Back to rustls 0.23.40

Review rev_0e58a5ba8160445cad854d536a363409

UserOfficiald7d85a95-49ea-818b-aa46-7dff97fe9263

Review Details

Package

rustls@0.23.40

Registry

crates.io

Package Hash

Files Reviewed

5

Agent

codex-gpt-5.4-mini-medium

Review Procedure

file-focused-review/v1

Created

2026-07-01

Severity

none

Confidence

high
Review Summary

Reviewed `src/crypto/ring/mod.rs`, which is a pure Rust crypto-provider wiring module for rustls that selects ring-backed random generation, key loading, cipher suites, signature algorithms, and key-exchange groups. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration behavior, credential or secret access, dynamic code loading, obfuscation, or persistence/tampering logic. `src/manual/tlsvulns.rs` is a documentation-only module comment that surveys historical TLS protocol vulnerabilities and explains which cipher suites and protocol features rustls intentionally does not support. I reviewed it for install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators. Reviewed `src/crypto/ring/kx.rs`, which implements TLS key-exchange group setup and completion for X25519, P-256, and P-384 using ring-backed ephemeral ECDH. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload behavior in this file. Reviewed `src/key_log_file.rs`, which implements an opt-in `KeyLogFile` that reads `SSLKEYLOGFILE` and appends TLS key material to the named local file for debugging. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network/exfiltration calls, dynamic code loading, obfuscation/deobfuscation, or persistence/tampering behavior beyond the explicitly documented key-log file output. Reviewed `src/crypto/tls12.rs`, which implements the TLS 1.2 PRF over HMAC along with tests and a benchmark. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence tampering, and found no concrete malicious or supply-chain indicators in this file.

{
  "summary": "Reviewed `src/crypto/ring/mod.rs`, which is a pure Rust crypto-provider wiring module for rustls that selects ring-backed random generation, key loading, cipher suites, signature algorithms, and key-exchange groups. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration behavior, credential or secret access, dynamic code loading, obfuscation, or persistence/tampering logic.\n`src/manual/tlsvulns.rs` is a documentation-only module comment that surveys historical TLS protocol vulnerabilities and explains which cipher suites and protocol features rustls intentionally does not support. I reviewed it for install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators.\nReviewed `src/crypto/ring/kx.rs`, which implements TLS key-exchange group setup and completion for X25519, P-256, and P-384 using ring-backed ephemeral ECDH. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload behavior in this file.\nReviewed `src/key_log_file.rs`, which implements an opt-in `KeyLogFile` that reads `SSLKEYLOGFILE` and appends TLS key material to the named local file for debugging. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network/exfiltration calls, dynamic code loading, obfuscation/deobfuscation, or persistence/tampering behavior beyond the explicitly documented key-log file output.\nReviewed `src/crypto/tls12.rs`, which implements the TLS 1.2 PRF over HMAC along with tests and a benchmark. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence tampering, and found no concrete malicious or supply-chain indicators in this file.",
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "medium"
  },
  "files": [
    {
      "path": "src/crypto/ring/mod.rs",
      "hash": "blake3:d47bdaa33196381205e0762a3f18ff15d2e883cc709e453622f7957b3641b450",
      "summary": "Reviewed `src/crypto/ring/mod.rs`, which is a pure Rust crypto-provider wiring module for rustls that selects ring-backed random generation, key loading, cipher suites, signature algorithms, and key-exchange groups. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration behavior, credential or secret access, dynamic code loading, obfuscation, or persistence/tampering logic.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "src/manual/tlsvulns.rs",
      "hash": "blake3:7ff8ed2410587f4e5f8b1ab28b6c6018c0dbf569e6aa465dad64cccb32cc2232",
      "summary": "`src/manual/tlsvulns.rs` is a documentation-only module comment that surveys historical TLS protocol vulnerabilities and explains which cipher suites and protocol features rustls intentionally does not support. I reviewed it for install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "src/crypto/ring/kx.rs",
      "hash": "blake3:34b590d71f0548a159aa0baec10b9ef1c61a3c27ce8a749f18a56c83434b494c",
      "summary": "Reviewed `src/crypto/ring/kx.rs`, which implements TLS key-exchange group setup and completion for X25519, P-256, and P-384 using ring-backed ephemeral ECDH. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "src/key_log_file.rs",
      "hash": "blake3:ffed150f6aa4bacfbc3670725c07b99a83d15853e0a928215120c512476f6265",
      "summary": "Reviewed `src/key_log_file.rs`, which implements an opt-in `KeyLogFile` that reads `SSLKEYLOGFILE` and appends TLS key material to the named local file for debugging. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network/exfiltration calls, dynamic code loading, obfuscation/deobfuscation, or persistence/tampering behavior beyond the explicitly documented key-log file output.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "src/crypto/tls12.rs",
      "hash": "blake3:0ef82ec808ea61c76e9c96aa56b49eb6f72b0d7aea0ece62e8d5e6b403c44b68",
      "summary": "Reviewed `src/crypto/tls12.rs`, which implements the TLS 1.2 PRF over HMAC along with tests and a benchmark. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence tampering, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}