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#
# Generic algorithms support
#
config XOR_BLOCKS
        tristate

#
# async_tx api: hardware offloaded memory transfer/transform support
#
source "crypto/async_tx/Kconfig"

#
# Cryptographic API Configuration
#
menuconfig 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_ABLKCIPHER
        tristate
        select CRYPTO_BLKCIPHER

config CRYPTO_AEAD
        tristate
        select CRYPTO_ALGAPI

config CRYPTO_BLKCIPHER
        tristate
        select CRYPTO_ALGAPI

config CRYPTO_HASH
        tristate
        select CRYPTO_ALGAPI

config CRYPTO_MANAGER
        tristate "Cryptographic algorithm manager"
        select CRYPTO_ALGAPI
        help
          Create default cryptographic template instantiations such as
          cbc(aes).

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

config CRYPTO_XCBC
        tristate "XCBC support"
        depends on EXPERIMENTAL
        select CRYPTO_HASH
        select CRYPTO_MANAGER
        help
          XCBC: Keyed-Hashing with encryption algorithm
                http://www.ietf.org/rfc/rfc3566.txt
                http://csrc.nist.gov/encryption/modes/proposedmodes/
                 xcbc-mac/xcbc-mac-spec.pdf

config CRYPTO_NULL
        tristate "Null algorithms"
        select CRYPTO_ALGAPI
        help
          These are 'Null' algorithms, used by IPsec, which do nothing.

config CRYPTO_MD4
        tristate "MD4 digest algorithm"
        select CRYPTO_ALGAPI
        help
          MD4 message digest algorithm (RFC1320).

config CRYPTO_MD5
        tristate "MD5 digest algorithm"
        select CRYPTO_ALGAPI
        help
          MD5 message digest algorithm (RFC1321).

config CRYPTO_SHA1
        tristate "SHA1 digest algorithm"
        select CRYPTO_ALGAPI
        help
          SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2).

config CRYPTO_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_SHA512
        tristate "SHA384 and SHA512 digest algorithms"
        select CRYPTO_ALGAPI
        help
          SHA512 secure hash standard (DFIPS 180-2).
          
          This version of SHA implements a 512 bit hash with 256 bits of
          security against collision attacks.

          This code also includes SHA-384, a 384 bit hash with 192 bits
          of security against collision attacks.

config CRYPTO_WP512
        tristate "Whirlpool digest algorithms"
        select CRYPTO_ALGAPI
        help
          Whirlpool hash algorithm 512, 384 and 256-bit hashes

          Whirlpool-512 is part of the NESSIE cryptographic primitives.
          Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard

          See also:
          <http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html>

config CRYPTO_TGR192
        tristate "Tiger digest algorithms"
        select CRYPTO_ALGAPI
        help
          Tiger hash algorithm 192, 160 and 128-bit hashes

          Tiger is a hash function optimized for 64-bit processors while
          still having decent performance on 32-bit processors.
          Tiger was developed by Ross Anderson and Eli Biham.

          See also:
          <http://www.cs.technion.ac.il/~biham/Reports/Tiger/>.

config CRYPTO_GF128MUL
        tristate "GF(2^128) multiplication functions (EXPERIMENTAL)"
        depends on EXPERIMENTAL
        help
          Efficient table driven implementation of multiplications in the
          field GF(2^128).  This is needed by some cypher modes. This
          option will be selected automatically if you select such a
          cipher mode.  Only select this option by hand if you expect to load
          an external module that requires these functions.

config CRYPTO_ECB
        tristate "ECB support"
        select CRYPTO_BLKCIPHER
        select CRYPTO_MANAGER
        help
          ECB: Electronic CodeBook mode
          This is the simplest block cipher algorithm.  It simply encrypts
          the input block by block.

config CRYPTO_CBC
        tristate "CBC support"
        select CRYPTO_BLKCIPHER
        select CRYPTO_MANAGER
        help
          CBC: Cipher Block Chaining mode
          This block cipher algorithm is required for IPSec.

config CRYPTO_PCBC
        tristate "PCBC support"
        select CRYPTO_BLKCIPHER
        select CRYPTO_MANAGER
        help
          PCBC: Propagating Cipher Block Chaining mode
          This block cipher algorithm is required for RxRPC.

config CRYPTO_LRW
        tristate "LRW support (EXPERIMENTAL)"
        depends on EXPERIMENTAL
        select CRYPTO_BLKCIPHER
        select CRYPTO_MANAGER
        select CRYPTO_GF128MUL
        help
          LRW: Liskov Rivest Wagner, a tweakable, non malleable, non movable
          narrow block cipher mode for dm-crypt.  Use it with cipher
          specification string aes-lrw-benbi, the key must be 256, 320 or 384.
          The first 128, 192 or 256 bits in the key are used for AES and the
          rest is used to tie each cipher block to its logical position.

config CRYPTO_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.

config CRYPTO_CRYPTD
        tristate "Software async crypto daemon"
        select CRYPTO_ABLKCIPHER
        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_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_FCRYPT
        tristate "FCrypt cipher algorithm"
        select CRYPTO_ALGAPI
        select CRYPTO_BLKCIPHER
        help
          FCrypt algorithm used by RxRPC.

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.org 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_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_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_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_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_TEST
        tristate "Testing module"
        depends on m
        select CRYPTO_ALGAPI
        help
          Quick & dirty crypto test module.

config CRYPTO_AUTHENC
        tristate "Authenc support"
        select CRYPTO_AEAD
        select CRYPTO_MANAGER
        help
          Authenc: Combined mode wrapper for IPsec.
          This is required for IPSec.

source "drivers/crypto/Kconfig"

endif   # if CRYPTO