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## Why Some enterprise TLS proxies issue certificate chains signed with `ecdsa_secp521r1_sha512` / `ECDSA_NISTP521_SHA512`. Custom CA configuration such as `SSL_CERT_FILE` can add the right trust root, but it cannot make `rustls`'s `ring` verifier support a certificate signature algorithm it does not advertise. That can still break TLS after the CA bundle is configured, including on Rust websocket paths that call the shared `ensure_rustls_crypto_provider()` helper, such as the Responses websocket connector and remote app-server client: - [`codex-api/src/endpoint/responses_websocket.rs`](https://github.com/openai/codex/blob/eddc5c75ed527a8348bfcaa85692e53189600833/codex-rs/codex-api/src/endpoint/responses_websocket.rs#L441) - [`app-server-client/src/remote.rs`](https://github.com/openai/codex/blob/eddc5c75ed527a8348bfcaa85692e53189600833/codex-rs/app-server-client/src/remote.rs#L718) The `aws-lc-rs` `rustls` provider supports this P-521/SHA-512 certificate signature scheme, so use it as Codex's process-wide `rustls` provider. ## What Changed - Switch the workspace `rustls` feature from `ring` to `aws_lc_rs`. - Update `codex-utils-rustls-provider` to install `rustls::crypto::aws_lc_rs::default_provider()`. - Add an assertion and integration test that the installed provider supports `ECDSA_NISTP521_SHA512`. ## Verification ```shell just fmt just test -p codex-utils-rustls-provider just bazel-lock-update just bazel-lock-check ```
d5a8117e08
·
2026-06-15 11:32:13 -07:00
7,478 Commits
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Run the following on Mac or Linux to install Codex CLI:
curl -fsSL https://chatgpt.com/codex/install.sh | sh
Run the following on Windows to install Codex CLI:
powershell -ExecutionPolicy ByPass -c "irm https://chatgpt.com/codex/install.ps1 | iex"
Codex CLI can also be installed via the following package managers:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.