diff --git a/certificate/certificate.go b/certificate/certificate.go
index 10c0df8f1..56d81efc1 100644
--- a/certificate/certificate.go
+++ b/certificate/certificate.go
@@ -169,6 +169,10 @@ var SignatureAlgorithm = [...]string{
 	"ECDSAWithSHA256",
 	"ECDSAWithSHA384",
 	"ECDSAWithSHA512",
+	"SHA256WithRSAPSS",
+	"SHA384WithRSAPSS",
+	"SHA512WithRSAPSS",
+	"PureEd25519",
 }
 
 var ExtKeyUsage = [...]string{