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The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC2119.

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Introduction

PEER is described in the PEER Architecture. An instance of PEER consists of a user-interface that communicates with a back-end storage engine. The user-interface uses the storage engine to store and retrieve SAML metadata.

Storage Engine Protocol

The PEER Storage Engine Protocol is a protocol for accessing a PEER storage engine. The responsibility of the storage engine is to provide a store and retrieve subsystem for SAML metadata. The storage engine MUST expose a WebDAV interface which SHOULD support https and at least BASIC authentication for WebDAV clients. A storage engine client is a WebDAV client which conforms to this specification. The storage engine protocol is then a profile of WebDAV.

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