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comment Perfect Forward Secrecy with Pre-shared Key
@fgrieu: Can you explain how using ephemeral key pairs (the oft cited alternative solution) solves your last point better than using a hash-chain? (I.e., what advantages does an ephemeral key have over a hash-chain?)
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accepted Are poly1305 authenticators distinguishable from random data?
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revised Cryptographic Protocol using NaCl
fix link; fix casing of NaCl
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