Review rev_65507b4d6c8444ba9434639268ef98e0

{
  "summary": "Reviewed `aws-lc/crypto/bio/socket_helper.c`, which only implements socket/address helper routines for resolving a host and port, toggling nonblocking mode, reading socket errors, and retry checks. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior.\nReviewed this header, which only declares X509 extension method symbols and defines a static ordered `standard_exts` table plus the `STANDARD_EXTENSION_COUNT` macro. 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.\nReviewed the x86-64 assembly implementation of `bignum_demont_p384`, which performs a fixed Montgomery-domain reduction for P-384 and only reads/writes its input and output registers/memory. 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 this file.\nReviewed the x86-64 assembly implementation of `bignum_demont_p384_alt`, which performs Montgomery reduction for P-384 and only reads from the input buffer, computes with registers, and writes the result back. I found no concrete malicious or supply-chain indicators in this target file: there are no install hooks, network or exfiltration code, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess behavior.\nReviewed `ed25519_test.cc`, which is a unit test for Ed25519 signing, verification, malleability rejection, and keypair derivation from seed. I checked for install-time execution, network or exfiltration calls, credential or secret harvesting, dynamic code loading, obfuscation, persistence tampering, and other hidden payload behavior; none were present.",
  "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/bio/socket_helper.c",
      "hash": "blake3:7a0d945cf09bfb22528f3b9dcedbd836d16aa4505a35ffa76fb2c3c465905592",
      "summary": "Reviewed `aws-lc/crypto/bio/socket_helper.c`, which only implements socket/address helper routines for resolving a host and port, toggling nonblocking mode, reading socket errors, and retry checks. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/x509/ext_dat.h",
      "hash": "blake3:de334e06efa6e89fff4b23a46e39c799aa9f046df1178f074504b03d5c3385d7",
      "summary": "Reviewed this header, which only declares X509 extension method symbols and defines a static ordered `standard_exts` table plus the `STANDARD_EXTENSION_COUNT` macro. 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.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_demont_p384.S",
      "hash": "blake3:7177af5b1374335783bc3e835dccae1aee2e042c066e73f19ccd1633486a3048",
      "summary": "Reviewed the x86-64 assembly implementation of `bignum_demont_p384`, which performs a fixed Montgomery-domain reduction for P-384 and only reads/writes its input and output registers/memory. 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 this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_demont_p384_alt.S",
      "hash": "blake3:593f75350d4fa1b557179421e3f8007282f3194544e53d79360d72f9e8b2807b",
      "summary": "Reviewed the x86-64 assembly implementation of `bignum_demont_p384_alt`, which performs Montgomery reduction for P-384 and only reads from the input buffer, computes with registers, and writes the result back. I found no concrete malicious or supply-chain indicators in this target file: there are no install hooks, network or exfiltration code, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/curve25519/ed25519_test.cc",
      "hash": "blake3:b15e3fd02c5920ea04a04bb0f0306230da0f2e142a898f155f5ce6e7f63dfbc0",
      "summary": "Reviewed `ed25519_test.cc`, which is a unit test for Ed25519 signing, verification, malleability rejection, and keypair derivation from seed. I checked for install-time execution, network or exfiltration calls, credential or secret harvesting, dynamic code loading, obfuscation, persistence tampering, and other hidden payload behavior; none were present.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}