When comparing CloudFlare Red October vs StackExchange Blackbox, the Slant community recommends CloudFlare Red October for most people. In the question“What are the best shared secret managers?” CloudFlare Red October is ranked 4th while StackExchange Blackbox is ranked 7th. The most important reason people chose CloudFlare Red October is:
Red October is fully open source, from the encryption library to the UI modules. Everyone can inspect the code hosted on GitHub or fork it and implement it to suit their needs if they have to.
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Pros
Pro Fully open source
Red October is fully open source, from the encryption library to the UI modules. Everyone can inspect the code hosted on GitHub or fork it and implement it to suit their needs if they have to.
Pro Uses the "two-man rule" for extra security
Red October was built to add an extra layer of security inside organizations. The "two-man rule" that Red October employs means that data can only be decrypted if two or more users provide the necessary keys.
Pro Easily share secrets with other team members
Since the secrets file is stored in the remote VCS server, anyone that has access to it (team members) also have access to the secrets file.
Pro Free and open source
StackExchange Blackbox is free and open source. It's released under the MIT license and its source code is freely available on GitHub.
Pro Uses a VCS repo to store the secrets
SE Blackbox works with Git, Mercurial, Subversion and Perforce to store encrypted secrets file in a repository. Files are automatically encrypted and decrypted using GNU Privacy Guard.
Cons
Con Uses its own crypto library
Red October uses its own crypto implementation in to encrypt secrets. While it's not necessarily a security risk, it would be safer to use a crypto library that has proven it's worth and that has been used for a long time in a lot of projects.