Scalable RSA and Elliptic Curve Accelerator
RSA5X implements by far the most time-consuming operation of the RSA cryptography: so called “exponentiation” to enable low-power operation of the battery-powered devices.
RSA5X also can perform addition and multiplication in the GF(p) and GF(2n) Galois fields under microprogram control, allowing for flexible elliptic curve cryptography (ECC) calculation on arbitrary curves..
The design is fully synchronous and available in multiple configurations varying in bus widths and throughput.
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Block Diagram of the Scalable RSA and Elliptic Curve Accelerator

RSA IP
- Tunable Public Key Cryptographic (RSA, ECDSA, SM2, Diffie-Hellman) accelerator - optional SCA protection
- Public Key Accelerator (PKA): ECC/RSA ALU PKA
- RSA signature verification, compact version
- 100% Secure Cryptographic System for RSA, Diffie-Hellman and ECC with AMBA AHB, AXI4 and APB
- RSA Public Key Exponentiation Accelerator
- Secure key computation, encryption, decryption, signature and verification functionalities compliant with the PKCS#1