We present EverCrypt: a comprehensive collection of veri\ufb01ed, high-performance cryptographic functionalities available via a carefully designed API. The API provably supports agility (choosing between multiple algorithms for the same functionality) and multiplexing (choosing between multiple implementations of the same algorithm). Through abstraction and zero-cost generic programming, we show how agility can simplify veri\ufb01cation without sacri\ufb01cing performance, and we demonstrate how C and assembly can be composed and veri\ufb01ed against shared speci\ufb01cations. We substantiate the effectiveness of these techniques with new veri\ufb01ed implementations (including hashes, Curve25519, and AES-GCM) whose performance matches or exceeds the best unveri\ufb01ed implementations. We validate the API design with two high-performance veri\ufb01ed case studies built atop EverCrypt, resulting in line-rate performance for a secure network protocol and a Merkle-tree library, used in a production blockchain, that supports 2.7 million insertions\/sec. Altogether, EverCrypt consists of over 124K veri\ufb01ed lines of specs, code, and proofs, and it produces over 29K lines of C and 14K lines of assembly code.<\/p>\n","protected":false},"excerpt":{"rendered":"
We present EverCrypt: a comprehensive collection of veri\ufb01ed, high-performance cryptographic functionalities available via a carefully designed API. The API provably supports agility (choosing between multiple algorithms for the same functionality) and multiplexing (choosing between multiple implementations of the same algorithm). Through abstraction and zero-cost generic programming, we show how agility can simplify veri\ufb01cation without sacri\ufb01cing […]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":null,"msr_publishername":"IEEE","msr_publisher_other":"","msr_booktitle":"","msr_chapter":"","msr_edition":"","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"","msr_organization":"","msr_pages_string":"","msr_page_range_start":"","msr_page_range_end":"","msr_series":"","msr_volume":"","msr_copyright":"","msr_conference_name":"IEEE Symposium on Security and 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