drivers/crypto: Move dev_urandom.c into new crypto folder.
This commit is contained in:
Xiang Xiao
Gregory Nutt
parent
5f28be71e5
commit
ff1cba6ab5
@ -22,78 +22,7 @@ config DEV_ZERO
|
||||
bool "Enable /dev/zero"
|
||||
default n
|
||||
|
||||
config ARCH_HAVE_RNG
|
||||
bool
|
||||
|
||||
config DEV_RANDOM
|
||||
bool "Enable /dev/random"
|
||||
default y
|
||||
depends on ARCH_HAVE_RNG
|
||||
---help---
|
||||
Enable support for /dev/urandom provided by a hardware TRNG.
|
||||
|
||||
config DEV_URANDOM
|
||||
bool "Enable /dev/urandom"
|
||||
default n
|
||||
---help---
|
||||
Enable support for /dev/urandom provided by either a hardware TRNG or
|
||||
by a software PRNG implementation.
|
||||
|
||||
NOTE: This option may not be cryptographially secure and should not
|
||||
be enabled if you are concerned about cyptographically secure
|
||||
pseudo-random numbers (CPRNG) and do not know the characteristics
|
||||
of the software PRNG implementation!
|
||||
|
||||
if DEV_URANDOM
|
||||
|
||||
choice
|
||||
prompt "/dev/urandom algorithm"
|
||||
default DEV_URANDOM_ARCH if ARCH_HAVE_RNG
|
||||
default DEV_URANDOM_XORSHIFT128 if !ARCH_HAVE_RNG
|
||||
|
||||
config DEV_URANDOM_XORSHIFT128
|
||||
bool "xorshift128"
|
||||
---help---
|
||||
xorshift128 is a pseudorandom number generator that is simple,
|
||||
portable, and can also be used on 8-bit and 16-bit MCUs.
|
||||
|
||||
NOTE: Not cyptographically secure
|
||||
|
||||
config DEV_URANDOM_CONGRUENTIAL
|
||||
bool "Congruential"
|
||||
---help---
|
||||
Use the same congruential general used with srand(). This algorithm
|
||||
is computationally more intense and uses double precision floating
|
||||
point. NOTE: Good randomness from the congruential generator also
|
||||
requires that you also select CONFIG_LIB_RAND_ORDER > 2
|
||||
|
||||
NOTE: Not cyptographically secure
|
||||
|
||||
config DEV_URANDOM_RANDOM_POOL
|
||||
bool "Entropy pool"
|
||||
depends on CRYPTO_RANDOM_POOL
|
||||
---help---
|
||||
Use the entropy pool CPRNG output for urandom algorithm.
|
||||
|
||||
NOTE: May or may not be cyptographically secure, depending upon the
|
||||
quality entropy available to entropy pool.
|
||||
|
||||
config DEV_URANDOM_ARCH
|
||||
bool "Architecture-specific"
|
||||
depends on ARCH_HAVE_RNG
|
||||
---help---
|
||||
The implementation of /dev/urandom is provided in archtecture-
|
||||
specific logic using hardware TRNG logic. architecture-specific
|
||||
logic must provide the whole implementation in this case, including
|
||||
the function devurandom_register(). In this case, /dev/urandom may
|
||||
refer to the same driver as /dev/random.
|
||||
|
||||
NOTE: May or may not be cyptographically secure, depending upon the
|
||||
implementation.
|
||||
|
||||
endchoice # /dev/urandom algorithm
|
||||
endif # DEV_URANDOM
|
||||
|
||||
source drivers/crypto/Kconfig
|
||||
source drivers/loop/Kconfig
|
||||
|
||||
menu "Buffering"
|
||||
|
||||
@ -53,6 +53,7 @@ include analog$(DELIM)Make.defs
|
||||
include audio$(DELIM)Make.defs
|
||||
include bch$(DELIM)Make.defs
|
||||
include can$(DELIM)Make.defs
|
||||
include crypto$(DELIM)Make.defs
|
||||
include i2c$(DELIM)Make.defs
|
||||
include input$(DELIM)Make.defs
|
||||
include ioexpander$(DELIM)Make.defs
|
||||
@ -98,11 +99,6 @@ ifeq ($(CONFIG_PWM),y)
|
||||
CSRCS += pwm.c
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_DEV_URANDOM),y)
|
||||
ifneq ($(CONFIG_DEV_URANDOM_ARCH),y)
|
||||
CSRCS += dev_urandom.c
|
||||
endif
|
||||
endif
|
||||
endif # CONFIG_NFILE_DESCRIPTORS != 0
|
||||
|
||||
AOBJS = $(ASRCS:.S=$(OBJEXT))
|
||||
|
||||
@ -60,6 +60,9 @@ contactless/
|
||||
communication devices with other similar peers, but couplers/interfaces
|
||||
to contactless cards and tags.
|
||||
|
||||
crypto/
|
||||
Contains crypto drivers and support logic.
|
||||
|
||||
eeprom/
|
||||
An EEPROM is a form of Memory Technology Device (see drivers/mtd).
|
||||
EEPROMs are non-volatile memory like FLASH, but differ in underlying
|
||||
|
||||
76
drivers/crypto/Kconfig
Normal file
76
drivers/crypto/Kconfig
Normal file
@ -0,0 +1,76 @@
|
||||
#
|
||||
# For a description of the syntax of this configuration file,
|
||||
# see the file kconfig-language.txt in the NuttX tools repository.
|
||||
#
|
||||
|
||||
config ARCH_HAVE_RNG
|
||||
bool
|
||||
|
||||
config DEV_RANDOM
|
||||
bool "Enable /dev/random"
|
||||
default y
|
||||
depends on ARCH_HAVE_RNG
|
||||
---help---
|
||||
Enable support for /dev/random provided by a hardware TRNG.
