2729bb42 JF	215	config CRYPTO_TWOFISH_COMMON
2729bb42 JF	216	tristate
2729bb42 JF	217	help
	218	Common parts of the Twofish cipher algorithm shared by the
	219	generic c and the assembler implementations.
	220
b9f535ff JF	221	config CRYPTO_TWOFISH_586
b9f535ff JF	222	tristate "Twofish cipher algorithms (i586)"
cce9e06d HX	223	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	224	select CRYPTO_ALGAPI
b9f535ff JF	225	select CRYPTO_TWOFISH_COMMON
	226	help
	227	Twofish cipher algorithm.
	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
eaf44088 JF	237	config CRYPTO_TWOFISH_X86_64
eaf44088 JF	238	tristate "Twofish cipher algorithm (x86_64)"
cce9e06d HX	239	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	240	select CRYPTO_ALGAPI
eaf44088 JF	241	select CRYPTO_TWOFISH_COMMON
	242	help
	243	Twofish cipher algorithm (x86_64).
	244
	245	Twofish was submitted as an AES (Advanced Encryption Standard)
	246	candidate cipher by researchers at CounterPane Systems. It is a
	247	16 round block cipher supporting key sizes of 128, 192, and 256
	248	bits.
	249
	250	See also:
	251	<http://www.schneier.com/twofish.html>
	252
1da177e4 LT	253	config CRYPTO_SERPENT
1da177e4 LT	254	tristate "Serpent cipher algorithm"
cce9e06d	255	select CRYPTO_ALGAPI
1da177e4 LT	256	help
	257	Serpent cipher algorithm, by Anderson, Biham & Knudsen.
	258
	259	Keys are allowed to be from 0 to 256 bits in length, in steps
	260	of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
	261	variant of Serpent for compatibility with old kerneli code.
	262
	263	See also:
	264	<http://www.cl.cam.ac.uk/~rja14/serpent.html>
	265
	266	config CRYPTO_AES
	267	tristate "AES cipher algorithms"
cce9e06d	268	select CRYPTO_ALGAPI
1da177e4 LT	269	help
	270	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	271	algorithm.
	272
	273	Rijndael appears to be consistently a very good performer in
	274	both hardware and software across a wide range of computing
	275	environments regardless of its use in feedback or non-feedback
	276	modes. Its key setup time is excellent, and its key agility is
	277	good. Rijndael's very low memory requirements make it very well
	278	suited for restricted-space environments, in which it also
	279	demonstrates excellent performance. Rijndael's operations are
	280	among the easiest to defend against power and timing attacks.
	281
	282	The AES specifies three key sizes: 128, 192 and 256 bits
	283
	284	See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
	285
	286	config CRYPTO_AES_586
	287	tristate "AES cipher algorithms (i586)"
cce9e06d HX	288	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	289	select CRYPTO_ALGAPI
1da177e4 LT	290	help
	291	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	292	algorithm.
	293
	294	Rijndael appears to be consistently a very good performer in
	295	both hardware and software across a wide range of computing
	296	environments regardless of its use in feedback or non-feedback
	297	modes. Its key setup time is excellent, and its key agility is
	298	good. Rijndael's very low memory requirements make it very well
	299	suited for restricted-space environments, in which it also
	300	demonstrates excellent performance. Rijndael's operations are
	301	among the easiest to defend against power and timing attacks.
	302
	303	The AES specifies three key sizes: 128, 192 and 256 bits
a2a892a2 AS	304
	305	See <http://csrc.nist.gov/encryption/aes/> for more information.
	306
	307	config CRYPTO_AES_X86_64
	308	tristate "AES cipher algorithms (x86_64)"
cce9e06d HX	309	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	310	select CRYPTO_ALGAPI
a2a892a2 AS	311	help
	312	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	313	algorithm.
	314
	315	Rijndael appears to be consistently a very good performer in
	316	both hardware and software across a wide range of computing
	317	environments regardless of its use in feedback or non-feedback
	318	modes. Its key setup time is excellent, and its key agility is
	319	good. Rijndael's very low memory requirements make it very well
	320	suited for restricted-space environments, in which it also
	321	demonstrates excellent performance. Rijndael's operations are
	322	among the easiest to defend against power and timing attacks.
	323
	324	The AES specifies three key sizes: 128, 192 and 256 bits
1da177e4 LT	325
	326	See <http://csrc.nist.gov/encryption/aes/> for more information.
	327
	328	config CRYPTO_CAST5
	329	tristate "CAST5 (CAST-128) cipher algorithm"
cce9e06d	330	select CRYPTO_ALGAPI
1da177e4 LT	331	help
	332	The CAST5 encryption algorithm (synonymous with CAST-128) is
	333	described in RFC2144.
