[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_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_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
db131ef9 HX	142	config CRYPTO_ECB
	143	tristate "ECB support"
	144	select CRYPTO_BLKCIPHER
43518407	145	select CRYPTO_MANAGER
db131ef9 HX	146	default m
	147	help
	148	ECB: Electronic CodeBook mode
	149	This is the simplest block cipher algorithm. It simply encrypts
	150	the input block by block.
	151
	152	config CRYPTO_CBC
	153	tristate "CBC support"
	154	select CRYPTO_BLKCIPHER
43518407	155	select CRYPTO_MANAGER
db131ef9 HX	156	default m
	157	help
	158	CBC: Cipher Block Chaining mode
	159	This block cipher algorithm is required for IPSec.
	160
1da177e4 LT	161	config CRYPTO_DES
1da177e4 LT	162	tristate "DES and Triple DES EDE cipher algorithms"
cce9e06d	163	select CRYPTO_ALGAPI
1da177e4 LT	164	help
	165	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	166
c1e26e1e JG	167	config CRYPTO_DES_S390
c1e26e1e JG	168	tristate "DES and Triple DES cipher algorithms (s390)"
cce9e06d HX	169	depends on S390
cce9e06d HX	170	select CRYPTO_ALGAPI
a9e62fad	171	select CRYPTO_BLKCIPHER
1da177e4 LT	172	help
	173	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	174
	175	config CRYPTO_BLOWFISH
	176	tristate "Blowfish cipher algorithm"
cce9e06d	177	select CRYPTO_ALGAPI
1da177e4 LT	178	help
	179	Blowfish cipher algorithm, by Bruce Schneier.
	180
	181	This is a variable key length cipher which can use keys from 32
	182	bits to 448 bits in length. It's fast, simple and specifically
	183	designed for use on "large microprocessors".
	184
	185	See also:
	186	<http://www.schneier.com/blowfish.html>
	187
	188	config CRYPTO_TWOFISH
	189	tristate "Twofish cipher algorithm"
cce9e06d	190	select CRYPTO_ALGAPI
2729bb42	191	select CRYPTO_TWOFISH_COMMON
1da177e4 LT	192	help
	193	Twofish cipher algorithm.
	194
	195	Twofish was submitted as an AES (Advanced Encryption Standard)
	196	candidate cipher by researchers at CounterPane Systems. It is a
	197	16 round block cipher supporting key sizes of 128, 192, and 256
	198	bits.
	199
	200	See also:
	201	<http://www.schneier.com/twofish.html>
	202
2729bb42 JF	203	config CRYPTO_TWOFISH_COMMON
2729bb42 JF	204	tristate
2729bb42 JF	205	help
	206	Common parts of the Twofish cipher algorithm shared by the
	207	generic c and the assembler implementations.
	208
b9f535ff JF	209	config CRYPTO_TWOFISH_586
b9f535ff JF	210	tristate "Twofish cipher algorithms (i586)"
cce9e06d HX	211	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	212	select CRYPTO_ALGAPI
b9f535ff JF	213	select CRYPTO_TWOFISH_COMMON
	214	help
	215	Twofish cipher algorithm.
	216
	217	Twofish was submitted as an AES (Advanced Encryption Standard)
	218	candidate cipher by researchers at CounterPane Systems. It is a
	219	16 round block cipher supporting key sizes of 128, 192, and 256
	220	bits.
	221
	222	See also:
	223	<http://www.schneier.com/twofish.html>
	224
eaf44088 JF	225	config CRYPTO_TWOFISH_X86_64
eaf44088 JF	226	tristate "Twofish cipher algorithm (x86_64)"
cce9e06d HX	227	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	228	select CRYPTO_ALGAPI
eaf44088 JF	229	select CRYPTO_TWOFISH_COMMON
	230	help
	231	Twofish cipher algorithm (x86_64).
	232
	233	Twofish was submitted as an AES (Advanced Encryption Standard)
	234	candidate cipher by researchers at CounterPane Systems. It is a
	235	16 round block cipher supporting key sizes of 128, 192, and 256
	236	bits.
