The Challenge of Transport Layer Security (TLS) Testing

  TLS Engine Implementations If you are engaged in TLS testing, chances are that you have either implemented a TLS stack or engine in your new product, or you are verifying TLS functionality in a new app or device. Sources of TLS engines are: Botan, BoringSSL, Erland, GnuTLS, LibreSSL, MatrixSSL, NSS, OpenSSL, wolfSSL, and many…

Why Does SNMP, A Protocol Based On Polling Agents, Permit SNMP Notifications?

  The original design of SNMP (the Simple Network Management Protocol) was based on managers and managed devices (with agents). The manager’s responsibility was to determine what data was needed and how often it was needed. Agents provided the data only when requested by managers. Thus, the manager polled the agent and determined, based on…

What You Should Look for in a WAN Emulator Appliance?

With the advent of cloud computing and the Internet of Things, the importance of pre-deployment network performance testing cannot be over-emphasized. Will your app or device perform under all network conditions ranging from the routine to the extreme? Some apps and devices will simply not work when certain kinds of network conditions occur. Voice communications,…