Pretzel: Email encryption and provider-supplied functions are compatible
Trinabh Gupta,
Henrique Fingler,
Lorenzo Alvisi
et al.
Abstract:Emails today are often encrypted, but only between mail servers-the vast majority of emails are exposed in plaintext to the mail servers that handle them. While better than no encryption, this arrangement leaves open the possibility of attacks, privacy violations, and other disclosures. Publicly, email providers have stated that default end-to-end encryption would conflict with essential functions (spam filtering, etc.), because the latter requires analyzing email text. The goal of this paper is to demonstrate… Show more
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