olemus
identiteedisertifikaat, mille on signeerinud sama olem, kelle/mille identiteeti ta tõendab, ning sertifitseerimiskeskuse rollis on sertifikaadi looja; iga juursertifikaat on endasigneeritud

ISO/IEC 20648:
digital certificate that is signed by the same entity whose identity it certifies
Note. A self-signed certificate is one signed with its own private key.

ülevaateid
https://en.wikipedia.org/wiki/Self-signed_certificate

https://www.keyfactor.com/blog/self-signed-certificate-risks/

https://sectigo.com/resource-library/what-is-a-self-signed-certificate