In short: - https://csrc.nist.gov https://csrc.nist.gov doesn’t serve its content anymore due to the US government shutdown. - https://csrc.nist.rip https://c

In short: - https://csrc.nist.gov https://csrc.nist.gov doesn’t serve its content anymore due to the US government shutdown. - https://csrc.nist.rip https://csrc.nist.rip is a mirror pulled from archive.org and https://csrc.nist.rip/library https://csrc.nist.rip/library its searchable index. Intended use case is to restore access to reference documents by replacing .gov by .rip. I added the index for batch access and easy retrieval: for example, searching crystals gives the candidate implementations used during the Post-Quantum Cryptography Standardization process.