Skip to content

Disable HPKE ECDH NIST curves on Android #134688

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
bartonjs merged 1 commit into from
Sep 28, 2026
Merged

Disable HPKE ECDH NIST curves on Android #134688

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 4 additions & 1 deletion .../System.Security.Cryptography/src/System/Security/Cryptography/HpkeKemMetadata.Managed.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -75,7 +75,10 @@ internal bool IsSupported
case HpkeKem.DHKEM_P256_HKDF_SHA256:
case HpkeKem.DHKEM_P384_HKDF_SHA384:
case HpkeKem.DHKEM_P521_HKDF_SHA512:
return !OperatingSystem.IsBrowser() && !OperatingSystem.IsWasi();
// Browser and WASI do not support crypto at all.
// Android does support ECDiffieHellman, but it lacks the ability to import a private scalar d
// without the public Q.
return !OperatingSystem.IsBrowser() && !OperatingSystem.IsWasi() && !OperatingSystem.IsAndroid();
case HpkeKem.DHKEM_X25519_HKDF_SHA256:
return X25519DiffieHellman.IsSupported;
case HpkeKem.MLKEM_512:
Expand Down
Loading