μrngd is OpenWrt's micro non-physical true random number generator based on timing jitter.
Using the Jitter RNG core, the rngd provides an entropy source that feeds into the Linux /dev/random device if its entropy runs low. It updates the /dev/random entropy estimator such that the newly provided entropy unblocks /dev/random. The seeding of /dev/random also ensures that /dev/urandom benefits from entropy. Especially during boot time, when the entropy of Linux is low, the Jitter RNGd provides a source of sufficient entropy. Signed-off-by: Petr Štetiar <yn...@true.cz> --- package/system/urngd/Makefile | 48 +++++++++++++++++++++++++++++++++++ package/system/urngd/files/urngd.init | 21 +++++++++++++++ 2 files changed, 69 insertions(+) create mode 100644 package/system/urngd/Makefile create mode 100755 package/system/urngd/files/urngd.init diff --git a/package/system/urngd/Makefile b/package/system/urngd/Makefile new file mode 100644 index 000000000000..95647487cbbf --- /dev/null +++ b/package/system/urngd/Makefile @@ -0,0 +1,48 @@ +include $(TOPDIR)/rules.mk + +PKG_NAME:=urngd +PKG_RELEASE:=1 + +PKG_SOURCE_PROTO:=git +PKG_SOURCE_URL=https://github.com/ynezz/openwrt-urngd +PKG_SOURCE_DATE:=2019-05-20 +PKG_SOURCE_VERSION:=7146f0c33c4f68883e60169066a4a863ae388fc5 +PKG_MIRROR_HASH:=839b1b23163bc907625ed6c6122faec9404cb72d8587ece796a9cec1422b6077 + +PKG_LICENSE:=GPL-2.0 BSD-3-Clause +PKG_LICENSE_FILES:= + +PKG_BUILD_PARALLEL:=1 + +include $(INCLUDE_DIR)/package.mk +include $(INCLUDE_DIR)/cmake.mk + +define Package/$(PKG_NAME) + SECTION:=utils + CATEGORY:=Base system + TITLE:=OpenWrt non-physical true random number generator based on timing jitter + DEPENDS:=+libubox +endef + +define Package/$(PKG_NAME)/description + μrngd is OpenWrt's micro non-physical true random number generator based on + timing jitter. + + Using the Jitter RNG core, the rngd provides an entropy source that feeds into + the Linux /dev/random device if its entropy runs low. It updates the + /dev/random entropy estimator such that the newly provided entropy unblocks + /dev/random. + + The seeding of /dev/random also ensures that /dev/urandom benefits from + entropy. Especially during boot time, when the entropy of Linux is low, the + Jitter RNGd provides a source of sufficient entropy. +endef + +define Package/$(PKG_NAME)/install + $(INSTALL_DIR) $(1)/etc/init.d + $(INSTALL_BIN) ./files/$(PKG_NAME).init $(1)/etc/init.d/$(PKG_NAME) + $(INSTALL_DIR) $(1)/sbin + $(INSTALL_BIN) $(PKG_BUILD_DIR)/$(PKG_NAME) $(1)/sbin/$(PKG_NAME) +endef + +$(eval $(call BuildPackage,$(PKG_NAME))) diff --git a/package/system/urngd/files/urngd.init b/package/system/urngd/files/urngd.init new file mode 100755 index 000000000000..ab1d5cf9d46a --- /dev/null +++ b/package/system/urngd/files/urngd.init @@ -0,0 +1,21 @@ +#!/bin/sh /etc/rc.common + +START=00 + +USE_PROCD=1 +NAME=urngd +PROG=/sbin/urngd + +start_service() { + procd_open_instance + procd_set_param command "$PROG" + procd_close_instance +} + +stop() { + service_stop $PROG +} + +reload() { + service_reload $PROG +} -- 1.9.1 _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
