[deliverable/linux.git] / crypto / Kconfig

#
# Cryptographic API Configuration
#

menuconfig 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_ABLKCIPHER
	tristate
	select CRYPTO_BLKCIPHER

config CRYPTO_BLKCIPHER
	tristate
	select CRYPTO_ALGAPI

config CRYPTO_HASH
	tristate
	select CRYPTO_ALGAPI

config CRYPTO_MANAGER
	tristate "Cryptographic algorithm manager"
	select CRYPTO_ALGAPI
	help
	  Create default cryptographic template instantiations such as
	  cbc(aes).

config CRYPTO_HMAC
	tristate "HMAC support"
	select CRYPTO_HASH
	select CRYPTO_MANAGER
	help
	  HMAC: Keyed-Hashing for Message Authentication (RFC2104).
	  This is required for IPSec.

config CRYPTO_XCBC
	tristate "XCBC support"
	depends on EXPERIMENTAL
	select CRYPTO_HASH
	select CRYPTO_MANAGER
	help
	  XCBC: Keyed-Hashing with encryption algorithm
		http://www.ietf.org/rfc/rfc3566.txt
		http://csrc.nist.gov/encryption/modes/proposedmodes/
		 xcbc-mac/xcbc-mac-spec.pdf

config CRYPTO_NULL
	tristate "Null algorithms"
	select CRYPTO_ALGAPI
	help
	  These are 'Null' algorithms, used by IPsec, which do nothing.

config CRYPTO_MD4
	tristate "MD4 digest algorithm"
	select CRYPTO_ALGAPI
	help
	  MD4 message digest algorithm (RFC1320).

config CRYPTO_MD5
	tristate "MD5 digest algorithm"
	select CRYPTO_ALGAPI
	help
	  MD5 message digest algorithm (RFC1321).

config CRYPTO_SHA1
	tristate "SHA1 digest algorithm"
	select CRYPTO_ALGAPI
	help
	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).

config CRYPTO_SHA256
	tristate "SHA256 digest algorithm"
	select CRYPTO_ALGAPI
	help
	  SHA256 secure hash standard (DFIPS 180-2).
	  
	  This version of SHA implements a 256 bit hash with 128 bits of
	  security against collision attacks.

config CRYPTO_SHA512
	tristate "SHA384 and SHA512 digest algorithms"
	select CRYPTO_ALGAPI
	help
	  SHA512 secure hash standard (DFIPS 180-2).
	  
	  This version of SHA implements a 512 bit hash with 256 bits of
	  security against collision attacks.

	  This code also includes SHA-384, a 384 bit hash with 192 bits
	  of security against collision attacks.

config CRYPTO_WP512
	tristate "Whirlpool digest algorithms"
	select CRYPTO_ALGAPI
	help
	  Whirlpool hash algorithm 512, 384 and 256-bit hashes

	  Whirlpool-512 is part of the NESSIE cryptographic primitives.
	  Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard

	  See also:
	  <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>

config CRYPTO_TGR192
	tristate "Tiger digest algorithms"
	select CRYPTO_ALGAPI
	help
	  Tiger hash algorithm 192, 160 and 128-bit hashes

	  Tiger is a hash function optimized for 64-bit processors while
	  still having decent performance on 32-bit processors.
	  Tiger was developed by Ross Anderson and Eli Biham.

	  See also:
	  <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.

config CRYPTO_GF128MUL
	tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	help
	  Efficient table driven implementation of multiplications in the
	  field GF(2^128).  This is needed by some cypher modes. This
	  option will be selected automatically if you select such a
	  cipher mode.  Only select this option by hand if you expect to load
	  an external module that requires these functions.

config CRYPTO_ECB
	tristate "ECB support"
	select CRYPTO_BLKCIPHER
	select CRYPTO_MANAGER
	default m
	help
	  ECB: Electronic CodeBook mode
	  This is the simplest block cipher algorithm.  It simply encrypts
	  the input block by block.

