[linux.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_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
1da177e4 LT	171	config CRYPTO_DES
1da177e4 LT	172	tristate "DES and Triple DES EDE cipher algorithms"
cce9e06d	173	select CRYPTO_ALGAPI
1da177e4 LT	174	help
	175	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	176
c1e26e1e JG	177	config CRYPTO_DES_S390
c1e26e1e JG	178	tristate "DES and Triple DES cipher algorithms (s390)"
cce9e06d HX	179	depends on S390
cce9e06d HX	180	select CRYPTO_ALGAPI
a9e62fad	181	select CRYPTO_BLKCIPHER
1da177e4 LT	182	help
	183	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	184
	185	config CRYPTO_BLOWFISH
	186	tristate "Blowfish cipher algorithm"
cce9e06d	187	select CRYPTO_ALGAPI
1da177e4 LT	188	help
	189	Blowfish cipher algorithm, by Bruce Schneier.
	190
	191	This is a variable key length cipher which can use keys from 32
	192	bits to 448 bits in length. It's fast, simple and specifically
	193	designed for use on "large microprocessors".
	194
	195	See also:
	196	<http://www.schneier.com/blowfish.html>
	197
	198	config CRYPTO_TWOFISH
	199	tristate "Twofish cipher algorithm"
cce9e06d	200	select CRYPTO_ALGAPI
2729bb42	201	select CRYPTO_TWOFISH_COMMON
1da177e4 LT	202	help
	203	Twofish cipher algorithm.
	204
	205	Twofish was submitted as an AES (Advanced Encryption Standard)
	206	candidate cipher by researchers at CounterPane Systems. It is a
	207	16 round block cipher supporting key sizes of 128, 192, and 256
	208	bits.
	209
	210	See also:
	211	<http://www.schneier.com/twofish.html>
	212
2729bb42 JF	213	config CRYPTO_TWOFISH_COMMON
2729bb42 JF	214	tristate
2729bb42 JF	215	help
	216	Common parts of the Twofish cipher algorithm shared by the
	217	generic c and the assembler implementations.
	218
b9f535ff JF	219	config CRYPTO_TWOFISH_586
b9f535ff JF	220	tristate "Twofish cipher algorithms (i586)"
cce9e06d HX	221	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	222	select CRYPTO_ALGAPI
b9f535ff JF	223	select CRYPTO_TWOFISH_COMMON
	224	help
	225	Twofish cipher algorithm.
	226
	227	Twofish was submitted as an AES (Advanced Encryption Standard)
	228	candidate cipher by researchers at CounterPane Systems. It is a
	229	16 round block cipher supporting key sizes of 128, 192, and 256
	230	bits.
	231
	232	See also:
	233	<http://www.schneier.com/twofish.html>
	234
eaf44088 JF	235	config CRYPTO_TWOFISH_X86_64
eaf44088 JF	236	tristate "Twofish cipher algorithm (x86_64)"
cce9e06d HX	237	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	238	select CRYPTO_ALGAPI
eaf44088 JF	239	select CRYPTO_TWOFISH_COMMON
	240	help
	241	Twofish cipher algorithm (x86_64).
	242
	243	Twofish was submitted as an AES (Advanced Encryption Standard)
	244	candidate cipher by researchers at CounterPane Systems. It is a
	245	16 round block cipher supporting key sizes of 128, 192, and 256
	246	bits.
	247
	248	See also:
	249	<http://www.schneier.com/twofish.html>
	250
1da177e4 LT	251	config CRYPTO_SERPENT
1da177e4 LT	252	tristate "Serpent cipher algorithm"
cce9e06d	253	select CRYPTO_ALGAPI
1da177e4 LT	254	help
	255	Serpent cipher algorithm, by Anderson, Biham & Knudsen.
	256
	257	Keys are allowed to be from 0 to 256 bits in length, in steps
	258	of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
	259	variant of Serpent for compatibility with old kerneli code.
