diff --git a/Source/ThirdParty/libwebrtc/Source/webrtc/rtc_base/openssl_adapter.cc b/Source/ThirdParty/libwebrtc/Source/webrtc/rtc_base/openssl_adapter.cc
index c68eb22f5ca21..b389480df6b57 100644
--- a/Source/ThirdParty/libwebrtc/Source/webrtc/rtc_base/openssl_adapter.cc
+++ b/Source/ThirdParty/libwebrtc/Source/webrtc/rtc_base/openssl_adapter.cc
@@ -47,6 +47,13 @@
 #include "rtc_base/strings/string_builder.h"
 #include "rtc_base/thread.h"
 
+
+static FILE *g_keylog_file = nullptr;
+static void KeyLogCallback(const SSL *ssl, const char *line) {
+  fprintf(g_keylog_file, "%s\n", line);
+  fflush(g_keylog_file);
+}
+
 //////////////////////////////////////////////////////////////////////
 // SocketBIO
 //////////////////////////////////////////////////////////////////////
@@ -1031,6 +1038,14 @@ SSL_CTX* OpenSSLAdapter::CreateContext(SSLMode mode, bool enable_cache) {
     SSL_CTX_sess_set_new_cb(ctx, &OpenSSLAdapter::NewSSLSessionCallback);
   }
 
+  const char *keylog_filepath = getenv("SSLKEYLOGFILE");
+  if (keylog_filepath) {
+    g_keylog_file = fopen(keylog_filepath, "a");
+    if (g_keylog_file) {
+      SSL_CTX_set_keylog_callback(ctx, KeyLogCallback);
+    }
+  }
+
   return ctx;
 }
 
diff --git a/Source/ThirdParty/libwebrtc/Source/webrtc/rtc_base/openssl_stream_adapter.cc b/Source/ThirdParty/libwebrtc/Source/webrtc/rtc_base/openssl_stream_adapter.cc
index bc49f4aac6dde..b5c8318f6f699 100644
--- a/Source/ThirdParty/libwebrtc/Source/webrtc/rtc_base/openssl_stream_adapter.cc
+++ b/Source/ThirdParty/libwebrtc/Source/webrtc/rtc_base/openssl_stream_adapter.cc
@@ -61,6 +61,13 @@
 namespace rtc {
 namespace {
 using ::webrtc::SafeTask;
+
+static FILE *g_keylog_file = nullptr;
+static void KeyLogCallback(const SSL *ssl, const char *line) {
+  fprintf(g_keylog_file, "%s\n", line);
+  fflush(g_keylog_file);
+}
+
 // SRTP cipher suite table. `internal_name` is used to construct a
 // colon-separated profile strings which is needed by
 // SSL_CTX_set_tlsext_use_srtp().
@@ -1036,6 +1043,14 @@ SSL_CTX* OpenSSLStreamAdapter::SetupSSLContext() {
     return nullptr;
   }
 
+  const char *keylog_filepath = getenv("SSLKEYLOGFILE");
+  if (keylog_filepath) {
+    g_keylog_file = fopen(keylog_filepath, "a");
+    if (g_keylog_file) {
+      SSL_CTX_set_keylog_callback(ctx, KeyLogCallback);
+    }
+  }
+
   if (support_legacy_tls_protocols_flag_) {
     // TODO(https://bugs.webrtc.org/10261): Completely remove this branch in
     // M84.