Review rev_6f4516f756044901960bcd050d805e81

{
  "summary": "Reviewed the x86-64 assembly routine for `bignum_double_p256`, which performs constant-time doubling modulo the P-256 field prime. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload execution, and found no concrete malicious or supply-chain indicators in this file.\nReviewed this x86-64 assembly routine for P-256 modular reduction in isolation. It contains only arithmetic normalization logic and ABI/stack directives; I found no concrete indicators of install-time execution, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload behavior.\nReviewed `aws-lc/crypto/evp_extra/sign.c`, which contains straightforward EVP sign/verify wrapper functions around digest and public-key signing APIs. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload execution, and found no concrete malicious or supply-chain indicators in this file.\nReviewed this target C source, which is an auto-generated AVX2 constants table for ML-KEM/AWS-LC and contains only static integer data plus a compile-time stub for the disabled configuration path. I found no concrete indicators of install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this file.\nReviewed this Poly1305 unit test file, which only exercises local test vectors, streaming updates, unaligned buffers, and SIMD stress cases for the `CRYPTO_poly1305_*` API. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence in the target 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/third_party/s2n-bignum/s2n-bignum-imported/x86_att/p256/bignum_double_p256.S",
      "hash": "blake3:87e5ff653b73059415d23c95b8c9b4ba999136eb953c395bbd87c53f14c141cb",
      "summary": "Reviewed the x86-64 assembly routine for `bignum_double_p256`, which performs constant-time doubling modulo the P-256 field prime. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload execution, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/p256/bignum_mod_n256_4.S",
      "hash": "blake3:f8782ae65c3265453411edf74b962b227af7af6a8c04f4743afdfde932a38b47",
      "summary": "Reviewed this x86-64 assembly routine for P-256 modular reduction in isolation. It contains only arithmetic normalization logic and ABI/stack directives; I found no concrete indicators of install-time execution, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/evp_extra/sign.c",
      "hash": "blake3:1e405a2bc6abec666c6be25246d0ab7dbcf67cf43d489728d638c692184882d9",
      "summary": "Reviewed `aws-lc/crypto/evp_extra/sign.c`, which contains straightforward EVP sign/verify wrapper functions around digest and public-key signing APIs. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload execution, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/mlkem/native/x86_64/src/consts.c",
      "hash": "blake3:7da973629dd4294f978b4a8dd6cd025b3855de28689078579a1e7e9dbed263a3",
      "summary": "Reviewed this target C source, which is an auto-generated AVX2 constants table for ML-KEM/AWS-LC and contains only static integer data plus a compile-time stub for the disabled configuration path. I found no concrete indicators of install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/poly1305/poly1305_test.cc",
      "hash": "blake3:ad3559695e49d5ac51e79bb137dc489bda8f531e2ab1555720f78b1553815bf4",
      "summary": "Reviewed this Poly1305 unit test file, which only exercises local test vectors, streaming updates, unaligned buffers, and SIMD stress cases for the `CRYPTO_poly1305_*` API. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence in the target file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}