News & Press
Green Hills Software Announces Additional
High Assurance Software Components for its Certified and Field-Proven
INTEGRITY-178B RTOS
The Most Trusted and Reliable Operating System in the World — Certified
to both RTCA/DO-178B Level A and EAL6+/High Robustness
AVIONICS USA, SAN DIEGO, CA—June 1, 2009 — Green
Hills Software, Inc., the world leader in certified safe
and secure real-time operating systems (RTOS), today announced the
availability of three new high assurance software components for its INTEGRITY®-178B real-time
operating system (RTOS): an RTCA/DO-178B Level A-compliant Partitioning
Journaling File System called PJFS-178B, an RTCA/DO-178B Level A-compliant
network stack, called IPFLITE, and an ARINC 615A dataloader.
The Journaling File System provides multiple INTEGRITY-178B partitions
with concurrent power-fail safe access to an underlying file system.
IPFLITE’s client/server architecture allows multiple applications
to access the underlying network stack that resides in a virtual INTEGRITY-178B
partition. PJFS-178B, IPFLITE and the ARINC 615A dataloader are available
as optional components for Green Hills Software’s industry-leading
INTEGRITY-178B operating system.
With the introduction of these additional high assurance components
for INTEGRITY-178B, Green Hills Software continues to widen its lead
over the second tier RTOS suppliers. This announcement also follows the
U.S. Government’s recent announcement that INTEGRITY-178B has been
certified to the highest security assurance level required by the U.S.
Government for operating systems – EAL6+/High Robustness. This
EAL6+ certification is the first of its kind, the highest Common Criteria
security level ever achieved for an operating system. Only an EAL6+ High
Robustness operating system is certified to protect classified information
and other high value resources from attack by hostile and well-funded
attackers. This is secure by anyone’s definition. The highest security
standard to which any other operating system is certified only protects
against "inadvertent or casual attempts to breach the system security." That
is not even close to secure by anyone’s definition.
With the new PJFS-178B file system, IPFLITE network stack and ARINC
615A dataloader, Green Hills Software now offers system developers and
integrators a single-source solution for their high assurance operating
system and related software components without relying on third party
software products or certification services. In contrast, alternative
RTOS products, unable to offer a single-source high assurance operating
system solution, can only suggest that a customer’s required DO-178B
Level A-compliant software components be obtained from their "partner
ecosystem." The facts are simple. A single-source solution from
an RTOS vendor, such as Green Hills Software, that does not rely on third
party products or certification services significantly reduces risk over
a "partner ecosystem" solution. RTOS vendors recommending a
file system from a third party supplier, cannot adequately assure the
successful integration and certification of all components on the customer’s
flight hardware, nor can they guarantee the correct operation and intended
behavior of the separately acquired components throughout the life cycle
of the customer’s airborne equipment.
Industry Perspective
As the first commercial partitioned operating system to be certified
to the FAA’s and EASA’s highest safety-critical level (RTCA/DO-178B
Level A) back in 2002, Green Hills Software has reliably continued
to evolve its INTEGRITY-178B technology by delivering a DO-178B Level
A-compliant RTOS for twenty-five different microprocessors, more than
all other major RTOS suppliers combined. Green Hills Software has continued
to meet customer’s critical deadlines reliably by providing them
with a true DO-178B Level A-compliant RTOS that is ready to run on
custom flight hardware with hardware specific certification evidence
that the customer can take full credit for, right out of the box. Other
RTOS vendors, claiming for years their ability to provide"certifiable" partitioned
operating systems, have failed to deliver their end product.
Driven by the increasing demand for software suppliers to comply with
government and industry-accepted safety and information assurance standards,
other RTOS suppliers are constantly announcing new and different high
assurance operating systems, whereas Green Hills Software has continued
to maintain and improve its hallmark operating system technology that
was first delivered in 1997.This approach has proven to strengthen the
Green Hills Software 12-year pedigree of its safe and secure operating
system technology for the high assurance computing marketplace.
About PJFS-178B
The PJFS-178B Client provides a standards-based interface that allows
a safety- or security-critical application to access the underlying
file system. The PJFS-178B Server handles PJFS-178B Client API requests,
manages access to the underlying storage device(s), and provides interfaces
to configure the file system as well as format and mount disks. The
PJFS-178B Server operates in one partition and communicates with one
or more PJFS-178B Clients. The PJFS-178B Client and PJFS-178B Server
can reside in the kernel or any virtual partition. The combined strength
and sophistication of INTEGRITY-178B and PJFS-178B allows the DO-178B
Level A-compliant host PJFS-178B file system to service multiple file
system clients at different safety levels in an ARINC 653 environment.
