[deliverable/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_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_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_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_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
64470f1b RS	152	config CRYPTO_LRW
	153	tristate "LRW support (EXPERIMENTAL)"
	154	depends on EXPERIMENTAL
	155	select CRYPTO_BLKCIPHER
	156	select CRYPTO_MANAGER
	157	select CRYPTO_GF128MUL
	158	help
	159	LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
	160	narrow block cipher mode for dm-crypt. Use it with cipher
	161	specification string aes-lrw-benbi, the key must be 256, 320 or 384.
	162	The first 128, 192 or 256 bits in the key are used for AES and the
	163	rest is used to tie each cipher block to its logical position.
	164
1da177e4 LT	165	config CRYPTO_DES
1da177e4 LT	166	tristate "DES and Triple DES EDE cipher algorithms"
cce9e06d	167	select CRYPTO_ALGAPI
1da177e4 LT	168	help
	169	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	170
1da177e4 LT	171	config CRYPTO_BLOWFISH
1da177e4 LT	172	tristate "Blowfish cipher algorithm"
cce9e06d	173	select CRYPTO_ALGAPI
1da177e4 LT	174	help
	175	Blowfish cipher algorithm, by Bruce Schneier.
	176
	177	This is a variable key length cipher which can use keys from 32
	178	bits to 448 bits in length. It's fast, simple and specifically
	179	designed for use on "large microprocessors".
	180
	181	See also:
	182	<http://www.schneier.com/blowfish.html>
	183
	184	config CRYPTO_TWOFISH
	185	tristate "Twofish cipher algorithm"
cce9e06d	186	select CRYPTO_ALGAPI
2729bb42	187	select CRYPTO_TWOFISH_COMMON
1da177e4 LT	188	help
	189	Twofish cipher algorithm.
	190
	191	Twofish was submitted as an AES (Advanced Encryption Standard)
	192	candidate cipher by researchers at CounterPane Systems. It is a
	193	16 round block cipher supporting key sizes of 128, 192, and 256
	194	bits.
	195
	196	See also:
	197	<http://www.schneier.com/twofish.html>
	198
2729bb42 JF	199	config CRYPTO_TWOFISH_COMMON
2729bb42 JF	200	tristate
2729bb42 JF	201	help
	202	Common parts of the Twofish cipher algorithm shared by the
	203	generic c and the assembler implementations.
	204
b9f535ff JF	205	config CRYPTO_TWOFISH_586
b9f535ff JF	206	tristate "Twofish cipher algorithms (i586)"
cce9e06d HX	207	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	208	select CRYPTO_ALGAPI
b9f535ff JF	209	select CRYPTO_TWOFISH_COMMON
	210	help
	211	Twofish cipher algorithm.
	212
	213	Twofish was submitted as an AES (Advanced Encryption Standard)
	214	candidate cipher by researchers at CounterPane Systems. It is a
	215	16 round block cipher supporting key sizes of 128, 192, and 256
	216	bits.
	217
	218	See also:
	219	<http://www.schneier.com/twofish.html>
	220
eaf44088 JF	221	config CRYPTO_TWOFISH_X86_64
eaf44088 JF	222	tristate "Twofish cipher algorithm (x86_64)"
cce9e06d HX	223	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	224	select CRYPTO_ALGAPI
eaf44088 JF	225	select CRYPTO_TWOFISH_COMMON
	226	help
	227	Twofish cipher algorithm (x86_64).
	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
1da177e4 LT	237	config CRYPTO_SERPENT
1da177e4 LT	238	tristate "Serpent cipher algorithm"
cce9e06d	239	select CRYPTO_ALGAPI
1da177e4 LT	240	help
	241	Serpent cipher algorithm, by Anderson, Biham & Knudsen.
	242
	243	Keys are allowed to be from 0 to 256 bits in length, in steps
	244	of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
	245	variant of Serpent for compatibility with old kerneli code.
	246
	247	See also:
	248	<http://www.cl.cam.ac.uk/~rja14/serpent.html>
	249
	250	config CRYPTO_AES
	251	tristate "AES cipher algorithms"
cce9e06d	252	select CRYPTO_ALGAPI
1da177e4 LT	253	help
	254	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	255	algorithm.
	256
	257	Rijndael appears to be consistently a very good performer in
	258	both hardware and software across a wide range of computing
	259	environments regardless of its use in feedback or non-feedback
	260	modes. Its key setup time is excellent, and its key agility is
	261	good. Rijndael's very low memory requirements make it very well
	262	suited for restricted-space environments, in which it also
	263	demonstrates excellent performance. Rijndael's operations are
	264	among the easiest to defend against power and timing attacks.
	265
	266	The AES specifies three key sizes: 128, 192 and 256 bits
	267
	268	See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
	269
	270	config CRYPTO_AES_586
	271	tristate "AES cipher algorithms (i586)"
cce9e06d HX	272	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	273	select CRYPTO_ALGAPI
1da177e4 LT	274	help
	275	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	276	algorithm.
	277
	278	Rijndael appears to be consistently a very good performer in
	279	both hardware and software across a wide range of computing
	280	environments regardless of its use in feedback or non-feedback
	281	modes. Its key setup time is excellent, and its key agility is
	282	good. Rijndael's very low memory requirements make it very well
	283	suited for restricted-space environments, in which it also
	284	demonstrates excellent performance. Rijndael's operations are
	285	among the easiest to defend against power and timing attacks.
