Add method to encrypt files
Add method to encrypt files

jrosco/securedrop,ehartsuyker/securedrop,jeann2013/securedrop,jeann2013/securedrop,GabeIsman/securedrop,ehartsuyker/securedrop,harlo/securedrop,garrettr/securedrop,conorsch/securedrop,jrosco/securedrop,jrosco/securedrop,jaseg/securedrop,ehartsuyker/securedrop,jaseg/securedrop,ehartsuyker/securedrop,chadmiller/securedrop,jeann2013/securedrop,micahflee/securedrop,jaseg/securedrop,conorsch/securedrop,heartsucker/securedrop,kelcecil/securedrop,kelcecil/securedrop,chadmiller/securedrop,ageis/securedrop,harlo/securedrop,harlo/securedrop,kelcecil/securedrop,chadmiller/securedrop,GabeIsman/securedrop,conorsch/securedrop,conorsch/securedrop,garrettr/securedrop,kelcecil/securedrop,kelcecil/securedrop,ageis/securedrop,harlo/securedrop,chadmiller/securedrop,harlo/securedrop,pwplus/securedrop,garrettr/securedrop,jrosco/securedrop,heartsucker/securedrop,chadmiller/securedrop,jeann2013/securedrop,pwplus/securedrop,GabeIsman/securedrop,jaseg/securedrop,pwplus/securedrop,jrosco/securedrop,pwplus/securedrop,heartsucker/securedrop,conorsch/securedrop,chadmiller/securedrop,harlo/securedrop,ageis/securedrop,kelcecil/securedrop,garrettr/securedrop,ehartsuyker/securedrop,jaseg/securedrop,micahflee/securedrop,GabeIsman/securedrop,pwplus/securedrop,jeann2013/securedrop,heartsucker/securedrop,jrosco/securedrop,mark-in/securedrop-prov-upstream,micahflee/securedrop,pwplus/securedrop,mark-in/securedrop-prov-upstream,GabeIsman/securedrop,GabeIsman/securedrop,jeann2013/securedrop,mark-in/securedrop-prov-upstream,jaseg/securedrop,heartsucker/securedrop,ehartsuyker/securedrop,ageis/securedrop,mark-in/securedrop-prov-upstream,micahflee/securedrop