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Asymmetric Public Key Cryptography IP

RSA and ECC are public-key cryptosystems (the encryption key is public while the decryption key is private) widely used for secure data transmission.

Secure-IC’s Public Key Cryptography (PKC) IP provides comprehensive RSA encryption / decryption / signature / verification functionalities with hardware acceleration and ECC-based cryptography including ECDSA, SM2, ECIES, ECDH, etc., with hardware acceleration.

Secure-IC’s Public Key Cryptography IP is composed of three parts

  • A hardware accelerator and its dedicated RAM.
  • A RSA software library running on the host CPU.
  • A ECC software library running on the host CPU.

 

This CPU can be the main CPU or a dedicated CPU. Secure-IC is able to provide this dedicated CPU.

The figure below shows the block diagram: the hardware accelerator, whose interface is described in the following figure, and the two portable software libraries.

Asymmetric Crypto

Secure-IC’s portfolio includes the following supported protocols:

  • RSASSA-PKCS1 v1.5
  • RSAES-PKCS1 v1.5
  • RSASSA-PSS
  • RSAES-OAEP
  • ECDSA
  • ECDH/ECDHE
  • ECIES
  • EdDSA
  • SM2

 

Asymmetric Cryptography IP offers the following features:

  • Constant time of the basic arithmetic unit: protection against timing attacks.
  • Regular modular exponentiation (RSA): protection against SPA.
  • Regular ECSM: protection against SPA.
  • Protection against CPA and collision attacks.
  • Protection against Address-bit CPA.
  • Protection against fault attacks.
  • Available with different levels of protection.
  • Ready for security certification (including Common Criteria).
  • Secure-IC’s VirtualyzrTM is the only available tool on the market to perform security checks based on pre-silicon design information. All our IPs have successfully passed the security test.
  • 1024-bit to 4096-bit key size supported for RSA.
  • Up to 521-bit key size supported for ECC.
  • ECC supported curves: NIST P curves, SM2 curves, BSI curves, ANSSI curves, SECG curves, etc.
  • Hybrid hardware-software tunable solution.
  • AMBA (APB, AHB, AXI) interface
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