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FFDH(E) grouped a required E, so only FFDHE names matched. Align with ECDH[E] and RFC 7919: E is ephemeral and optional. Signed-off-by: Mehrn0ush <mehrnoush.vaseghi@gmail.com>
jvdsn
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Oct 11, 2026
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Seems like this was a typo. I always assumed it was optional.
jkowalleck
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cap: cryptography-registry
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Summary
FFDH(E)[-{namedGroup}]toFFDH[E][-{namedGroup}]so ephemeral E is optional, matchingECDH[E].FFDH,FFDHE, andFFDHE-{namedGroup}are all valid constructed names.Thanks @bhess
Closes #1147
Test plan
cryptography-defs.jsonstill parsesFFDHandFFDHE-ffdhe2048match the new pattern;FFDH(E)is gone