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Tag Archive for hardware

Hardware key removal on a test system

One of my company’s applications still requires a hardware key to run, but we’re currently in the process of removing that requirement and replacing it with an online check. The issue we are having is that we allow our customers to set up test systems with copies of their live databases. With the hardware keys, that isn’t a problem as they get a special key that tells the software it is a test, but we’re trying to figure a way to do this with a software only check. Our only idea so far is to check the hardware against a registered list in the database, but before we implement this, I want to ask how others have solved similar problems?

idquantique .vs. rdrand

We are currently looking at using the idquantique random number generator device to provide random numbers. There are some issues though. We would only be using one device and we have at least 5 servers that would need to use it and this number will probably increase in the future. This implies that blocks of random numbers would have to be sent to the servers in some way. All the servers are running Linux.

How Do Computers Process Conditional/Input/ Event Based Code? [duplicate]

This question already has answers here: How Do Computers Work? [closed] (12 answers) Closed 9 years ago. I understand that computers are basically a complex system of electrical signatures that can calculate based on logic boards, and some sort of gate mechanism, but how do computers process something like if the number produced by the […]

strategies for dealing with machine epsilon

Say you have a situation where you divide and then multiply a float, and you need to guarantee that it survives macheps (ie multiplication output equals division input). What are known strategies for guaranteeing this? Rounding would work, but anything else?