1
Click on Configuration on the left-hand side menu.
2
Under the Configuration menu, click on the Options.
3
Check the box Allow SignVer+EncDec asymmetric key usages.
4
Click on [ Save ].
Procedural guide to enable multi-usage asymmetric keys (Encrypt/Decrypt + Sign/Verify) in KMES Series 3 for OpenSSL Provider use cases.