Encrypted data without a key are something that is irreversible, but you wish it wasn't, really. I think you have to accept it as a fact of life. Your wish to

Encrypted data without a key are something that is irreversible, but you wish it wasn't, really. I think you have to accept it as a fact of life. Your wish to "reading data off the phones of murder victims" is akin to "it'd be cool they wouldn't be dead, they could tell us who the murderer was".