diff --git a/IDZSwiftCommonCrypto.xcodeproj/project.pbxproj b/IDZSwiftCommonCrypto.xcodeproj/project.pbxproj
index b8d8579..ad7a5a7 100644
--- a/IDZSwiftCommonCrypto.xcodeproj/project.pbxproj
+++ b/IDZSwiftCommonCrypto.xcodeproj/project.pbxproj
@@ -535,11 +535,11 @@
 				TargetAttributes = {
 					0CCB89AA19CE05F800068ED6 = {
 						CreatedOnToolsVersion = 6.0.1;
-						LastSwiftMigration = 0900;
+						LastSwiftMigration = 1020;
 					};
 					0CCB89B519CE05F800068ED6 = {
 						CreatedOnToolsVersion = 6.0.1;
-						LastSwiftMigration = 0900;
+						LastSwiftMigration = 1020;
 					};
 					308499A61BA77BC20025B41D = {
 						CreatedOnToolsVersion = 7.0;
@@ -577,6 +577,7 @@
 			developmentRegion = English;
 			hasScannedForEncodings = 0;
 			knownRegions = (
+				English,
 				en,
 				Base,
 			);
@@ -992,7 +993,7 @@
 				PRODUCT_NAME = IDZSwiftCommonCrypto;
 				SKIP_INSTALL = YES;
 				SWIFT_INCLUDE_PATHS = "${SRCROOT}";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				SYMROOT = build;
 			};
 			name = Debug;
@@ -1013,7 +1014,7 @@
 				PRODUCT_NAME = IDZSwiftCommonCrypto;
 				SKIP_INSTALL = YES;
 				SWIFT_INCLUDE_PATHS = "${SRCROOT}";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				SYMROOT = build;
 			};
 			name = Release;
@@ -1033,7 +1034,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_INCLUDE_PATHS = "${SRCROOT}/CommonCrypto";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -1047,7 +1048,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.iosdeveloperzone.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_INCLUDE_PATHS = "${SRCROOT}/CommonCrypto";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};
@@ -1064,7 +1065,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.iosdeveloperzone.IDZSwiftCommonCryptoTestApp;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -1081,7 +1082,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.iosdeveloperzone.IDZSwiftCommonCryptoTestApp;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};
@@ -1097,7 +1098,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.iosdeveloperzone.IDZSwiftCommonCryptoTestAppTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/IDZSwiftCommonCryptoTestApp.app/IDZSwiftCommonCryptoTestApp";
 			};
 			name = Debug;
@@ -1114,7 +1115,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = com.iosdeveloperzone.IDZSwiftCommonCryptoTestAppTests;
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/IDZSwiftCommonCryptoTestApp.app/IDZSwiftCommonCryptoTestApp";
 			};
 			name = Release;
@@ -1140,7 +1141,7 @@
 				PRODUCT_NAME = IDZSwiftCommonCrypto;
 				SDKROOT = macosx;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -1166,7 +1167,7 @@
 				PRODUCT_NAME = IDZSwiftCommonCrypto;
 				SDKROOT = macosx;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};
@@ -1183,7 +1184,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.iosdeveloperzone.IDZSwiftCommonCrypto--OSX-Tests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Debug;
 		};
@@ -1201,7 +1202,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.iosdeveloperzone.IDZSwiftCommonCrypto--OSX-Tests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 			};
 			name = Release;
 		};
@@ -1223,7 +1224,7 @@
 				PRODUCT_NAME = IDZSwiftCommonCrypto;
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.1;
 			};
@@ -1248,7 +1249,7 @@
 				PRODUCT_NAME = IDZSwiftCommonCrypto;
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.1;
 			};
@@ -1264,7 +1265,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.iosdeveloperzone.IDZSwiftCommonCrypto--tvOS-Tests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = appletvos;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TVOS_DEPLOYMENT_TARGET = 9.1;
 			};
 			name = Debug;
@@ -1280,7 +1281,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "com.iosdeveloperzone.IDZSwiftCommonCrypto--tvOS-Tests";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = appletvos;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TVOS_DEPLOYMENT_TARGET = 9.1;
 			};
 			name = Release;
@@ -1304,7 +1305,7 @@
 				PRODUCT_NAME = IDZSwiftCommonCrypto;
 				SDKROOT = watchos;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 4;
 				WATCHOS_DEPLOYMENT_TARGET = 5.1;
 			};
@@ -1330,7 +1331,7 @@
 				PRODUCT_NAME = IDZSwiftCommonCrypto;
 				SDKROOT = watchos;
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 4.2;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = 4;
 				WATCHOS_DEPLOYMENT_TARGET = 5.1;
 			};