Review rev_31e7d28351a9403d9ac6885bf6638a7a

{
  "summary": "Reviewed `aws-lc/crypto/x509/v3_pmaps.c`, which only implements X.509 policy-mapping ASN.1 conversion helpers (`i2v_POLICY_MAPPINGS` and `v2i_POLICY_MAPPINGS`) and related object definitions. No concrete malicious or supply-chain indicators were found: there are no install hooks, network or exfiltration paths, credential access, dynamic code loading, obfuscation, persistence behavior, or hidden subprocess execution in this file.\nReviewed the x86-64 assembly routine in aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_cmul_p384.S, which implements constant-word modular multiplication for P-384 with ABI shims and register save/restore only. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this target file.\nReviewed the XTS ACVP subprocess handler in `aws-lc/util/fipstools/acvp/acvptool/subprocess/xts.go`: it only parses test-vector JSON, decodes hex inputs, derives a tweak from either an explicit tweak or sector number, and passes data to `m.Transact` for AES-XTS encrypt/decrypt handling. I found no concrete indicators of install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess behavior in this file.\n`aws-lc/crypto/x509/x_algor.c` is a small ASN.1/X509 helper implementation that defines `X509_ALGOR` encode/decode, setter/getter, digest-algorithm setup, and comparison logic. I checked this file for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence mechanisms, and found no concrete malicious or supply-chain indicators.\nReviewed `builder/sys_bindgen.rs`, which only configures `bindgen` input allowlists/blocklists, optional prelude/include-SSL flags, a prefix-stripping callback, and a temporary `TARGET` environment guard for binding generation. I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence 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": "aws-lc/crypto/x509/v3_pmaps.c",
      "hash": "blake3:e7ab32fbecfcc3b81e436dde084ee4b84f604852401364f91fc5efc60d4e567e",
      "summary": "Reviewed `aws-lc/crypto/x509/v3_pmaps.c`, which only implements X.509 policy-mapping ASN.1 conversion helpers (`i2v_POLICY_MAPPINGS` and `v2i_POLICY_MAPPINGS`) and related object definitions. No concrete malicious or supply-chain indicators were found: there are no install hooks, network or exfiltration paths, credential access, dynamic code loading, obfuscation, persistence behavior, or hidden subprocess execution in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_cmul_p384.S",
      "hash": "blake3:2e409c28f8523a1f32df18375c632d8a6da7b3702f01b0588ef1b75e85c89abc",
      "summary": "Reviewed the x86-64 assembly routine in aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_cmul_p384.S, which implements constant-word modular multiplication for P-384 with ABI shims and register save/restore only. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/util/fipstools/acvp/acvptool/subprocess/xts.go",
      "hash": "blake3:f4d636883332878ad70f4ddb631b5808ddf517720075eee2f62057737e52a19e",
      "summary": "Reviewed the XTS ACVP subprocess handler in `aws-lc/util/fipstools/acvp/acvptool/subprocess/xts.go`: it only parses test-vector JSON, decodes hex inputs, derives a tweak from either an explicit tweak or sector number, and passes data to `m.Transact` for AES-XTS encrypt/decrypt handling. I found no concrete indicators of install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/x509/x_algor.c",
      "hash": "blake3:ffb58467b4fb6b9b4f54b3ffc1ad06bae5b0a68fe458a7a0dc4efc50913f1012",
      "summary": "`aws-lc/crypto/x509/x_algor.c` is a small ASN.1/X509 helper implementation that defines `X509_ALGOR` encode/decode, setter/getter, digest-algorithm setup, and comparison logic. I checked this file for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence mechanisms, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "builder/sys_bindgen.rs",
      "hash": "blake3:1d532c77f7fc7995ddf26a06aa2279226d7ca34a0fc4e7aa38f706b8a9f52d97",
      "summary": "Reviewed `builder/sys_bindgen.rs`, which only configures `bindgen` input allowlists/blocklists, optional prelude/include-SSL flags, a prefix-stripping callback, and a temporary `TARGET` environment guard for binding generation. I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}