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1 vote

Are Universally Unique Lexicographically Sortable Identifiers (ULIDs) safe to use as a session id?

The ULID spec does not cover this explicitly, and what it does say is slightly ambiguous. In the section on monotonicity, it says if the same millisecond is detected, the random component is ...
Mifeet's user avatar
  • 111
6 votes

Key generation from partially random data

The standardised way to obtain such a key is leveraging the Left Over Hash lemma. In short it says that if you use say MD5 to hash 256 bits of entropy, you'll get a NIST approved 128 bit key with a ...
Paul Uszak's user avatar
  • 15.5k

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