Hashing big file with FileRead

Hash FileReader JS

Hashing big file with FileReader JS

website example: https://lvaccaro.github.io/hashfilereader/ medium post: https://medium.com/@0xVaccaro/hashing-big-file-with-filereader-js-e0a5c898fc98 Re-order chunk techniques: time-shifting: post-process not in order chunks memory-buffered: storing not in order chunks and then process at each new ordered chunk Performance

Tested on Chrome 65.0 on macOS 10.12.6 both techniques with chunk size of 1MB and 10MB.

File size	Time (1MB)	Time (10MB)	Memory (1MB)	Memory (10MB)
1Mb	0.052 sec	0.056 sec	0.056 sec	0.043 sec
10Mb	0.478 sec	0.42 sec	0.414 sec	0.414 sec
100Mb	4.259 sec	3.865 sec	4.014 sec	3.681 sec
500Mb	50.459 sec	21.778 sec	20.236 sec	18.611 sec
1Gb	---	---	41.568 sec	37.096 sec