▁compression ▁algorithms , ▁see ▁H os se ini ▁et ▁al , ▁ 2 0 1 6 . ▁ ▁Enc ryption ▁The ▁encryption ▁of ▁FA ST A ▁files ▁has ▁been ▁mostly ▁addressed ▁with ▁a ▁specific ▁encryption ▁tool : ▁Cry fa . ▁Cry fa ▁uses ▁A ES ▁encryption ▁and ▁enables ▁to ▁compact ▁data ▁besides ▁encryption . ▁It ▁can ▁also ▁address ▁FA ST Q ▁files . ▁ ▁Ext ended ▁Format ▁FA ST A ▁format ▁was ▁extended ▁by ▁FA ST Q ▁format ▁from ▁the ▁S anger ▁Centre ▁in ▁Cambridge . ▁ ▁Working ▁with ▁FA ST A ▁files ▁ ▁A ▁ple th ora ▁of ▁user - friend ly ▁scripts ▁are ▁available ▁from ▁the ▁community ▁to ▁perform ▁FA ST A ▁file ▁manip ulations . ▁Online ▁tool box ▁are ▁also ▁available ▁such ▁as ▁Fa Box ▁or ▁the ▁FA ST X - Tool kit ▁within ▁Gal axy ▁servers . ▁For ▁instance , ▁these ▁can ▁be ▁used ▁to ▁seg reg ate ▁sequence ▁headers / ident ifiers , ▁rename ▁them , ▁short en ▁them , ▁or ▁extract ▁sequences ▁of ▁interest ▁from ▁large ▁FA ST A ▁files ▁based ▁on ▁a ▁list ▁of ▁wanted ▁ident ifiers ▁( am ong ▁other ▁available ▁functions ). ▁A ▁tree - based ▁approach ▁to ▁sorting ▁multi - FA ST A ▁files ▁( T REE 2 FA ST A ) ▁also ▁exists ▁based ▁on ▁the ▁color ing ▁and / or ▁annotation ▁of ▁sequence ▁of ▁interest ▁in ▁the ▁Fig Tree ▁vie wer . ▁Additionally , ▁Bio con duct or . org ' s ▁Bi ost r ings ▁package ▁can ▁be ▁used ▁to