[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_SHA1_S390
	tristate "SHA1 digest algorithm (s390)"
	depends on S390
	select CRYPTO_ALGAPI
	help
	  This is the s390 hardware accelerated implementation of the
	  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_SHA256_S390
	tristate "SHA256 digest algorithm (s390)"
	depends on S390
	select CRYPTO_ALGAPI
	help
	  This is the s390 hardware accelerated implementation of the
	  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_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_DES_S390
	tristate "DES and Triple DES cipher algorithms (s390)"
	depends on S390
	select CRYPTO_ALGAPI
	select CRYPTO_BLKCIPHER
	help
	  DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).

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_AES_S390
	tristate "AES cipher algorithms (s390)"
	depends on S390
	select CRYPTO_ALGAPI
	select CRYPTO_BLKCIPHER
	help
	  This is the s390 hardware accelerated implementation of the
	  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.

	  On s390 the System z9-109 currently only supports the key size
	  of 128 bit.

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_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
c1e26e1e JG	77	config CRYPTO_SHA1_S390
c1e26e1e JG	78	tristate "SHA1 digest algorithm (s390)"
cce9e06d HX	79	depends on S390
cce9e06d HX	80	select CRYPTO_ALGAPI
1da177e4	81	help
0a497c17	82	This is the s390 hardware accelerated implementation of the
1da177e4 LT	83	SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
	84
	85	config CRYPTO_SHA256
	86	tristate "SHA256 digest algorithm"
cce9e06d	87	select CRYPTO_ALGAPI
1da177e4 LT	88	help
	89	SHA256 secure hash standard (DFIPS 180-2).
	90
	91	This version of SHA implements a 256 bit hash with 128 bits of
	92	security against collision attacks.
	93
0a497c17 JG	94	config CRYPTO_SHA256_S390
0a497c17 JG	95	tristate "SHA256 digest algorithm (s390)"
cce9e06d HX	96	depends on S390
cce9e06d HX	97	select CRYPTO_ALGAPI
0a497c17 JG	98	help
	99	This is the s390 hardware accelerated implementation of the
	100	SHA256 secure hash standard (DFIPS 180-2).
	101
	102	This version of SHA implements a 256 bit hash with 128 bits of
	103	security against collision attacks.
	104
1da177e4 LT	105	config CRYPTO_SHA512
1da177e4 LT	106	tristate "SHA384 and SHA512 digest algorithms"
cce9e06d	107	select CRYPTO_ALGAPI
1da177e4 LT	108	help
	109	SHA512 secure hash standard (DFIPS 180-2).
	110
	111	This version of SHA implements a 512 bit hash with 256 bits of
	112	security against collision attacks.
	113
	114	This code also includes SHA-384, a 384 bit hash with 192 bits
	115	of security against collision attacks.
	116
	117	config CRYPTO_WP512
	118	tristate "Whirlpool digest algorithms"
cce9e06d	119	select CRYPTO_ALGAPI
1da177e4 LT	120	help
	121	Whirlpool hash algorithm 512, 384 and 256-bit hashes
	122
	123	Whirlpool-512 is part of the NESSIE cryptographic primitives.
	124	Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
	125
	126	See also:
	127	<http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
	128
	129	config CRYPTO_TGR192
	130	tristate "Tiger digest algorithms"
cce9e06d	131	select CRYPTO_ALGAPI
1da177e4 LT	132	help
	133	Tiger hash algorithm 192, 160 and 128-bit hashes
	134
	135	Tiger is a hash function optimized for 64-bit processors while
	136	still having decent performance on 32-bit processors.
	137	Tiger was developed by Ross Anderson and Eli Biham.
	138
	139	See also:
	140	<http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
	141
c494e070 RS	142	config CRYPTO_GF128MUL
	143	tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
	144	depends on EXPERIMENTAL
	145	help
	146	Efficient table driven implementation of multiplications in the
	147	field GF(2^128). This is needed by some cypher modes. This
	148	option will be selected automatically if you select such a
	149	cipher mode. Only select this option by hand if you expect to load
	150	an external module that requires these functions.
	151
db131ef9 HX	152	config CRYPTO_ECB
	153	tristate "ECB support"
	154	select CRYPTO_BLKCIPHER
43518407	155	select CRYPTO_MANAGER
db131ef9 HX	156	default m
	157	help
	158	ECB: Electronic CodeBook mode
	159	This is the simplest block cipher algorithm. It simply encrypts
	160	the input block by block.
