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remarkable-linux/crypto
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Stephan Mueller 3559128521 crypto: drbg - use CTR AES instead of ECB AES 
The CTR DRBG derives its random data from the CTR that is encrypted with
AES.

This patch now changes the CTR DRBG implementation such that the
CTR AES mode is employed. This allows the use of steamlined CTR AES
implementation such as ctr-aes-aesni.

Unfortunately there are the following subtile changes we need to apply
when using the CTR AES mode:

- the CTR mode increments the counter after the cipher operation, but
  the CTR DRBG requires the increment before the cipher op. Hence, the
  crypto_inc is applied to the counter (drbg->V) once it is
  recalculated.

- the CTR mode wants to encrypt data, but the CTR DRBG is interested in
  the encrypted counter only. The full CTR mode is the XOR of the
  encrypted counter with the plaintext data. To access the encrypted
  counter, the patch uses a NULL data vector as plaintext to be
  "encrypted".

Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2016-06-15 17:07:53 +08:00
..
asymmetric_keys Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-05-30 15:20:18 -07:00
async_tx mm/page_ref: add tracepoint to track down page reference manipulation 2016-03-17 15:09:34 -07:00
.gitignore crypto: rsa - add .gitignore for crypto/*.-asn1.[ch] files 2015-06-25 23:29:24 +08:00
842.c crypto: 842 - change 842 alg to use software 2015-05-11 15:06:43 +08:00
ablk_helper.c crypto: cryptd - process CRYPTO_ALG_INTERNAL 2015-03-31 21:21:04 +08:00
ablkcipher.c crypto: skcipher - remove unused header cpumask.h 2016-06-07 18:41:53 +08:00
aead.c crypto: aead - Remove CRYPTO_ALG_AEAD_NEW flag 2015-08-17 16:53:53 +08:00
aes_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
af_alg.c crypto: af_alg - Forbid bind(2) when nokey child sockets are present 2016-01-18 18:16:33 +08:00
ahash.c crypto: hash - Fix page length clamping in hash walk 2016-05-05 14:27:04 +08:00
akcipher.c crypto: akcipher - add akcipher declarations needed by templates. 2015-12-09 20:03:57 +08:00
algapi.c crypto: api - Add crypto_type_has_alg helper 2016-01-25 22:42:12 +08:00
algboss.c crypto: algboss - Remove reference to nivaead 2015-08-17 16:53:41 +08:00
algif_aead.c crypto: af_alg - add async support to algif_aead 2016-04-05 20:35:41 +08:00
algif_hash.c crypto: algif_hash - wait for crypto_ahash_init() to complete 2016-01-30 22:05:15 +08:00
algif_rng.c crypto: algif_rng - Remove obsolete const-removal cast 2015-04-22 09:30:21 +08:00
algif_skcipher.c crypto: algif_skcipher - Do not set MAY_BACKLOG on the async path 2016-02-06 15:23:55 +08:00
ansi_cprng.c crypto: ansi_cprng - Convert to new rng interface 2015-04-22 09:30:18 +08:00
anubis.c
api.c crypto: api - Only abort operations on fatal signal 2015-10-20 21:59:25 +08:00
arc4.c
authenc.c crypto: aead - Remove CRYPTO_ALG_AEAD_NEW flag 2015-08-17 16:53:53 +08:00
authencesn.c crypto: aead - Remove CRYPTO_ALG_AEAD_NEW flag 2015-08-17 16:53:53 +08:00
blkcipher.c crypto: skcipher - Copy iv from desc even for 0-len walks 2015-12-09 20:16:22 +08:00
blowfish_common.c
blowfish_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
camellia_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
cast5_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
cast6_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
cast_common.c
cbc.c
ccm.c crypto: replace scatterwalk_sg_chain with sg_chain 2015-08-17 08:12:54 -06:00
chacha20_generic.c crypto: chacha20 - Export common ChaCha20 helpers 2015-07-17 21:20:21 +08:00
chacha20poly1305.c crypto: chacha20poly1305 - Skip encryption/decryption for 0-len 2015-12-09 20:16:04 +08:00
chainiv.c crypto: chainiv - Offer normal cipher functionality without RNG 2015-06-22 15:49:28 +08:00
cipher.c
cmac.c
compress.c
crc32_generic.c crypto: crc32 - Rename generic implementation 2016-01-30 22:11:22 +08:00
crc32c_generic.c crypto: crc32c - Fix crc32c soft dependency 2016-01-19 15:52:10 +08:00
crct10dif_common.c
crct10dif_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
cryptd.c crypto: cryptd - Assign statesize properly 2015-12-04 22:29:53 +08:00
crypto_engine.c crypto: engine - Introduce the block request crypto engine framework 2016-02-01 22:27:02 +08:00
