#
-# Cryptographic API Configuration
+# Generic algorithms support
#
+config XOR_BLOCKS
+ tristate
-menu "Cryptographic options"
+#
+# async_tx api: hardware offloaded memory transfer/transform support
+#
+source "crypto/async_tx/Kconfig"
-config CRYPTO
- bool "Cryptographic API"
+#
+# Cryptographic API Configuration
+#
+menuconfig CRYPTO
+ tristate "Cryptographic API"
help
This option provides the core Cryptographic API.
if CRYPTO
+comment "Crypto core or helper"
+
+config CRYPTO_FIPS
+ bool "FIPS 200 compliance"
+ help
+ This options enables the fips boot option which is
+ required if you want to system to operate in a FIPS 200
+ certification. You should say no unless you know what
+ this is.
+
config CRYPTO_ALGAPI
tristate
+ select CRYPTO_ALGAPI2
help
This option provides the API for cryptographic algorithms.
+config CRYPTO_ALGAPI2
+ tristate
+
+config CRYPTO_AEAD
+ tristate
+ select CRYPTO_AEAD2
+ select CRYPTO_ALGAPI
+
+config CRYPTO_AEAD2
+ tristate
+ select CRYPTO_ALGAPI2
+
config CRYPTO_BLKCIPHER
tristate
+ select CRYPTO_BLKCIPHER2
select CRYPTO_ALGAPI
+config CRYPTO_BLKCIPHER2
+ tristate
+ select CRYPTO_ALGAPI2
+ select CRYPTO_RNG2
+
config CRYPTO_HASH
tristate
+ select CRYPTO_HASH2
+ select CRYPTO_ALGAPI
+
+config CRYPTO_HASH2
+ tristate
+ select CRYPTO_ALGAPI2
+
+config CRYPTO_RNG
+ tristate
+ select CRYPTO_RNG2
select CRYPTO_ALGAPI
+config CRYPTO_RNG2
+ tristate
+ select CRYPTO_ALGAPI2
+
config CRYPTO_MANAGER
tristate "Cryptographic algorithm manager"
- select CRYPTO_ALGAPI
+ select CRYPTO_MANAGER2
help
Create default cryptographic template instantiations such as
cbc(aes).
+config CRYPTO_MANAGER2
+ def_tristate CRYPTO_MANAGER || (CRYPTO_MANAGER!=n && CRYPTO_ALGAPI=y)
+ select CRYPTO_AEAD2
+ select CRYPTO_HASH2
+ select CRYPTO_BLKCIPHER2
+
+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_NULL
+ tristate "Null algorithms"
+ select CRYPTO_ALGAPI
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_HASH
+ help
+ These are 'Null' algorithms, used by IPsec, which do nothing.
+
+config CRYPTO_CRYPTD
+ tristate "Software async crypto daemon"
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_HASH
+ 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_AUTHENC
+ tristate "Authenc support"
+ select CRYPTO_AEAD
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_MANAGER
+ select CRYPTO_HASH
+ help
+ Authenc: Combined mode wrapper for IPsec.
+ This is required for IPSec.
+
+config CRYPTO_TEST
+ tristate "Testing module"
+ depends on m
+ select CRYPTO_MANAGER
+ help
+ Quick & dirty crypto test module.
+
+comment "Authenticated Encryption with Associated Data"
+
+config CRYPTO_CCM
+ tristate "CCM support"
+ select CRYPTO_CTR
+ select CRYPTO_AEAD
+ help
+ Support for Counter with CBC MAC. Required for IPsec.
+
+config CRYPTO_GCM
+ tristate "GCM/GMAC support"
+ select CRYPTO_CTR
+ select CRYPTO_AEAD
+ select CRYPTO_GF128MUL
+ help
+ Support for Galois/Counter Mode (GCM) and Galois Message
+ Authentication Code (GMAC). Required for IPSec.
+
+config CRYPTO_SEQIV
+ tristate "Sequence Number IV Generator"
+ select CRYPTO_AEAD
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_RNG
+ help
+ This IV generator generates an IV based on a sequence number by
+ xoring it with a salt. This algorithm is mainly useful for CTR
+
+comment "Block modes"
+
+config CRYPTO_CBC
+ tristate "CBC support"
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_MANAGER
+ help
+ CBC: Cipher Block Chaining mode
+ This block cipher algorithm is required for IPSec.
