diff options
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/Kconfig | 645 |
1 files changed, 329 insertions, 316 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig index edd00c5307a4..864456c140fe 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -19,6 +19,8 @@ menuconfig CRYPTO if CRYPTO +comment "Crypto core or helper" + config CRYPTO_ALGAPI tristate help @@ -32,15 +34,6 @@ config CRYPTO_BLKCIPHER tristate select CRYPTO_ALGAPI -config CRYPTO_SEQIV - tristate "Sequence Number IV Generator" - select CRYPTO_AEAD - select CRYPTO_BLKCIPHER - 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 - and similar modes. - config CRYPTO_HASH tristate select CRYPTO_ALGAPI @@ -52,24 +45,15 @@ config CRYPTO_MANAGER 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" +config CRYPTO_GF128MUL + tristate "GF(2^128) multiplication functions (EXPERIMENTAL)" 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 + 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" @@ -78,107 +62,98 @@ config CRYPTO_NULL help These are 'Null' algorithms, used by IPsec, which do nothing. -config CRYPTO_MD4 - tristate "MD4 digest algorithm" - select CRYPTO_ALGAPI +config CRYPTO_CRYPTD + tristate "Software async crypto daemon" + select CRYPTO_BLKCIPHER + select CRYPTO_MANAGER help - MD4 message digest algorithm (RFC1320). + 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_MD5 - tristate "MD5 digest algorithm" - select CRYPTO_ALGAPI +config CRYPTO_AUTHENC + tristate "Authenc support" + select CRYPTO_AEAD + select CRYPTO_BLKCIPHER + select CRYPTO_MANAGER + select CRYPTO_HASH help - MD5 message digest algorithm (RFC1321). + Authenc: Combined mode wrapper for IPsec. + This is required for IPSec. -config CRYPTO_SHA1 - tristate "SHA1 digest algorithm" +config CRYPTO_TEST + tristate "Testing module" + depends on m select CRYPTO_ALGAPI + select CRYPTO_AEAD + select CRYPTO_BLKCIPHER help - SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2). + Quick & dirty crypto test module. -config CRYPTO_SHA256 - tristate "SHA224 and 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. +comment "Authenticated Encryption with Associated Data" - 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 +config CRYPTO_CCM + tristate "CCM support" + select CRYPTO_CTR + select CRYPTO_AEAD 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. + Support for Counter with CBC MAC. Required for IPsec. -config CRYPTO_WP512 - tristate "Whirlpool digest algorithms" - select CRYPTO_ALGAPI +config CRYPTO_GCM + tristate "GCM/GMAC support" + select CRYPTO_CTR + select CRYPTO_AEAD + select CRYPTO_GF128MUL 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> + Support for Galois/Counter Mode (GCM) and Galois Message + Authentication Code (GMAC). Required for IPSec. -config CRYPTO_TGR192 - tristate "Tiger digest algorithms" - select CRYPTO_ALGAPI +config CRYPTO_SEQIV + tristate "Sequence Number IV Generator" + select CRYPTO_AEAD + select CRYPTO_BLKCIPHER 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. + This IV generator generates an IV based on a sequence number by + xoring it with a salt. This algorithm is mainly useful for CTR - See also: - <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>. +comment "Block modes" -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" +config CRYPTO_CBC + tristate "CBC 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. + CBC: Cipher Block Chaining mode + This block cipher algorithm is required for IPSec. -config CRYPTO_CBC - tristate "CBC support" +config CRYPTO_CTR + tristate "CTR support" select CRYPTO_BLKCIPHER + select CRYPTO_SEQIV select CRYPTO_MANAGER help - CBC: Cipher Block Chaining mode + CTR: Counter mode This block cipher algorithm is required for IPSec. -config CRYPTO_PCBC - tristate "PCBC support" +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 - PCBC: Propagating Cipher Block Chaining mode - This block cipher algorithm is required for RxRPC. + 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)" @@ -193,6 +168,14 @@ config CRYPTO_LRW 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 @@ -204,160 +187,134 @@ config CRYPTO_XTS key size 256, 384 or 512 bits. This implementation currently can't handle a sectorsize which is not a multiple of 16 bytes. -config CRYPTO_CTR - tristate "CTR support" - select CRYPTO_BLKCIPHER - select CRYPTO_SEQIV +comment "Hash modes" + +config CRYPTO_HMAC + tristate "HMAC support" + select CRYPTO_HASH select CRYPTO_MANAGER help - CTR: Counter mode - This block cipher algorithm is required for IPSec. + HMAC: Keyed-Hashing for Message Authentication (RFC2104). + This is