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Eric Biggers 1ca1b91794 crypto: chacha20-generic - refactor to allow varying number of rounds 
In preparation for adding XChaCha12 support, rename/refactor
chacha20-generic to support different numbers of rounds.  The
justification for needing XChaCha12 support is explained in more detail
in the patch "crypto: chacha - add XChaCha12 support".

The only difference between ChaCha{8,12,20} are the number of rounds
itself; all other parts of the algorithm are the same.  Therefore,
remove the "20" from all definitions, structures, functions, files, etc.
that will be shared by all ChaCha versions.

Also make ->setkey() store the round count in the chacha_ctx (previously
chacha20_ctx).  The generic code then passes the round count through to
chacha_block().  There will be a ->setkey() function for each explicitly
allowed round count; the encrypt/decrypt functions will be the same.  I
decided not to do it the opposite way (same ->setkey() function for all
round counts, with different encrypt/decrypt functions) because that
would have required more boilerplate code in architecture-specific
implementations of ChaCha and XChaCha.

Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Martin Willi <martin@strongswan.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
 		2018-11-20 14:26:55 +08:00
..
asymmetric_keys KEYS: asym_tpm: Add support for the sign operation [ver #2] 2018-10-26 09:30:47 +01:00
async_tx async_pq: Remove VLA usage 2018-06-18 20:17:38 +05:30
842.c crypto: acomp - add support for 842 via scomp 2016-10-25 11:08:33 +08:00
Kconfig crypto: chacha20-generic - add XChaCha20 support 2018-11-20 14:26:55 +08:00
Makefile crypto: chacha20-generic - refactor to allow varying number of rounds 2018-11-20 14:26:55 +08:00
ablkcipher.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
acompress.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
aead.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
aegis.h crypto: aegis/generic - fix for big endian systems 2018-10-08 13:44:53 +08:00
aegis128.c crypto: aead - remove useless setting of type flags 2018-07-09 00:30:26 +08:00
aegis128l.c crypto: aead - remove useless setting of type flags 2018-07-09 00:30:26 +08:00
aegis256.c crypto: aead - remove useless setting of type flags 2018-07-09 00:30:26 +08:00
aes_generic.c crypto: arm/aes - add some hardening against cache-timing attacks 2018-11-09 17:36:48 +08:00
aes_ti.c crypto: aes_ti - disable interrupts while accessing S-box 2018-11-09 17:36:48 +08:00
af_alg.c Revert "net: simplify sock_poll_wait" 2018-10-23 10:57:06 -07:00
ahash.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
akcipher.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
algapi.c crypto: user - Implement a generic crypto statistics 2018-09-28 12:46:25 +08:00
algboss.c crypto: api - Introduce notifier for new crypto algorithms 2018-09-04 11:37:04 +08:00
algif_aead.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
algif_hash.c crypto: hash - Remove VLA usage 2018-09-04 11:35:03 +08:00
algif_rng.c net: remove sock_no_poll 2018-05-26 09:16:44 +02:00
algif_skcipher.c Revert changes to convert to ->poll_mask() and aio IOCB_CMD_POLL 2018-06-28 10:40:47 -07:00
ansi_cprng.c crypto: ansi_cprng - Convert to new rng interface 2015-04-22 09:30:18 +08:00
anubis.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
api.c evm: Don't deadlock if a crypto algorithm is unavailable 2018-07-18 07:27:22 -04:00
arc4.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
authenc.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
authencesn.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
blkcipher.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
blowfish_common.c crypto: blowfish - split generic and common c code 2011-09-22 21:25:25 +10:00
blowfish_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
camellia_generic.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
cast5_generic.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
cast6_generic.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