+
+config CRYPTO_CTR
+ tristate "CTR support"
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_SEQIV
+ select CRYPTO_MANAGER
+ help
+ CTR: Counter mode
+ This block cipher algorithm is required for IPSec.
+
+config CRYPTO_CTS
+ tristate "CTS support"
+ select CRYPTO_BLKCIPHER
+ help
+ CTS: Cipher Text Stealing
+ This is the Cipher Text Stealing mode as described by
+ Section 8 of rfc2040 and referenced by rfc3962.
+ (rfc3962 includes errata information in its Appendix A)
+ This mode is required for Kerberos gss mechanism support
+ for AES encryption.
+
+config CRYPTO_ECB
+ tristate "ECB support"
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_MANAGER
+ help
+ ECB: Electronic CodeBook mode
+ This is the simplest block cipher algorithm. It simply encrypts
+ the input block by block.
+
+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_PCBC
+ tristate "PCBC support"
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_MANAGER
+ help
+ PCBC: Propagating Cipher Block Chaining mode
+ This block cipher algorithm is required for RxRPC.
+
+config CRYPTO_XTS
+ tristate "XTS support (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ select CRYPTO_BLKCIPHER
+ select CRYPTO_MANAGER
+ select CRYPTO_GF128MUL
+ help
+ XTS: IEEE1619/D16 narrow block cipher use with aes-xts-plain,
+ key size 256, 384 or 512 bits. This implementation currently
+ can't handle a sectorsize which is not a multiple of 16 bytes.
+
+comment "Hash modes"
+
config CRYPTO_HMAC
tristate "HMAC support"
select CRYPTO_HASH
http://csrc.nist.gov/encryption/modes/proposedmodes/
xcbc-mac/xcbc-mac-spec.pdf
-config CRYPTO_NULL
- tristate "Null algorithms"
- select CRYPTO_ALGAPI
+comment "Digest"
+
+config CRYPTO_CRC32C
+ tristate "CRC32c CRC algorithm"
+ select CRYPTO_HASH
help
- These are 'Null' algorithms, used by IPsec, which do nothing.
+ Castagnoli, et al Cyclic Redundancy-Check Algorithm. Used
+ by iSCSI for header and data digests and by others.
+ See Castagnoli93. Module will be crc32c.
+
+config CRYPTO_CRC32C_INTEL
+ tristate "CRC32c INTEL hardware acceleration"
+ depends on X86
+ select CRYPTO_HASH
+ help
+ In Intel processor with SSE4.2 supported, the processor will
+ support CRC32C implementation using hardware accelerated CRC32
+ instruction. This option will create 'crc32c-intel' module,
+ which will enable any routine to use the CRC32 instruction to
+ gain performance compared with software implementation.
+ Module will be crc32c-intel.
config CRYPTO_MD4
tristate "MD4 digest algorithm"
- select CRYPTO_ALGAPI
+ select CRYPTO_HASH
help
MD4 message digest algorithm (RFC1320).
config CRYPTO_MD5
tristate "MD5 digest algorithm"
- select CRYPTO_ALGAPI
+ select CRYPTO_HASH
help
MD5 message digest algorithm (RFC1321).
-config CRYPTO_SHA1
- tristate "SHA1 digest algorithm"
- select CRYPTO_ALGAPI
+config CRYPTO_MICHAEL_MIC
+ tristate "Michael MIC keyed digest algorithm"
+ select CRYPTO_HASH
help
- SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
+ 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_SHA1_S390
- tristate "SHA1 digest algorithm (s390)"
- depends on S390
- select CRYPTO_ALGAPI
+config CRYPTO_RMD128
+ tristate "RIPEMD-128 digest algorithm"
+ select CRYPTO_HASH
help
- This is the s390 hardware accelerated implementation of the
- SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
+ RIPEMD-128 (ISO/IEC 10118-3:2004).
