Review rev_22f80684adf242b284a1d3d3364b081e

{
  "summary": "Reviewed the x86-64 assembly routine that performs SM2 bignum de-Montgomery reduction and writes the normalized 256-bit result to the output buffer. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators in this target file.\nReviewed `aws-lc/crypto/crypto_test.cc`, which is a unit test file covering version string consistency, allocation helpers, hex parsing, FIPS-related assertions, and deprecated API invocation. I found no concrete signs of install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this file.\nReviewed `aws-lc/crypto/fipsmodule/ml_dsa/fips202_glue.h`, which is a thin inline wrapper around AWS-LC SHAKE/SHA3 primitives for ML-DSA. I found no concrete malicious or supply-chain indicators in this target file: there are no install hooks, network/exfiltration logic, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution.\nReviewed the AArch64 ML-KEM native backend metadata header, which defines compile-time feature macros and thin inline wrappers around local assembly routines. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise in this file.\nReviewed `aws-lc/crypto/fipsmodule/modes/xts.c`, which implements the XTS block-mode encrypt/decrypt routine using in-process AES block callbacks and byte-level tweak arithmetic. I found no concrete indicators of install-time execution, network or exfiltration behavior, 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/third_party/s2n-bignum/s2n-bignum-imported/x86_att/sm2/bignum_deamont_sm2.S",
      "hash": "blake3:23a0e4bd85ec6845a5cfb8eaf921b57dc11ad63b9119298d3d435000b7f1847f",
      "summary": "Reviewed the x86-64 assembly routine that performs SM2 bignum de-Montgomery reduction and writes the normalized 256-bit result to the output buffer. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators in this target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/crypto_test.cc",
      "hash": "blake3:6210d7579f49db8ef9722226617f6ae3dc1f1aec0799792c52457f8aaf11bc81",
      "summary": "Reviewed `aws-lc/crypto/crypto_test.cc`, which is a unit test file covering version string consistency, allocation helpers, hex parsing, FIPS-related assertions, and deprecated API invocation. I found no concrete signs of install hooks, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_dsa/fips202_glue.h",
      "hash": "blake3:1562a68262a600e1f34c7e0bac66f1ca1c341fae710ee0344fdef5d2617b8489",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/ml_dsa/fips202_glue.h`, which is a thin inline wrapper around AWS-LC SHAKE/SHA3 primitives for ML-DSA. I found no concrete malicious or supply-chain indicators in this target file: there are no install hooks, network/exfiltration logic, credential access, dynamic code loading, obfuscation, persistence, or hidden subprocess execution.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/mlkem/native/aarch64/meta.h",
      "hash": "blake3:7493d1df14965eb1b6a8a93486508ee9ac43b1298671bfa957aaffcedab14ac0",
      "summary": "Reviewed the AArch64 ML-KEM native backend metadata header, which defines compile-time feature macros and thin inline wrappers around local assembly routines. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/modes/xts.c",
      "hash": "blake3:921f1b428dd0f1944159f622c29ff7bf5ce9b82c3a97d44d7b09dfbdd621da0f",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/modes/xts.c`, which implements the XTS block-mode encrypt/decrypt routine using in-process AES block callbacks and byte-level tweak arithmetic. I found no concrete indicators of install-time execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}