Crypto Lifetimes

When each cipher, hash, key exchange and protocol was born, cracked, broken and retired, from 1976 to today.

no known attack weakened on paper broken in practice attack after retirement retired broken, never a standard

Order:

Tap any row for its dates and the source of each.

Born: first published or standardised.
Weakened: first published attack better than brute force, even if far from practical.
Broken: an attack shown to work: a collision found, a key or plaintext recovered.
Retired: the first ban, withdrawal or deprecation by a standards body (IETF, NIST, IEEE).

Every date quotes its source (Wikipedia or the RFC itself); tap a row to read the quote. A build check refuses any date whose quote is missing from its source or does not state that year.

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