libteep

libcteep is a C library for encoding/decoding IETF TEEP Protocol messages.

Overview

• Implemented C-native data representation.
• Using QCBOR and t_cose for decoding signed CBOR binary data.
• There are 3 sample codes for interoperability testing.
  1. Verifying and Decoding TEEP Protocol message binary.
  2. Signing and Encoding TEEP Protocol message binary.
  3. TEEP/HTTP Client Communicating with TEEP/HTTP Server using TEEP-over-HTTP.
  • The above TEEP Protocol message is protected by the COSE_Sign1 structure.

Getting started

Parse & Encode tests with OpenSSL 1.1.1

docker build -f ossl.Dockerfile -t libteep_ossl .
docker run -t libteep_ossl

Parse & Encode tests with OpenSSL 3

docker build -f ossl3.Dockerfile -t libteep_ossl3 .
docker run -t libteep_ossl3

Parse & Encode tests with Mbed TLS

docker build -f psa.Dockerfile -t libteep_psa .
docker run -t libteep_psa

TEEP over HTTP Client test

Use tamproto as a TAM.

git clone https://github.com/ko-isobe/tamproto.git ../tamproto
docker-compose up

TEEP Protocol Message Examples

The following description Markdown and CBOR files are compliant with draft-ietf-teep-protocol-10.

• QueryRequest

  • query_request.md
  • query_request.cbor
  • query_request_cose.cbor

• QueryResponse

  • query_response.md
  • query_response.cbor
  • query_response_cose.cbor

• Update

  • update.md
  • update.cbor
  • update_cose.cbor

• Success

  • teep_success.md
  • teep_success.cbor
  • teep_success_cose.cbor

• Error

  • teep_error.md
  • teep_error.cbor
  • teep_error_cose.cbor

License and Copyright

BSD 2-Clause License

Copyright (c) 2020-2023 SECOM CO., LTD. All Rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.