Review rev_156cb9135e04475f878ff4b0f5c1c37e

{
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "high"
  },
  "files": [
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/tutorial/rel_equivtac2.S",
      "hash": "blake3:248c23453db8577a37f6b5b7e2f903063d668d01bbd4324b6433d2a1f23e5050",
      "summary": "Reviewed this ARM assembly snippet, which simply loads two words from `[x0]`, multiplies them, adds one operand back in, and stores the result to `[x1]`. I found no concrete indicators of install-time execution, network or credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/tutorial/rel_loop.S",
      "hash": "blake3:a80cdd29ddf0679fc146d91d2020d0bc7c66b87f7a94d5bce79a795aa1960b00",
      "summary": "Reviewed `aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/tutorial/rel_loop.S`, which is a small ARM assembly loop that increments registers and branches back until a compare succeeds. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/tutorial/rel_loop2.S",
      "hash": "blake3:b82f02fa65c07599f84fa83e2fd48300d60ece5613967ff7b5e44be4b2bc61e4",
      "summary": "Reviewed this tiny ARM assembly loop, which just increments x2 twice and x0 once before branching back until x0 matches x1. I checked for install-time hooks, network or credential access, dynamic code loading, obfuscation, persistence tampering, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/tutorial/rel_reordertac.S",
      "hash": "blake3:d372da6ce9526c9d0bdcfe0655d607aa3f2b8489fc336770b1aef7383ee1546b",
      "summary": "Reviewed a short ARM64 assembly snippet that loads two 64-bit values from the source pointer in `x0`, adds fixed immediates, and stores the results to the destination pointer in `x1`. I found no concrete indicators of install-time execution, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain abuse in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/tutorial/rel_reordertac2.S",
      "hash": "blake3:50523f3037205c08d5af8388282d9d6d7364fc6462256246df2ecbfa471a32c0",
      "summary": "Reviewed this small ARM64 assembly routine, which only loads two 64-bit values from `x0`, increments them by 1 and 2, and stores the results to `x1`. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in the target file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}