Review rev_3a21b68d8bc34b3e8875f33d2a5d3d6a

{
  "summary": "Reviewed `aws-lc/crypto/obj/obj.c`, which implements ASN.1 object/NID lookup, text/OID parsing, and runtime registration of objects in local in-memory hashes. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation/packing, and persistence, and found no concrete malicious or supply-chain indicators in this file.\nReviewed the ARM assembly implementation of `edwards25519_decode_alt`, which performs constant-time decoding and field arithmetic for compressed edwards25519 points. I checked for install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, and hidden subprocess execution, 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/crypto/obj/obj.c",
      "hash": "blake3:ef30daab6d235a6580ad147e352cbcf87ddc038085b08c3321b25cfe6f079911",
      "summary": "Reviewed `aws-lc/crypto/obj/obj.c`, which implements ASN.1 object/NID lookup, text/OID parsing, and runtime registration of objects in local in-memory hashes. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation/packing, and persistence, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/arm/curve25519/edwards25519_decode_alt.S",
      "hash": "blake3:057e9be54c61c23a1698be555b5f35a19b7610003f0b14b51495394275acf6f1",
      "summary": "Reviewed the ARM assembly implementation of `edwards25519_decode_alt`, which performs constant-time decoding and field arithmetic for compressed edwards25519 points. I checked for install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}