IETF RFC 9963
[ACTIVE]
Legacy RSASSA-PKCS1-v1_5 Code Points for TLS 1.3
Metadata
- Publisher
- IETF
- Doc Type
- Standard
- Pages
- 6
- Abstract
- This document allocates code points for the use of RSASSA-PKCS1-v1_5 with client certificates in TLS 1.3. This removes an obstacle for some deployments to migrate to TLS 1.3.
- Publication Date
- 2026-04-01
- Status Note
- Proposed Standard
- DOI
10.17487/RFC9963- Link
- https://doi.org/10.17487/RFC9963
- Author(s)
- David BenjaminAndrei Popov
Latest version of IETF RFC 9963
Document Versions — IETF RFC 9963
-
▶ IETF RFC 9963 (2026-04-01)THIS DOC [ACTIVE] [LATEST VERSION]
Normative Reference(s)
- NIST FIPS 180-4 [Active]
- Trusted Computing Group, "Trusted Platform Module Library, Part 1: Architecture", Family 2.0, Level 00, Revision 01.59, 8 November 2019, <https://trustedcomputinggroup.org/wp-content/uploads/TCG_TPM2_r1p59_Part1_Architecture_pub.pdf>. EXTERNAL
- Trusted Computing Group, "TPM Main, Part 2 - Structures of the TPM", Level 2, Version 1.2, Revision 116, 1 March 2011, <https://trustedcomputinggroup.org/wp-content/uploads/TPM-Main-Part-2-TPM-Structures_v1.2_rev116_01032011.pdf>. EXTERNAL
- IETF RFC 2119 [Active*]
- IETF RFC 8017 [Active*]
- IETF RFC 8174 [Active*]
- IETF RFC 8446 [Superseded*]
- T-REC-X.690.2021 — X690 EXTERNAL
Bibliographic Reference(s)
- 10.23919-tma.2017.8002897 — PRIVACY EXTERNAL
- Delignat-Lavaud, A., "Mozilla Foundation Security Advisory 2014-73: RSA Signature Forgery in NSS", 24 September 2014, <https://www.mozilla.org/en-US/security/advisories/mfsa2014-73/>. EXTERNAL
- Moeller, B., "This POODLE bites: exploiting the SSL 3.0 fallback", Google Security Blog, 14 October 2014, <https://security.googleblog.com/2014/10/this-poodle-bites-exploiting-ssl-30.html>. EXTERNAL
- RFC9954 — RFC9954 EXTERNAL
Source Data (JSON)
Full registry record with provenance metadata. Open directly: /api/doc/RFC9963.json
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Plain text (ISO 690 compliant)
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IETF RFC 9963, Legacy RSASSA-PKCS1-v1_5 Code Points for TLS 1.3. Available at https://doi.org/10.17487/RFC9963
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IETF RFC 9963, Legacy RSASSA-PKCS1-v1_5 Code Points for TLS 1.3. Available at https://doi.org/10.17487/RFC9963
HTML (ISO 690 compliant)
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IETF RFC 9963, Legacy RSASSA-PKCS1-v1_5 Code Points for TLS 1.3. Available at https://doi.org/10.17487/RFC9963
Snippet:
<span class="citation"><cite>IETF RFC 9963</cite>, Legacy RSASSA-PKCS1-v1_5 Code Points for TLS 1.3. Available at <a href="https://doi.org/10.17487/RFC9963" target="_blank" rel="noopener">https://doi.org/10.17487/RFC9963</a></span>
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Preview:
IETF RFC 9963, Legacy RSASSA-PKCS1-v1_5 Code Points for TLS 1.3
doi: 10.17487/RFC9963
url: https://doi.org/10.17487/RFC9963
doi: 10.17487/RFC9963
url: https://doi.org/10.17487/RFC9963
Snippet:
<li> <cite id="bib-rfc9963">IETF RFC 9963</cite>, Legacy RSASSA-PKCS1-v1_5 Code Points for TLS 1.3 <span class="doi">10.17487/RFC9963</span> </li>
Referenced By
- IETF RFC 9846 [Active*]