Encrypted email search indexing

*"Various hurdles are preventing wide-spread adoption of PGP encrypted communication, with easy searchability being one of them. I propose a standard allowing users to search through encrypted email safely. The search is tailored for text messages containing distinct words. Searching is achieved through a search index in plain-text attached to each email. The index contains each of the unique words contained in a message, salt hashed. There will be 10-50 salts per email account used randomly on a per word basis. Larger amount of salts mean more safety and more expensive search. Incoming messages will also get appended with a search index using IMAP APPEND command. ..."* https://ipfs.io/ipfs/QmVntBs8AxmeuLacGappM5LhB8ao9k2RPijvByESt4HmgC