Review rev_96448f7cd6c84b49b87f4ee093f4ae13

{
  "summary": "Reviewed this ARM64 assembly routine for p384 tripling and modular reduction. It contains only fixed, local big-number arithmetic and return logic; I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence tampering, or other hidden payload behavior.\nReviewed `aws-lc/crypto/fipsmodule/self_check/fips.c`, which only exposes FIPS mode/query helpers and thread-local counter access for approved algorithms. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in this file.\nReviewed `aws-lc/crypto/kyber/pqcrystals_kyber_ref_common/cbd.c`, which only implements local little-endian byte loading and centered-binomial polynomial sampling for Kyber. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this file.\nReviewed this x86-64 assembly implementation of `bignum_add_p384`, which performs constant-time modular addition for P-384 and writes the result to the output buffer. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators in the target file.\nReviewed `aws-lc/util/fipstools/acvp/acvptool/subprocess/hmac.go`, which unmarshals ACVP HMAC test vectors, validates hex lengths, decodes inputs, and delegates HMAC computation to a provided subprocess interface before returning JSON responses. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators 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/arm/p384/bignum_triple_p384.S",
      "hash": "blake3:602d0d09dc849d7033454910513dbeeceda068f7bc52de06232486aa04db61da",
      "summary": "Reviewed this ARM64 assembly routine for p384 tripling and modular reduction. It contains only fixed, local big-number arithmetic and return logic; I found no concrete indicators of install hooks, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence tampering, or other hidden payload behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/self_check/fips.c",
      "hash": "blake3:72771f403e8a30f9d2f523dd0cbc6631a56584bdb6bd99107bd80eb14cbf00c3",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/self_check/fips.c`, which only exposes FIPS mode/query helpers and thread-local counter access for approved algorithms. I found no concrete indicators of install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, or persistence in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/kyber/pqcrystals_kyber_ref_common/cbd.c",
      "hash": "blake3:d58f8724f8881a39a1b8f64db724b4c078a04c0b2d73f516a291c5c4d745fec8",
      "summary": "Reviewed `aws-lc/crypto/kyber/pqcrystals_kyber_ref_common/cbd.c`, which only implements local little-endian byte loading and centered-binomial polynomial sampling for Kyber. I found no concrete indicators of install-time execution, network/exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other supply-chain compromise behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/x86_att/p384/bignum_add_p384.S",
      "hash": "blake3:5ca39aa7e446715e819a89bce119055bf6944e39a1ee242845de87440c3cda4a",
      "summary": "Reviewed this x86-64 assembly implementation of `bignum_add_p384`, which performs constant-time modular addition for P-384 and writes the result to the output buffer. I checked for install hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, persistence tampering, and hidden subprocess execution, and found no concrete malicious or supply-chain indicators in the target file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/util/fipstools/acvp/acvptool/subprocess/hmac.go",
      "hash": "blake3:41b7c1275892cdba2b4ee4f0127e4ddf06e6c14c5a4743498c211347ad6e2d9a",
      "summary": "Reviewed `aws-lc/util/fipstools/acvp/acvptool/subprocess/hmac.go`, which unmarshals ACVP HMAC test vectors, validates hex lengths, decodes inputs, and delegates HMAC computation to a provided subprocess interface before returning JSON responses. I checked for install-time hooks, network or exfiltration behavior, credential access, dynamic code loading, obfuscation, and persistence, and found no concrete malicious or supply-chain indicators in this file.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}