config CRYPTO_CBC
	tristate "CBC support"
	select CRYPTO_BLKCIPHER
	select CRYPTO_MANAGER
	default m
	help
	  CBC: Cipher Block Chaining mode
	  This block cipher algorithm is required for IPSec.

config CRYPTO_PCBC
	tristate "PCBC support"
	select CRYPTO_BLKCIPHER
	select CRYPTO_MANAGER
	default m
	help
	  PCBC: Propagating Cipher Block Chaining mode
	  This block cipher algorithm is required for RxRPC.

config CRYPTO_LRW
	tristate "LRW support (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	select CRYPTO_BLKCIPHER
	select CRYPTO_MANAGER
	select CRYPTO_GF128MUL
	help
	  LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
	  narrow block cipher mode for dm-crypt.  Use it with cipher
	  specification string aes-lrw-benbi, the key must be 256, 320 or 384.
	  The first 128, 192 or 256 bits in the key are used for AES and the
	  rest is used to tie each cipher block to its logical position.

config CRYPTO_CRYPTD
	tristate "Software async crypto daemon"
	select CRYPTO_ABLKCIPHER
	select CRYPTO_MANAGER
	help
	  This is a generic software asynchronous crypto daemon that
	  converts an arbitrary synchronous software crypto algorithm
	  into an asynchronous algorithm that executes in a kernel thread.

config CRYPTO_DES
	tristate "DES and Triple DES EDE cipher algorithms"
	select CRYPTO_ALGAPI
	help
	  DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).

config CRYPTO_FCRYPT
	tristate "FCrypt cipher algorithm"
	select CRYPTO_ALGAPI
	select CRYPTO_BLKCIPHER
	help
	  FCrypt algorithm used by RxRPC.

config CRYPTO_BLOWFISH
	tristate "Blowfish cipher algorithm"
	select CRYPTO_ALGAPI
	help
	  Blowfish cipher algorithm, by Bruce Schneier.
	  
	  This is a variable key length cipher which can use keys from 32
	  bits to 448 bits in length.  It's fast, simple and specifically
	  designed for use on "large microprocessors".
	  
	  See also:
	  <http://www.schneier.com/blowfish.html>

config CRYPTO_TWOFISH
	tristate "Twofish cipher algorithm"
	select CRYPTO_ALGAPI
	select CRYPTO_TWOFISH_COMMON
	help
	  Twofish cipher algorithm.
	  
	  Twofish was submitted as an AES (Advanced Encryption Standard)
	  candidate cipher by researchers at CounterPane Systems.  It is a
	  16 round block cipher supporting key sizes of 128, 192, and 256
	  bits.
	  
	  See also:
	  <http://www.schneier.com/twofish.html>

config CRYPTO_TWOFISH_COMMON
	tristate
	help
	  Common parts of the Twofish cipher algorithm shared by the
	  generic c and the assembler implementations.

config CRYPTO_TWOFISH_586
	tristate "Twofish cipher algorithms (i586)"
	depends on (X86 || UML_X86) && !64BIT
	select CRYPTO_ALGAPI
	select CRYPTO_TWOFISH_COMMON
	help
	  Twofish cipher algorithm.

	  Twofish was submitted as an AES (Advanced Encryption Standard)
	  candidate cipher by researchers at CounterPane Systems.  It is a
	  16 round block cipher supporting key sizes of 128, 192, and 256
	  bits.

	  See also:
	  <http://www.schneier.com/twofish.html>

config CRYPTO_TWOFISH_X86_64
	tristate "Twofish cipher algorithm (x86_64)"
	depends on (X86 || UML_X86) && 64BIT
	select CRYPTO_ALGAPI
	select CRYPTO_TWOFISH_COMMON
	help
	  Twofish cipher algorithm (x86_64).

	  Twofish was submitted as an AES (Advanced Encryption Standard)
	  candidate cipher by researchers at CounterPane Systems.  It is a
	  16 round block cipher supporting key sizes of 128, 192, and 256
	  bits.