required for IPSec. -config CRYPTO_CTS - tristate "CTS support" - select CRYPTO_BLKCIPHER +config CRYPTO_XCBC + tristate "XCBC support" + depends on EXPERIMENTAL + select CRYPTO_HASH + select CRYPTO_MANAGER 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. + 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_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. +comment "Digest" -config CRYPTO_CCM - tristate "CCM support" - select CRYPTO_CTR - select CRYPTO_AEAD +config CRYPTO_CRC32C + tristate "CRC32c CRC algorithm" + select CRYPTO_ALGAPI + select LIBCRC32C help - Support for Counter with CBC MAC. Required for IPsec. + 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_CRYPTD - tristate "Software async crypto daemon" - select CRYPTO_BLKCIPHER - select CRYPTO_MANAGER +config CRYPTO_MD4 + tristate "MD4 digest algorithm" + select CRYPTO_ALGAPI 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. + MD4 message digest algorithm (RFC1320). -config CRYPTO_DES - tristate "DES and Triple DES EDE cipher algorithms" +config CRYPTO_MD5 + tristate "MD5 digest algorithm" select CRYPTO_ALGAPI help - DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3). + MD5 message digest algorithm (RFC1321). -config CRYPTO_FCRYPT - tristate "FCrypt cipher algorithm" +config CRYPTO_MICHAEL_MIC + tristate "Michael MIC keyed digest algorithm" select CRYPTO_ALGAPI - select CRYPTO_BLKCIPHER help - FCrypt algorithm used by RxRPC. + 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_BLOWFISH - tristate "Blowfish cipher algorithm" +config CRYPTO_SHA1 + tristate "SHA1 digest 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> + SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2). -config CRYPTO_TWOFISH - tristate "Twofish cipher algorithm" +config CRYPTO_SHA256 + tristate "SHA224 and SHA256 digest 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> + SHA256 secure hash standard (DFIPS 180-2). -config CRYPTO_TWOFISH_COMMON - tristate - help - Common parts of the Twofish cipher algorithm shared by the - generic c and the assembler implementations. + This version of SHA implements a 256 bit hash with 128 bits of + security against collision attacks. -config CRYPTO_TWOFISH_586 - tristate "Twofish cipher algorithms (i586)" - depends on (X86 || UML_X86) && !64BIT + 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_TWOFISH_COMMON help - Twofish cipher algorithm. + SHA512 secure hash standard (DFIPS 180-2). - 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. + This version of SHA implements a 512 bit hash with 256 bits of + security against collision attacks. - See also: - <http://www.schneier.com/twofish.html> + This code also includes SHA-384, a 384 bit hash with 192 bits + of security against collision attacks. -config CRYPTO_TWOFISH_X86_64 - tristate "Twofish cipher algorithm (x86_64)" - depends on (X86 || UML_X86) && 64BIT +config CRYPTO_TGR192 + tristate "Tiger digest algorithms" select CRYPTO_ALGAPI - select CRYPTO_TWOFISH_COMMON help - Twofish cipher algorithm (x86_64). + Tiger hash algorithm 192, 160 and 128-bit hashes - 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. + 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.schneier.com/twofish.html> + <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>. -config CRYPTO_SERPENT - tristate "Serpent cipher algorithm" +config CRYPTO_WP512 + tristate "Whirlpool digest algorithms" select CRYPTO_ALGAPI help - Serpent cipher algorithm, by Anderson, Biham & Knudsen. + Whirlpool hash algorithm 512, 384 and 256-bit hashes - 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. + 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://www.cl.cam.ac.uk/~rja14/serpent.html> + <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html> + +comment "Ciphers" config CRYPTO_AES tristate "AES cipher algorithms" select CRYPTO_ALGAPI help - AES cipher algorithms (FIPS-197). AES uses the Rijndael + 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. + 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 + The AES specifies three key sizes: 128, 192 and 256 bits See <http://csrc.nist.gov/CryptoToolkit/aes/> for more information. @@ -367,19 +324,19 @@ config CRYPTO_AES_586 select CRYPTO_ALGAPI select CRYPTO_AES help - AES cipher algorithms (FIPS-197). AES uses the Rijndael + 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. + 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 + The AES specifies three key sizes: 128, 192 and 256 bits See <http://csrc.nist.gov/encryption/aes/> for more information. @@ -389,22 +346,75 @@ config CRYPTO_AES_X86_64 select CRYPTO_ALGAPI select