Review rev_3e81ecc2f2c948cfbda0c0a4c0fa4cd3

{
  "summary": "Reviewed `aws-lc/crypto/fipsmodule/bn/montgomery_inv.c`, which implements constant-time Montgomery inverse and RR setup for big-number modular arithmetic. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, and hidden subprocess execution; none were present in this file.\nReviewed `aws-lc/crypto/lhash/internal.h`, which is a C header defining type-safe lhash wrapper declarations and inline macros around `OPENSSL_lh_*` hash-table APIs. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation/deobfuscation, persistence, and other hidden execution paths, and found no concrete malicious or supply-chain indicators.\nReviewed `aws-lc/include/openssl/crypto.h`, which is a public compatibility header exposing AWS-LC/OpenSSL initialization APIs, version macros, and FIPS-related declarations. I found no concrete malicious or supply-chain indicators in this file: it contains no install hooks, network or exfiltration code, credential access, dynamic code loading, obfuscation, persistence logic, or hidden subprocess execution.\nReviewed the target ARM assembly routine `bignum_montmul_p256_alt`, which implements Montgomery multiplication and conditional subtraction for P-256 using only register arithmetic and fixed loads/stores from the provided operands. I checked for install-time hooks, hidden subprocesses, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators in this file.\nReviewed the Perl assembly-emission helper in `aws-lc/crypto/perlasm/x86masm.pl`; it only rewrites labels, formats MASM directives, and emits text into `@out` for code generation. I found no concrete supply-chain indicators such as install hooks, network or exfiltration code, credential access, dynamic code loading, obfuscation, or persistence behavior in this target 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/fipsmodule/bn/montgomery_inv.c",
      "hash": "blake3:e76c99ca3eeae2990d00983c00064fedb8b059c42e283f71a1cfcff9af209fbe",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/bn/montgomery_inv.c`, which implements constant-time Montgomery inverse and RR setup for big-number modular arithmetic. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, and hidden subprocess execution; none were present in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/lhash/internal.h",
      "hash": "blake3:2c89c5488e50d9ee331c5746255b4e6b9e61e6cfeb9c4ec7b01e693a21620721",
      "summary": "Reviewed `aws-lc/crypto/lhash/internal.h`, which is a C header defining type-safe lhash wrapper declarations and inline macros around `OPENSSL_lh_*` hash-table APIs. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation/deobfuscation, persistence, and other hidden execution paths, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/include/openssl/crypto.h",
      "hash": "blake3:73c66777fbf9852059346b15e3da864138176bf98d5c7ce7a55a12c4d7e7c93b",
      "summary": "Reviewed `aws-lc/include/openssl/crypto.h`, which is a public compatibility header exposing AWS-LC/OpenSSL initialization APIs, version macros, and FIPS-related declarations. I found no concrete malicious or supply-chain indicators in this file: it contains no install hooks, network or exfiltration code, credential access, dynamic code loading, obfuscation, persistence logic, or hidden subprocess execution.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/p256/bignum_montmul_p256_alt.S",
      "hash": "blake3:7819c84dff35a7fb8dc180c4b36faa30cc5b70480437046715682b14494c6606",
      "summary": "Reviewed the target ARM assembly routine `bignum_montmul_p256_alt`, which implements Montgomery multiplication and conditional subtraction for P-256 using only register arithmetic and fixed loads/stores from the provided operands. I checked for install-time hooks, hidden subprocesses, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/perlasm/x86masm.pl",
      "hash": "blake3:45e85e3a0176d8a9c797398f1d9049fc2bea92a15b0a157741bae865ee3b0135",
      "summary": "Reviewed the Perl assembly-emission helper in `aws-lc/crypto/perlasm/x86masm.pl`; it only rewrites labels, formats MASM directives, and emits text into `@out` for code generation. I found no concrete supply-chain indicators such as install hooks, network or exfiltration code, credential access, dynamic code loading, obfuscation, or persistence behavior in this target file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}