Cryptographic library for encryption and decryption of Advanced Encryption Standard (AES) in ECB, CBC, OFB, CTR and GCM modes

Overview

The Software AES is a cryptographic library encrypting and decrypting 128-bit data blocks through a secure AES algorithm. The AES key length can be chosen among 128, 192 or 256 bits. The library supports the ECB (Electronic Code Book), CBC (Cipher Block Chaining), OFB (Output Feedback), CTR (Counter) and GCM (Galois/Counter) modes. The AES algorithm integrates state-of-the-art countermeasures against side-channel attacks.

Key Features

supported AES key sizes: 128, 192 and 256-bit
the AES algorithm is fully compliant the FIPS 196 standard
encryption and decryption in ECB, CBC, OFB, CTR or GCM mode
all the modes are fully compliant with the NIST SP 800-38A standard
GCM mode is fully compliant with the NIST SP 800-38D standard
core functions ASM-optimized for the targeted processor
highly customizable architecture: adjustable trade-off between performance, RAM footprint and security; the number of supported modes can be tuned
state-of-the-art countermeasures against SPA, DPA[1] and DFA attacks
typical characteristics of a Cortex-M3 implementation: small code size: 8 kBytes; small RAM footprint: 160 bytes; less than 80 kcycles to compute a secured AES encryption

Benefits

Secure implementation
FIPS 196 compliant
Compact code
Low RAM footprint
Hardened against SCA

Deliverables

C and Assembly source codes
C test vectors
compilation scripts (makefile)
design specification
documents for certifcations (FIPS, CC, EMV, etc.): complete list of countermeasures with references; implementation details

Technical Specifications

Maturity

Silicon proven

Availability

Available

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