{"document_id":"BLC-STUDY-0675","slug":"deco-tls","title":"DECO: proving statements about TLS data without a trusted hardware box","authors":"Fan Zhang, Deepak Maram, Harjasleen Malvai, Steven Goldfeder and Ari Juels","year":2019,"date_label":"2019","publisher":"Fan Zhang, Deepak Maram, Harjasleen Malvai, Steven Goldfeder and Ari Juels","paper_type":"Design paper","category":"Data and agents","topics":["Data and agents"],"source_url":"https://eprint.iacr.org/2019/1025","source_label":"ePrint 2019/1025","legacy_pdf_path":null,"sha256":null,"sha256_note":"No hash is published. This build does not store those PDF bytes, so a checksum would be invented. Where a legacy path exists, it points at the Internet Archive copy of the old library.","version":"Source cited by the 2019 study. The study is the reading. This page does not add a second essay.","doi":null,"rights_status":"Official external source only","source_status":"Official source","use_status":"Metadata and commentary only. The reading is the study page.","licence":null,"licence_label":"No licence recorded. Rights status under review.","full_text":null,"full_text_reason":"Full text is not published on this page. Public availability is not a licence to republish a document. Blockchain Lab has not recorded a licence that permits an HTML transcription, a training set, or a retrieval corpus of the paper. Text on this page is Blockchain Lab's own wording, or a pointer to a study that is also Blockchain Lab's wording.","repository":null,"editorial_line":"DECO proposes that a user prove a fact about a TLS session with a website, to a verifier, without putting the session inside trusted hardware.","canonical_url":"https://blockchainlab.com/whitepaper/deco-tls","record_url":"https://blockchainlab.com/research/corpus/papers/deco-tls","study_url":"https://blockchainlab.com/whitepaper/deco-tls","last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Canonical reading","label":"DECO study","href":"/whitepaper/deco-tls"},{"rel":"Related paper","label":"Town Crier","href":"/whitepaper/town-crier"},{"rel":"Related paper","label":"Chainlink","href":"/whitepaper/chainlink"},{"rel":"Related paper","label":"TLSNotary","href":"/whitepaper/tlsnotary"}]}