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Remove one errant use of idempotent
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martinthomson committed Nov 20, 2020
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3 changes: 2 additions & 1 deletion draft-ietf-quic-tls.md
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Expand Up @@ -195,7 +195,8 @@ TLS provides two basic handshake modes of interest to QUIC:
* A 0-RTT handshake, in which the client uses information it has previously
learned about the server to send Application Data immediately. This
Application Data can be replayed by an attacker so 0-RTT is not suitable for
carrying instructions that might initiate any non-idempotent action.
carrying instructions that might initiate any action that could cause
unwanted effects if replayed.

A simplified TLS handshake with 0-RTT application data is shown in {{tls-full}}.

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