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Thu 星期四
10.16
2025
Poseidon2b: A Binary Field Version of Poseidon2 https://eprint.iacr.org/2025/1893
Grassi et al. in paper proposed Poseidon2b, a hash function designed for binary extension fields, inheriting the circuit-friendly characteristics of Poseidon2, and compatible with Binius et al. proof systems, analyzing algebraic cryptanalysis and subspace trajectory attacks. Grassi等人在论文中提出了Poseidon2b，这是一种专为二进制扩展字段设计的哈希函数，旨在继承Poseidon2的电路友好特性，并与Binius等证明系统兼容，同时分析了代数密码分析和子空间轨迹等攻击向量。
Notes
- Poseidon2b is designed for binary extension fields, inheriting the circuit-friendly characteristics
- Compatible with Binius et al. proof systems, optimizing proof and verification time
- Re-evaluating Poseidon and Poseidon2 attacks in binary extension fields
- Focusing on algebraic cryptanalysis and subspace trajectory attacks
- Benchmarking shows advantages in proof size, time, and verification
- Security analysis highlights the unique attack risks of binary extension fields