Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 183d2f8db43a86ba4b3230b527582768a7542bf8
https://github.com/WebKit/WebKit/commit/183d2f8db43a86ba4b3230b527582768a7542bf8
Author: Claudio Saavedra <[email protected]>
Date: 2026-10-12 (Mon, 12 Oct 2026)
Changed paths:
M LayoutTests/platform/glib/TestExpectations
A
LayoutTests/platform/glib/imported/w3c/web-platform-tests/WebCryptoAPI/sign_verify/eddsa_small_order_points.https.any-expected.txt
A
LayoutTests/platform/glib/imported/w3c/web-platform-tests/WebCryptoAPI/sign_verify/eddsa_small_order_points.https.any.worker-expected.txt
M Source/WebCore/crypto/gcrypt/CryptoAlgorithmEd25519GCrypt.cpp
Log Message:
-----------
[GCrypt] Ed25519 verify() crashes with a small-order public key
https://bugs.webkit.org/show_bug.cgi?id=280672
Reviewed by Javier Fernandez.
gcry_pk_verify() aborts the process when the Ed25519 public key is a
point of order 1, 2 or 4, such as the identity. Reject small-order public
keys and signature R values before calling it, as the WebCrypto spec
requires anyway, so verification returns false instead.
Tests 3 and 6 of eddsa_small_order_points, which use mixed-order points,
still fail: libgcrypt gives the opposite result for them.
* LayoutTests/platform/glib/TestExpectations:
*
LayoutTests/platform/glib/imported/w3c/web-platform-tests/WebCryptoAPI/sign_verify/eddsa_small_order_points.https.any-expected.txt:
Added.
*
LayoutTests/platform/glib/imported/w3c/web-platform-tests/WebCryptoAPI/sign_verify/eddsa_small_order_points.https.any.worker-expected.txt:
Added.
* Source/WebCore/crypto/gcrypt/CryptoAlgorithmEd25519GCrypt.cpp:
(WebCore::isSmallOrderPoint):
(WebCore::verifyEd25519):
Canonical link: https://commits.webkit.org/323450@main
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