Project Wycheproof -- a test suite designed to test cryptographic libraries
Google has released Project Wycheproof -- a test suite designed to test cryptographic libraries against a series of known attacks. The tool has already found over 40 security bugs in cryptographic libraries, which are (all? mostly?) currently being fixed.
https://github.com/google/wycheproof
https://security.googleblog.com/2016/12/project-wycheproof.html
https://github.com/google/wycheproof/blob/master/doc/bugs.md
https://www.onthewire.io/google-releases-project-wycheproof-crypto-test-suite/
https://tech.slashdot.org/story/16/12/19/2120237/google-releases-tool-to-find-common-crypto-bugs