	161
	162	config CRYPTO_CBC
	163	tristate "CBC support"
	164	select CRYPTO_BLKCIPHER
43518407	165	select CRYPTO_MANAGER
db131ef9 HX	166	default m
	167	help
	168	CBC: Cipher Block Chaining mode
	169	This block cipher algorithm is required for IPSec.
	170
64470f1b RS	171	config CRYPTO_LRW
	172	tristate "LRW support (EXPERIMENTAL)"
	173	depends on EXPERIMENTAL
	174	select CRYPTO_BLKCIPHER
	175	select CRYPTO_MANAGER
	176	select CRYPTO_GF128MUL
	177	help
	178	LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
	179	narrow block cipher mode for dm-crypt. Use it with cipher
	180	specification string aes-lrw-benbi, the key must be 256, 320 or 384.
	181	The first 128, 192 or 256 bits in the key are used for AES and the
	182	rest is used to tie each cipher block to its logical position.
	183
1da177e4 LT	184	config CRYPTO_DES
1da177e4 LT	185	tristate "DES and Triple DES EDE cipher algorithms"
cce9e06d	186	select CRYPTO_ALGAPI
1da177e4 LT	187	help
	188	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	189
c1e26e1e JG	190	config CRYPTO_DES_S390
c1e26e1e JG	191	tristate "DES and Triple DES cipher algorithms (s390)"
cce9e06d HX	192	depends on S390
cce9e06d HX	193	select CRYPTO_ALGAPI
a9e62fad	194	select CRYPTO_BLKCIPHER
1da177e4 LT	195	help
	196	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	197
	198	config CRYPTO_BLOWFISH
	199	tristate "Blowfish cipher algorithm"
cce9e06d	200	select CRYPTO_ALGAPI
1da177e4 LT	201	help
	202	Blowfish cipher algorithm, by Bruce Schneier.
	203
	204	This is a variable key length cipher which can use keys from 32
	205	bits to 448 bits in length. It's fast, simple and specifically
	206	designed for use on "large microprocessors".
	207
	208	See also:
	209	<http://www.schneier.com/blowfish.html>
	210
	211	config CRYPTO_TWOFISH
	212	tristate "Twofish cipher algorithm"
cce9e06d	213	select CRYPTO_ALGAPI
2729bb42	214	select CRYPTO_TWOFISH_COMMON
1da177e4 LT	215	help
	216	Twofish cipher algorithm.
	217
	218	Twofish was submitted as an AES (Advanced Encryption Standard)
	219	candidate cipher by researchers at CounterPane Systems. It is a
	220	16 round block cipher supporting key sizes of 128, 192, and 256
	221	bits.
	222
	223	See also:
	224	<http://www.schneier.com/twofish.html>
	225
2729bb42 JF	226	config CRYPTO_TWOFISH_COMMON
2729bb42 JF	227	tristate
2729bb42 JF	228	help
	229	Common parts of the Twofish cipher algorithm shared by the
	230	generic c and the assembler implementations.
	231
b9f535ff JF	232	config CRYPTO_TWOFISH_586
b9f535ff JF	233	tristate "Twofish cipher algorithms (i586)"
cce9e06d HX	234	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	235	select CRYPTO_ALGAPI
b9f535ff JF	236	select CRYPTO_TWOFISH_COMMON
	237	help
	238	Twofish cipher algorithm.
	239
	240	Twofish was submitted as an AES (Advanced Encryption Standard)
	241	candidate cipher by researchers at CounterPane Systems. It is a
	242	16 round block cipher supporting key sizes of 128, 192, and 256
	243	bits.
	244
	245	See also:
	246	<http://www.schneier.com/twofish.html>
	247
eaf44088 JF	248	config CRYPTO_TWOFISH_X86_64
eaf44088 JF	249	tristate "Twofish cipher algorithm (x86_64)"
cce9e06d HX	250	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	251	select CRYPTO_ALGAPI
eaf44088 JF	252	select CRYPTO_TWOFISH_COMMON
	253	help
	254	Twofish cipher algorithm (x86_64).
	255
	256	Twofish was submitted as an AES (Advanced Encryption Standard)
	257	candidate cipher by researchers at CounterPane Systems. It is a
	258	16 round block cipher supporting key sizes of 128, 192, and 256
	259	bits.