|
||||
|
||||
config DEV_URANDOM
|
||||
bool "Enable /dev/urandom"
|
||||
default n
|
||||
---help---
|
||||
Enable support for /dev/urandom provided by either a hardware TRNG or
|
||||
by a software PRNG implementation.
|
||||
|
||||
NOTE: This option may not be cryptographially secure and should not
|
||||
be enabled if you are concerned about cyptographically secure
|
||||
pseudo-random numbers (CPRNG) and do not know the characteristics
|
||||
of the software PRNG implementation!
|
||||
|
||||
if DEV_URANDOM
|
||||
|
||||
choice
|
||||
prompt "/dev/urandom algorithm"
|
||||
default DEV_URANDOM_ARCH if ARCH_HAVE_RNG
|
||||
default DEV_URANDOM_XORSHIFT128 if !ARCH_HAVE_RNG
|
||||
|
||||
config DEV_URANDOM_XORSHIFT128
|
||||
bool "xorshift128"
|
||||
---help---
|
||||
xorshift128 is a pseudorandom number generator that is simple,
|
||||
portable, and can also be used on 8-bit and 16-bit MCUs.
|
||||
|
||||
NOTE: Not cyptographically secure
|
||||
|
||||
config DEV_URANDOM_CONGRUENTIAL
|
||||
bool "Congruential"
|
||||
---help---
|
||||
Use the same congruential general used with srand(). This algorithm
|
||||
is computationally more intense and uses double precision floating
|
||||
point. NOTE: Good randomness from the congruential generator also
|
||||
requires that you also select CONFIG_LIB_RAND_ORDER > 2
|
||||
|
||||
NOTE: Not cyptographically secure
|
||||
|
||||
config DEV_URANDOM_RANDOM_POOL
|
||||
bool "Entropy pool"
|
||||
depends on CRYPTO_RANDOM_POOL
|
||||
---help---
|
||||
Use the entropy pool CPRNG output for urandom algorithm.
|
||||
|
||||
NOTE: May or may not be cyptographically secure, depending upon the
|
||||
quality entropy available to entropy pool.
|
||||
|
||||
config DEV_URANDOM_ARCH
|
||||
bool "Architecture-specific"
|
||||
depends on ARCH_HAVE_RNG
|
||||
---help---
|
||||
The implementation of /dev/urandom is provided in archtecture-
|
||||
specific logic using hardware TRNG logic. architecture-specific
|
||||
logic must provide the whole implementation in this case, including
|
||||
the function devurandom_register(). In this case, /dev/urandom may
|
||||
refer to the same driver as /dev/random.
|
||||
|
||||
NOTE: May or may not be cyptographically secure, depending upon the
|
||||
implementation.
|
||||
|
||||
endchoice # /dev/urandom algorithm
|
||||
endif # DEV_URANDOM
|
||||
46
drivers/crypto/Make.defs
Normal file
46
drivers/crypto/Make.defs
Normal file
@ -0,0 +1,46 @@
|
||||
############################################################################
|
||||
# drivers/crypto/Make.defs
|
||||
#
|
||||
# Copyright (C) 2017 Pinecone Inc. All rights reserved.
|
||||
# Author: Xiang Xiao <xiaoxiang@pinecone.net>
|
||||
#
|
||||
# Redistribution and use in source and binary forms, with or without
|
||||
# modification, are permitted provided that the following conditions
|
||||
# are met:
|
||||
#
|
||||
# 1. Redistributions of source code must retain the above copyright
|
||||
# notice, this list of conditions and the following disclaimer.
|
||||
# 2. Redistributions in binary form must reproduce the above copyright
|
||||
# notice, this list of conditions and the following disclaimer in
|
||||
# the documentation and/or other materials provided with the
|
||||
# distribution.
|
||||
# 3. Neither the name NuttX nor the names of its contributors may be
|
||||
# used to endorse or promote products derived from this software
|
||||
# without specific prior written permission.
|
||||
#
|
||||
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
# POSSIBILITY OF SUCH DAMAGE.
|
||||
#
|
||||
############################################################################
|
||||
|
||||
ifeq ($(CONFIG_DEV_URANDOM),y)
|
||||
ifneq ($(CONFIG_DEV_URANDOM_ARCH),y)
|
||||
CSRCS += dev_urandom.c
|
||||
endif
|
||||
endif
|
||||
|
||||
# Include crypto device driver build support
|
||||
|
||||
DEPPATH += --dep-path crypto
|
||||
VPATH += :crypto
|
||||
CFLAGS += ${shell $(INCDIR) $(INCDIROPT) "$(CC)" $(TOPDIR)$(DELIM)drivers$(DELIM)crypto}
|
||||
@ -1,5 +1,5 @@
|
||||
/****************************************************************************
|
||||
* drivers/dev_urandom.c
|
||||
* drivers/crypto/dev_urandom.c
|
||||
*
|
||||
* Copyright (C) 2016 Gregory Nutt. All rights reserved.
|
||||
* Author: David S. Alessio
|
||||
Loading…
Reference in New Issue
Block a user