Review rev_ca28d770f91147ed86492cb9af94f2fe

{
  "summary": "Reviewed the OpenSSL compatibility header `aws-lc/include/openssl/x509v3.h`, which only defines deprecated CRL reason and key-usage constants and includes `<openssl/x509.h>`. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in this target file.\nReviewed the ARM assembly implementation of `bignum_nonzero_6`, which only OR-reduces six 64-bit limbs, compares the result to zero, and returns a boolean. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden control flow, and found no concrete malicious or supply-chain indicators.\nReviewed the x86-64 assembly helper in `word_ctz.S`, which implements a count-trailing-zeros routine with ABI shims and a zero-input fixup. I found no concrete malicious or supply-chain indicators: no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior in this target file.\nReviewed `aws-lc/crypto/asn1/a_dup.c`, which implements ASN.1 object duplication by encoding an input object to a temporary buffer and decoding it back into a new object. I found no concrete malicious or supply-chain indicators in this file: no install-time hooks, network or exfiltration logic, credential/secret access, dynamic loading of remote code, obfuscation, persistence, or hidden subprocess execution.\nReviewed `aws-lc/crypto/fipsmodule/ecdsa/internal.h`, a small C header that only declares internal ECDSA signing and verification helpers for FIPS self-tests and known-answer tests. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence 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/include/openssl/x509v3.h",
      "hash": "blake3:0a98cd57aa47c165bb24ecb432896d456d10232d3b2eccdff5ffe1e604989feb",
      "summary": "Reviewed the OpenSSL compatibility header `aws-lc/include/openssl/x509v3.h`, which only defines deprecated CRL reason and key-usage constants and includes `<openssl/x509.h>`. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/p384/bignum_nonzero_6.S",
      "hash": "blake3:0feb8ffafbb7d08a017c9d789e26d7aa37e2d5f172184d373a86339623c3c7b4",
      "summary": "Reviewed the ARM assembly implementation of `bignum_nonzero_6`, which only OR-reduces six 64-bit limbs, compares the result to zero, and returns a boolean. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden control flow, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/generic/word_ctz.S",
      "hash": "blake3:df89caf4912a23e84c09d2084d94130fe5d440ab2fab8087eb1f6b6e5ed3278d",
      "summary": "Reviewed the x86-64 assembly helper in `word_ctz.S`, which implements a count-trailing-zeros routine with ABI shims and a zero-input fixup. I found no concrete malicious or supply-chain indicators: no install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence behavior in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/asn1/a_dup.c",
      "hash": "blake3:4f3df143f0fccaccbc2712dcd19450df61afa9a459b51a70f43aebe0b118d69b",
      "summary": "Reviewed `aws-lc/crypto/asn1/a_dup.c`, which implements ASN.1 object duplication by encoding an input object to a temporary buffer and decoding it back into a new object. I found no concrete malicious or supply-chain indicators in this file: no install-time hooks, network or exfiltration logic, credential/secret access, dynamic loading of remote code, obfuscation, persistence, or hidden subprocess execution.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ecdsa/internal.h",
      "hash": "blake3:ee1441f21059af8509999bf9a82c8bf153c30333a0214a15f048416ac5c38221",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ecdsa/internal.h`, a small C header that only declares internal ECDSA signing and verification helpers for FIPS self-tests and known-answer tests. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}