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 TCP/IP Products
uSSL™ Secure Server and Client
Overview
The Cypherbridge Systems uSSL security
stack implements a standards based
solution to achieve chip-to-chip and chip-to-server
interoperability across wired and
wireless networks.
With the advent of the connected device
era, classic SSL/TLS is just the beginning.
uSSL is the ideal solution for a wide variety
of security applications for
industrial, point-of-sale, instrumentation
and metering, machine-to-machine, and
standalone systems where a small footprint,
standards based solution is
called for.
An application specific subset of uSSL
security features can be tailored to
support simple client authentication, RSA
based encryption, in-memory or in-file
bulk security, boot loader flash image
hash verification, and a wide range of
application-specific requirements.
Figure 1: uSSL block diagram
Product Integrity
MCU platforms are pervasive, and it has
become vital to provide a comprehensive
security solution that can keep pace with
the so-called internet of devices.
Embedded products including the bootloader,
firmware and programmable logic,
are vulnerable to reverse engineering,
unauthorized use, and remote access and
communication security risks.
System quality may become
compromised in industrial and
consumer applications, not due to
classic product reliability, but instead
due to product integrity. This has led to
new requirements in product planning
and development to integrate security
features in MCU based designs. By
including standards based security
features, these risks can be greatly
reduced to increase product integrity,
improve field support and system
availability, enhance interoperability,
and increase product lifecycle ROI.
Accelerate Time-to-Market
Time-consuming proprietary solutions
and desktop SSL derived libraries
pose significant compromises when it
comes to footprint and memory,
typically relying on ANSI C memory
heap which can result in memory
thrashing and fragmentation when
used for SSL processing. This can
lead to problems in device-level
applications where performance,
duration and reliability is paramount.
With its designed-for-chip source code,
the uSSL memory management layer
optimizes dynamic memory allocation,
avoiding roll-your-own desktop SSL
compromises. uSSL is thread-neutral,
and can be integrated with RTOS task
and embedded heap APIs.
User configurable for specific features,
uSSL achieves industry leading small
footprint for small to medium memory
models where flash and RAM must be
carefully balanced.
uSSL design wins have achieved
system and information integrity on
multiple MCU families including
payment card applications. Accelerate
your application time-to-market with
uSSL.
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Features
- SSL 3.0/TLS 1.2 server and client protocol support
- Supported crypto and hash functions include: RSA, PKCSv1.5, DES, 3DES, AES, RC4, SHA1, SHA2, MD2, MD4, MD5, RNG
- X.509 certificate processing for signing and authentication
- Memory management layer with dynamic buffer trace
- MCU platform support layer
- Network interface layer to 3rd party RTOS and TCP/IP stack
- Available projects for tool chains including IAR, GCC, Code Composer Studio
- Interoperates with Windows RSACryptoService Provider and Linux Apache SSL
- Complete self-test functions and sample application code
- Utilities including PKI key generator import to uSSL
- Portable ANSI-C small RAM and ROM footprint targeted to low-power 16 and 32 bit microcontrollers
- Royalty-free source code license
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