	  See also:
	  <http://www.schneier.com/twofish.html>

config CRYPTO_SERPENT
	tristate "Serpent cipher algorithm"
	select CRYPTO_ALGAPI
	help
	  Serpent cipher algorithm, by Anderson, Biham & Knudsen.

	  Keys are allowed to be from 0 to 256 bits in length, in steps
	  of 8 bits.  Also includes the 'Tnepres' algorithm, a reversed
	  variant of Serpent for compatibility with old kerneli.org code.

	  See also:
	  <http://www.cl.cam.ac.uk/~rja14/serpent.html>

config CRYPTO_AES
	tristate "AES cipher algorithms"
	select CRYPTO_ALGAPI
	help
	  AES cipher algorithms (FIPS-197). AES uses the Rijndael 
	  algorithm.

	  Rijndael appears to be consistently a very good performer in
	  both hardware and software across a wide range of computing 
	  environments regardless of its use in feedback or non-feedback 
	  modes. Its key setup time is excellent, and its key agility is 
	  good. Rijndael's very low memory requirements make it very well 
	  suited for restricted-space environments, in which it also 
	  demonstrates excellent performance. Rijndael's operations are 
	  among the easiest to defend against power and timing attacks.	

	  The AES specifies three key sizes: 128, 192 and 256 bits	  

	  See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.

config CRYPTO_AES_586
	tristate "AES cipher algorithms (i586)"
	depends on (X86 || UML_X86) && !64BIT
	select CRYPTO_ALGAPI
	help
	  AES cipher algorithms (FIPS-197). AES uses the Rijndael 
	  algorithm.

	  Rijndael appears to be consistently a very good performer in
	  both hardware and software across a wide range of computing 
	  environments regardless of its use in feedback or non-feedback 
	  modes. Its key setup time is excellent, and its key agility is 
	  good. Rijndael's very low memory requirements make it very well 
	  suited for restricted-space environments, in which it also 
	  demonstrates excellent performance. Rijndael's operations are 
	  among the easiest to defend against power and timing attacks.	

	  The AES specifies three key sizes: 128, 192 and 256 bits	  

	  See <http://csrc.nist.gov/encryption/aes/> for more information.

config CRYPTO_AES_X86_64
	tristate "AES cipher algorithms (x86_64)"
	depends on (X86 || UML_X86) && 64BIT
	select CRYPTO_ALGAPI
	help
	  AES cipher algorithms (FIPS-197). AES uses the Rijndael 
	  algorithm.

	  Rijndael appears to be consistently a very good performer in
	  both hardware and software across a wide range of computing 
	  environments regardless of its use in feedback or non-feedback 
	  modes. Its key setup time is excellent, and its key agility is 
	  good. Rijndael's very low memory requirements make it very well 
	  suited for restricted-space environments, in which it also 
	  demonstrates excellent performance. Rijndael's operations are 
	  among the easiest to defend against power and timing attacks.	

	  The AES specifies three key sizes: 128, 192 and 256 bits	  

	  See <http://csrc.nist.gov/encryption/aes/> for more information.

config CRYPTO_CAST5
	tristate "CAST5 (CAST-128) cipher algorithm"
	select CRYPTO_ALGAPI
	help
	  The CAST5 encryption algorithm (synonymous with CAST-128) is
	  described in RFC2144.

config CRYPTO_CAST6
	tristate "CAST6 (CAST-256) cipher algorithm"
	select CRYPTO_ALGAPI
	help
	  The CAST6 encryption algorithm (synonymous with CAST-256) is
	  described in RFC2612.

config CRYPTO_TEA
	tristate "TEA, XTEA and XETA cipher algorithms"
	select CRYPTO_ALGAPI
	help
	  TEA cipher algorithm.

	  Tiny Encryption Algorithm is a simple cipher that uses
	  many rounds for security.  It is very fast and uses
	  little memory.

	  Xtendend Tiny Encryption Algorithm is a modification to
	  the TEA algorithm to address a potential key weakness
	  in the TEA algorithm.

