[mirror_ubuntu-bionic-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_MANAGER
	tristate "Cryptographic algorithm manager"
	select CRYPTO_ALGAPI
	default m
	help
	  Create default cryptographic template instantiations such as
	  cbc(aes).

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

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_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
	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
	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
2b8c19db HX	19	config CRYPTO_MANAGER
	20	tristate "Cryptographic algorithm manager"
	21	select CRYPTO_ALGAPI
	22	default m
	23	help
	24	Create default cryptographic template instantiations such as
	25	cbc(aes).
	26
1da177e4 LT	27	config CRYPTO_HMAC
1da177e4 LT	28	bool "HMAC support"
1da177e4 LT	29	help
	30	HMAC: Keyed-Hashing for Message Authentication (RFC2104).
	31	This is required for IPSec.
	32
	33	config CRYPTO_NULL
	34	tristate "Null algorithms"
cce9e06d	35	select CRYPTO_ALGAPI
1da177e4 LT	36	help
	37	These are 'Null' algorithms, used by IPsec, which do nothing.
	38
	39	config CRYPTO_MD4
	40	tristate "MD4 digest algorithm"
cce9e06d	41	select CRYPTO_ALGAPI
1da177e4 LT	42	help
	43	MD4 message digest algorithm (RFC1320).
	44
	45	config CRYPTO_MD5
	46	tristate "MD5 digest algorithm"
cce9e06d	47	select CRYPTO_ALGAPI
1da177e4 LT	48	help
	49	MD5 message digest algorithm (RFC1321).
	50
	51	config CRYPTO_SHA1
	52	tristate "SHA1 digest algorithm"
cce9e06d	53	select CRYPTO_ALGAPI
1da177e4 LT	54	help
	55	SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
	56
c1e26e1e JG	57	config CRYPTO_SHA1_S390
c1e26e1e JG	58	tristate "SHA1 digest algorithm (s390)"
cce9e06d HX	59	depends on S390
cce9e06d HX	60	select CRYPTO_ALGAPI
1da177e4	61	help
0a497c17	62	This is the s390 hardware accelerated implementation of the
1da177e4 LT	63	SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
	64
	65	config CRYPTO_SHA256
	66	tristate "SHA256 digest algorithm"
cce9e06d	67	select CRYPTO_ALGAPI
1da177e4 LT	68	help
	69	SHA256 secure hash standard (DFIPS 180-2).
	70
	71	This version of SHA implements a 256 bit hash with 128 bits of
	72	security against collision attacks.
	73
0a497c17 JG	74	config CRYPTO_SHA256_S390
0a497c17 JG	75	tristate "SHA256 digest algorithm (s390)"
cce9e06d HX	76	depends on S390
cce9e06d HX	77	select CRYPTO_ALGAPI
0a497c17 JG	78	help
	79	This is the s390 hardware accelerated implementation of the
	80	SHA256 secure hash standard (DFIPS 180-2).
	81
	82	This version of SHA implements a 256 bit hash with 128 bits of
	83	security against collision attacks.
	84
1da177e4 LT	85	config CRYPTO_SHA512
1da177e4 LT	86	tristate "SHA384 and SHA512 digest algorithms"
cce9e06d	87	select CRYPTO_ALGAPI
1da177e4 LT	88	help
	89	SHA512 secure hash standard (DFIPS 180-2).
	90
	91	This version of SHA implements a 512 bit hash with 256 bits of
	92	security against collision attacks.
	93
	94	This code also includes SHA-384, a 384 bit hash with 192 bits
	95	of security against collision attacks.
	96
	97	config CRYPTO_WP512
	98	tristate "Whirlpool digest algorithms"
cce9e06d	99	select CRYPTO_ALGAPI
1da177e4 LT	100	help
	101	Whirlpool hash algorithm 512, 384 and 256-bit hashes
	102
	103	Whirlpool-512 is part of the NESSIE cryptographic primitives.
	104	Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard
	105
	106	See also:
	107	<http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
	108
	109	config CRYPTO_TGR192
	110	tristate "Tiger digest algorithms"
cce9e06d	111	select CRYPTO_ALGAPI
1da177e4 LT	112	help
	113	Tiger hash algorithm 192, 160 and 128-bit hashes
	114
	115	Tiger is a hash function optimized for 64-bit processors while
	116	still having decent performance on 32-bit processors.
