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path: root/src/crypto/tls/ech.go
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4 dayscrypto/tls: fix ECH SNI encoded lengthNeal Patel
https://datatracker.ietf.org/doc/html/rfc9849#section-6.1.3 Change-Id: Ifccf7b92f69ddb9ae288991763111bd1f00e61de Reviewed-on: https://go-review.googlesource.com/c/go/+/765446 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Roland Shoemaker <roland@golang.org>
2025-11-25crypto/hpke: expose crypto/internal/hpkeFilippo Valsorda
Fixes #75300 Change-Id: I6a83e0d040dba3366819d2afff704f886a6a6964 Reviewed-on: https://go-review.googlesource.com/c/go/+/723560 Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Daniel McCarney <daniel@binaryparadox.net> Auto-Submit: Filippo Valsorda <filippo@golang.org> TryBot-Bypass: Filippo Valsorda <filippo@golang.org> Reviewed-by: Roland Shoemaker <roland@golang.org>
2025-11-21crypto/internal/hpke: separate KEM and PublicKey/PrivateKey interfacesFilippo Valsorda
Updates #75300 Change-Id: I87ed26e8f57180d741408bdbda1696d46a6a6964 Reviewed-on: https://go-review.googlesource.com/c/go/+/719560 Reviewed-by: Mark Freeman <markfreeman@google.com> Reviewed-by: Junyang Shao <shaojunyang@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Daniel McCarney <daniel@binaryparadox.net> Auto-Submit: Filippo Valsorda <filippo@golang.org>
2025-11-21crypto/internal/hpke: modularize API and support more ciphersuitesFilippo Valsorda
Updates #75300 Change-Id: I6a6a6964de449b36bc6f5594e08c3c47a0a2f17f Reviewed-on: https://go-review.googlesource.com/c/go/+/701435 Reviewed-by: Daniel McCarney <daniel@binaryparadox.net> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Auto-Submit: Filippo Valsorda <filippo@golang.org> Reviewed-by: Mark Freeman <markfreeman@google.com> Reviewed-by: Junyang Shao <shaojunyang@google.com>
2025-10-02crypto/tls: rm marshalEncryptedClientHelloConfigList dead codeDaniel McCarney
This package internal function has no call sites. Change-Id: I262058199fd2f387ef3b5e21099421720cc5413e Reviewed-on: https://go-review.googlesource.com/c/go/+/707815 TryBot-Bypass: Daniel McCarney <daniel@binaryparadox.net> Auto-Submit: Roland Shoemaker <roland@golang.org> Auto-Submit: Daniel McCarney <daniel@binaryparadox.net> Reviewed-by: Carlos Amedee <carlos@golang.org> Reviewed-by: Roland Shoemaker <roland@golang.org>
2025-05-21crypto/tls: add GetEncryptedClientHelloKeysRoland Shoemaker
This allows servers to rotate their ECH keys without needing to restart the server. Fixes #71920 Change-Id: I55591ab3303d5fde639038541c50edcf1fafc9aa Reviewed-on: https://go-review.googlesource.com/c/go/+/670655 TryBot-Bypass: Roland Shoemaker <roland@golang.org> Reviewed-by: David Chase <drchase@google.com> Auto-Submit: Roland Shoemaker <roland@golang.org> Reviewed-by: Daniel McCarney <daniel@binaryparadox.net>
2025-04-28crypto/internal/hpke: rename Receipient to RecipientJohn Bampton
receipient -> recipient Change-Id: I9ed5937acf0f3808283e35221f8b4f41408eee7c GitHub-Last-Rev: 0ed5ff7a46808d5311af3620b6577734a1e557f4 GitHub-Pull-Request: golang/go#73131 Reviewed-on: https://go-review.googlesource.com/c/go/+/662175 Reviewed-by: Carlos Amedee <carlos@golang.org> Auto-Submit: Jorropo <jorropo.pgm@gmail.com> Auto-Submit: Filippo Valsorda <filippo@golang.org> Reviewed-by: Jorropo <jorropo.pgm@gmail.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Filippo Valsorda <filippo@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> Reviewed-by: Daniel McCarney <daniel@binaryparadox.net>
2025-03-17crypto/tls: fix ECH compatibility古大羊
Previously, the code only checked supportedVersions[0] for TLS 1.3 However, Chromium-based browsers may list TLS 1.3 at different positions, causing ECH failures. This fix: Iterates through supportedVersions to accept connections as long as TLS 1.3 is present. Improves ECH compatibility, ensuring Chrome, Edge, and other browsers work properly. Fixes #71642 Change-Id: I32f4219fb6654d5cc22c7f33497c6142c0acb4f2 Reviewed-on: https://go-review.googlesource.com/c/go/+/648015 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Roland Shoemaker <roland@golang.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Daniel McCarney <daniel@binaryparadox.net>