	334
	335	config CRYPTO_CAST6
	336	tristate "CAST6 (CAST-256) cipher algorithm"
cce9e06d	337	select CRYPTO_ALGAPI
1da177e4 LT	338	help
	339	The CAST6 encryption algorithm (synonymous with CAST-256) is
	340	described in RFC2612.
	341
	342	config CRYPTO_TEA
fb4f10ed	343	tristate "TEA, XTEA and XETA cipher algorithms"
cce9e06d	344	select CRYPTO_ALGAPI
1da177e4 LT	345	help
	346	TEA cipher algorithm.
	347
	348	Tiny Encryption Algorithm is a simple cipher that uses
	349	many rounds for security. It is very fast and uses
	350	little memory.
	351
	352	Xtendend Tiny Encryption Algorithm is a modification to
	353	the TEA algorithm to address a potential key weakness
	354	in the TEA algorithm.
	355
fb4f10ed AG	356	Xtendend Encryption Tiny Algorithm is a mis-implementation
	357	of the XTEA algorithm for compatibility purposes.
	358
1da177e4 LT	359	config CRYPTO_ARC4
1da177e4 LT	360	tristate "ARC4 cipher algorithm"
cce9e06d	361	select CRYPTO_ALGAPI
1da177e4 LT	362	help
	363	ARC4 cipher algorithm.
	364
	365	ARC4 is a stream cipher using keys ranging from 8 bits to 2048
	366	bits in length. This algorithm is required for driver-based
	367	WEP, but it should not be for other purposes because of the
	368	weakness of the algorithm.
	369
	370	config CRYPTO_KHAZAD
	371	tristate "Khazad cipher algorithm"
cce9e06d	372	select CRYPTO_ALGAPI
1da177e4 LT	373	help
	374	Khazad cipher algorithm.
	375
	376	Khazad was a finalist in the initial NESSIE competition. It is
	377	an algorithm optimized for 64-bit processors with good performance
	378	on 32-bit processors. Khazad uses an 128 bit key size.
	379
	380	See also:
	381	<http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
	382
	383	config CRYPTO_ANUBIS
	384	tristate "Anubis cipher algorithm"
cce9e06d	385	select CRYPTO_ALGAPI
1da177e4 LT	386	help
	387	Anubis cipher algorithm.
	388
	389	Anubis is a variable key length cipher which can use keys from
	390	128 bits to 320 bits in length. It was evaluated as a entrant
	391	in the NESSIE competition.
	392
	393	See also:
	394	<https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
	395	<http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
	396
	397
	398	config CRYPTO_DEFLATE
	399	tristate "Deflate compression algorithm"
cce9e06d	400	select CRYPTO_ALGAPI
1da177e4 LT	401	select ZLIB_INFLATE
	402	select ZLIB_DEFLATE
	403	help
	404	This is the Deflate algorithm (RFC1951), specified for use in
	405	IPSec with the IPCOMP protocol (RFC3173, RFC2394).
	406
	407	You will most probably want this if using IPSec.
	408
	409	config CRYPTO_MICHAEL_MIC
	410	tristate "Michael MIC keyed digest algorithm"
cce9e06d	411	select CRYPTO_ALGAPI
1da177e4 LT	412	help
	413	Michael MIC is used for message integrity protection in TKIP
	414	(IEEE 802.11i). This algorithm is required for TKIP, but it
	415	should not be used for other purposes because of the weakness
	416	of the algorithm.
	417
	418	config CRYPTO_CRC32C
	419	tristate "CRC32c CRC algorithm"
cce9e06d	420	select CRYPTO_ALGAPI
1da177e4 LT	421	select LIBCRC32C
	422	help
	423	Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
	424	by iSCSI for header and data digests and by others.
	425	See Castagnoli93. This implementation uses lib/libcrc32c.
	426	Module will be crc32c.
	427
04ac7db3 NT	428	config CRYPTO_CAMELLIA
	429	tristate "Camellia cipher algorithms"
	430	depends on CRYPTO
	431	select CRYPTO_ALGAPI
	432	help
	433	Camellia cipher algorithms module.
	434
	435	Camellia is a symmetric key block cipher developed jointly
	436	at NTT and Mitsubishi Electric Corporation.
	437
	438	The Camellia specifies three key sizes: 128, 192 and 256 bits.
	439
	440	See also:
	441	<https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>
	442
1da177e4 LT	443	config CRYPTO_TEST
1da177e4 LT	444	tristate "Testing module"
cce9e06d HX	445	depends on m
cce9e06d HX	446	select CRYPTO_ALGAPI
1da177e4 LT	447	help
	448	Quick & dirty crypto test module.
	449
	450	source "drivers/crypto/Kconfig"
1da177e4	451
cce9e06d HX	452	endif # if CRYPTO
	453
	454	endmenu