Review rev_9fad9adc15074926ae125607f6ec0e41

{
  "summary": "Reviewed `aws-lc/crypto/ocsp/ocsp_lib.c`, which implements OCSP certificate-id construction, comparison, and URL parsing using local OpenSSL/AWS-LC primitives. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence in this target file.\nReviewed this x86-64 assembly implementation of `bignum_amontsqr`, which performs Montgomery-style big-number squaring and final conditional subtraction. I found no concrete malicious or supply-chain indicators in the target file: no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution.\nReviewed this x86-64 assembly implementation of ML-KEM polynomial coefficient reduction in place. It contains straight-line vector arithmetic and ABI save/restore code only; I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain abuse in the target file.\nReviewed the x86-64 assembly implementation of secp256k1 Montgomery multiplication in this file. It is a deterministic big-number arithmetic routine, and I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, or other supply-chain compromise patterns.\nReviewed this target x86-64 assembly implementation of `bignum_montmul_p256k1_alt`, which is a self-contained Montgomery multiplication routine for secp256k1 arithmetic. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, and other hidden control-flow or payload execution indicators, and found none 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/ocsp/ocsp_lib.c",
      "hash": "blake3:7381aa0f51a1ff5212d9a9040371c0c678d4ddaa051c48bd99ce2b54a2a9c0b1",
      "summary": "Reviewed `aws-lc/crypto/ocsp/ocsp_lib.c`, which implements OCSP certificate-id construction, comparison, and URL parsing using local OpenSSL/AWS-LC primitives. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/generic/bignum_amontsqr.S",
      "hash": "blake3:633ffafaa3fadfe9f7316ad322dce13ee0f6e9e69d55afa69e55a5e7fa457bf2",
      "summary": "Reviewed this x86-64 assembly implementation of `bignum_amontsqr`, which performs Montgomery-style big-number squaring and final conditional subtraction. I found no concrete malicious or supply-chain indicators in the target file: no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/mlkem/mlkem_reduce.S",
      "hash": "blake3:864478768804fbab10788a08aca4b78faf5529e8bfd5a43888a6c07405987b84",
      "summary": "Reviewed this x86-64 assembly implementation of ML-KEM polynomial coefficient reduction in place. It contains straight-line vector arithmetic and ABI save/restore code only; I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain abuse in the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/secp256k1/bignum_montmul_p256k1.S",
      "hash": "blake3:102487cd017ed181154c0ee4077d6f0ffa557db2fb4bc5343b35bd6d2e5507cf",
      "summary": "Reviewed the x86-64 assembly implementation of secp256k1 Montgomery multiplication in this file. It is a deterministic big-number arithmetic routine, and I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, or other supply-chain compromise patterns.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/secp256k1/bignum_montmul_p256k1_alt.S",
      "hash": "blake3:9814170f70ba26dd4dc02c2e6560a001a6cf35c83919d1f8b0af923b1b7bd281",
      "summary": "Reviewed this target x86-64 assembly implementation of `bignum_montmul_p256k1_alt`, which is a self-contained Montgomery multiplication routine for secp256k1 arithmetic. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, and other hidden control-flow or payload execution indicators, and found none in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}