liboqs affected by theoretical design flaw in HQC

liboqs is a C-language cryptographic library that provides implementations of post-quantum cryptography algorithms. liboqs prior to version 0.13.0 supports the HQC algorithm, an algorithm with a theoretical design flaw which leads to large numbers of malformed ciphertexts sharing the same implicit rejection value. Currently, no concrete attack on the algorithm is known. However, prospective users of HQC must take extra care when using the algorithm in protocols involving key derivation. In particular, HQC does not provide the same security guarantees as Kyber or ML-KEM. There is currently no patch for the HQC flaw available in liboqs, so HQC is disabled by default in liboqs starting from version 0.13.0. OQS will update its implementation after the HQC team releases an updated algorithm specification.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

使用已被攻破或存在风险的密码学算法

liboqs 加密问题漏洞

liboqs是Open Quantum Safe开源的一个用于量子安全加密算法的开源 C 库。 liboqs 0.13.0之前版本存在加密问题漏洞，该漏洞源于HQC算法存在设计缺陷，可能导致大量畸形密文共享相同的隐式拒绝值。

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