SCA Extensions For OpenPGP

Document Type Expired Internet-Draft (individual)
Authors Ronald Tse  , Wong Kit  , Jack Lloyd  , Daniel Wyatt  , Erick Borsboom
Last updated 2018-06-17 (latest revision 2017-12-14)
Replaces draft-ribose-openpgp-oscca
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document enables OpenPGP (RFC4880) to be used in a compliant manner according to regulations set by the SCA (the State Cryptography Administration of China) within China. Specifically, it extends OpenPGP to support the usage of SM2, SM3 and SM4 algorithms, and provides the SCA-compliant OpenPGP profile "SCA- SM234".


Ronald Tse (
Wong Kit (
Jack Lloyd (
Daniel Wyatt (
Erick Borsboom (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)