[mirror_ubuntu-eoan-kernel.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_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_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
91652be5 DH	171	config CRYPTO_PCBC
	172	tristate "PCBC support"
	173	select CRYPTO_BLKCIPHER
	174	select CRYPTO_MANAGER
	175	default m
	176	help
	177	PCBC: Propagating Cipher Block Chaining mode
	178	This block cipher algorithm is required for RxRPC.
	179
64470f1b RS	180	config CRYPTO_LRW
	181	tristate "LRW support (EXPERIMENTAL)"
	182	depends on EXPERIMENTAL
	183	select CRYPTO_BLKCIPHER
	184	select CRYPTO_MANAGER
	185	select CRYPTO_GF128MUL
	186	help
	187	LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
	188	narrow block cipher mode for dm-crypt. Use it with cipher
	189	specification string aes-lrw-benbi, the key must be 256, 320 or 384.
	190	The first 128, 192 or 256 bits in the key are used for AES and the
	191	rest is used to tie each cipher block to its logical position.
	192
1da177e4 LT	193	config CRYPTO_DES
1da177e4 LT	194	tristate "DES and Triple DES EDE cipher algorithms"
cce9e06d	195	select CRYPTO_ALGAPI
1da177e4 LT	196	help
	197	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	198
c1e26e1e JG	199	config CRYPTO_DES_S390
c1e26e1e JG	200	tristate "DES and Triple DES cipher algorithms (s390)"
cce9e06d HX	201	depends on S390
cce9e06d HX	202	select CRYPTO_ALGAPI
a9e62fad	203	select CRYPTO_BLKCIPHER
1da177e4 LT	204	help
	205	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	206
	207	config CRYPTO_BLOWFISH
	208	tristate "Blowfish cipher algorithm"
cce9e06d	209	select CRYPTO_ALGAPI
1da177e4 LT	210	help
	211	Blowfish cipher algorithm, by Bruce Schneier.
	212
	213	This is a variable key length cipher which can use keys from 32
	214	bits to 448 bits in length. It's fast, simple and specifically
	215	designed for use on "large microprocessors".
	216
	217	See also:
	218	<http://www.schneier.com/blowfish.html>
	219
	220	config CRYPTO_TWOFISH
	221	tristate "Twofish cipher algorithm"
cce9e06d	222	select CRYPTO_ALGAPI
2729bb42	223	select CRYPTO_TWOFISH_COMMON
1da177e4 LT	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
2729bb42 JF	235	config CRYPTO_TWOFISH_COMMON
2729bb42 JF	236	tristate
2729bb42 JF	237	help
	238	Common parts of the Twofish cipher algorithm shared by the
	239	generic c and the assembler implementations.
	240
b9f535ff JF	241	config CRYPTO_TWOFISH_586
b9f535ff JF	242	tristate "Twofish cipher algorithms (i586)"
cce9e06d HX	243	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	244	select CRYPTO_ALGAPI
b9f535ff JF	245	select CRYPTO_TWOFISH_COMMON
	246	help
	247	Twofish cipher algorithm.
	248
	249	Twofish was submitted as an AES (Advanced Encryption Standard)
	250	candidate cipher by researchers at CounterPane Systems. It is a
	251	16 round block cipher supporting key sizes of 128, 192, and 256
	252	bits.
	253
	254	See also:
	255	<http://www.schneier.com/twofish.html>
	256
eaf44088 JF	257	config CRYPTO_TWOFISH_X86_64
eaf44088 JF	258	tristate "Twofish cipher algorithm (x86_64)"
cce9e06d HX	259	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	260	select CRYPTO_ALGAPI
eaf44088 JF	261	select CRYPTO_TWOFISH_COMMON
	262	help
	263	Twofish cipher algorithm (x86_64).
	264
	265	Twofish was submitted as an AES (Advanced Encryption Standard)
	266	candidate cipher by researchers at CounterPane Systems. It is a
	267	16 round block cipher supporting key sizes of 128, 192, and 256
	268	bits.
