Review rev_cf027812cd56460090ae5f61aa980578

{
  "summary": "Reviewed `aws-lc/crypto/fipsmodule/aes/key_wrap.c`, which implements RFC 3394 and RFC 5649 AES key wrap/unwrap routines with FIPS service-indicator updates. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload execution, and found no concrete malicious or supply-chain indicators in this file.\n`aws-lc/crypto/fipsmodule/ec/wnaf.c` is a straight elliptic-curve wNAF scalar-multiplication implementation with precomputation and point addition/doubling helpers. I checked it for install-time hooks, hidden subprocess execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence tampering, and found no concrete malicious or supply-chain indicators.\nReviewed `aws-lc/include/openssl/asm_base.h`, which is a public assembly-support header that defines ELF stack notes and Arm/x86 control-flow protection macros plus GNU property annotations. I found no concrete malicious or supply-chain indicators in this file: no install-time hooks, network or exfiltration code, credential access, dynamic code loading, obfuscation, or persistence behavior.\nReviewed the x86-64 assembly implementation of `bignum_mul_p25519`, which performs Curve25519 field multiplication and reduction using fixed arithmetic instructions and ABI save/restore code. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation/deobfuscation, persistence tampering, and other hidden payload execution, and found no concrete malicious or supply-chain indicators in this file.\nReviewed the target x86-64 assembly routine for P-256 modular reduction. It contains only arithmetic register/memory operations and ABI/register-save boilerplate; I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload execution 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/crypto/fipsmodule/aes/key_wrap.c",
      "hash": "blake3:970cfef641c8af5be3dc2c2a8da17d48bec7f238929444c6f2934d136fee62f5",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/aes/key_wrap.c`, which implements RFC 3394 and RFC 5649 AES key wrap/unwrap routines with FIPS service-indicator updates. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, and other hidden payload execution, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ec/wnaf.c",
      "hash": "blake3:4b7e8f7fcf264ba9caba18a8762d7438d81369146dcee33bc9512de286290ed4",
      "summary": "`aws-lc/crypto/fipsmodule/ec/wnaf.c` is a straight elliptic-curve wNAF scalar-multiplication implementation with precomputation and point addition/doubling helpers. I checked it for install-time hooks, hidden subprocess execution, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence tampering, and found no concrete malicious or supply-chain indicators.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/include/openssl/asm_base.h",
      "hash": "blake3:30abfb55174fc7263f6c3031678efcae3b852aaf3b84d534741702d275da0144",
      "summary": "Reviewed `aws-lc/include/openssl/asm_base.h`, which is a public assembly-support header that defines ELF stack notes and Arm/x86 control-flow protection macros plus GNU property annotations. I found no concrete malicious or supply-chain indicators in this file: no install-time hooks, network or exfiltration code, credential access, dynamic code loading, obfuscation, or persistence behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/curve25519/bignum_mul_p25519.S",
      "hash": "blake3:24561cf163a3952cf7c137fddd2add2144ca9e24500eb047d0c5fa4da9322b89",
      "summary": "Reviewed the x86-64 assembly implementation of `bignum_mul_p25519`, which performs Curve25519 field multiplication and reduction using fixed arithmetic instructions and ABI save/restore code. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation/deobfuscation, persistence tampering, and other hidden payload execution, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/p256/bignum_mod_p256_alt.S",
      "hash": "blake3:4927d90bda048775865f855e4abec30932e77b010bbbcb964ebb0897c193a679",
      "summary": "Reviewed the target x86-64 assembly routine for P-256 modular reduction. It contains only arithmetic register/memory operations and ABI/register-save boilerplate; I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload execution in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}