	237
	238	See also:
	239	<http://www.schneier.com/twofish.html>
	240
1da177e4 LT	241	config CRYPTO_SERPENT
1da177e4 LT	242	tristate "Serpent cipher algorithm"
cce9e06d	243	select CRYPTO_ALGAPI
1da177e4 LT	244	help
	245	Serpent cipher algorithm, by Anderson, Biham & Knudsen.
	246
	247	Keys are allowed to be from 0 to 256 bits in length, in steps
	248	of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
	249	variant of Serpent for compatibility with old kerneli code.
	250
	251	See also:
	252	<http://www.cl.cam.ac.uk/~rja14/serpent.html>
	253
	254	config CRYPTO_AES
	255	tristate "AES cipher algorithms"
cce9e06d	256	select CRYPTO_ALGAPI
1da177e4 LT	257	help
	258	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	259	algorithm.
	260
	261	Rijndael appears to be consistently a very good performer in
	262	both hardware and software across a wide range of computing
	263	environments regardless of its use in feedback or non-feedback
	264	modes. Its key setup time is excellent, and its key agility is
	265	good. Rijndael's very low memory requirements make it very well
	266	suited for restricted-space environments, in which it also
	267	demonstrates excellent performance. Rijndael's operations are
	268	among the easiest to defend against power and timing attacks.
	269
	270	The AES specifies three key sizes: 128, 192 and 256 bits
	271
	272	See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
	273
	274	config CRYPTO_AES_586
	275	tristate "AES cipher algorithms (i586)"
cce9e06d HX	276	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	277	select CRYPTO_ALGAPI
1da177e4 LT	278	help
	279	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	280	algorithm.
	281
	282	Rijndael appears to be consistently a very good performer in
	283	both hardware and software across a wide range of computing
	284	environments regardless of its use in feedback or non-feedback
	285	modes. Its key setup time is excellent, and its key agility is
	286	good. Rijndael's very low memory requirements make it very well
	287	suited for restricted-space environments, in which it also
	288	demonstrates excellent performance. Rijndael's operations are
	289	among the easiest to defend against power and timing attacks.
	290
	291	The AES specifies three key sizes: 128, 192 and 256 bits
a2a892a2 AS	292
	293	See <http://csrc.nist.gov/encryption/aes/> for more information.
	294
	295	config CRYPTO_AES_X86_64
	296	tristate "AES cipher algorithms (x86_64)"
cce9e06d HX	297	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	298	select CRYPTO_ALGAPI
a2a892a2 AS	299	help
	300	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	301	algorithm.
	302
	303	Rijndael appears to be consistently a very good performer in
	304	both hardware and software across a wide range of computing
	305	environments regardless of its use in feedback or non-feedback
	306	modes. Its key setup time is excellent, and its key agility is
	307	good. Rijndael's very low memory requirements make it very well
	308	suited for restricted-space environments, in which it also
	309	demonstrates excellent performance. Rijndael's operations are
	310	among the easiest to defend against power and timing attacks.
	311
	312	The AES specifies three key sizes: 128, 192 and 256 bits
1da177e4 LT	313
	314	See <http://csrc.nist.gov/encryption/aes/> for more information.
	315
bf754ae8 JG	316	config CRYPTO_AES_S390
bf754ae8 JG	317	tristate "AES cipher algorithms (s390)"
cce9e06d HX	318	depends on S390
cce9e06d HX	319	select CRYPTO_ALGAPI
a9e62fad	320	select CRYPTO_BLKCIPHER
bf754ae8 JG	321	help
	322	This is the s390 hardware accelerated implementation of the
	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	On s390 the System z9-109 currently only supports the key size
	336	of 128 bit.
	337
1da177e4 LT	338	config CRYPTO_CAST5
1da177e4 LT	339	tristate "CAST5 (CAST-128) cipher algorithm"
cce9e06d	340	select CRYPTO_ALGAPI
1da177e4 LT	341	help
	342	The CAST5 encryption algorithm (synonymous with CAST-128) is
	343	described in RFC2144.
