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Can encryption be parallelized? With block cipher chaining modes like CFB, each block depends on the previous block. You can parallelize encryption if you use E
by FooBarWidget 16y ago
Can encryption be parallelized? With block cipher chaining modes like CFB, each block depends on the previous block. You can parallelize encryption if you use ECB but that's known to be insecure.
- gxti 16y agoIndividual streams aren't parallelizable, but if you have many streams open at once you could hypothetically process them together in parallel instead of separately in parallel as it is with a CPU. Also, there are block modes that are seekable and thus could be parallelized if you had a big enough backlog, CTR mode in particular, but parallelizing individual streams is not likely to reap big enough rewards to justify the complexity.