Review rev_3a363324a30248c98c841ec6dbec93e5

{
  "summary": "Reviewed the ARM assembly implementation of `bignum_emontredc_8n`, which is a pure extended Montgomery reduction routine with register saves/restores, arithmetic loops, and final return handling. I found no concrete malicious or supply-chain indicators: no install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation/deobfuscation, persistence, or hidden subprocess execution.\nReviewed this C header of AWS-LC s2n-bignum declarations and runtime selector wrappers. It contains only function prototypes and small inline architecture-dispatch helpers; 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 the target file.\nReviewed `aws-lc/crypto/fipsmodule/evp/internal.h`, which is a C header defining EVP/FIPS internal structs, constants, and function prototypes for key and digest operations. I checked it for install-time hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, 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": "aws-lc/third_party/s2n-bignum/arm/fastmul/bignum_emontredc_8n.S",
      "hash": "blake3:9e8b83dd0e1fb506a6247b2c83ba2eccbb0a08881642cea4cb44a17c48155bf9",
      "summary": "Reviewed the ARM assembly implementation of `bignum_emontredc_8n`, which is a pure extended Montgomery reduction routine with register saves/restores, arithmetic loops, and final return handling. I found no concrete malicious or supply-chain indicators: no install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation/deobfuscation, persistence, or hidden subprocess execution.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/include/s2n-bignum_aws-lc.h",
      "hash": "blake3:0b2d5191afd455a7ec5616214164f219689b05003ebc1c10fd8d17af2d360836",
      "summary": "Reviewed this C header of AWS-LC s2n-bignum declarations and runtime selector wrappers. It contains only function prototypes and small inline architecture-dispatch helpers; 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 the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/evp/internal.h",
      "hash": "blake3:489ed9e91d228d88cadbec99ea2c3a09fba2ef262bf384fd2c1a1a7396babe09",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/evp/internal.h`, which is a C header defining EVP/FIPS internal structs, constants, and function prototypes for key and digest operations. I checked it for install-time hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}