SA2UL Module

Table of Contents

• Block diagram
  • Examples
  • Sa2ul Crypto
• Directory Structure
• See Also

The SA2_UL subsystem is designed to provide low-cost hardware cryptographic acceleration.

Block diagram

Sa2ul block diagram

Examples

Here user can initiate operations like

• Secure Hash Algorithms
  • SHA256, SHA512
• Hash-based Message Authentication Code
  • HMAC SHA-256, HMAC SHA-512, HMAC SHA1
• Advanced Encryption Standard
  • AES-CBC(128/256)(Cipher Block Chaining)
  • AES-ECB(128/256)(Electronic Code Book)
  • AES-CMAC(128/256)(Cipher-based Message Authentication Code)
• RNG(Random number generator)
• PKA(Supports Public-key accelerator)

Sa2ul Crypto

• Sa2ul performs
  • Initialize Sa2ul HW engine,
  • Initialize pkt DMA,
  • Set up Tx and Rx channels
  • Secure Context Allocation
  • Secure context process (Push, Pop)
  • Hmac Ipad and opad Calculation
  • Free the secure context configuration
  • Setup the SA2UL RNG module.
  • Read the random numbers and stored into the output buffer
  • PKA RSA Encryption and Decryption
  • PKA RSA Signing and Verification

Directory Structure

Given below is a overview of the directory structure to help you navigate the Crypto structure.

Folder/Files	Description
source/security/crypto	Contains Crypto driver files
source/security/crypto/sa2ul	Contains Sa2ul driver files
examples/security	Contains Crypto examples

See Also

• SA2UL
• PKA