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The Hypertext Transfer Protocol Attestable (HTTPA) Version 2

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Hans Wang , Gordon King , Nick Li , Ned Smith , Krzysztof Sandowicz
Last updated 2024-05-07 (Latest revision 2023-11-04)
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The Hypertext Transfer Protocol Attestable version 2 (HTTPA/2) is an HTTP extension. It is a transaction-based protocol agnostic to Transport Layer Security (TLS) in which the Trusted Execution Environment (TEE) is considered a new type of requested resource over the Internet. The original Hypertext Transfer Protocol Attestable (HTTPA) (referred to as HTTPA/1 in the rest of the document) includes remote attestation (RA) process onto the HTTPS protocol in the assumption of using Transport Layer Security (TLS) across the Internet. In contrast, the design of HTTPA/2 could establish a trusted (attested) and more secure communication without dependence on TLS. The definition of Attestation for the purposes of this draft: The process of vouching for the accuracy of TEE based services, configuration, and data where the TEE conveys Evidence about its environment, roots of trust and protected functions. The Evidence is a digital expression of TEE trustworthiness.


Hans Wang
Gordon King
Nick Li
Ned Smith
Krzysztof Sandowicz

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)