Due to https://github.com/ProtonMail/go-crypto/pull/208, `RPM versions < 4.17` cannot recognize signature information generated by `ProtonMail/go-crypto`. (see https://github.com/ProtonMail/go-crypto/issues/263) There is no need to consider fixing this issue until a better solution is available; this issue is only for archiving purposes. **Affected versions** : all versions after a8e7caedfa062cd8ea34f722806b3f162d24e939.