	260
	261	See also:
	262	<http://www.schneier.com/twofish.html>
	263
1da177e4 LT	264	config CRYPTO_SERPENT
1da177e4 LT	265	tristate "Serpent cipher algorithm"
cce9e06d	266	select CRYPTO_ALGAPI
1da177e4 LT	267	help
	268	Serpent cipher algorithm, by Anderson, Biham & Knudsen.
	269
	270	Keys are allowed to be from 0 to 256 bits in length, in steps
	271	of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
	272	variant of Serpent for compatibility with old kerneli code.
	273
	274	See also:
	275	<http://www.cl.cam.ac.uk/~rja14/serpent.html>
	276
	277	config CRYPTO_AES
	278	tristate "AES cipher algorithms"
cce9e06d	279	select CRYPTO_ALGAPI
1da177e4 LT	280	help
	281	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	282	algorithm.
	283
	284	Rijndael appears to be consistently a very good performer in
	285	both hardware and software across a wide range of computing
	286	environments regardless of its use in feedback or non-feedback
	287	modes. Its key setup time is excellent, and its key agility is
	288	good. Rijndael's very low memory requirements make it very well
	289	suited for restricted-space environments, in which it also
	290	demonstrates excellent performance. Rijndael's operations are
	291	among the easiest to defend against power and timing attacks.
	292
	293	The AES specifies three key sizes: 128, 192 and 256 bits
	294
	295	See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
	296
	297	config CRYPTO_AES_586
	298	tristate "AES cipher algorithms (i586)"
cce9e06d HX	299	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	300	select CRYPTO_ALGAPI
1da177e4 LT	301	help
	302	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	303	algorithm.
	304
	305	Rijndael appears to be consistently a very good performer in
	306	both hardware and software across a wide range of computing
	307	environments regardless of its use in feedback or non-feedback
	308	modes. Its key setup time is excellent, and its key agility is
	309	good. Rijndael's very low memory requirements make it very well
	310	suited for restricted-space environments, in which it also
	311	demonstrates excellent performance. Rijndael's operations are
	312	among the easiest to defend against power and timing attacks.
	313
	314	The AES specifies three key sizes: 128, 192 and 256 bits
a2a892a2 AS	315
	316	See <http://csrc.nist.gov/encryption/aes/> for more information.
	317
	318	config CRYPTO_AES_X86_64
	319	tristate "AES cipher algorithms (x86_64)"
cce9e06d HX	320	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	321	select CRYPTO_ALGAPI
a2a892a2 AS	322	help
	323	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	324	algorithm.
	325
	326	Rijndael appears to be consistently a very good performer in
	327	both hardware and software across a wide range of computing
	328	environments regardless of its use in feedback or non-feedback
	329	modes. Its key setup time is excellent, and its key agility is
	330	good. Rijndael's very low memory requirements make it very well
	331	suited for restricted-space environments, in which it also
	332	demonstrates excellent performance. Rijndael's operations are
	333	among the easiest to defend against power and timing attacks.
	334
	335	The AES specifies three key sizes: 128, 192 and 256 bits
1da177e4 LT	336
	337	See <http://csrc.nist.gov/encryption/aes/> for more information.
	338
bf754ae8 JG	339	config CRYPTO_AES_S390
bf754ae8 JG	340	tristate "AES cipher algorithms (s390)"
cce9e06d HX	341	depends on S390
cce9e06d HX	342	select CRYPTO_ALGAPI
a9e62fad	343	select CRYPTO_BLKCIPHER
bf754ae8 JG	344	help
	345	This is the s390 hardware accelerated implementation of the
	346	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	347	algorithm.
	348
	349	Rijndael appears to be consistently a very good performer in
	350	both hardware and software across a wide range of computing
	351	environments regardless of its use in feedback or non-feedback
	352	modes. Its key setup time is excellent, and its key agility is
	353	good. Rijndael's very low memory requirements make it very well
	354	suited for restricted-space environments, in which it also
	355	demonstrates excellent performance. Rijndael's operations are
	356	among the easiest to defend against power and timing attacks.
	357
	358	On s390 the System z9-109 currently only supports the key size
	359	of 128 bit.
	360
1da177e4 LT	361	config CRYPTO_CAST5
1da177e4 LT	362	tristate "CAST5 (CAST-128) cipher algorithm"
cce9e06d	363	select CRYPTO_ALGAPI
1da177e4 LT	364	help
	365	The CAST5 encryption algorithm (synonymous with CAST-128) is
	366	described in RFC2144.
