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08f7315b64
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DRBG: Speed improvements
* CTR-DRBG doesn't call "NewCipher" for block encryption
* Changes API of CTR-DRBG, so that read operation implementes io.Reader
Benchmark results:
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benchmark old ns/op new ns/op delta
BenchmarkInit-4 1118 3579 +220.13%
BenchmarkRead-4 5343 14589 +173.05%
benchmark old allocs new allocs delta
BenchmarkInit-4 15 0 -100.00%
BenchmarkRead-4 67 0 -100.00%
benchmark old bytes new bytes delta
BenchmarkInit-4 1824 0 -100.00%
BenchmarkRead-4 9488 0 -100.00%
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2019-04-09 14:37:59 +01:00 |
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