	117	Tiger was developed by Ross Anderson and Eli Biham.
	118
	119	See also:
	120	<http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
	121
	122	config CRYPTO_DES
	123	tristate "DES and Triple DES EDE cipher algorithms"
cce9e06d	124	select CRYPTO_ALGAPI
1da177e4 LT	125	help
	126	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	127
c1e26e1e JG	128	config CRYPTO_DES_S390
c1e26e1e JG	129	tristate "DES and Triple DES cipher algorithms (s390)"
cce9e06d HX	130	depends on S390
cce9e06d HX	131	select CRYPTO_ALGAPI
1da177e4 LT	132	help
	133	DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
	134
	135	config CRYPTO_BLOWFISH
	136	tristate "Blowfish cipher algorithm"
cce9e06d	137	select CRYPTO_ALGAPI
1da177e4 LT	138	help
	139	Blowfish cipher algorithm, by Bruce Schneier.
	140
	141	This is a variable key length cipher which can use keys from 32
	142	bits to 448 bits in length. It's fast, simple and specifically
	143	designed for use on "large microprocessors".
	144
	145	See also:
	146	<http://www.schneier.com/blowfish.html>
	147
	148	config CRYPTO_TWOFISH
	149	tristate "Twofish cipher algorithm"
cce9e06d	150	select CRYPTO_ALGAPI
2729bb42	151	select CRYPTO_TWOFISH_COMMON
1da177e4 LT	152	help
	153	Twofish cipher algorithm.
	154
	155	Twofish was submitted as an AES (Advanced Encryption Standard)
	156	candidate cipher by researchers at CounterPane Systems. It is a
	157	16 round block cipher supporting key sizes of 128, 192, and 256
	158	bits.
	159
	160	See also:
	161	<http://www.schneier.com/twofish.html>
	162
2729bb42 JF	163	config CRYPTO_TWOFISH_COMMON
2729bb42 JF	164	tristate
2729bb42 JF	165	help
	166	Common parts of the Twofish cipher algorithm shared by the
	167	generic c and the assembler implementations.
	168
b9f535ff JF	169	config CRYPTO_TWOFISH_586
b9f535ff JF	170	tristate "Twofish cipher algorithms (i586)"
cce9e06d HX	171	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	172	select CRYPTO_ALGAPI
b9f535ff JF	173	select CRYPTO_TWOFISH_COMMON
	174	help
	175	Twofish cipher algorithm.
	176
	177	Twofish was submitted as an AES (Advanced Encryption Standard)
	178	candidate cipher by researchers at CounterPane Systems. It is a
	179	16 round block cipher supporting key sizes of 128, 192, and 256
	180	bits.
	181
	182	See also:
	183	<http://www.schneier.com/twofish.html>
	184
eaf44088 JF	185	config CRYPTO_TWOFISH_X86_64
eaf44088 JF	186	tristate "Twofish cipher algorithm (x86_64)"
cce9e06d HX	187	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	188	select CRYPTO_ALGAPI
eaf44088 JF	189	select CRYPTO_TWOFISH_COMMON
	190	help
	191	Twofish cipher algorithm (x86_64).
	192
	193	Twofish was submitted as an AES (Advanced Encryption Standard)
	194	candidate cipher by researchers at CounterPane Systems. It is a
	195	16 round block cipher supporting key sizes of 128, 192, and 256
	196	bits.
	197
	198	See also:
	199	<http://www.schneier.com/twofish.html>
	200
1da177e4 LT	201	config CRYPTO_SERPENT
1da177e4 LT	202	tristate "Serpent cipher algorithm"
cce9e06d	203	select CRYPTO_ALGAPI
1da177e4 LT	204	help
	205	Serpent cipher algorithm, by Anderson, Biham & Knudsen.
	206
	207	Keys are allowed to be from 0 to 256 bits in length, in steps
	208	of 8 bits. Also includes the 'Tnepres' algorithm, a reversed
	209	variant of Serpent for compatibility with old kerneli code.
