Merge pull request #512 from fundon/feature_support_dsa_key

support dsa key format

models/publickey.go

@@ -101,6 +101,7 @@ var (
 		"(MCE)":     1702,
 		"(McE)":     1702,
 		"(RSA)":     2048,
+		"(DSA)":     1024,
 	}
 )