crypto/x509: reject empty GeneralSubtrees sequences RFC 5280 defines GeneralSubtrees as a sequence containing at least one GeneralSubtree. We currently reject a NameConstraints extension only when both permittedSubtrees and excludedSubtrees are empty, accepting an empty sequence when the other field contains a constraint. Reject either field when it is present with an empty sequence. The spec language is clear, and BoringSSL's pki verifier already does this so I don't think there is a significant interop. risk. This removes the x509-limbo allowances and adds explicit parser coverage for both cases. Also adjusts two existing test certificates so their intended conditions are not masked by an empty excludedSubtrees field. Change-Id: Iea0640d4180dfa8acbf233b82a801ef79283cc30 Reviewed-on: https://go-review.googlesource.com/c/go/+/827347 LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Roland Shoemaker <roland@golang.org>
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
Gopher image by Renee French, licensed under Creative Commons 4.0 Attribution license.
Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.
Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
Official binary distributions are available at https://go.dev/dl/.
After downloading a binary release, visit https://go.dev/doc/install for installation instructions.
If a binary distribution is not available for your combination of operating system and architecture, visit https://go.dev/doc/install/source for source installation instructions.
Go is the work of thousands of contributors. We appreciate your help!
To contribute, please read the contribution guidelines at https://go.dev/doc/contribute.
Note that the Go project uses the issue tracker for bug reports and proposals only. See https://go.dev/wiki/Questions for a list of places to ask questions about the Go language.