	269
	270	See also:
	271	<http://www.schneier.com/twofish.html>
	272
1da177e4 LT	273	config CRYPTO_SERPENT
1da177e4 LT	274	tristate "Serpent cipher algorithm"
cce9e06d	275	select CRYPTO_ALGAPI
1da177e4 LT	276	help
	277	Serpent cipher algorithm, by Anderson, Biham & Knudsen.
	278
	279	Keys are allowed to be from 0 to 256 bits in length, in steps
	280	of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
	281	variant of Serpent for compatibility with old kerneli code.
	282
	283	See also:
	284	<http://www.cl.cam.ac.uk/~rja14/serpent.html>
	285
	286	config CRYPTO_AES
	287	tristate "AES cipher algorithms"
cce9e06d	288	select CRYPTO_ALGAPI
1da177e4 LT	289	help
	290	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	291	algorithm.
	292
	293	Rijndael appears to be consistently a very good performer in
	294	both hardware and software across a wide range of computing
	295	environments regardless of its use in feedback or non-feedback
	296	modes. Its key setup time is excellent, and its key agility is
	297	good. Rijndael's very low memory requirements make it very well
	298	suited for restricted-space environments, in which it also
	299	demonstrates excellent performance. Rijndael's operations are
	300	among the easiest to defend against power and timing attacks.
	301
	302	The AES specifies three key sizes: 128, 192 and 256 bits
	303
	304	See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
	305
	306	config CRYPTO_AES_586
	307	tristate "AES cipher algorithms (i586)"
cce9e06d HX	308	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	309	select CRYPTO_ALGAPI
1da177e4 LT	310	help
	311	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	312	algorithm.
	313
	314	Rijndael appears to be consistently a very good performer in
	315	both hardware and software across a wide range of computing
	316	environments regardless of its use in feedback or non-feedback
	317	modes. Its key setup time is excellent, and its key agility is
	318	good. Rijndael's very low memory requirements make it very well
	319	suited for restricted-space environments, in which it also
	320	demonstrates excellent performance. Rijndael's operations are
	321	among the easiest to defend against power and timing attacks.
	322
	323	The AES specifies three key sizes: 128, 192 and 256 bits
a2a892a2 AS	324
	325	See <http://csrc.nist.gov/encryption/aes/> for more information.
	326
	327	config CRYPTO_AES_X86_64
	328	tristate "AES cipher algorithms (x86_64)"
cce9e06d HX	329	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	330	select CRYPTO_ALGAPI
a2a892a2 AS	331	help
	332	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	333	algorithm.
	334
	335	Rijndael appears to be consistently a very good performer in
	336	both hardware and software across a wide range of computing
	337	environments regardless of its use in feedback or non-feedback
	338	modes. Its key setup time is excellent, and its key agility is
	339	good. Rijndael's very low memory requirements make it very well
	340	suited for restricted-space environments, in which it also
	341	demonstrates excellent performance. Rijndael's operations are
	342	among the easiest to defend against power and timing attacks.
	343
	344	The AES specifies three key sizes: 128, 192 and 256 bits
1da177e4 LT	345
	346	See <http://csrc.nist.gov/encryption/aes/> for more information.
	347
bf754ae8 JG	348	config CRYPTO_AES_S390
bf754ae8 JG	349	tristate "AES cipher algorithms (s390)"
cce9e06d HX	350	depends on S390
cce9e06d HX	351	select CRYPTO_ALGAPI
a9e62fad	352	select CRYPTO_BLKCIPHER
bf754ae8 JG	353	help
	354	This is the s390 hardware accelerated implementation of the
	355	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	356	algorithm.
	357
	358	Rijndael appears to be consistently a very good performer in
	359	both hardware and software across a wide range of computing
	360	environments regardless of its use in feedback or non-feedback
	361	modes. Its key setup time is excellent, and its key agility is
	362	good. Rijndael's very low memory requirements make it very well
	363	suited for restricted-space environments, in which it also
	364	demonstrates excellent performance. Rijndael's operations are
	365	among the easiest to defend against power and timing attacks.
	366
	367	On s390 the System z9-109 currently only supports the key size
	368	of 128 bit.
	369
1da177e4 LT	370	config CRYPTO_CAST5
1da177e4 LT	371	tristate "CAST5 (CAST-128) cipher algorithm"
cce9e06d	372	select CRYPTO_ALGAPI
1da177e4 LT	373	help
	374	The CAST5 encryption algorithm (synonymous with CAST-128) is
	375	described in RFC2144.
