## Cryptographic API Configuration# menu "Cryptographic options" config CRYPTO	bool "Cryptographic API"	help	  This option provides the core Cryptographic API. config CRYPTO_HMAC	bool "HMAC support"	depends on CRYPTO	help	  HMAC: Keyed-Hashing for Message Authentication (RFC2104).	  This is required for IPSec. config CRYPTO_NULL	tristate "Null algorithms"	depends on CRYPTO	help	  These are 'Null' algorithms, used by IPsec, which do nothing. config CRYPTO_MD4	tristate "MD4 digest algorithm"	depends on CRYPTO	help	  MD4 message digest algorithm (RFC1320). config CRYPTO_MD5	tristate "MD5 digest algorithm"	depends on CRYPTO	help	  MD5 message digest algorithm (RFC1321). config CRYPTO_SHA1	tristate "SHA1 digest algorithm"	depends on CRYPTO	help	  SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2). config CRYPTO_SHA1_S390	tristate "SHA1 digest algorithm (s390)"	depends on CRYPTO && S390	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"	depends on CRYPTO	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 CRYPTO && S390	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"	depends on CRYPTO	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"	depends on CRYPTO	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"	depends on CRYPTO	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"	depends on CRYPTO	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 CRYPTO && S390	help	  DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3). config CRYPTO_BLOWFISH	tristate "Blowfish cipher algorithm"	depends on CRYPTO	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"	depends on CRYPTO	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_SERPENT	tristate "Serpent cipher algorithm"	depends on CRYPTO	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"	depends on CRYPTO	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 CRYPTO && ((X86 || UML_X86) && !64BIT)	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 CRYPTO && ((X86 || UML_X86) && 64BIT)	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 CRYPTO && S390	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"	depends on CRYPTO	help	  The CAST5 encryption algorithm (synonymous with CAST-128) is	  described in RFC2144. config CRYPTO_CAST6	tristate "CAST6 (CAST-256) cipher algorithm"	depends on CRYPTO	help	  The CAST6 encryption algorithm (synonymous with CAST-256) is	  described in RFC2612. config CRYPTO_TEA	tristate "TEA, XTEA and XETA cipher algorithms"	depends on CRYPTO	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"	depends on CRYPTO	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"	depends on CRYPTO	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"	depends on CRYPTO	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"	depends on CRYPTO	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"	depends on CRYPTO	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"	depends on CRYPTO	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 CRYPTO	help	  Quick & dirty crypto test module. source "drivers/crypto/Kconfig"endmenu