private static int getSigningAlg()

in java/remoteprovisioning/EekCertChainDeserializer.java [77:94]

• 18 lines of code
• 4 McCabe index (conditional complexity)

  private static int getSigningAlg(CBORObject certObj) throws CborException {
    CborUtil.checkArray(certObj, 4 /* expectedLength */, "SignedEek");
    byte[] protectedHeaders = CborUtil.getSafeBstr(certObj.get(0), "SignedEek[0]");
    CBORObject protMap = CBORObject.DecodeFromBytes(protectedHeaders);
    CborUtil.checkMap(protMap, "Decoded SignedEek[0]");
    CBORObject algObj = protMap.get(1);
    if (algObj.isNumber()) {
      int alg = algObj.AsInt32();
      if (alg != -7 && alg != -8) {
        throw new CborException("Decoded SignedEek[0] entry for Algorithm is not valid: " + alg,
            CborException.DESERIALIZATION_ERROR);
      }
      return alg;
    } else {
      throw new CborException("Decoded SignedEek[0] entry for Algorithm is not a number.",
          CborException.DESERIALIZATION_ERROR);
    }
  }