![]() ![]() ![]() Since there are 31 556 952 seconds in a year, we can multiply by that to get the keys per year. Together, they could perform at 2e18 flops, or 2 000 000 000 000 000 000 keys per second (2 quintillion)ġ billion gpus 2 gigaflops each (2 billion flops) Say you had a billion of these, all hooked together in a massively parallel computer system. A high-end GPU can typically do about 2 billion calculations per second (2 gigaflops). ![]() When doing mundane, repetitive calculations (such as brute-forcing or bitcoin mining), the GPU is better suited than the CPU. How long would it take to flip through each of the possible keys? Typically, only 50% of these need to be exhausted to yield the correct key, so only 2 255 need to be guessed. With each character having two possibilities (1 or 0), there are 2 256 possible combinations. This means that the key, the thing that turns encrypted data into unencrypted data, is string of 256 1s or 0s. It's used worldwide by everyone from corporations to the US government. I did a report on encryption a while ago, and I thought I'd post a bit of it here as it's quite mind-boggling.ĪES-256 is the standardized encryption specification. ![]()
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