	344
	345	config CRYPTO_CAST6
	346	tristate "CAST6 (CAST-256) cipher algorithm"
cce9e06d	347	select CRYPTO_ALGAPI
1da177e4 LT	348	help
	349	The CAST6 encryption algorithm (synonymous with CAST-256) is
	350	described in RFC2612.
	351
	352	config CRYPTO_TEA
fb4f10ed	353	tristate "TEA, XTEA and XETA cipher algorithms"
cce9e06d	354	select CRYPTO_ALGAPI
1da177e4 LT	355	help
	356	TEA cipher algorithm.
	357
	358	Tiny Encryption Algorithm is a simple cipher that uses
	359	many rounds for security. It is very fast and uses
	360	little memory.
	361
	362	Xtendend Tiny Encryption Algorithm is a modification to
	363	the TEA algorithm to address a potential key weakness
	364	in the TEA algorithm.
	365
fb4f10ed AG	366	Xtendend Encryption Tiny Algorithm is a mis-implementation
	367	of the XTEA algorithm for compatibility purposes.
	368
1da177e4 LT	369	config CRYPTO_ARC4
1da177e4 LT	370	tristate "ARC4 cipher algorithm"
cce9e06d	371	select CRYPTO_ALGAPI
1da177e4 LT	372	help
	373	ARC4 cipher algorithm.
	374
	375	ARC4 is a stream cipher using keys ranging from 8 bits to 2048
	376	bits in length. This algorithm is required for driver-based
	377	WEP, but it should not be for other purposes because of the
	378	weakness of the algorithm.
	379
	380	config CRYPTO_KHAZAD
	381	tristate "Khazad cipher algorithm"
cce9e06d	382	select CRYPTO_ALGAPI
1da177e4 LT	383	help
	384	Khazad cipher algorithm.
	385
	386	Khazad was a finalist in the initial NESSIE competition. It is
	387	an algorithm optimized for 64-bit processors with good performance
	388	on 32-bit processors. Khazad uses an 128 bit key size.
	389
	390	See also:
	391	<http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
	392
	393	config CRYPTO_ANUBIS
	394	tristate "Anubis cipher algorithm"
cce9e06d	395	select CRYPTO_ALGAPI
1da177e4 LT	396	help
	397	Anubis cipher algorithm.
	398
	399	Anubis is a variable key length cipher which can use keys from
	400	128 bits to 320 bits in length. It was evaluated as a entrant
	401	in the NESSIE competition.
	402
	403	See also:
	404	<https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
	405	<http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
	406
	407
	408	config CRYPTO_DEFLATE
	409	tristate "Deflate compression algorithm"
cce9e06d	410	select CRYPTO_ALGAPI
1da177e4 LT	411	select ZLIB_INFLATE
	412	select ZLIB_DEFLATE
	413	help
	414	This is the Deflate algorithm (RFC1951), specified for use in
	415	IPSec with the IPCOMP protocol (RFC3173, RFC2394).
	416
	417	You will most probably want this if using IPSec.
	418
	419	config CRYPTO_MICHAEL_MIC
	420	tristate "Michael MIC keyed digest algorithm"
cce9e06d	421	select CRYPTO_ALGAPI
1da177e4 LT	422	help
	423	Michael MIC is used for message integrity protection in TKIP
	424	(IEEE 802.11i). This algorithm is required for TKIP, but it
	425	should not be used for other purposes because of the weakness
	426	of the algorithm.
	427
	428	config CRYPTO_CRC32C
	429	tristate "CRC32c CRC algorithm"
cce9e06d	430	select CRYPTO_ALGAPI
1da177e4 LT	431	select LIBCRC32C
	432	help
	433	Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
	434	by iSCSI for header and data digests and by others.
	435	See Castagnoli93. This implementation uses lib/libcrc32c.
	436	Module will be crc32c.
	437
	438	config CRYPTO_TEST
	439	tristate "Testing module"
cce9e06d HX	440	depends on m
cce9e06d HX	441	select CRYPTO_ALGAPI
1da177e4 LT	442	help
	443	Quick & dirty crypto test module.
	444
	445	source "drivers/crypto/Kconfig"
1da177e4	446
cce9e06d HX	447	endif # if CRYPTO
	448
	449	endmenu