Enterprise Integration Patterns
Conversation Patterns
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Verify IdentityConversation Patterns » Starting a Conversation

A provider requires authentication of the initiator's identity.

How can a provider verify the claimed identity of a consumer in the absence of a certificate authority?

The provider sends a message with unique data to the address supplied by the consumer. The consumer has to pass the unique data back to service provider to complete the authentication.

Introduction
Overview
Preface
Table of Contents
Introduction
Describing Conversations
Choreography
Orchestration
Hypermedia State
Conversation Vocabulary
Discovery
Dynamic Discovery
Advertise Availability
Consult Directory
Referral
Leader Election
Starting a Conversation
Three-Way Hand Shake
Acquire Token First
Rotate Tokens
Verify Identity
User Grants Access
Basic Conversations
Fire-and-Forget
Asynchronous Request-Response
Request-Response with Retry
Polling
Subscribe-Notify
Quick Acknowledgment
Intermediaries
Proxy
Relay
Load Balancer
Scatter-Gather
Managing Distributed Systems
Heartbeat
Resource Management
Incremental State Build-up
Lease
Renewal Reminder
Ensuring Consistency
Ignore Error
Compensating Action
Tentative Operation
Coordinated Agreement
Appendices
Bibliography