SM2 | BestHub

AntTech

Dec 6, 2024 · Information Security

Ant Financial's MorseCrypto Wins First Place in the 2024 Financial Cipher Cup Second Stage with High‑Performance SM2/SM3/SM4 Implementations

Ant Financial's MorseCrypto team secured first place in the 2024 Financial Cipher Cup second‑stage competition by delivering highly optimized SM2, SM3, and SM4 implementations on X86 and ARM platforms that achieve up to 4.3‑times faster verification while meeting strict security and memory constraints.

SM2SM3SM4

0 likes · 4 min read

Test Development Learning Exchange

Dec 25, 2023 · Information Security

Using pycryptodome/pycryptodomex for SM2 Signature and Verification in Python and Interoperability with Java Bouncy Castle

This article explains how to install pycryptodome (or pycryptodomex) to perform SM2 signing and verification in Python, provides complete code examples, and offers guidance for ensuring compatibility with Java's Bouncy Castle SM2 implementation.

JavaPythonSM2

0 likes · 8 min read

Using pycryptodome/pycryptodomex for SM2 Signature and Verification in Python and Interoperability with Java Bouncy Castle

Bilibili Tech

Aug 23, 2022 · Information Security

Constant-Time Implementation and Optimization of SM2 Finite Field Inversion

The article analyzes constant‑time computation of the multiplicative inverse in SM2’s prime field, compares the variable‑time Extended Euclidean Algorithm with a constant‑time Fermat‑based square‑and‑multiply exponentiation, optimizes the fixed exponent using add‑chain generation, and shows this reduces multiplications from ~187 to ~41, making inversion the dominant cost in secure SM2 signing.

Fermat's little theoremGoSM2

0 likes · 12 min read

Constant-Time Implementation and Optimization of SM2 Finite Field Inversion