	260
	261	See also:
	262	<http://www.cl.cam.ac.uk/~rja14/serpent.html>
	263
	264	config CRYPTO_AES
	265	tristate "AES cipher algorithms"
cce9e06d	266	select CRYPTO_ALGAPI
1da177e4 LT	267	help
	268	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	269	algorithm.
	270
	271	Rijndael appears to be consistently a very good performer in
	272	both hardware and software across a wide range of computing
	273	environments regardless of its use in feedback or non-feedback
	274	modes. Its key setup time is excellent, and its key agility is
	275	good. Rijndael's very low memory requirements make it very well
	276	suited for restricted-space environments, in which it also
	277	demonstrates excellent performance. Rijndael's operations are
	278	among the easiest to defend against power and timing attacks.
	279
	280	The AES specifies three key sizes: 128, 192 and 256 bits
	281
	282	See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
	283
	284	config CRYPTO_AES_586
	285	tristate "AES cipher algorithms (i586)"
cce9e06d HX	286	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	287	select CRYPTO_ALGAPI
1da177e4 LT	288	help
	289	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	290	algorithm.
	291
	292	Rijndael appears to be consistently a very good performer in
	293	both hardware and software across a wide range of computing
	294	environments regardless of its use in feedback or non-feedback
	295	modes. Its key setup time is excellent, and its key agility is
	296	good. Rijndael's very low memory requirements make it very well
	297	suited for restricted-space environments, in which it also
	298	demonstrates excellent performance. Rijndael's operations are
	299	among the easiest to defend against power and timing attacks.
	300
	301	The AES specifies three key sizes: 128, 192 and 256 bits
a2a892a2 AS	302
	303	See <http://csrc.nist.gov/encryption/aes/> for more information.
	304
	305	config CRYPTO_AES_X86_64
	306	tristate "AES cipher algorithms (x86_64)"
cce9e06d HX	307	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	308	select CRYPTO_ALGAPI
a2a892a2 AS	309	help
	310	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	311	algorithm.
	312
	313	Rijndael appears to be consistently a very good performer in
	314	both hardware and software across a wide range of computing
	315	environments regardless of its use in feedback or non-feedback
	316	modes. Its key setup time is excellent, and its key agility is
	317	good. Rijndael's very low memory requirements make it very well
	318	suited for restricted-space environments, in which it also
	319	demonstrates excellent performance. Rijndael's operations are
	320	among the easiest to defend against power and timing attacks.
	321
	322	The AES specifies three key sizes: 128, 192 and 256 bits
1da177e4 LT	323
	324	See <http://csrc.nist.gov/encryption/aes/> for more information.
	325
bf754ae8 JG	326	config CRYPTO_AES_S390
bf754ae8 JG	327	tristate "AES cipher algorithms (s390)"
cce9e06d HX	328	depends on S390
cce9e06d HX	329	select CRYPTO_ALGAPI
a9e62fad	330	select CRYPTO_BLKCIPHER
bf754ae8 JG	331	help
	332	This is the s390 hardware accelerated implementation of the
	333	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	334	algorithm.
	335
	336	Rijndael appears to be consistently a very good performer in
	337	both hardware and software across a wide range of computing
	338	environments regardless of its use in feedback or non-feedback
	339	modes. Its key setup time is excellent, and its key agility is
	340	good. Rijndael's very low memory requirements make it very well
	341	suited for restricted-space environments, in which it also
	342	demonstrates excellent performance. Rijndael's operations are
	343	among the easiest to defend against power and timing attacks.
	344
	345	On s390 the System z9-109 currently only supports the key size
	346	of 128 bit.
	347
1da177e4 LT	348	config CRYPTO_CAST5
1da177e4 LT	349	tristate "CAST5 (CAST-128) cipher algorithm"
cce9e06d	350	select CRYPTO_ALGAPI
1da177e4 LT	351	help
	352	The CAST5 encryption algorithm (synonymous with CAST-128) is
	353	described in RFC2144.
	354
	355	config CRYPTO_CAST6
	356	tristate "CAST6 (CAST-256) cipher algorithm"
cce9e06d	357	select CRYPTO_ALGAPI
1da177e4 LT	358	help
	359	The CAST6 encryption algorithm (synonymous with CAST-256) is
	360	described in RFC2612.
