Review rev_e3bc3f73aec844738e7d1a94cee73933

{
  "summary": "Reviewed `aws-lc/ssl/test/async_bio.cc`, which implements an OpenSSL BIO filter used by AWS-LC tests to gate reads/writes with quotas and retry semantics. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation/deobfuscation, or persistence/tampering behavior.\nReviewed this ARM assembly routine for `bignum_sqr_p256k1_alt`, which computes a 256-bit square and reduces it modulo secp256k1’s prime before storing the result back to the output buffer. I found no concrete malicious or supply-chain indicators in this file: no install hooks, no network or exfiltration, no credential or environment access, no dynamic code loading, no obfuscation, and no persistence or subprocess execution.\nReviewed `aws-lc/crypto/fipsmodule/kdf/kdf_test.cc`, which is a unit test file exercising SSKDF and KBKDF implementations against local test vectors and negative-input checks. I found no concrete malicious or supply-chain indicators: there are no install hooks, network or exfiltration paths, credential/secret harvesting, dynamic code loading, obfuscation, or persistence behavior in this file.\nReviewed this x86_64 assembly implementation of `mlkem_ntttobytes_avx2`, which is an auto-derived AVX2 data-reordering routine for ML-KEM/Kyber byte conversion. I checked for install hooks, network or exfiltration paths, credential access, dynamic code loading, obfuscation, and persistence behavior; none were present in this file.\nReviewed `aws-lc/crypto/pem/pem_all.c`, which is a normal PEM codec implementation for RSA, DSA, EC, PKCS7, X509, and ECPK parameters. I checked for install-time hooks, hidden subprocess execution, network/exfiltration, credential access, dynamic code loading, obfuscation, and persistence behavior, 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/ssl/test/async_bio.cc",
      "hash": "blake3:0cf04410640ca96c0e1eeec807605d607e6e132ce1151cb3e40cf8b4d23a31e1",
      "summary": "Reviewed `aws-lc/ssl/test/async_bio.cc`, which implements an OpenSSL BIO filter used by AWS-LC tests to gate reads/writes with quotas and retry semantics. I found no concrete malicious or supply-chain indicators in this file: there are no install hooks, network or exfiltration logic, credential access, dynamic code loading, obfuscation/deobfuscation, or persistence/tampering behavior.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/arm/secp256k1/bignum_sqr_p256k1_alt.S",
      "hash": "blake3:d61f99c4bd525fe8d9c8467f6bbaa8b219b80224a869ec80a138539d691d4d36",
      "summary": "Reviewed this ARM assembly routine for `bignum_sqr_p256k1_alt`, which computes a 256-bit square and reduces it modulo secp256k1’s prime before storing the result back to the output buffer. I found no concrete malicious or supply-chain indicators in this file: no install hooks, no network or exfiltration, no credential or environment access, no dynamic code loading, no obfuscation, and no persistence or subprocess execution.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/kdf/kdf_test.cc",
      "hash": "blake3:0a0d2c871c0fb5667acfb495e0ed304d4024812757a8bddbe9274d24f7aca660",
      "summary": "Reviewed `aws-lc/crypto/fipsmodule/kdf/kdf_test.cc`, which is a unit test file exercising SSKDF and KBKDF implementations against local test vectors and negative-input checks. I found no concrete malicious or supply-chain indicators: there are no install hooks, network or exfiltration paths, credential/secret harvesting, dynamic code loading, obfuscation, or persistence behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/fipsmodule/ml_kem/mlkem/native/x86_64/src/ntttobytes.S",
      "hash": "blake3:f0b19a48207733c3c04f38377844768e34e57a5bf8c30a40396c5e373f75827b",
      "summary": "Reviewed this x86_64 assembly implementation of `mlkem_ntttobytes_avx2`, which is an auto-derived AVX2 data-reordering routine for ML-KEM/Kyber byte conversion. I checked for install hooks, network or exfiltration paths, credential access, dynamic code loading, obfuscation, and persistence behavior; none were present in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/crypto/pem/pem_all.c",
      "hash": "blake3:81c2f6ce864ede96db0a2e829ea68d636d80ab9d9577f38659f06fdccff2c278",
      "summary": "Reviewed `aws-lc/crypto/pem/pem_all.c`, which is a normal PEM codec implementation for RSA, DSA, EC, PKCS7, X509, and ECPK parameters. I checked for install-time hooks, hidden subprocess execution, 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"
    }
  ]
}