-config CRYPTO_SHA256
- tristate "SHA256 digest algorithm"
- select CRYPTO_ALGAPI
+ RIPEMD-128 is a 128-bit cryptographic hash function. It should only
+ to be used as a secure replacement for RIPEMD. For other use cases
+ RIPEMD-160 should be used.
+
+ Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
+ See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
+
+config CRYPTO_RMD160
+ tristate "RIPEMD-160 digest algorithm"
+ select CRYPTO_HASH
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.
+ RIPEMD-160 (ISO/IEC 10118-3:2004).
-config CRYPTO_SHA256_S390
- tristate "SHA256 digest algorithm (s390)"
- depends on S390
- select CRYPTO_ALGAPI
+ RIPEMD-160 is a 160-bit cryptographic hash function. It is intended
+ to be used as a secure replacement for the 128-bit hash functions
+ MD4, MD5 and it's predecessor RIPEMD
+ (not to be confused with RIPEMD-128).
+
+ It's speed is comparable to SHA1 and there are no known attacks
+ against RIPEMD-160.
+
+ Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
+ See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
+
+config CRYPTO_RMD256
+ tristate "RIPEMD-256 digest algorithm"
+ select CRYPTO_HASH
+ help
+ RIPEMD-256 is an optional extension of RIPEMD-128 with a
+ 256 bit hash. It is intended for applications that require
+ longer hash-results, without needing a larger security level
+ (than RIPEMD-128).
+
+ Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
+ See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
+
+config CRYPTO_RMD320
+ tristate "RIPEMD-320 digest algorithm"
+ select CRYPTO_HASH
+ help
+ RIPEMD-320 is an optional extension of RIPEMD-160 with a
+ 320 bit hash. It is intended for applications that require
+ longer hash-results, without needing a larger security level
+ (than RIPEMD-160).
+
+ Developed by Hans Dobbertin, Antoon Bosselaers and Bart Preneel.
+ See <http://home.esat.kuleuven.be/~bosselae/ripemd160.html>
+
+config CRYPTO_SHA1
+ tristate "SHA1 digest algorithm"
+ select CRYPTO_HASH
+ help
+ SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).
+
+config CRYPTO_SHA256
+ tristate "SHA224 and SHA256 digest algorithm"
+ select CRYPTO_HASH
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.
+ This code also includes SHA-224, a 224 bit hash with 112 bits
+ of security against collision attacks.
+
config CRYPTO_SHA512
tristate "SHA384 and SHA512 digest algorithms"
- select CRYPTO_ALGAPI
+ select CRYPTO_HASH
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_TGR192
+ tristate "Tiger digest algorithms"
+ select CRYPTO_HASH
+ 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_WP512
tristate "Whirlpool digest algorithms"
- select CRYPTO_ALGAPI
+ select CRYPTO_HASH
help
Whirlpool hash algorithm 512, 384 and 256-bit hashes
See also:
<http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>
-config CRYPTO_TGR192
- tristate "Tiger digest algorithms"
+comment "Ciphers"
+
+config CRYPTO_AES
+ tristate "AES cipher algorithms"
select CRYPTO_ALGAPI
help
- Tiger hash algorithm 192, 160 and 128-bit hashes
+ AES cipher algorithms (FIPS-197). AES uses the Rijndael
+ algorithm.
- 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.
+ 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.
- See also:
- <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.
+ The AES specifies three key sizes: 128, 192 and 256 bits
-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.
+ See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
-config CRYPTO_ECB
- tristate "ECB support"
- select CRYPTO_BLKCIPHER
- select CRYPTO_MANAGER
- default m
+config CRYPTO_AES_586
+ tristate "AES cipher algorithms (i586)"
+ depends on (X86 || UML_X86) && !64BIT
+ select CRYPTO_ALGAPI
+ select CRYPTO_AES
help
- ECB: Electronic CodeBook mode
- This is the simplest block cipher algorithm. It simply encrypts
- the input block by block.
+ AES cipher algorithms (FIPS-197). AES uses the Rijndael
+ algorithm.
