1 files changed, 16 insertions, 0 deletions
diff --git a/cast/common/certificate/cast_trust_store.cc b/cast/common/certificate/cast_trust_store.cc
index 93db49ba..d8ec513c 100644
--- a/cast/common/certificate/cast_trust_store.cc
+++ b/cast/common/certificate/cast_trust_store.cc
@@ -4,6 +4,9 @@
 
 #include "cast/common/certificate/cast_trust_store.h"
 
+#include <utility>
+
+#include "util/crypto/pem_helpers.h"
 #include "util/osp_logging.h"
 
 namespace openscreen {
@@ -48,6 +51,16 @@ CastTrustStore* CastTrustStore::CreateInstanceForTest(
   return store_;
 }
 
+// static
+CastTrustStore* CastTrustStore::CreateInstanceFromPemFile(
+    absl::string_view file_path,
+    TrustStore::Mode mode) {
+  OSP_DCHECK(!store_);
+  store_ = new CastTrustStore();
+  store_->trust_store_ = TrustStore::CreateInstanceFromPemFile(file_path, mode);
+  return store_;
+}
+
 CastTrustStore::CastTrustStore() {
   trust_store_.certs.emplace_back(MakeTrustAnchor(kCastRootCaDer));
   trust_store_.certs.emplace_back(MakeTrustAnchor(kEurekaRootCaDer));
@@ -57,6 +70,9 @@ CastTrustStore::CastTrustStore(const std::vector<uint8_t>& trust_anchor_der) {
   trust_store_.certs.emplace_back(MakeTrustAnchor(trust_anchor_der));
 }
 
+CastTrustStore::CastTrustStore(TrustStore trust_store)
+    : trust_store_(std::move(trust_store)) {}
+
 CastTrustStore::~CastTrustStore() = default;
 
 // static