	  Xtendend Encryption Tiny Algorithm is a mis-implementation 
	  of the XTEA algorithm for compatibility purposes.

config CRYPTO_ARC4
	tristate "ARC4 cipher algorithm"
	select CRYPTO_ALGAPI
	help
	  ARC4 cipher algorithm.

	  ARC4 is a stream cipher using keys ranging from 8 bits to 2048
	  bits in length.  This algorithm is required for driver-based 
	  WEP, but it should not be for other purposes because of the
	  weakness of the algorithm.

config CRYPTO_KHAZAD
	tristate "Khazad cipher algorithm"
	select CRYPTO_ALGAPI
	help
	  Khazad cipher algorithm.

	  Khazad was a finalist in the initial NESSIE competition.  It is
	  an algorithm optimized for 64-bit processors with good performance
	  on 32-bit processors.  Khazad uses an 128 bit key size.

	  See also:
	  <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>

config CRYPTO_ANUBIS
	tristate "Anubis cipher algorithm"
	select CRYPTO_ALGAPI
	help
	  Anubis cipher algorithm.

	  Anubis is a variable key length cipher which can use keys from 
	  128 bits to 320 bits in length.  It was evaluated as a entrant
	  in the NESSIE competition.
	  
	  See also:
	  <https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
	  <http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>


config CRYPTO_DEFLATE
	tristate "Deflate compression algorithm"
	select CRYPTO_ALGAPI
	select ZLIB_INFLATE
	select ZLIB_DEFLATE
	help
	  This is the Deflate algorithm (RFC1951), specified for use in
	  IPSec with the IPCOMP protocol (RFC3173, RFC2394).
	  
	  You will most probably want this if using IPSec.

config CRYPTO_MICHAEL_MIC
	tristate "Michael MIC keyed digest algorithm"
	select CRYPTO_ALGAPI
	help
	  Michael MIC is used for message integrity protection in TKIP
	  (IEEE 802.11i). This algorithm is required for TKIP, but it
	  should not be used for other purposes because of the weakness
	  of the algorithm.

config CRYPTO_CRC32C
	tristate "CRC32c CRC algorithm"
	select CRYPTO_ALGAPI
	select LIBCRC32C
	help
	  Castagnoli, et al Cyclic Redundancy-Check Algorithm.  Used
	  by iSCSI for header and data digests and by others.
	  See Castagnoli93.  This implementation uses lib/libcrc32c.
          Module will be crc32c.

config CRYPTO_CAMELLIA
	tristate "Camellia cipher algorithms"
	depends on CRYPTO
	select CRYPTO_ALGAPI
	help
	  Camellia cipher algorithms module.

	  Camellia is a symmetric key block cipher developed jointly
	  at NTT and Mitsubishi Electric Corporation.

	  The Camellia specifies three key sizes: 128, 192 and 256 bits.

	  See also:
	  <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>

config CRYPTO_TEST
	tristate "Testing module"
	depends on m
	select CRYPTO_ALGAPI
	help
	  Quick & dirty crypto test module.

source "drivers/crypto/Kconfig"