	210
	211	See also:
	212	<http://www.cl.cam.ac.uk/~rja14/serpent.html>
	213
	214	config CRYPTO_AES
	215	tristate "AES cipher algorithms"
cce9e06d	216	select CRYPTO_ALGAPI
1da177e4 LT	217	help
	218	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	219	algorithm.
	220
	221	Rijndael appears to be consistently a very good performer in
	222	both hardware and software across a wide range of computing
	223	environments regardless of its use in feedback or non-feedback
	224	modes. Its key setup time is excellent, and its key agility is
	225	good. Rijndael's very low memory requirements make it very well
	226	suited for restricted-space environments, in which it also
	227	demonstrates excellent performance. Rijndael's operations are
	228	among the easiest to defend against power and timing attacks.
	229
	230	The AES specifies three key sizes: 128, 192 and 256 bits
	231
	232	See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
	233
	234	config CRYPTO_AES_586
	235	tristate "AES cipher algorithms (i586)"
cce9e06d HX	236	depends on (X86 \|\| UML_X86) && !64BIT
cce9e06d HX	237	select CRYPTO_ALGAPI
1da177e4 LT	238	help
	239	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	240	algorithm.
	241
	242	Rijndael appears to be consistently a very good performer in
	243	both hardware and software across a wide range of computing
	244	environments regardless of its use in feedback or non-feedback
	245	modes. Its key setup time is excellent, and its key agility is
	246	good. Rijndael's very low memory requirements make it very well
	247	suited for restricted-space environments, in which it also
	248	demonstrates excellent performance. Rijndael's operations are
	249	among the easiest to defend against power and timing attacks.
	250
	251	The AES specifies three key sizes: 128, 192 and 256 bits
a2a892a2 AS	252
	253	See <http://csrc.nist.gov/encryption/aes/> for more information.
	254
	255	config CRYPTO_AES_X86_64
	256	tristate "AES cipher algorithms (x86_64)"
cce9e06d HX	257	depends on (X86 \|\| UML_X86) && 64BIT
cce9e06d HX	258	select CRYPTO_ALGAPI
a2a892a2 AS	259	help
	260	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	261	algorithm.
	262
	263	Rijndael appears to be consistently a very good performer in
	264	both hardware and software across a wide range of computing
	265	environments regardless of its use in feedback or non-feedback
	266	modes. Its key setup time is excellent, and its key agility is
	267	good. Rijndael's very low memory requirements make it very well
	268	suited for restricted-space environments, in which it also
	269	demonstrates excellent performance. Rijndael's operations are
	270	among the easiest to defend against power and timing attacks.
	271
	272	The AES specifies three key sizes: 128, 192 and 256 bits
1da177e4 LT	273
	274	See <http://csrc.nist.gov/encryption/aes/> for more information.
	275
bf754ae8 JG	276	config CRYPTO_AES_S390
bf754ae8 JG	277	tristate "AES cipher algorithms (s390)"
cce9e06d HX	278	depends on S390
cce9e06d HX	279	select CRYPTO_ALGAPI
bf754ae8 JG	280	help
	281	This is the s390 hardware accelerated implementation of the
	282	AES cipher algorithms (FIPS-197). AES uses the Rijndael
	283	algorithm.
	284
	285	Rijndael appears to be consistently a very good performer in
	286	both hardware and software across a wide range of computing
	287	environments regardless of its use in feedback or non-feedback
	288	modes. Its key setup time is excellent, and its key agility is
	289	good. Rijndael's very low memory requirements make it very well
	290	suited for restricted-space environments, in which it also
	291	demonstrates excellent performance. Rijndael's operations are
	292	among the easiest to defend against power and timing attacks.
	293
	294	On s390 the System z9-109 currently only supports the key size
	295	of 128 bit.
	296
1da177e4 LT	297	config CRYPTO_CAST5
1da177e4 LT	298	tristate "CAST5 (CAST-128) cipher algorithm"
cce9e06d	299	select CRYPTO_ALGAPI
1da177e4 LT	300	help
	301	The CAST5 encryption algorithm (synonymous with CAST-128) is
	302	described in RFC2144.
	303
	304	config CRYPTO_CAST6
	305	tristate "CAST6 (CAST-256) cipher algorithm"
cce9e06d	306	select CRYPTO_ALGAPI
1da177e4 LT	307	help
	308	The CAST6 encryption algorithm (synonymous with CAST-256) is
	309	described in RFC2612.
