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feat: add GREASEEncryptedClientHelloExtension #266

Merged
merged 12 commits into from
Dec 14, 2023
Merged

feat: add GREASEEncryptedClientHelloExtension #266

merged 12 commits into from
Dec 14, 2023

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gaukas
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@gaukas gaukas commented Dec 12, 2023

  • Finalize EncryptedClientHelloExtension interface
  • Add GREASEEncryptedClientHelloExtension extension
    • Correctly calculate the length of EncodedClientHelloInner
    • Allow specifying the length of payload
    • Randomize cipher suite, config id, enc, and payload
  • Handle EncryptedExtension encrypted_client_hello

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@gaukas gaukas linked an issue Dec 12, 2023 that may be closed by this pull request
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Add (*Config).ECHConfigs for future full ECH extension.
Add an incomplete example of using GREASE ECH extension (Chrome 120 parrot).
fix a problem in old example where httpGetOverConn was called with uTlsConn.HandshakeState.ServerHello.AlpnProtocol, which will not be populated in case TLS 1.3 is used.
@gaukas gaukas marked this pull request as ready for review December 14, 2023 00:10
@gaukas gaukas requested a review from ewust December 14, 2023 00:10
@gaukas gaukas changed the title new: add GREASEEncryptedClientHelloExtension feat: add GREASEEncryptedClientHelloExtension Dec 14, 2023
@gaukas gaukas self-assigned this Dec 14, 2023
@gaukas gaukas added the enhancement Feature with low severity but good value label Dec 14, 2023
@gaukas gaukas merged commit b4de442 into master Dec 14, 2023
@gaukas gaukas deleted the grease-ech branch December 14, 2023 20:42
@gaukas gaukas removed the request for review from ewust December 16, 2023 08:31
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feat: GREASE ECH Extension
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