	367
	368	config CRYPTO_CAST6
	369	tristate "CAST6 (CAST-256) cipher algorithm"
cce9e06d	370	select CRYPTO_ALGAPI
1da177e4 LT	371	help
	372	The CAST6 encryption algorithm (synonymous with CAST-256) is
	373	described in RFC2612.
	374
	375	config CRYPTO_TEA
fb4f10ed	376	tristate "TEA, XTEA and XETA cipher algorithms"
cce9e06d	377	select CRYPTO_ALGAPI
1da177e4 LT	378	help
	379	TEA cipher algorithm.
	380
	381	Tiny Encryption Algorithm is a simple cipher that uses
	382	many rounds for security. It is very fast and uses
	383	little memory.
	384
	385	Xtendend Tiny Encryption Algorithm is a modification to
	386	the TEA algorithm to address a potential key weakness
	387	in the TEA algorithm.
	388
fb4f10ed AG	389	Xtendend Encryption Tiny Algorithm is a mis-implementation
	390	of the XTEA algorithm for compatibility purposes.
	391
1da177e4 LT	392	config CRYPTO_ARC4
1da177e4 LT	393	tristate "ARC4 cipher algorithm"
cce9e06d	394	select CRYPTO_ALGAPI
1da177e4 LT	395	help
	396	ARC4 cipher algorithm.
	397
	398	ARC4 is a stream cipher using keys ranging from 8 bits to 2048
	399	bits in length. This algorithm is required for driver-based
	400	WEP, but it should not be for other purposes because of the
	401	weakness of the algorithm.
	402
	403	config CRYPTO_KHAZAD
	404	tristate "Khazad cipher algorithm"
cce9e06d	405	select CRYPTO_ALGAPI
1da177e4 LT	406	help
	407	Khazad cipher algorithm.
	408
	409	Khazad was a finalist in the initial NESSIE competition. It is
	410	an algorithm optimized for 64-bit processors with good performance
	411	on 32-bit processors. Khazad uses an 128 bit key size.
	412
	413	See also:
	414	<http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
	415
	416	config CRYPTO_ANUBIS
	417	tristate "Anubis cipher algorithm"
cce9e06d	418	select CRYPTO_ALGAPI
1da177e4 LT	419	help
	420	Anubis cipher algorithm.
	421
	422	Anubis is a variable key length cipher which can use keys from
	423	128 bits to 320 bits in length. It was evaluated as a entrant
	424	in the NESSIE competition.
	425
	426	See also:
	427	<https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
	428	<http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
	429
	430
	431	config CRYPTO_DEFLATE
	432	tristate "Deflate compression algorithm"
cce9e06d	433	select CRYPTO_ALGAPI
1da177e4 LT	434	select ZLIB_INFLATE
	435	select ZLIB_DEFLATE
	436	help
	437	This is the Deflate algorithm (RFC1951), specified for use in
	438	IPSec with the IPCOMP protocol (RFC3173, RFC2394).
	439
	440	You will most probably want this if using IPSec.
	441
	442	config CRYPTO_MICHAEL_MIC
	443	tristate "Michael MIC keyed digest algorithm"
cce9e06d	444	select CRYPTO_ALGAPI
1da177e4 LT	445	help
	446	Michael MIC is used for message integrity protection in TKIP
	447	(IEEE 802.11i). This algorithm is required for TKIP, but it
	448	should not be used for other purposes because of the weakness
	449	of the algorithm.
	450
	451	config CRYPTO_CRC32C
	452	tristate "CRC32c CRC algorithm"
cce9e06d	453	select CRYPTO_ALGAPI
1da177e4 LT	454	select LIBCRC32C
	455	help
	456	Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
	457	by iSCSI for header and data digests and by others.
	458	See Castagnoli93. This implementation uses lib/libcrc32c.
	459	Module will be crc32c.
	460
	461	config CRYPTO_TEST
	462	tristate "Testing module"
cce9e06d HX	463	depends on m
cce9e06d HX	464	select CRYPTO_ALGAPI
1da177e4 LT	465	help
	466	Quick & dirty crypto test module.
	467
	468	source "drivers/crypto/Kconfig"
1da177e4	469
cce9e06d HX	470	endif # if CRYPTO
	471
	472	endmenu