RFC 8555

Automatic Certificate Management Environment (ACME), March 2019

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R. Barnes
J. Hoffman-Andrews
D. McCarney
J. Kasten
acme (sec)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC8555

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Public Key Infrastructure using X.509 (PKIX) certificates are used for a number of purposes, the most significant of which is the authentication of domain names. Thus, certification authorities (CAs) in the Web PKI are trusted to verify that an applicant for a certificate legitimately represents the domain name(s) in the certificate. As of this writing, this verification is done through a collection of ad hoc mechanisms. This document describes a protocol that a CA and an applicant can use to automate the process of verification and certificate issuance. The protocol also provides facilities for other certificate management functions, such as certificate revocation.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.