wycheproof

Wycheproof is an extensive collection of test vectors designed to verify the correctness of cryptographic implementations and test against known attacks. Originally developed by Google, it is now a community-managed project where contributors can add test vectors for specific cryptographic constructions. Cryptographic implementations are notoriously difficult to get right. Even small bugs can: Wycheproof has found vulnerabilities in major libraries including OpenJDK's SHA1withDSA, Bouncy Castle's ECDHC, and the elliptic npm package. Apply Wycheproof when: Consider alternatives when: The Wycheproof repository is organized as follows: The essential folders are testvectors and testvectors_v1 . While both contain similar files, testvectors_v1 includes more detailed information and is recommended for new integrations. Wycheproof provides test vectors for a wide range of cryptographic algorithms: Each JSON test file tests a specific cryptographic construction. All test files share common attributes: Test groups group sets of tests based on shared attributes such as: This classification allows extracting tests that meet specific criteria relevant to the construction being tested.