Review rev_1b4b3ec54af04dbfa932ff7b95fb5377

{
  "summary": "Reviewed `cpu_aarch64_apple.c`, which initializes OpenSSL CPU feature flags on Apple AArch64 via `sysctlbyname`, brand-string checks, and an optional `OPENSSL_armcap` environment override. 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 Perl assembly generator in `aws-lc/crypto/test/asm/trampoline-x86.pl`. It emits x86 test trampolines and helper routines for ABI testing, and I checked for install-time execution, hidden subprocesses, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence; none were present in this file.\nReviewed `aws-lc/include/openssl/des.h`, a public DES/3DES API header containing type definitions, constants, and encryption/key-schedule function declarations plus deprecation notes. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network/exfiltration paths, credential access, dynamic code loading, obfuscation, or persistence behavior.\nReviewed the ARM assembly implementation of `bignum_normalize`, which performs in-place big-number normalization by shifting the input left until the top bit is set and returning the shift count. I checked for install-time hooks, network or credential access, dynamic code loading, obfuscation/deobfuscation, persistence, and other hidden control transfer in this target file and found no concrete malicious or supply-chain indicators.\nReviewed `bignum_mod_n25519_4.S`, an x86-64 assembly routine that reduces a 256-bit value modulo the Curve25519 basepoint order using fixed constants and conditional subtraction. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration code, credential access, dynamic code loading, 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/crypto/fipsmodule/cpucap/cpu_aarch64_apple.c",
      "hash": "blake3:ae377ba7666759890242a32121abbf91ad28277ba21fb9e26f67e6b97f434125",
      "summary": "Reviewed `cpu_aarch64_apple.c`, which initializes OpenSSL CPU feature flags on Apple AArch64 via `sysctlbyname`, brand-string checks, and an optional `OPENSSL_armcap` environment override. 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/crypto/test/asm/trampoline-x86.pl",
      "hash": "blake3:994abf5c03d372bdcc9dfb5d8e4dfd27acc58c8985e65ca55c1cab35637e5179",
      "summary": "Reviewed the Perl assembly generator in `aws-lc/crypto/test/asm/trampoline-x86.pl`. It emits x86 test trampolines and helper routines for ABI testing, and I checked for install-time execution, hidden subprocesses, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence; none were present in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/include/openssl/des.h",
      "hash": "blake3:216f85070fd1b8f1f014744ecf34543aab873649e502adf6b3694e62e88f85b1",
      "summary": "Reviewed `aws-lc/include/openssl/des.h`, a public DES/3DES API header containing type definitions, constants, and encryption/key-schedule function declarations plus deprecation notes. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network/exfiltration paths, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/generic/bignum_normalize.S",
      "hash": "blake3:4f6d38af685a2b6b604d470e9351bcaec58e214861a135d80e148c3afd666be4",
      "summary": "Reviewed the ARM assembly implementation of `bignum_normalize`, which performs in-place big-number normalization by shifting the input left until the top bit is set and returning the shift count. I checked for install-time hooks, network or credential access, dynamic code loading, obfuscation/deobfuscation, persistence, and other hidden control transfer in this target file 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/curve25519/bignum_mod_n25519_4.S",
      "hash": "blake3:c187c9a0876be9eb4dc8e12b5baaaf55eaab22ab129b4cea76565f7e6f93a2d6",
      "summary": "Reviewed `bignum_mod_n25519_4.S`, an x86-64 assembly routine that reduces a 256-bit value modulo the Curve25519 basepoint order using fixed constants and conditional subtraction. I found no concrete malicious or supply-chain indicators in this file: no install hooks, network or exfiltration code, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}