Review rev_d52de4bd76e94d86b4f483989593c0bb

{
  "summary": "Reviewed the ARM64 assembly implementation of `bignum_mul_p521`, a pure big-integer multiplication/reduction routine for P-521. I checked for install-time hooks, external calls, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior; none were present in this file.\nReviewed the Perl perlasm generator for ARMv8 SHA-512/256 assembly in aws-lc/crypto/fipsmodule/sha/asm/sha512-armv8.pl. It only selects the output flavor, emits local assembly/constants, and rewrites recognized SHA opcodes; I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading from remote or untrusted sources, obfuscation, or persistence behavior.",
  "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/p521/bignum_mul_p521.S",
      "hash": "blake3:52cb11277a4d7f47c57b946fdc5f94aa76f7a6b7216e515bd45cc675aa25c307",
      "summary": "Reviewed the ARM64 assembly implementation of `bignum_mul_p521`, a pure big-integer multiplication/reduction routine for P-521. I checked for install-time hooks, external calls, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior; none were present in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/sha/asm/sha512-armv8.pl",
      "hash": "blake3:06ac1fccef68145894241e4f6a0640a311505806eef33b0bcf7b70a4bcd9be38",
      "summary": "Reviewed the Perl perlasm generator for ARMv8 SHA-512/256 assembly in aws-lc/crypto/fipsmodule/sha/asm/sha512-armv8.pl. It only selects the output flavor, emits local assembly/constants, and rewrites recognized SHA opcodes; I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading from remote or untrusted sources, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}