-config CRYPTO_CBC
- tristate "CBC support"
- select CRYPTO_BLKCIPHER
- select CRYPTO_MANAGER
- default m
+ 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
+ select CRYPTO_AES
help
- CBC: Cipher Block Chaining mode
- This block cipher algorithm is required for IPSec.
+ AES cipher algorithms (FIPS-197). AES uses the Rijndael
+ algorithm.
-config CRYPTO_DES
- tristate "DES and Triple DES EDE cipher algorithms"
+ 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_ANUBIS
+ tristate "Anubis cipher algorithm"
select CRYPTO_ALGAPI
help
- DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
+ Anubis cipher algorithm.
-config CRYPTO_DES_S390
- tristate "DES and Triple DES cipher algorithms (s390)"
- depends on S390
+ 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_ARC4
+ tristate "ARC4 cipher algorithm"
select CRYPTO_ALGAPI
- select CRYPTO_BLKCIPHER
help
- DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
+ 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_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"
+config CRYPTO_CAMELLIA
+ tristate "Camellia cipher algorithms"
+ depends on CRYPTO
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.
-
+ 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:
- <http://www.schneier.com/twofish.html>
+ <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html>
-config CRYPTO_TWOFISH_COMMON
- tristate
+config CRYPTO_CAST5
+ tristate "CAST5 (CAST-128) cipher algorithm"
+ select CRYPTO_ALGAPI
help
- Common parts of the Twofish cipher algorithm shared by the
- generic c and the assembler implementations.
+ The CAST5 encryption algorithm (synonymous with CAST-128) is
+ described in RFC2144.
-config CRYPTO_TWOFISH_586
- tristate "Twofish cipher algorithms (i586)"
- depends on (X86 || UML_X86) && !64BIT
+config CRYPTO_CAST6
+ tristate "CAST6 (CAST-256) 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>
+ The CAST6 encryption algorithm (synonymous with CAST-256) is
+ described in RFC2612.
-config CRYPTO_TWOFISH_X86_64
- tristate "Twofish cipher algorithm (x86_64)"
- depends on (X86 || UML_X86) && 64BIT
+config CRYPTO_DES
+ tristate "DES and Triple DES EDE cipher algorithms"
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.
+ DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
- See also:
- <http://www.schneier.com/twofish.html>
+config CRYPTO_FCRYPT
+ tristate "FCrypt cipher algorithm"
+ select CRYPTO_ALGAPI
+ select CRYPTO_BLKCIPHER
+ help
+ FCrypt algorithm used by RxRPC.
-config CRYPTO_SERPENT
- tristate "Serpent cipher algorithm"
+config CRYPTO_KHAZAD
+ tristate "Khazad cipher algorithm"
select CRYPTO_ALGAPI
help
- Serpent cipher algorithm, by Anderson, Biham & Knudsen.
+ Khazad cipher algorithm.
- 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.
+ 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://www.cl.cam.ac.uk/~rja14/serpent.html>
+ <http://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
-config CRYPTO_AES
- tristate "AES cipher algorithms"
- select CRYPTO_ALGAPI
+config CRYPTO_SALSA20
+ tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ select CRYPTO_BLKCIPHER
help
- AES cipher algorithms (FIPS-197). AES uses the Rijndael
- algorithm.
+ Salsa20 stream cipher 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.
+ Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
+ Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
- The AES specifies three key sizes: 128, 192 and 256 bits
+ The Salsa20 stream cipher algorithm is designed by Daniel J.
+ Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
- See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information.
-
-config CRYPTO_AES_586
- tristate "AES cipher algorithms (i586)"
+config CRYPTO_SALSA20_586
+ tristate "Salsa20 stream cipher algorithm (i586) (EXPERIMENTAL)"
depends on (X86 || UML_X86) && !64BIT
- select CRYPTO_ALGAPI
+ depends on EXPERIMENTAL
+ select CRYPTO_BLKCIPHER
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.
+ Salsa20 stream cipher algorithm.
- The AES specifies three key sizes: 128, 192 and 256 bits
+ Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
+ Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
- See <http://csrc.nist.gov/encryption/aes/> for more information.
+ The Salsa20 stream cipher algorithm is designed by Daniel J.
+ Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
-config CRYPTO_AES_X86_64
- tristate "AES cipher algorithms (x86_64)"
+config CRYPTO_SALSA20_X86_64
+ tristate "Salsa20 stream cipher algorithm (x86_64) (EXPERIMENTAL)"
depends on (X86 || UML_X86) && 64BIT
- select CRYPTO_ALGAPI
+ depends on EXPERIMENTAL
+ select CRYPTO_BLKCIPHER
help
- AES cipher algorithms (FIPS-197). AES uses the Rijndael
- algorithm.
+ Salsa20 stream cipher 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.
+ Salsa20 is a stream cipher submitted to eSTREAM, the ECRYPT
+ Stream Cipher Project. See <http://www.ecrypt.eu.org/stream/>
- The AES specifies three key sizes: 128, 192 and 256 bits
+ The Salsa20 stream cipher algorithm is designed by Daniel J.
+ Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html>
- See <http://csrc.nist.gov/encryption/aes/> for more information.
-
-config CRYPTO_AES_S390
- tristate "AES cipher algorithms (s390)"
- depends on S390
+config CRYPTO_SEED
+ tristate "SEED cipher algorithm"
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.
+ SEED cipher algorithm (RFC4269).
- 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.
+ SEED is a 128-bit symmetric key block cipher that has been
+ developed by KISA (Korea Information Security Agency) as a
+ national standard encryption algorithm of the Republic of Korea.
+ It is a 16 round block cipher with the key size of 128 bit.
- On s390 the System z9-109 currently only supports the key size
- of 128 bit.
+ See also:
+ <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp>
-config CRYPTO_CAST5
- tristate "CAST5 (CAST-128) cipher algorithm"
+config CRYPTO_SERPENT
+ tristate "Serpent cipher algorithm"
select CRYPTO_ALGAPI
help
- The CAST5 encryption algorithm (synonymous with CAST-128) is
- described in RFC2144.
+ Serpent cipher algorithm, by Anderson, Biham & Knudsen.
-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.
+ 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_TEA
tristate "TEA, XTEA and XETA cipher algorithms"
the TEA algorithm to address a potential key weakness
in the TEA algorithm.
- Xtendend Encryption Tiny Algorithm is a mis-implementation
+ Xtendend Encryption Tiny Algorithm is a mis-implementation
of the XTEA algorithm for compatibility purposes.
-config CRYPTO_ARC4
- tristate "ARC4 cipher algorithm"
+config CRYPTO_TWOFISH
+ tristate "Twofish cipher algorithm"
select CRYPTO_ALGAPI
+ select CRYPTO_TWOFISH_COMMON
help
- ARC4 cipher algorithm.
+ Twofish 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.
+ 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.
-config CRYPTO_KHAZAD
- tristate "Khazad cipher algorithm"
+ 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
- Khazad cipher algorithm.
+ Twofish 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.
+ 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://planeta.terra.com.br/informatica/paulobarreto/KhazadPage.html>
+ <http://www.schneier.com/twofish.html>
-config CRYPTO_ANUBIS
- tristate "Anubis cipher algorithm"
+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
- Anubis cipher algorithm.
+ 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.
- 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>
+ <http://www.schneier.com/twofish.html>
+comment "Compression"
config CRYPTO_DEFLATE
tristate "Deflate compression algorithm"
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"
+config CRYPTO_LZO
+ tristate "LZO compression algorithm"
select CRYPTO_ALGAPI
+ select LZO_COMPRESS
+ select LZO_DECOMPRESS
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.
+ This is the LZO 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.
+comment "Random Number Generation"
-config CRYPTO_TEST
- tristate "Testing module"
- depends on m
- select CRYPTO_ALGAPI
+config CRYPTO_ANSI_CPRNG
+ tristate "Pseudo Random Number Generation for Cryptographic modules"
+ select CRYPTO_AES
+ select CRYPTO_RNG
+ select CRYPTO_FIPS
help
- Quick & dirty crypto test module.
+ This option enables the generic pseudo random number generator
+ for cryptographic modules. Uses the Algorithm specified in
+ ANSI X9.31 A.2.4
source "drivers/crypto/Kconfig"
endif # if CRYPTO
-
-endmenu