	286
	287	The AES specifies three key sizes: 128, 192 and 256 bits
a2a892a2 AS	288
	289	See <http://csrc.nist.gov/encryption/aes/> for more information.
	290
	291	config CRYPTO_AES_X86_64
	292	tristate "AES cipher algorithms (x86_64)"
cce9e06d HX	293	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	294	select CRYPTO_ALGAPI
a2a892a2 AS	295	help
	296	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	297	algorithm.
	298
	299	Rijndael appears to be consistently a very good performer in
	300	both hardware and software across a wide range of computing
	301	environments regardless of its use in feedback or non-feedback
	302	modes. Its key setup time is excellent, and its key agility is
	303	good. Rijndael's very low memory requirements make it very well
	304	suited for restricted-space environments, in which it also
	305	demonstrates excellent performance. Rijndael's operations are
	306	among the easiest to defend against power and timing attacks.
	307
	308	The AES specifies three key sizes: 128, 192 and 256 bits
1da177e4 LT	309
	310	See <http://csrc.nist.gov/encryption/aes/> for more information.
	311
	312	config CRYPTO_CAST5
	313	tristate "CAST5 (CAST-128) cipher algorithm"
cce9e06d	314	select CRYPTO_ALGAPI
1da177e4 LT	315	help
	316	The CAST5 encryption algorithm (synonymous with CAST-128) is
	317	described in RFC2144.
	318
	319	config CRYPTO_CAST6
	320	tristate "CAST6 (CAST-256) cipher algorithm"
cce9e06d	321	select CRYPTO_ALGAPI
1da177e4 LT	322	help
	323	The CAST6 encryption algorithm (synonymous with CAST-256) is
	324	described in RFC2612.
	325
	326	config CRYPTO_TEA
fb4f10ed	327	tristate "TEA, XTEA and XETA cipher algorithms"
cce9e06d	328	select CRYPTO_ALGAPI
1da177e4 LT	329	help
	330	TEA cipher algorithm.
	331
	332	Tiny Encryption Algorithm is a simple cipher that uses
	333	many rounds for security. It is very fast and uses
	334	little memory.
	335
	336	Xtendend Tiny Encryption Algorithm is a modification to
	337	the TEA algorithm to address a potential key weakness
	338	in the TEA algorithm.
	339
fb4f10ed AG	340	Xtendend Encryption Tiny Algorithm is a mis-implementation
	341	of the XTEA algorithm for compatibility purposes.
	342
1da177e4 LT	343	config CRYPTO_ARC4
1da177e4 LT	344	tristate "ARC4 cipher algorithm"
cce9e06d	345	select CRYPTO_ALGAPI
1da177e4 LT	346	help
	347	ARC4 cipher algorithm.
	348
	349	ARC4 is a stream cipher using keys ranging from 8 bits to 2048
	350	bits in length. This algorithm is required for driver-based
	351	WEP, but it should not be for other purposes because of the
	352	weakness of the algorithm.
	353
	354	config CRYPTO_KHAZAD
	355	tristate "Khazad cipher algorithm"
cce9e06d	356	select CRYPTO_ALGAPI
1da177e4 LT	357	help
	358	Khazad cipher algorithm.
	359
	360	Khazad was a finalist in the initial NESSIE competition. It is
	361	an algorithm optimized for 64-bit processors with good performance
	362	on 32-bit processors. Khazad uses an 128 bit key size.
	363
	364	See also:
	365	<http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
	366
	367	config CRYPTO_ANUBIS
	368	tristate "Anubis cipher algorithm"
cce9e06d	369	select CRYPTO_ALGAPI
1da177e4 LT	370	help
	371	Anubis cipher algorithm.
	372
	373	Anubis is a variable key length cipher which can use keys from
	374	128 bits to 320 bits in length. It was evaluated as a entrant
	375	in the NESSIE competition.
	376
	377	See also:
	378	<https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
	379	<http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
	380
	381
	382	config CRYPTO_DEFLATE
	383	tristate "Deflate compression algorithm"
cce9e06d	384	select CRYPTO_ALGAPI
1da177e4 LT	385	select ZLIB_INFLATE
	386	select ZLIB_DEFLATE
	387	help
	388	This is the Deflate algorithm (RFC1951), specified for use in
	389	IPSec with the IPCOMP protocol (RFC3173, RFC2394).
	390
	391	You will most probably want this if using IPSec.
	392
	393	config CRYPTO_MICHAEL_MIC
	394	tristate "Michael MIC keyed digest algorithm"
cce9e06d	395	select CRYPTO_ALGAPI
1da177e4 LT	396	help
	397	Michael MIC is used for message integrity protection in TKIP
	398	(IEEE 802.11i). This algorithm is required for TKIP, but it
	399	should not be used for other purposes because of the weakness
	400	of the algorithm.
	401
	402	config CRYPTO_CRC32C
	403	tristate "CRC32c CRC algorithm"
cce9e06d	404	select CRYPTO_ALGAPI
1da177e4 LT	405	select LIBCRC32C
	406	help
	407	Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
	408	by iSCSI for header and data digests and by others.
	409	See Castagnoli93. This implementation uses lib/libcrc32c.
	410	Module will be crc32c.
	411
	412	config CRYPTO_TEST
	413	tristate "Testing module"
cce9e06d HX	414	depends on m
cce9e06d HX	415	select CRYPTO_ALGAPI
1da177e4 LT	416	help
	417	Quick & dirty crypto test module.
	418
	419	source "drivers/crypto/Kconfig"
1da177e4	420
cce9e06d HX	421	endif # if CRYPTO
	422
	423	endmenu