2025-02-19crypto/tls: improve ech parsing errorsRoland Shoemaker
Make the errors we return when parsing an ECHConfig slightly more verbose. Fixes #71706 Change-Id: Id138fd9defec71ce492a490a71af4981cb9ede51 Reviewed-on: https://go-review.googlesource.com/c/go/+/650720 Auto-Submit: Roland Shoemaker <roland@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Daniel McCarney <daniel@binaryparadox.net> Reviewed-by: Michael Knyszek <mknyszek@google.com>
2025-01-07crypto/tls: send illegal_parameter on invalid ECHClientHello.typethekuwayama
The spec indicates that if a client sends an invalid ECHClientHello.type in ClientHelloOuter, the server will abort the handshake with a decode_error alert. Define errInvalidECHExt for invalid ECHClientHello.type. If parseECHExt returns an errInvalidECHExt error, Conn now sends an illegal_parameter alert. Fixes #71061. Change-Id: I240241fe8bbe3e77d6ad1af989794647bfa2ff87 GitHub-Last-Rev: 3d6c233ccd401453bfb1a4fc97fa5deeb5b2fbc8 GitHub-Pull-Request: golang/go#71062 Reviewed-on: https://go-review.googlesource.com/c/go/+/639235 Reviewed-by: Dmitri Shuralyov <dmitshur@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Roland Shoemaker <roland@golang.org>
2024-11-21crypto/tls: add server-side ECHRoland Shoemaker
Adds support for server-side ECH. We make a couple of implementation decisions that are not completely in-line with the spec. In particular, we don't enforce that the SNI matches the ECHConfig public_name, and we implement a hybrid shared/backend mode (rather than shared or split mode, as described in Section 7). Both of these match the behavior of BoringSSL. The hybrid server mode will either act as a shared mode server, where-in the server accepts "outer" client hellos and unwraps them before processing the "inner" hello, or accepts bare "inner" hellos initially. This lets the server operate either transparently as a shared mode server, or a backend server, in Section 7 terminology. This seems like the best implementation choice for a TLS library. Fixes #68500 Change-Id: Ife69db7c1886610742e95e76b0ca92587e6d7ed4 Reviewed-on: https://go-review.googlesource.com/c/go/+/623576 Reviewed-by: Filippo Valsorda <filippo@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Daniel McCarney <daniel@binaryparadox.net> Auto-Submit: Roland Shoemaker <roland@golang.org> Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
2024-05-23crypto/tls: add ech client supportRoland Shoemaker
This CL adds a (very opinionated) client-side ECH implementation. In particular, if a user configures a ECHConfigList, by setting the Config.EncryptedClientHelloConfigList, but we determine that none of the configs are appropriate, we will not fallback to plaintext SNI, and will instead return an error. It is then up to the user to decide if they wish to fallback to plaintext themselves (by removing the config list). Additionally if Config.EncryptedClientHelloConfigList is provided, we will not offer TLS support lower than 1.3, since negotiating any other version, while offering ECH, is a hard error anyway. Similarly, if a user wishes to fallback to plaintext SNI by using 1.2, they may do so by removing the config list. With regard to PSK GREASE, we match the boringssl behavior, which does not include PSK identities/binders in the outer hello when doing ECH. If the server rejects ECH, we will return a ECHRejectionError error, which, if provided by the server, will contain a ECHConfigList in the RetryConfigList field containing configs that should be used if the user wishes to retry. It is up to the user to replace their existing Config.EncryptedClientHelloConfigList with the retry config list. Fixes #63369 Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest Change-Id: I9bc373c044064221a647a388ac61624efd6bbdbf Reviewed-on: https://go-review.googlesource.com/c/go/+/578575 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Filippo Valsorda <filippo@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org> Auto-Submit: Roland Shoemaker <roland@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
generated by cgit v1.3 (git 2.53.0) at 2026-04-15 13:00:49 +0000