endif	# if CRYPTO
Commit	Line	Data
1da177e4 LT	1	#
	2	# Cryptographic API Configuration
	3	#
	4
2e290f43	5	menuconfig CRYPTO
1da177e4 LT	6	bool "Cryptographic API"
	7	help
	8	This option provides the core Cryptographic API.
	9
cce9e06d HX	10	if CRYPTO
	11
	12	config CRYPTO_ALGAPI
	13	tristate
	14	help
	15	This option provides the API for cryptographic algorithms.
	16
b5b7f088 HX	17	config CRYPTO_ABLKCIPHER
	18	tristate
	19	select CRYPTO_BLKCIPHER
	20
5cde0af2 HX	21	config CRYPTO_BLKCIPHER
	22	tristate
	23	select CRYPTO_ALGAPI
	24
055bcee3 HX	25	config CRYPTO_HASH
	26	tristate
	27	select CRYPTO_ALGAPI
	28
2b8c19db HX	29	config CRYPTO_MANAGER
	30	tristate "Cryptographic algorithm manager"
	31	select CRYPTO_ALGAPI
2b8c19db HX	32	help
	33	Create default cryptographic template instantiations such as
	34	cbc(aes).
	35
1da177e4	36	config CRYPTO_HMAC
8425165d	37	tristate "HMAC support"
0796ae06	38	select CRYPTO_HASH
43518407	39	select CRYPTO_MANAGER
1da177e4 LT	40	help
	41	HMAC: Keyed-Hashing for Message Authentication (RFC2104).
	42	This is required for IPSec.
	43
333b0d7e KM	44	config CRYPTO_XCBC
	45	tristate "XCBC support"
	46	depends on EXPERIMENTAL
	47	select CRYPTO_HASH
	48	select CRYPTO_MANAGER
	49	help
	50	XCBC: Keyed-Hashing with encryption algorithm
	51	http://www.ietf.org/rfc/rfc3566.txt
	52	http://csrc.nist.gov/encryption/modes/proposedmodes/
	53	xcbc-mac/xcbc-mac-spec.pdf
	54
1da177e4 LT	55	config CRYPTO_NULL
1da177e4 LT	56	tristate "Null algorithms"
cce9e06d	57	select CRYPTO_ALGAPI
1da177e4 LT	58	help
	59	These are 'Null' algorithms, used by IPsec, which do nothing.
	60
	61	config CRYPTO_MD4
	62	tristate "MD4 digest algorithm"
cce9e06d	63	select CRYPTO_ALGAPI
1da177e4 LT	64	help
	65	MD4 message digest algorithm (RFC1320).
	66
	67	config CRYPTO_MD5
	68	tristate "MD5 digest algorithm"
cce9e06d	69	select CRYPTO_ALGAPI
1da177e4 LT	70	help
	71	MD5 message digest algorithm (RFC1321).
	72
	73	config CRYPTO_SHA1
	74	tristate "SHA1 digest algorithm"
cce9e06d	75	select CRYPTO_ALGAPI
1da177e4 LT	76	help
	77	SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
	78
1da177e4 LT	79	config CRYPTO_SHA256
1da177e4 LT	80	tristate "SHA256 digest algorithm"
cce9e06d	81	select CRYPTO_ALGAPI
1da177e4 LT	82	help
	83	SHA256 secure hash standard (DFIPS 180-2).
	84
	85	This version of SHA implements a 256 bit hash with 128 bits of
	86	security against collision attacks.
	87
	88	config CRYPTO_SHA512
	89	tristate "SHA384 and SHA512 digest algorithms"
cce9e06d	90	select CRYPTO_ALGAPI
1da177e4 LT	91	help
	92	SHA512 secure hash standard (DFIPS 180-2).
	93
	94	This version of SHA implements a 512 bit hash with 256 bits of
	95	security against collision attacks.
	96
	97	This code also includes SHA-384, a 384 bit hash with 192 bits
	98	of security against collision attacks.
	99
	100	config CRYPTO_WP512
	101	tristate "Whirlpool digest algorithms"
cce9e06d	102	select CRYPTO_ALGAPI
1da177e4 LT	103	help
	104	Whirlpool hash algorithm 512, 384 and 256-bit hashes
	105
	106	Whirlpool-512 is part of the NESSIE cryptographic primitives.
	107	Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
	108
	109	See also:
	110	<http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
	111
	112	config CRYPTO_TGR192
	113	tristate "Tiger digest algorithms"
cce9e06d	114	select CRYPTO_ALGAPI
1da177e4 LT	115	help
	116	Tiger hash algorithm 192, 160 and 128-bit hashes
	117
	118	Tiger is a hash function optimized for 64-bit processors while
	119	still having decent performance on 32-bit processors.
	120	Tiger was developed by Ross Anderson and Eli Biham.
