RSA SOFTWARE LIBRARY IP

 

The RSA Software Library IP is a library of embedded software optimized for maximum throughput and minimum memory utilization. The RSA Software Library IP include high-end software counter-measures against side-channel attacks and fault-injection attacks.

 

The RSA Software Library IP can run in stand-alone mode and can also run in conjunction with INVIA's Modular Exponentiation IP that provides hardware acceleration of  cryptographic calculations. It is recommanded to use the Modular Exponentiation IP with processors that do not have a 32x32 multiplier.

 

The cryptographic functions performed by the RSA Software Library IP are RSA  ciphering, deciphering, signature verification and signature generation. The RSA Software Library benefits from the Chinese Remainder Theorem (CRT) for maximum efficiency. Note that the countermeasures against fault-injection are very efficient even when the CRT is used during calculation.

 

The RSA Software Library is performance-optimized for the SPARC V8 LEON2 MCU and  for the ARM CORTEX M3 MCU. It is delivered as a binary or in assembly source code. It is structured as independent API modules

 

WHAT's COOLHighlights

 

  • Available on ARM CORTEX M3 and SPARC LEON2
  • Performance optimized assemby code for embedded processors
  • Code size : 8kB on ARM Cortex M3

 

Security featuresSecurity

  • Designed to resist the most advanced techniques of side-channel analysis and fault-injection attacks 
  • Processing atomicity, data whitening, randomization(*) against side-channel attacks
  • CRT recombination and verification against fault-injection attacks

 

DeliverablesDeliverables

  • Binaries or Assembly source code for RSA functions
  • Binaries or Assembly source code for low-level API leaf functions
  • C source code examples of use of the libraries

 

 

(*) : third party IP may apply - please contact us for more information.

 

Optimized for ARM Cortex

 

 

Did you know ?

 

 

 

A fault-injection attack, also known as perturbation attack,  modifies the normal behavior of the circuit in a way that let the attackers derive secret information.  Cryptosystems such as RSA and DES are subject to such attacks. Non Volatile Memories  are also subject to such attacks.



Faults can be injected in the supply voltage (e.g. glitch), in the external clock,  by adjusting the temperature and with laser beam and X-Rays. The first academic paper related to fault-injection attacks on RSA cryptosystems was published in 2001.