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dpop

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Go library for DPoP (OAuth 2.0 Demonstration of Proof-of-Possession at the Application Layer).

This implementation is current for draft-fett-oauth-dpop-03, published October 30, 2019.

Usage

Go API

See the godoc.

CLI

This repository also contains a small command line tool that can be used for trying out DPoP, demo-dpop:

# build the demo-dpop binary
make

# generates a new private key to use for signing
demo-dpop create-key --key-name my-local-key

# Outputs an example curl line with a DPoP proof in a header, which can be used during a token exchange:
demo-dpop proof --key-name my-local-key --url https://as.example.com/token --method POST

# Outputs an example curl line with a DPoP proof header, which can be used in conjunction with an access
# token for a resource server access:
demo-dpop proof --key-name my-local-key --url https://resource1.example.com/api/endpoint --method POST

Dependencies

  • Go 1.12 (using go modules)

Code signing

This repo also contains a work-in-progress to use the Secure Enclave Processor (SEP) as a key-storage for a signing a DPoP JWT. This has additional dependencies:

  • macOS >= 10.12
  • TouchID hardware
  • Developer Tools installed
  • Code Signing certificate available

(macOS requires code signing to use the Keychain with the enclave)

License

dpop is licensed under the Apache License, Version 2.0