	121
	122	See also:
	123	<http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
	124
c494e070 RS	125	config CRYPTO_GF128MUL
	126	tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
	127	depends on EXPERIMENTAL
	128	help
	129	Efficient table driven implementation of multiplications in the
	130	field GF(2^128). This is needed by some cypher modes. This
	131	option will be selected automatically if you select such a
	132	cipher mode. Only select this option by hand if you expect to load
	133	an external module that requires these functions.
	134
db131ef9 HX	135	config CRYPTO_ECB
	136	tristate "ECB support"
	137	select CRYPTO_BLKCIPHER
43518407	138	select CRYPTO_MANAGER
db131ef9 HX	139	default m
	140	help
	141	ECB: Electronic CodeBook mode
	142	This is the simplest block cipher algorithm. It simply encrypts
	143	the input block by block.
	144
	145	config CRYPTO_CBC
	146	tristate "CBC support"
	147	select CRYPTO_BLKCIPHER
43518407	148	select CRYPTO_MANAGER
db131ef9 HX	149	default m
	150	help
	151	CBC: Cipher Block Chaining mode
	152	This block cipher algorithm is required for IPSec.
	153
91652be5 DH	154	config CRYPTO_PCBC
	155	tristate "PCBC support"
	156	select CRYPTO_BLKCIPHER
	157	select CRYPTO_MANAGER
	158	default m
	159	help
	160	PCBC: Propagating Cipher Block Chaining mode
	161	This block cipher algorithm is required for RxRPC.
	162
64470f1b RS	163	config CRYPTO_LRW
	164	tristate "LRW support (EXPERIMENTAL)"
	165	depends on EXPERIMENTAL
	166	select CRYPTO_BLKCIPHER
	167	select CRYPTO_MANAGER
	168	select CRYPTO_GF128MUL
	169	help
	170	LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
	171	narrow block cipher mode for dm-crypt. Use it with cipher
	172	specification string aes-lrw-benbi, the key must be 256, 320 or 384.
	173	The first 128, 192 or 256 bits in the key are used for AES and the
	174	rest is used to tie each cipher block to its logical position.
	175
124b53d0 HX	176	config CRYPTO_CRYPTD
	177	tristate "Software async crypto daemon"
	178	select CRYPTO_ABLKCIPHER
	179	select CRYPTO_MANAGER
	180	help
	181	This is a generic software asynchronous crypto daemon that
	182	converts an arbitrary synchronous software crypto algorithm
	183	into an asynchronous algorithm that executes in a kernel thread.
	184
1da177e4 LT	185	config CRYPTO_DES
1da177e4 LT	186	tristate "DES and Triple DES EDE cipher algorithms"
cce9e06d	187	select CRYPTO_ALGAPI
1da177e4 LT	188	help
	189	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	190
90831639 DH	191	config CRYPTO_FCRYPT
	192	tristate "FCrypt cipher algorithm"
	193	select CRYPTO_ALGAPI
	194	select CRYPTO_BLKCIPHER
	195	help
	196	FCrypt algorithm used by RxRPC.
	197
1da177e4 LT	198	config CRYPTO_BLOWFISH
1da177e4 LT	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
3dde6ad8	272	variant of Serpent for compatibility with old kerneli.org code.
1da177e4 LT	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
	339	config CRYPTO_CAST5
	340	tristate "CAST5 (CAST-128) cipher algorithm"
cce9e06d	341	select CRYPTO_ALGAPI
1da177e4 LT	342	help
	343	The CAST5 encryption algorithm (synonymous with CAST-128) is
	344	described in RFC2144.
	345
	346	config CRYPTO_CAST6
	347	tristate "CAST6 (CAST-256) cipher algorithm"
cce9e06d	348	select CRYPTO_ALGAPI
1da177e4 LT	349	help
	350	The CAST6 encryption algorithm (synonymous with CAST-256) is
	351	described in RFC2612.
	352
	353	config CRYPTO_TEA
fb4f10ed	354	tristate "TEA, XTEA and XETA cipher algorithms"
cce9e06d	355	select CRYPTO_ALGAPI
1da177e4 LT	356	help
	357	TEA cipher algorithm.
	358
