Authenticate with Private Key JWT using Amazon Bedrock AgentCore Identity | Amazon Web Services
Amazon Bedrock AgentCore Identity now supports Private Key JWT client authentication for agents. With Private Key JWT client authentication, your agents can authenticate to a downstream identity provider’s token endpoint using a signed JSON Web Token (JWT) client assertion instead of a shared OAuth 2.0 client secret. You can register a public key with your identity provider, while the corresponding private key stays in an AWS Key Management Service (AWS KMS). To authenticate, AgentCore Identity uses AWS KMS to sign the assertion and sends the signed assertion to the identity provider, which verifies it using the public key you registered.
This post explains how Private Key JWT client authentication works in AgentCore Identity and reviews the supported grant flows. We then walk through creating an AWS KMS signing key, registering its public key with your identity provider, configuring a credential provider on the AWS Management Console, and reviewing example AWS...
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