crypto_null.c crypto: null - Add default null skcipher 2015-05-22 11:25:55 +08:00
crypto_user.c crypto: user - no parsing of CRYPTO_MSG_GETALG 2016-05-31 16:41:47 +08:00
crypto_wq.c
ctr.c
cts.c crypto: cts - Weed out non-CBC algorithms 2015-01-20 14:44:15 +11:00
deflate.c
des_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
drbg.c crypto: drbg - use CTR AES instead of ECB AES 2016-06-15 17:07:53 +08:00
ecb.c
echainiv.c crypto: echainiv - Use generic geniv init/exit helpers 2015-08-17 16:53:46 +08:00
eseqiv.c crypto: eseqiv - Offer normal cipher functionality without RNG 2015-06-22 15:49:28 +08:00
fcrypt.c
fips.c crypto: fips - Move fips_enabled sysctl into fips.c 2015-04-23 14:18:09 +08:00
gcm.c Merge branch 'for-4.3/sg' of git://git.kernel.dk/linux-block 2015-09-02 13:22:38 -07:00
gf128mul.c
ghash-generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
hash_info.c keys, trusted: select hash algorithm for TPM2 chips 2015-12-20 15:27:12 +02:00
hmac.c
internal.h crypto: api - Add crypto_type_has_alg helper 2016-01-25 22:42:12 +08:00
jitterentropy-kcapi.c crypto: jitterentropy - remove unnecessary information from a comment 2015-10-14 22:23:16 +08:00
jitterentropy.c crypto: jitterentropy - Delete unnecessary checks before the function call "kzfree" 2015-06-25 23:18:33 +08:00
Kconfig crypto: drbg - use CTR AES instead of ECB AES 2016-06-15 17:07:53 +08:00
keywrap.c crypto: keywrap - memzero the correct memory 2016-02-01 22:27:05 +08:00
khazad.c
lrw.c
lz4.c
lz4hc.c
lzo.c crypto: lzo - get rid of superfluous __GFP_REPEAT 2016-04-15 22:36:36 +08:00
Makefile crypto: engine - Introduce the block request crypto engine framework 2016-02-01 22:27:02 +08:00
mcryptd.c crypto: mcryptd - Fix load failure 2016-01-30 22:11:20 +08:00
md4.c
md5.c crypto: hash - add zero length message hash for shax and md5 2015-12-22 20:43:35 +08:00
memneq.c
michael_mic.c
pcbc.c
pcrypt.c crypto: aead - Remove CRYPTO_ALG_AEAD_NEW flag 2015-08-17 16:53:53 +08:00
poly1305_generic.c crypto: poly1305 - Export common Poly1305 helpers 2015-07-17 21:20:26 +08:00
proc.c crypto: fips - Move fips_enabled sysctl into fips.c 2015-04-23 14:18:09 +08:00
ripemd.h
rmd128.c
rmd160.c
rmd256.c
rmd320.c
rng.c crypto: rng - Do not free default RNG when it becomes unused 2015-06-22 15:49:18 +08:00
rsa-pkcs1pad.c crypto: rsa-pkcs1pad - fix dst len 2016-04-15 22:13:55 +08:00
rsa.c crypto: rsa - RSA padding algorithm 2015-12-09 20:03:57 +08:00
rsa_helper.c crypto: akcipher - Changes to asymmetric key API 2015-10-14 22:23:16 +08:00
rsaprivkey.asn1 crypto: akcipher - Changes to asymmetric key API 2015-10-14 22:23:16 +08:00
rsapubkey.asn1 crypto: akcipher - Changes to asymmetric key API 2015-10-14 22:23:16 +08:00
salsa20_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
scatterwalk.c crypto: scatterwalk - Hide PageSlab call to optimise away flush_dcache_page 2015-06-03 10:51:25 +08:00
seed.c
seqiv.c crypto: seqiv - Use generic geniv init/exit helpers 2015-08-17 16:53:46 +08:00
serpent_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
sha1_generic.c crypto: hash - add zero length message hash for shax and md5 2015-12-22 20:43:35 +08:00
sha256_generic.c crypto: hash - add zero length message hash for shax and md5 2015-12-22 20:43:35 +08:00
sha512_generic.c crypto: sha512-generic - move to generic glue implementation 2015-04-10 21:39:41 +08:00
shash.c Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-03-17 11:22:54 -07:00
skcipher.c crypto: skcipher - Add default key size helper 2016-01-25 22:42:11 +08:00
tcrypt.c crypto: tcrypt - Use ahash 2016-02-06 15:33:08 +08:00
tcrypt.h crypto: tcrypt - Add ChaCha20/Poly1305 speed tests 2015-07-17 21:20:20 +08:00
tea.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
testmgr.c Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-05-17 09:33:39 -07:00
testmgr.h crypto: compress - remove unused pcomp interface 2016-01-27 20:36:24 +08:00
tgr192.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
twofish_common.c
twofish_generic.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
vmac.c
wp512.c crypto: add missing crypto module aliases 2015-01-13 22:29:11 +11:00
xcbc.c
xor.c
xts.c crypto: xts - consolidate sanity check for keys 2016-02-17 04:07:51 +08:00