Add batch encrypt/decrypt methods (untested)
Add batch encrypt/decrypt methods (untested)

kelcecil/securedrop,jaseg/securedrop,heartsucker/securedrop,kelcecil/securedrop,jeann2013/securedrop,kelcecil/securedrop,heartsucker/securedrop,chadmiller/securedrop,harlo/securedrop,jrosco/securedrop,jeann2013/securedrop,ageis/securedrop,kelcecil/securedrop,conorsch/securedrop,chadmiller/securedrop,pwplus/securedrop,conorsch/securedrop,pwplus/securedrop,harlo/securedrop,jrosco/securedrop,GabeIsman/securedrop,micahflee/securedrop,pwplus/securedrop,jaseg/securedrop,kelcecil/securedrop,conorsch/securedrop,conorsch/securedrop,heartsucker/securedrop,jaseg/securedrop,ehartsuyker/securedrop,jaseg/securedrop,ageis/securedrop,harlo/securedrop,chadmiller/securedrop,jrosco/securedrop,harlo/securedrop,micahflee/securedrop,GabeIsman/securedrop,garrettr/securedrop,kelcecil/securedrop,GabeIsman/securedrop,pwplus/securedrop,jeann2013/securedrop,harlo/securedrop,jeann2013/securedrop,GabeIsman/securedrop,conorsch/securedrop,GabeIsman/securedrop,jeann2013/securedrop,jrosco/securedrop,ehartsuyker/securedrop,pwplus/securedrop,ageis/securedrop,chadmiller/securedrop,heartsucker/securedrop,garrettr/securedrop,ehartsuyker/securedrop,garrettr/securedrop,jrosco/securedrop,micahflee/securedrop,jrosco/securedrop,harlo/securedrop,jaseg/securedrop,ehartsuyker/securedrop,ehartsuyker/securedrop,ageis/securedrop,heartsucker/securedrop,pwplus/securedrop,jaseg/securedrop,GabeIsman/securedrop,chadmiller/securedrop,jeann2013/securedrop,ehartsuyker/securedrop,micahflee/securedrop,chadmiller/securedrop,garrettr/securedrop