cast_common.c crypto: make tables used from assembler __visible 2013-08-14 20:42:03 +10:00
cbc.c crypto: cbc - Propagate NEED_FALLBACK bit 2017-03-09 18:34:39 +08:00
ccm.c crypto: ccm - Remove VLA usage 2018-09-04 11:35:03 +08:00
cfb.c crypto: cfb - fix decryption 2018-11-09 17:40:59 +08:00
chacha20poly1305.c crypto: chacha20-generic - refactor to allow varying number of rounds 2018-11-20 14:26:55 +08:00
chacha_generic.c crypto: chacha20-generic - refactor to allow varying number of rounds 2018-11-20 14:26:55 +08:00
cipher.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
cmac.c crypto: algapi - make crypto_xor() and crypto_inc() alignment agnostic 2017-02-11 17:52:28 +08:00
compress.c crypto: api - Remove no-op exit_ops code 2016-10-21 11:03:42 +08:00
crc32_generic.c crypto: crc32-generic - remove __crc32_le() 2018-05-27 00:12:09 +08:00
crc32c_generic.c crypto: crc32c-generic - remove cra_alignmask 2018-05-27 00:12:08 +08:00
crct10dif_common.c crypto: crct10dif - Add fallback for broken initrds 2013-09-12 15:31:34 +10:00
crct10dif_generic.c crypto: squash lines for simple wrapper functions 2016-09-13 20:27:26 +08:00
cryptd.c crypto: cryptd - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
crypto_engine.c crypto: engine - Permit to enqueue all async requests 2018-02-15 23:26:50 +08:00
crypto_null.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
crypto_user_base.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
crypto_user_stat.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
crypto_wq.c crypto: crypto_wq - Fix late crypto work queue initialization 2014-03-21 21:54:28 +08:00
ctr.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
cts.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
deflate.c crypto: scomp - add support for deflate rfc1950 (zlib) 2017-04-24 18:11:08 +08:00
des_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
dh.c crypto: dh - fix memory leak 2018-07-20 13:51:21 +08:00
dh_helper.c crypto: dh - make crypto_dh_encode_key() make robust 2018-08-03 18:06:06 +08:00
drbg.c crypto: drbg - in-place cipher operation for CTR 2018-08-03 18:05:48 +08:00
ecb.c crypto: include crypto- module prefix in template 2014-11-26 20:06:30 +08:00
ecc.c crypto: ecc - regularize scalar for scalar multiplication 2018-11-16 14:11:04 +08:00
ecc.h crypto: ecc - Actually remove stack VLA usage 2018-04-21 00:58:29 +08:00
ecc_curve_defs.h crypto: ecdh - fix typo of P-192 b value 2018-07-20 13:51:22 +08:00
ecdh.c crypto: ecc - Actually remove stack VLA usage 2018-04-21 00:58:29 +08:00
ecdh_helper.c crypto: ecdh - return unsigned value for crypto_ecdh_key_len() 2017-10-12 22:55:00 +08:00
echainiv.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
fcrypt.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
fips.c crypto: fips - Move fips_enabled sysctl into fips.c 2015-04-23 14:18:09 +08:00
gcm.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
gf128mul.c crypto: gf128mul - remove incorrect comment 2017-12-22 19:52:40 +11:00
ghash-generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
hash_info.c crypto: streebog - register Streebog in hash info for IMA 2018-11-16 14:09:40 +08:00
hmac.c crypto: hmac - require that the underlying hash algorithm is unkeyed 2017-11-29 13:39:15 +11:00
internal.h crypto: api - Introduce notifier for new crypto algorithms 2018-09-04 11:37:04 +08:00
jitterentropy-kcapi.c crypto: jitterentropy - drop duplicate header module.h 2016-11-17 23:34:52 +08:00
jitterentropy.c crypto: jitterentropy - Delete unnecessary checks before the function call "kzfree" 2015-06-25 23:18:33 +08:00
keywrap.c crypto: keywrap - Add missing ULL suffixes for 64-bit constants 2017-11-29 17:33:26 +11:00
khazad.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
kpp.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
lrw.c crypto: lrw - fix rebase error after out of bounds fix 2018-10-05 10:22:48 +08:00
lz4.c crypto: remove useless initializations of cra_list 2018-11-20 14:26:55 +08:00
lz4hc.c crypto: remove useless initializations of cra_list 2018-11-20 14:26:55 +08:00
lzo.c treewide: use kv[mz]alloc* rather than opencoded variants 2017-05-08 17:15:13 -07:00
