Russ Housley. TLS 1.3 Extension for Certificate-Based Authentication with an External Pre-Shared Key. RFC, 8773:1-11, March 2020. [doi]
@article{rfc8773, title = {TLS 1.3 Extension for Certificate-Based Authentication with an External Pre-Shared Key}, author = {Russ Housley}, year = {2020}, month = {March}, doi = {10.17487/RFC8773}, url = {https://doi.org/10.17487/RFC8773}, researchr = {https://researchr.org/publication/rfc8773}, cites = {0}, citedby = {0}, journal = {RFC}, volume = {8773}, pages = {1-11}, }