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RFC9852 · New Protocols Using TLS Must Require TLS 1.3

New Protocols Using TLS Must Require TLS 1.3

TLS 1.3 is widely used, has had comprehensive security proofs, and improves both security and privacy deficiencies in TLS 1.2. Therefore, new protocols that use TLS must require TLS 1.3. As DTLS 1.3 is not widely available or deployed, this prescription does not pertain to DTLS (in any DTLS version); it pertains to TLS only. This document updates RFC 9325. It discusses post-quantum cryptography and the security and privacy improvements in TLS 1.3 as the rationale for the update.

Официальная английская аннотация

TLS 1.3 is widely used, has had comprehensive security proofs, and improves both security and privacy deficiencies in TLS 1.2. Therefore, new protocols that use TLS must require TLS 1.3. As DTLS 1.3 is not widely available or deployed, this prescription does not pertain to DTLS (in any DTLS version); it pertains to TLS only. This document updates RFC 9325. It discusses post-quantum cryptography and the security and privacy improvements in TLS 1.3 as the rationale for the update.

Связи документа

updates: RFC9325

is_also: BCP195

Официальный источник · 2026-07-01

Полные импортированные сведения карточки
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  "id": "RFC9852",
  "number": 9852,
  "title_en": "New Protocols Using TLS Must Require TLS 1.3",
  "title_ru": "",
  "summary_ru": "",
  "purpose_ru": "",
  "use_ru": "",
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  "verification_level_ru": "Русская выжимка не подготовлена",
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  "abstract_en": "TLS 1.3 is widely used, has had comprehensive security proofs, and improves both security and privacy deficiencies in TLS 1.2. Therefore, new protocols that use TLS must require TLS 1.3. As DTLS 1.3 is not widely available or deployed, this prescription does not pertain to DTLS (in any DTLS version); it pertains to TLS only. This document updates RFC 9325. It discusses post-quantum cryptography and the security and privacy improvements in TLS 1.3 as the rationale for the update.",
  "authors": [
    "R. Salz",
    "N. Aviram"
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  "publication_date": "2026-07-01",
  "current_status": "BEST CURRENT PRACTICE",
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  "lifecycle": "active",
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  "stream": "IETF",
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  "working_group": "uta",
  "source_draft": "draft-ietf-uta-require-tls13-12",
  "page_count": 7,
  "doi": "10.17487/RFC9852",
  "keywords": [
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