md4.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
md5.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
memneq.c crypto: memneq - fix for archs without efficient unaligned access 2013-12-09 20:09:12 +08:00
michael_mic.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
morus640.c crypto: morus/generic - fix for big endian systems 2018-10-08 13:44:53 +08:00
morus1280.c crypto: morus/generic - fix for big endian systems 2018-10-08 13:44:53 +08:00
ofb.c crypto: ofb - add output feedback mode 2018-09-28 12:46:26 +08:00
pcbc.c crypto: remove several VLAs 2018-04-21 00:58:34 +08:00
pcrypt.c pcrypt: use format specifier in kobject_add 2018-11-09 17:41:39 +08:00
poly1305_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
proc.c proc: introduce proc_create_seq{,_data} 2018-05-16 07:23:35 +02:00
ripemd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rmd128.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
rmd160.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
rmd256.c crypto: rmd256 - use swap macro in rmd256_transform 2018-07-27 19:28:36 +08:00
rmd320.c crypto: rmd320 - use swap macro in rmd320_transform 2018-07-27 19:28:36 +08:00
rng.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
rsa-pkcs1pad.c crypto: rsa-pkcs1pad: Allow hash to be optional [ver #2] 2018-10-26 09:30:46 +01:00
rsa.c crypto: rsa - Remove unneeded error assignment 2018-04-21 00:58:37 +08:00
rsa_helper.c kbuild: rename *-asn1.[ch] to *.asn1.[ch] 2018-04-07 19:04:02 +09:00
rsaprivkey.asn1 crypto: rsa - Store rest of the private key components 2016-07-05 23:05:26 +08:00
rsapubkey.asn1 crypto: akcipher - Changes to asymmetric key API 2015-10-14 22:23:16 +08:00
salsa20_generic.c crypto: salsa20 - Revert "crypto: salsa20 - export generic helpers" 2018-05-31 00:13:57 +08:00
scatterwalk.c crypto: scatterwalk - remove 'chain' argument from scatterwalk_crypto_chain() 2018-08-03 18:06:03 +08:00
scompress.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
seed.c crypto: prefix module autoloading with "crypto-" 2014-11-24 22:43:57 +08:00
seqiv.c crypto: null - Remove VLA usage of skcipher 2018-09-28 12:46:08 +08:00
serpent_generic.c crypto: serpent - improve __serpent_setkey with UBSAN 2017-08-09 20:17:54 +08:00
sha1_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
sha3_generic.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux 2018-08-03 17:55:12 +08:00
sha256_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
sha512_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
shash.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
simd.c crypto: simd - correctly take reqsize of wrapped skcipher into account 2018-11-09 17:35:43 +08:00
skcipher.c crypto: user - clean up report structure copying 2018-11-09 17:41:39 +08:00
sm3_generic.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
sm4_generic.c crypto: sm4 - export encrypt/decrypt routines to other drivers 2018-05-05 14:52:51 +08:00
streebog_generic.c crypto: streebog - add Streebog hash function 2018-11-16 14:09:40 +08:00
tcrypt.c crypto: streebog - add Streebog test vectors 2018-11-16 14:11:02 +08:00
tcrypt.h crypto: testmgr - update sm4 test vectors 2018-09-28 12:46:26 +08:00
tea.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
testmgr.c crypto: chacha20-generic - add XChaCha20 support 2018-11-20 14:26:55 +08:00
testmgr.h crypto: chacha20-generic - add XChaCha20 support 2018-11-20 14:26:55 +08:00
tgr192.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
twofish_common.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
twofish_generic.c crypto: replace FSF address with web source in license notices 2017-11-29 17:33:25 +11:00
vmac.c crypto: vmac - remove insecure version with hardcoded nonce 2018-07-01 21:00:44 +08:00
wp512.c crypto: shash - remove useless setting of type flags 2018-07-09 00:30:24 +08:00
xcbc.c crypto: xcbc - Remove VLA usage 2018-09-04 11:35:03 +08:00
xor.c kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK 2017-11-15 18:21:04 -08:00
xts.c crypto: xts - Drop use of auxiliary buffer 2018-09-21 13:24:50 +08:00
zstd.c crypto: zstd - Add zstd support 2018-04-21 00:58:30 +08:00