	376
	377	config CRYPTO_CAST6
	378	tristate "CAST6 (CAST-256) cipher algorithm"
cce9e06d	379	select CRYPTO_ALGAPI
1da177e4 LT	380	help
	381	The CAST6 encryption algorithm (synonymous with CAST-256) is
	382	described in RFC2612.
	383
	384	config CRYPTO_TEA
fb4f10ed	385	tristate "TEA, XTEA and XETA cipher algorithms"
cce9e06d	386	select CRYPTO_ALGAPI
1da177e4 LT	387	help
	388	TEA cipher algorithm.
	389
	390	Tiny Encryption Algorithm is a simple cipher that uses
	391	many rounds for security. It is very fast and uses
	392	little memory.
	393
	394	Xtendend Tiny Encryption Algorithm is a modification to
	395	the TEA algorithm to address a potential key weakness
	396	in the TEA algorithm.
	397
fb4f10ed AG	398	Xtendend Encryption Tiny Algorithm is a mis-implementation
	399	of the XTEA algorithm for compatibility purposes.
	400
1da177e4 LT	401	config CRYPTO_ARC4
1da177e4 LT	402	tristate "ARC4 cipher algorithm"
cce9e06d	403	select CRYPTO_ALGAPI
1da177e4 LT	404	help
	405	ARC4 cipher algorithm.
	406
	407	ARC4 is a stream cipher using keys ranging from 8 bits to 2048
	408	bits in length. This algorithm is required for driver-based
	409	WEP, but it should not be for other purposes because of the
	410	weakness of the algorithm.
	411
	412	config CRYPTO_KHAZAD
	413	tristate "Khazad cipher algorithm"
cce9e06d	414	select CRYPTO_ALGAPI
1da177e4 LT	415	help
	416	Khazad cipher algorithm.
	417
	418	Khazad was a finalist in the initial NESSIE competition. It is
	419	an algorithm optimized for 64-bit processors with good performance
	420	on 32-bit processors. Khazad uses an 128 bit key size.
	421
	422	See also:
	423	<http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
	424
	425	config CRYPTO_ANUBIS
	426	tristate "Anubis cipher algorithm"
cce9e06d	427	select CRYPTO_ALGAPI
1da177e4 LT	428	help
	429	Anubis cipher algorithm.
	430
	431	Anubis is a variable key length cipher which can use keys from
	432	128 bits to 320 bits in length. It was evaluated as a entrant
	433	in the NESSIE competition.
	434
	435	See also:
	436	<https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
	437	<http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
	438
	439
	440	config CRYPTO_DEFLATE
	441	tristate "Deflate compression algorithm"
cce9e06d	442	select CRYPTO_ALGAPI
1da177e4 LT	443	select ZLIB_INFLATE
	444	select ZLIB_DEFLATE
	445	help
	446	This is the Deflate algorithm (RFC1951), specified for use in
	447	IPSec with the IPCOMP protocol (RFC3173, RFC2394).
	448
	449	You will most probably want this if using IPSec.
	450
	451	config CRYPTO_MICHAEL_MIC
	452	tristate "Michael MIC keyed digest algorithm"
cce9e06d	453	select CRYPTO_ALGAPI
1da177e4 LT	454	help
	455	Michael MIC is used for message integrity protection in TKIP
	456	(IEEE 802.11i). This algorithm is required for TKIP, but it
	457	should not be used for other purposes because of the weakness
	458	of the algorithm.
	459
	460	config CRYPTO_CRC32C
	461	tristate "CRC32c CRC algorithm"
cce9e06d	462	select CRYPTO_ALGAPI
1da177e4 LT	463	select LIBCRC32C
	464	help
	465	Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
	466	by iSCSI for header and data digests and by others.
	467	See Castagnoli93. This implementation uses lib/libcrc32c.
	468	Module will be crc32c.
	469
	470	config CRYPTO_TEST
	471	tristate "Testing module"
cce9e06d HX	472	depends on m
cce9e06d HX	473	select CRYPTO_ALGAPI
1da177e4 LT	474	help
	475	Quick & dirty crypto test module.
	476
	477	source "drivers/crypto/Kconfig"
1da177e4	478
cce9e06d HX	479	endif # if CRYPTO
	480
	481	endmenu