Additional Options for PJFS-178B
- Support for the ARINC 653 Part 2 File System Interface
This specification was developed by an ARINC-sponsored committee consisting
of avionic equipment vendors and operating system suppliers. The
specification defines a general-purpose file system interface that
provides support for file and directory services.
- Wear-Leveling Flash
The DO-178B Level A-compliant Wear-Leveling Flash (WLF) device is an
INTEGRITY-178B device that provides an interface to a physical hardware
storage device used to preserve data in a non-volatile storage medium.
The WLF architecture provides user access to sectors of flash memory
without requiring any knowledge of the physical layout of flash memory.
It reduces the wear on individual physical flash blocks by distributing
writes to flash memory across all available flash blocks. The WLF
includes bad block management and supports both NAND and NOR flash
devices.
- PJFS-178B can interface with the underlying storage device RAM disk
or an I/O device
About IPFLITE
The IPFLITE Client/Server architecture is based on RFC 791 and
768. The IPFLITE Client provides a BSD-style interface that can be used
to access IPFLITE’s network services. The IPFLITE Server includes
a Socket Server and an UDP/IP network stack. IPFLITE also contains a
Trivial File Transfer Protocol (TFTP) library that is based on RFC 1350,
2347, and 2348, and is compatible with both the IPFLITE network stack
and the PJFS-178B file system.
About the Green Hills ARINC 615A Dataloader
Green Hills Software’s dataloader protocol (DLP) library
implements the protocols specified in ARINC 615A-2 used to perform uploads
and downloads of data files. ARINC 615A-2 is an industry standard based
on TFTP and is widely used in avionics systems. The DLP library provides
the target side for interfacing to host-based ARINC 615A-2 dataloaders
such as TechSat's NetLoader as well as other host-based systems.
INTEGRITY: Proven, Deployed Technology
The INTEGRITY operating system includes a service history dating
back to 1997, when it was first adopted by critical U.S. defense systems
and commercial avionics that required absolute security and total reliability.
- Designed into dozens of aircraft including Boeing’s 787, C-17,
B-1B, B-52; Airbus’ A380 and A400M; Lockheed Martin’s F-16,
F-22, F-35, C-130J, P-3 and Orion Crew Exploration Vehicle; Sikorsky’s
S-92; Northrop Grumman’s B-2;
- Secured military and intelligence computers, network routers, mobile
devices, and radios;
- Received widespread adoption in medical, industrial control, automotive,
and telecommunications.
The Ultimate Open Platform
With its open standards, POSIX-conformant interface, and ability
to host arbitrary general purpose operating systems in virtual machines,
such as Windows and Linux, INTEGRITY can run more application software
than any other operating platform, while maintaining the absolute highest
level of security for critical components, algorithms, applications,
and subsystems. INTEGRITY enables solutions to many of the world’s
long-standing computer security problems, including safe Internet browsing
on corporate PCs; protection of critical enterprise servers; unhackable
digital rights management (DRM); and multi-level security for government
laptops, desktops, PDAs, and servers.
About Green Hills Software
Founded in 1982, Green Hills Software, Inc. is the technology leader
in device software optimization (DSO) and real-time operating systems
(RTOS) for 32- and 64-bit embedded systems. In 2008, the Green Hills
INTEGRITY-178B RTOS was the first and only operating system to be certified
by the NSA to EAL6+ High Robustness, the highest level of security ever
achieved. Our INTEGRITY® and velOSity™ real-time
operating systems, µ-velOSity™ microkernel, compilers, IPv6-ready
TCP/IP networking stacks, GateD® Layer 2 switching
and Layer 3 routing, MULTI® and AdaMULTI™ integrated
development environments, DoubleCheck™ integrated
static analyzer and TimeMachine™ tool
suite offer a complete development solution that addresses both deeply
embedded and high-reliability applications. Green Hills Software is headquartered
in Santa Barbara, CA, with European headquarters in the United Kingdom.
Visit Green Hills Software at www.ghs.com.
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