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Use 'encryption' less often #1708
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@@ -995,7 +995,7 @@ response to connection migration ({{migration}}). NEW_CONNECTION_ID frames | |
## Packet Numbers {#packet-numbers} | ||
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The packet number is an integer in the range 0 to 2^62-1. The value is used in | ||
determining the cryptographic nonce for packet encryption. Each endpoint | ||
determining the cryptographic nonce for packet protection. Each endpoint | ||
maintains a separate packet number for sending and receiving. | ||
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Packet numbers are divided into 3 spaces in QUIC: | ||
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@@ -1005,18 +1005,17 @@ Packet numbers are divided into 3 spaces in QUIC: | |
- Application data space: All 0-RTT and 1-RTT encrypted packets | ||
{{packet-protected}} are in this space. | ||
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As described in {{QUIC-TLS}}, each packet type uses different encryption keys. | ||
As described in {{QUIC-TLS}}, each packet type uses different protection keys. | ||
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Conceptually, a packet number space is the encryption context in which | ||
a packet can be processed and ACKed. Initial packets can only be sent | ||
with Initial encryption keys and ACKed in packets which are also | ||
Initial packets. Similarly, Handshake packets can only be sent and | ||
acknowledged in Handshake packets. | ||
Conceptually, a packet number space is the context in which a packet can be | ||
processed and ACKed. Initial packets can only be sent with Initial encryption | ||
keys and ACKed in packets which are also Initial packets. Similarly, Handshake | ||
packets can only be sent and acknowledged in Handshake packets. | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. "Handshake packets can only be sent in Handshake packets" is either tautological or incorrect, and I'm uncertain which. Either way, I don't think this says what you mean to say. |
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This enforces cryptographic separation between the data sent in the | ||
different packet sequence number spaces. Each packet number space | ||
starts at packet number 0. Subsequent packets sent in the | ||
same packet number space MUST increase the packet number by at least one. | ||
This enforces cryptographic separation between the data sent in the different | ||
packet sequence number spaces. Each packet number space starts at packet number | ||
0. Subsequent packets sent in the same packet number space MUST increase the | ||
packet number by at least one. | ||
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0-RTT and 1-RTT data exist in the same packet number space to make loss recovery | ||
algorithms easier to implement between the two packet types. | ||
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Should this also be protection?