	359	Tiny Encryption Algorithm is a simple cipher that uses
	360	many rounds for security. It is very fast and uses
	361	little memory.
	362
	363	Xtendend Tiny Encryption Algorithm is a modification to
	364	the TEA algorithm to address a potential key weakness
	365	in the TEA algorithm.
	366
fb4f10ed AG	367	Xtendend Encryption Tiny Algorithm is a mis-implementation
	368	of the XTEA algorithm for compatibility purposes.
	369
1da177e4 LT	370	config CRYPTO_ARC4
1da177e4 LT	371	tristate "ARC4 cipher algorithm"
cce9e06d	372	select CRYPTO_ALGAPI
1da177e4 LT	373	help
	374	ARC4 cipher algorithm.
	375
	376	ARC4 is a stream cipher using keys ranging from 8 bits to 2048
	377	bits in length. This algorithm is required for driver-based
	378	WEP, but it should not be for other purposes because of the
	379	weakness of the algorithm.
	380
	381	config CRYPTO_KHAZAD
	382	tristate "Khazad cipher algorithm"
cce9e06d	383	select CRYPTO_ALGAPI
1da177e4 LT	384	help
	385	Khazad cipher algorithm.
	386
	387	Khazad was a finalist in the initial NESSIE competition. It is
	388	an algorithm optimized for 64-bit processors with good performance
	389	on 32-bit processors. Khazad uses an 128 bit key size.
	390
	391	See also:
	392	<http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
	393
	394	config CRYPTO_ANUBIS
	395	tristate "Anubis cipher algorithm"
cce9e06d	396	select CRYPTO_ALGAPI
1da177e4 LT	397	help
	398	Anubis cipher algorithm.
	399
	400	Anubis is a variable key length cipher which can use keys from
	401	128 bits to 320 bits in length. It was evaluated as a entrant
	402	in the NESSIE competition.
	403
	404	See also:
	405	<https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
	406	<http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
	407
	408
	409	config CRYPTO_DEFLATE
	410	tristate "Deflate compression algorithm"
cce9e06d	411	select CRYPTO_ALGAPI
1da177e4 LT	412	select ZLIB_INFLATE
	413	select ZLIB_DEFLATE
	414	help
	415	This is the Deflate algorithm (RFC1951), specified for use in
	416	IPSec with the IPCOMP protocol (RFC3173, RFC2394).
	417
	418	You will most probably want this if using IPSec.
	419
	420	config CRYPTO_MICHAEL_MIC
	421	tristate "Michael MIC keyed digest algorithm"
cce9e06d	422	select CRYPTO_ALGAPI
1da177e4 LT	423	help
	424	Michael MIC is used for message integrity protection in TKIP
	425	(IEEE 802.11i). This algorithm is required for TKIP, but it
	426	should not be used for other purposes because of the weakness
	427	of the algorithm.
	428
	429	config CRYPTO_CRC32C
	430	tristate "CRC32c CRC algorithm"
cce9e06d	431	select CRYPTO_ALGAPI
1da177e4 LT	432	select LIBCRC32C
	433	help
	434	Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
	435	by iSCSI for header and data digests and by others.
	436	See Castagnoli93. This implementation uses lib/libcrc32c.
	437	Module will be crc32c.
	438
04ac7db3 NT	439	config CRYPTO_CAMELLIA
	440	tristate "Camellia cipher algorithms"
	441	depends on CRYPTO
	442	select CRYPTO_ALGAPI
	443	help
	444	Camellia cipher algorithms module.
	445
	446	Camellia is a symmetric key block cipher developed jointly
	447	at NTT and Mitsubishi Electric Corporation.
	448
	449	The Camellia specifies three key sizes: 128, 192 and 256 bits.
	450
	451	See also:
	452	<https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>
	453
1da177e4 LT	454	config CRYPTO_TEST
1da177e4 LT	455	tristate "Testing module"
cce9e06d HX	456	depends on m
cce9e06d HX	457	select CRYPTO_ALGAPI
1da177e4 LT	458	help
	459	Quick & dirty crypto test module.
	460
	461	source "drivers/crypto/Kconfig"
1da177e4	462
cce9e06d	463	endif # if CRYPTO