	310
	311	config CRYPTO_TEA
fb4f10ed	312	tristate "TEA, XTEA and XETA cipher algorithms"
cce9e06d	313	select CRYPTO_ALGAPI
1da177e4 LT	314	help
	315	TEA cipher algorithm.
	316
	317	Tiny Encryption Algorithm is a simple cipher that uses
	318	many rounds for security. It is very fast and uses
	319	little memory.
	320
	321	Xtendend Tiny Encryption Algorithm is a modification to
	322	the TEA algorithm to address a potential key weakness
	323	in the TEA algorithm.
	324
fb4f10ed AG	325	Xtendend Encryption Tiny Algorithm is a mis-implementation
	326	of the XTEA algorithm for compatibility purposes.
	327
1da177e4 LT	328	config CRYPTO_ARC4
1da177e4 LT	329	tristate "ARC4 cipher algorithm"
cce9e06d	330	select CRYPTO_ALGAPI
1da177e4 LT	331	help
	332	ARC4 cipher algorithm.
	333
	334	ARC4 is a stream cipher using keys ranging from 8 bits to 2048
	335	bits in length. This algorithm is required for driver-based
	336	WEP, but it should not be for other purposes because of the
	337	weakness of the algorithm.
	338
	339	config CRYPTO_KHAZAD
	340	tristate "Khazad cipher algorithm"
cce9e06d	341	select CRYPTO_ALGAPI
1da177e4 LT	342	help
	343	Khazad cipher algorithm.
	344
	345	Khazad was a finalist in the initial NESSIE competition. It is
	346	an algorithm optimized for 64-bit processors with good performance
	347	on 32-bit processors. Khazad uses an 128 bit key size.
	348
	349	See also:
	350	<http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
	351
	352	config CRYPTO_ANUBIS
	353	tristate "Anubis cipher algorithm"
cce9e06d	354	select CRYPTO_ALGAPI
1da177e4 LT	355	help
	356	Anubis cipher algorithm.
	357
	358	Anubis is a variable key length cipher which can use keys from
	359	128 bits to 320 bits in length. It was evaluated as a entrant
	360	in the NESSIE competition.
	361
	362	See also:
	363	<https://www.cosic.esat.kuleuven.ac.be/nessie/reports/>
	364	<http://planeta.terra.com.br/informatica/paulobarreto/AnubisPage.html>
	365
	366
	367	config CRYPTO_DEFLATE
	368	tristate "Deflate compression algorithm"
cce9e06d	369	select CRYPTO_ALGAPI
1da177e4 LT	370	select ZLIB_INFLATE
	371	select ZLIB_DEFLATE
	372	help
	373	This is the Deflate algorithm (RFC1951), specified for use in
	374	IPSec with the IPCOMP protocol (RFC3173, RFC2394).
	375
	376	You will most probably want this if using IPSec.
	377
	378	config CRYPTO_MICHAEL_MIC
	379	tristate "Michael MIC keyed digest algorithm"
cce9e06d	380	select CRYPTO_ALGAPI
1da177e4 LT	381	help
	382	Michael MIC is used for message integrity protection in TKIP
	383	(IEEE 802.11i). This algorithm is required for TKIP, but it
	384	should not be used for other purposes because of the weakness
	385	of the algorithm.
	386
	387	config CRYPTO_CRC32C
	388	tristate "CRC32c CRC algorithm"
cce9e06d	389	select CRYPTO_ALGAPI
1da177e4 LT	390	select LIBCRC32C
	391	help
	392	Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
	393	by iSCSI for header and data digests and by others.
	394	See Castagnoli93. This implementation uses lib/libcrc32c.
	395	Module will be crc32c.
	396
	397	config CRYPTO_TEST
	398	tristate "Testing module"
cce9e06d HX	399	depends on m
cce9e06d HX	400	select CRYPTO_ALGAPI
1da177e4 LT	401	help
	402	Quick & dirty crypto test module.
	403
	404	source "drivers/crypto/Kconfig"
1da177e4	405
cce9e06d HX	406	endif # if CRYPTO
	407
	408	endmenu