src/bufwrite.c

#
# 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
	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_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
	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

comment "Digest"

config CRYPTO_CRC32C
	tristate "CRC32c CRC algorithm"
	select CRYPTO_HASH
	help
	  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_HASH
	help
	  MD4 message digest algorithm (RFC1320).

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

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_RMD128
	tristate "RIPEMD-128 digest algorithm"
	select CRYPTO_HASH
	help
	  RIPEMD-128 (ISO/IEC 10118-3:2004).

	  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
	  RIPEMD-160 (ISO/IEC 10118-3:2004).

	  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_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.

	  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
	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_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_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>

comment "Ciphers"

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
	select CRYPTO_AES
	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
	select CRYPTO_AES
Age	Commit message (Expand)	Author
2023-09-30	patch 9.0.1962: No support for writing extended attributesv9.0.1962	Christian Brabandt
2022-11-28	patch 9.0.0965: using one window for executing autocommands is insufficientv9.0.0965	Bram Moolenaar
2022-11-02	patch 9.0.0828: various typosv9.0.0828	dundargoc
2022-11-01	patch 9.0.0826: if 'endofline' is set CTRL-Z may be written in a wrong placev9.0.0826	K.Takata
2022-10-28	Fix wrong struct access for member.	Bram Moolenaar
2022-10-22	patch 9.0.0817v9.0.0817 v9.0.0816	Bram Moolenaar
2022-09-20	patch 9.0.0509: confusing error for "saveas" command with "nofile" bufferv9.0.0509	Bram Moolenaar
2022-08-26	patch 9.0.0278: the +wildignore feature is nearly always availablev9.0.0278	Bram Moolenaar
2022-08-25	patch 9.0.0263: too many #ifdefsv9.0.0263	Bram Moolenaar
2022-07-31	patch 9.0.0119: tiny chance that creating a backup file failsv9.0.0119	K.Takata
2022-05-09	patch 8.2.4928: various white space and cosmetic mistakesv8.2.4928	Bram Moolenaar
2022-01-01	patch 8.2.3970: error messages are spread outv8.2.3970	Bram Moolenaar
2022-01-01	patch 8.2.3967: error messages are spread outv8.2.3967	Bram Moolenaar
2021-12-31	patch 8.2.3961: error messages are spread outv8.2.3961	Bram Moolenaar
2021-12-31	patch 8.2.3960: error messages are spread outv8.2.3960	Bram Moolenaar
2021-12-31	patch 8.2.3959: error messages are spread outv8.2.3959	Bram Moolenaar
2021-12-31	patch 8.2.3957: error messages are spread outv8.2.3957	Bram Moolenaar
2021-12-05	patch 8.2.3749: error messages are everywherev8.2.3749	Bram Moolenaar
2021-11-29	patch 8.2.3699: the +title feature adds a lot of #ifdef but little codev8.2.3699	Bram Moolenaar
2021-10-16	patch 8.2.3517: TextChanged does not trigger after TextChangedIv8.2.3517	Christian Brabandt
2021-10-14	patch 8.2.3510: changes are only detected with one second accuracyv8.2.3510	Leah Neukirchen
2021-07-25	patch 8.2.3218: when using xchaha20 crypt undo file is not removedv8.2.3218	Christian Brabandt
2021-06-27	patch 8.2.3063: crash when switching 'cryptmethod' to xchaha20 with undo filev8.2.3063	Bram Moolenaar
2021-06-20	patch 8.2.3022: available encryption methods are not strong enoughv8.2.3022	Christian Brabandt
2021-02-01	patch 8.2.2450: MS-Windows: ADS was not preserved if 'backupcopy' is "yes"v8.2.2450	Bram Moolenaar
2020-12-23	patch 8.2.2199: first write after setting 'eol' does not have NL addedv8.2.2199	Bram Moolenaar
2020-12-18	patch 8.2.2160: various typosv8.2.2160	Bram Moolenaar
2020-11-23	patch 8.2.2039: viminfo is not written when creating a new filev8.2.2039	Bram Moolenaar
2020-10-24	patch 8.2.1898: command modifier parsing always uses global cmdmodv8.2.1898	Bram Moolenaar
2020-06-12	patch 8.2.0966: 'shortmess' flag "n" not used in two placesv8.2.0966	Bram Moolenaar
2019-12-15	patch 8.2.0009: VMS: terminal version doesn't buildv8.2.0009	Bram Moolenaar
2019-11-16	patch 8.1.2302: :lockmarks does not work for '[ and ']v8.1.2302	Bram Moolenaar
2019-09-28	patch 8.1.2094: the fileio.c file is too bigv8.1.2094	Bram Moolenaar