	361
	362	config CRYPTO_TEA
fb4f10ed	363	tristate "TEA, XTEA and XETA cipher algorithms"
cce9e06d	364	select CRYPTO_ALGAPI
1da177e4 LT	365	help
	366	TEA cipher algorithm.
	367
	368	Tiny Encryption Algorithm is a simple cipher that uses
	369	many rounds for security. It is very fast and uses
	370	little memory.
	371
	372	Xtendend Tiny Encryption Algorithm is a modification to
	373	the TEA algorithm to address a potential key weakness
	374	in the TEA algorithm.
	375
fb4f10ed AG	376	Xtendend Encryption Tiny Algorithm is a mis-implementation
	377	of the XTEA algorithm for compatibility purposes.
	378
1da177e4 LT	379	config CRYPTO_ARC4
1da177e4 LT	380	tristate "ARC4 cipher algorithm"
cce9e06d	381	select CRYPTO_ALGAPI
1da177e4 LT	382	help
	383	ARC4 cipher algorithm.
	384
	385	ARC4 is a stream cipher using keys ranging from 8 bits to 2048
	386	bits in length. This algorithm is required for driver-based
	387	WEP, but it should not be for other purposes because of the
	388	weakness of the algorithm.
	389
	390	config CRYPTO_KHAZAD
	391	tristate "Khazad cipher algorithm"
cce9e06d	392	select CRYPTO_ALGAPI
1da177e4 LT	393	help
	394	Khazad cipher algorithm.
	395
	396	Khazad was a finalist in the initial NESSIE competition. It is
	397	an algorithm optimized for 64-bit processors with good performance
	398	on 32-bit processors. Khazad uses an 128 bit key size.
	399
	400	See also:
	401	<http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
	402
	403	config CRYPTO_ANUBIS
	404	tristate "Anubis cipher algorithm"
cce9e06d	405	select CRYPTO_ALGAPI
1da177e4 LT	406	help
	407	Anubis cipher algorithm.
	408
	409	Anubis is a variable key length cipher which can use keys from
	410	128 bits to 320 bits in length. It was evaluated as a entrant
	411	in the NESSIE competition.
	412
	413	See also:
	414	<https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
	415	<http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
	416
	417
	418	config CRYPTO_DEFLATE
	419	tristate "Deflate compression algorithm"
cce9e06d	420	select CRYPTO_ALGAPI
1da177e4 LT	421	select ZLIB_INFLATE
	422	select ZLIB_DEFLATE
	423	help
	424	This is the Deflate algorithm (RFC1951), specified for use in
	425	IPSec with the IPCOMP protocol (RFC3173, RFC2394).
	426
	427	You will most probably want this if using IPSec.
	428
	429	config CRYPTO_MICHAEL_MIC
	430	tristate "Michael MIC keyed digest algorithm"
cce9e06d	431	select CRYPTO_ALGAPI
1da177e4 LT	432	help
	433	Michael MIC is used for message integrity protection in TKIP
	434	(IEEE 802.11i). This algorithm is required for TKIP, but it
	435	should not be used for other purposes because of the weakness
	436	of the algorithm.
	437
	438	config CRYPTO_CRC32C
	439	tristate "CRC32c CRC algorithm"
cce9e06d	440	select CRYPTO_ALGAPI
1da177e4 LT	441	select LIBCRC32C
	442	help
	443	Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
	444	by iSCSI for header and data digests and by others.
	445	See Castagnoli93. This implementation uses lib/libcrc32c.
	446	Module will be crc32c.
	447
	448	config CRYPTO_TEST
	449	tristate "Testing module"
cce9e06d HX	450	depends on m
cce9e06d HX	451	select CRYPTO_ALGAPI
1da177e4 LT	452	help
	453	Quick & dirty crypto test module.
	454
	455	source "drivers/crypto/Kconfig"
1da177e4	456
cce9e06d HX	457	endif # if CRYPTO
	458
	459	endmenu