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-rw-r--r--identity/interface.go3
1 files changed, 3 insertions, 0 deletions
diff --git a/identity/interface.go b/identity/interface.go
index 92a03c51..528cb067 100644
--- a/identity/interface.go
+++ b/identity/interface.go
@@ -36,6 +36,9 @@ type Interface interface {
// Can be empty.
Keys() []*Key
+ // SigningKey return the key that should be used to sign new messages. If no key is available, return nil.
+ SigningKey() *Key
+
// ValidKeysAtTime return the set of keys valid at a given lamport time for a given clock of another entity
// Can be empty.
ValidKeysAtTime(clockName string, time lamport.Time) []*Key