CRYPTO_AES help - AES cipher algorithms (FIPS-197). AES uses the Rijndael + 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. + 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 + 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 + 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_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_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_CAMELLIA + tristate "Camellia cipher algorithms" + depends on CRYPTO + select CRYPTO_ALGAPI + help + Camellia cipher algorithms module. + + Camellia is a symmetric key block cipher developed jointly + at NTT and Mitsubishi Electric Corporation. + + The Camellia specifies three key sizes: 128, 192 and 256 bits. + + See also: + <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html> + config CRYPTO_CAST5 tristate "CAST5 (CAST-128) cipher algorithm" select CRYPTO_ALGAPI @@ -419,33 +429,18 @@ config CRYPTO_CAST6 The CAST6 encryption algorithm (synonymous with CAST-256) is described in RFC2612. -config CRYPTO_TEA - tristate "TEA, XTEA and XETA cipher algorithms" +config CRYPTO_DES + tristate "DES and Triple DES EDE 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. + DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3). -config CRYPTO_ARC4 - tristate "ARC4 cipher algorithm" +config CRYPTO_FCRYPT + tristate "FCrypt cipher algorithm" select CRYPTO_ALGAPI + select CRYPTO_BLKCIPHER 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. + FCrypt algorithm used by RxRPC. config CRYPTO_KHAZAD tristate "Khazad cipher algorithm" @@ -460,34 +455,6 @@ config CRYPTO_KHAZAD 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_SEED - tristate "SEED cipher algorithm" - select CRYPTO_ALGAPI - help - SEED cipher algorithm (RFC4269). - - 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. - - See also: - <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp> - config CRYPTO_SALSA20 tristate "Salsa20 stream cipher algorithm (EXPERIMENTAL)" depends on EXPERIMENTAL @@ -529,69 +496,115 @@ config CRYPTO_SALSA20_X86_64 The Salsa20 stream cipher algorithm is designed by Daniel J. Bernstein <djb@cr.yp.to>. See <http://cr.yp.to/snuffle.html> -config CRYPTO_DEFLATE - tristate "Deflate compression algorithm" +config CRYPTO_SEED + tristate "SEED cipher 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. + SEED cipher algorithm (RFC4269). -config CRYPTO_MICHAEL_MIC - tristate "Michael MIC keyed digest algorithm" + 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. + + See also: + <http://www.kisa.or.kr/kisa/seed/jsp/seed_eng.jsp> + +config CRYPTO_SERPENT + tristate "Serpent cipher 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. + Serpent cipher algorithm, by Anderson, Biham & Knudsen. -config CRYPTO_CRC32C - tristate "CRC32c CRC 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.org code. + + See also: + <http://www.cl.cam.ac.uk/~rja14/serpent.html> + +config CRYPTO_TEA + tristate "TEA, XTEA and XETA cipher algorithms" 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. + TEA cipher algorithm. -config CRYPTO_CAMELLIA - tristate "Camellia cipher algorithms" - depends on CRYPTO + 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_TWOFISH + tristate "Twofish cipher algorithm" select CRYPTO_ALGAPI + select CRYPTO_TWOFISH_COMMON help - Camellia cipher algorithms module. + Twofish cipher algorithm. - Camellia is a symmetric key block cipher developed jointly - at NTT and Mitsubishi Electric Corporation. + 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. - The Camellia specifies three key sizes: 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: - <https://info.isl.ntt.co.jp/crypt/eng/camellia/index_s.html> + <http://www.schneier.com/twofish.html> -config CRYPTO_TEST - tristate "Testing module" - depends on m +config CRYPTO_TWOFISH_X86_64 + tristate "Twofish cipher algorithm (x86_64)" + depends on (X86 || UML_X86) && 64BIT select CRYPTO_ALGAPI - select CRYPTO_AEAD - select CRYPTO_BLKCIPHER + select CRYPTO_TWOFISH_COMMON help - Quick & dirty crypto test module. + Twofish cipher algorithm (x86_64). -config CRYPTO_AUTHENC - tristate "Authenc support" - select CRYPTO_AEAD - select CRYPTO_BLKCIPHER - select CRYPTO_MANAGER - select CRYPTO_HASH + 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> + +comment "Compression" + +config CRYPTO_DEFLATE + tristate "Deflate compression algorithm" + select CRYPTO_ALGAPI + select ZLIB_INFLATE + select ZLIB_DEFLATE help - Authenc: Combined mode wrapper for IPsec. - This is required for IPSec. + 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_LZO tristate "LZO compression algorithm" |