linux/drivers/crypto
Łukasz Stelmach 99c9acfe59 crypto: exynos - Reseed PRNG after generating 2^16 random bytes
Reseed PRNG after reading 65 kB of randomness. Although this may reduce
performance, in most cases the loss is not noticeable. Also the time
based threshold for reseeding is changed to one second. Reseeding is
performed whenever either limit is exceeded.

Reseeding of a PRNG does not increase entropy, but it helps preventing
backtracking the internal state of the device from its output sequence,
and hence, prevents potential attacker from predicting numbers to be
generated.

Signed-off-by: Łukasz Stelmach <l.stelmach@samsung.com>
Reviewed-by: Stephan Mueller <smueller@chronox.de>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-12-22 19:52:43 +11:00
..
amcc crypto: crypto4xx - add aes-gcm support 2017-10-12 22:55:22 +08:00
axis crypto: artpec6 - set correct iv size for gcm(aes) 2017-12-22 19:52:40 +11:00
bcm crypto: drivers - remove duplicate includes 2017-12-22 19:29:01 +11:00
caam crypto: caam/qi - use correct print specifier for size_t 2017-12-11 22:36:57 +11:00
cavium crypto: drivers - remove duplicate includes 2017-12-22 19:29:01 +11:00
ccp crypto: drivers - remove duplicate includes 2017-12-22 19:29:01 +11:00
chelsio crypto: chelsio - fix a type cast error 2017-12-22 19:29:02 +11:00
inside-secure crypto: inside-secure - remove null check before kfree 2017-09-22 17:43:25 +08:00
marvell Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-11-14 10:52:09 -08:00
mediatek crypto: mediatek - move to generic async completion 2017-11-03 22:11:23 +08:00
nx crypto: nx - fix spelling mistake: "availavle" -> "available" 2017-11-29 17:33:25 +11:00
qat crypto: qat - reduce stack size with KASAN 2017-12-22 19:52:39 +11:00
qce Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-11-14 10:52:09 -08:00
rockchip License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
stm32 crypto: stm32 - fix module device table name 2017-12-11 22:36:57 +11:00
sunxi-ss crypto: sun4i-ss - support the Security System PRNG 2017-07-18 17:50:55 +08:00
ux500 crypto: drop unnecessary return statements 2017-09-22 17:43:28 +08:00
virtio Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-11-14 10:52:09 -08:00
vmx Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-11-14 10:52:09 -08:00
atmel-aes-regs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atmel-aes.c crypto: atmel - remove empty functions 2017-11-06 14:45:05 +08:00
atmel-authenc.h crypto: atmel-authenc - add support to authenc(hmac(shaX), Y(aes)) modes 2017-02-03 18:16:14 +08:00
atmel-ecc.c crypto: atmel-ecc - fix signed integer to u8 assignment 2017-08-03 13:47:23 +08:00
atmel-ecc.h crypto: atmel-ecc - introduce Microchip / Atmel ECC driver 2017-07-18 17:50:58 +08:00
atmel-sha-regs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atmel-sha.c crypto: atmel - remove useless irq init 2017-11-03 22:11:24 +08:00
atmel-tdes-regs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
atmel-tdes.c crypto: atmel - remove empty functions 2017-11-06 14:45:05 +08:00
bfin_crc.c crypto: bfin_crc - Fix format printing warning 2016-12-27 17:50:51 +08:00
bfin_crc.h crypto: bfin_crc - Remove unneeded linux/miscdevice.h include 2016-12-27 17:50:51 +08:00
exynos-rng.c crypto: exynos - Reseed PRNG after generating 2^16 random bytes 2017-12-22 19:52:43 +11:00
geode-aes.c crypto: geode-aes - fixed coding style warnings and error 2017-07-18 18:15:57 +08:00
geode-aes.h
hifn_795x.c crypto: hifn_795x - Fix a memory leak in the error handling path of 'hifn_probe()' 2017-11-29 17:33:30 +11:00
img-hash.c crypto: img-hash - remove unnecessary static in img_hash_remove() 2017-08-03 13:47:18 +08:00
ixp4xx_crypto.c crypto: drop unnecessary return statements 2017-09-22 17:43:28 +08:00
Kconfig crypto: s5p-sss - Add HASH support for Exynos 2017-11-03 22:11:25 +08:00
Makefile Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2017-11-14 10:52:09 -08:00
mxc-scc.c crypto: mxc-scc - fix error code in mxc_scc_probe() 2017-07-18 17:50:54 +08:00
mxs-dcp.c crypto: mxs-dcp - print error message on platform_get_irq failure 2017-07-18 17:50:54 +08:00
n2_asm.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
n2_core.c crypto: n2 - remove null check before kfree 2017-09-22 17:43:25 +08:00
n2_core.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
omap-aes-gcm.c crypto: omap-aes - pr_err() strings should end with newlines 2017-10-12 22:54:51 +08:00
omap-aes.c crypto: omap - use of_device_get_match_data 2017-10-07 12:10:35 +08:00
omap-aes.h crypto: omap-aes - Add support for GCM mode 2017-06-10 12:04:19 +08:00
omap-crypto.c crypto: omap - add base support library for common routines 2017-06-10 12:04:15 +08:00
omap-crypto.h crypto: omap - add base support library for common routines 2017-06-10 12:04:15 +08:00
omap-des.c crypto: omap - use of_device_get_match_data 2017-10-07 12:10:35 +08:00
omap-sham.c crypto: omap - use of_device_get_match_data 2017-10-07 12:10:35 +08:00
padlock-aes.c crypto: padlock-aes - constify x86_cpu_id 2017-09-22 17:43:20 +08:00
padlock-sha.c crypto: padlock-sha - constify x86_cpu_id 2017-09-22 17:43:20 +08:00
picoxcell_crypto_regs.h
picoxcell_crypto.c crypto: Convert timers to use timer_setup() 2017-11-06 12:49:44 -08:00
s5p-sss.c crypto: s5p-sss - Remove a stray tab 2017-11-29 16:43:50 +11:00
sahara.c crypto: sahara - constify platform_device_id 2017-08-22 14:54:53 +08:00
talitos.c crypto: talitos - move to generic async completion 2017-11-03 22:11:22 +08:00
talitos.h crypto: talitos - chain in buffered data for ahash on SEC1 2017-10-12 22:55:38 +08:00