]> git.saurik.com Git - apple/security.git/blobdiff - SecurityTool/sharedTool/spc.c
Security-59306.11.20.tar.gz
[apple/security.git] / SecurityTool / sharedTool / spc.c
diff --git a/SecurityTool/sharedTool/spc.c b/SecurityTool/sharedTool/spc.c
new file mode 100644 (file)
index 0000000..70d1839
--- /dev/null
@@ -0,0 +1,717 @@
+/*
+ * Copyright (c) 2009-2010,2013-2014 Apple Inc. All Rights Reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+/*
+ *  spc.c - Security
+ *
+ *
+ */
+
+#include <TargetConditionals.h>
+#if TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR
+
+#include "SecurityCommands.h"
+
+#include <CoreFoundation/CoreFoundation.h>
+#include <AssertMacros.h>
+#include <TargetConditionals.h>
+#include <CFNetwork/CFNetwork.h>
+
+extern const CFStringRef kCFStreamPropertySSLPeerTrust;
+#include <Security/SecTrust.h>
+#include <Security/SecCertificate.h>
+#include <Security/SecCertificatePriv.h>
+#include <Security/SecImportExport.h>
+#include <Security/SecPolicy.h>
+#include <Security/SecIdentity.h>
+#include <Security/SecIdentityPriv.h>
+#include <Security/SecRSAKey.h>
+#include <Security/SecSCEP.h>
+#include <Security/SecCMS.h>
+#include <Security/SecItem.h>
+#include <Security/SecInternal.h>
+#include <utilities/array_size.h>
+#include <err.h>
+#include <stdio.h>
+#include <getopt.h>
+
+//static char *scep_url = "https://localhost:2000/cgi-bin/pkiclient.exe";
+static char *user = "webuser";
+static char *pass = "webpassowrd";
+static int debug = 0;
+
+#define BUFSIZE 1024
+
+unsigned char device_cert_der[] = {
+  0x30, 0x82, 0x02, 0xdf, 0x30, 0x82, 0x02, 0x48, 0xa0, 0x03, 0x02, 0x01,
+  0x02, 0x02, 0x0a, 0x01, 0x5c, 0x0a, 0x2f, 0xfd, 0x20, 0x02, 0x00, 0xe6,
+  0x27, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01,
+  0x01, 0x0b, 0x05, 0x00, 0x30, 0x5a, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03,
+  0x55, 0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11, 0x06,
+  0x03, 0x55, 0x04, 0x0a, 0x13, 0x0a, 0x41, 0x70, 0x70, 0x6c, 0x65, 0x20,
+  0x49, 0x6e, 0x63, 0x2e, 0x31, 0x15, 0x30, 0x13, 0x06, 0x03, 0x55, 0x04,
+  0x0b, 0x13, 0x0c, 0x41, 0x70, 0x70, 0x6c, 0x65, 0x20, 0x69, 0x50, 0x68,
+  0x6f, 0x6e, 0x65, 0x31, 0x1f, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x04, 0x03,
+  0x13, 0x16, 0x41, 0x70, 0x70, 0x6c, 0x65, 0x20, 0x69, 0x50, 0x68, 0x6f,
+  0x6e, 0x65, 0x20, 0x44, 0x65, 0x76, 0x69, 0x63, 0x65, 0x20, 0x43, 0x41,
+  0x30, 0x1e, 0x17, 0x0d, 0x30, 0x38, 0x31, 0x32, 0x31, 0x32, 0x32, 0x33,
+  0x30, 0x33, 0x35, 0x36, 0x5a, 0x17, 0x0d, 0x31, 0x31, 0x31, 0x32, 0x31,
+  0x32, 0x32, 0x33, 0x30, 0x33, 0x35, 0x36, 0x5a, 0x30, 0x81, 0x87, 0x31,
+  0x31, 0x30, 0x2f, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x28, 0x66, 0x31,
+  0x66, 0x35, 0x30, 0x66, 0x38, 0x31, 0x32, 0x32, 0x66, 0x62, 0x31, 0x30,
+  0x31, 0x34, 0x36, 0x66, 0x36, 0x35, 0x65, 0x39, 0x30, 0x33, 0x38, 0x30,
+  0x31, 0x37, 0x36, 0x33, 0x34, 0x32, 0x61, 0x64, 0x64, 0x36, 0x61, 0x38,
+  0x35, 0x63, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13,
+  0x02, 0x55, 0x53, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x08,
+  0x13, 0x02, 0x43, 0x41, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04,
+  0x07, 0x13, 0x09, 0x43, 0x75, 0x70, 0x65, 0x72, 0x74, 0x69, 0x6e, 0x6f,
+  0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x0a, 0x41,
+  0x70, 0x70, 0x6c, 0x65, 0x20, 0x49, 0x6e, 0x63, 0x2e, 0x31, 0x0f, 0x30,
+  0x0d, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x13, 0x06, 0x69, 0x50, 0x68, 0x6f,
+  0x6e, 0x65, 0x30, 0x81, 0x9f, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48,
+  0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x81, 0x8d, 0x00,
+  0x30, 0x81, 0x89, 0x02, 0x81, 0x81, 0x00, 0xba, 0xc5, 0x2a, 0x7b, 0xb3,
+  0x29, 0x21, 0x8d, 0xbd, 0x01, 0x12, 0xff, 0x0b, 0xf6, 0x14, 0x66, 0x15,
+  0x7b, 0x99, 0xf8, 0x1e, 0x08, 0x46, 0x40, 0xd7, 0x48, 0x57, 0xf0, 0x9c,
+  0x08, 0xac, 0xbc, 0x93, 0xc3, 0xd8, 0x81, 0xd8, 0x52, 0xd7, 0x9e, 0x9b,
+  0x3e, 0x65, 0xef, 0x98, 0x8d, 0x93, 0x2e, 0x79, 0x58, 0x22, 0x98, 0xe2,
+  0xd9, 0x2f, 0x84, 0x6d, 0xf0, 0x50, 0xc6, 0xba, 0x52, 0x28, 0x29, 0xf1,
+  0x83, 0x4c, 0xad, 0xdd, 0x5a, 0x7a, 0xab, 0xd2, 0x74, 0xb2, 0x1d, 0xc1,
+  0xa9, 0xe4, 0x87, 0xbd, 0xa0, 0x94, 0x0e, 0x50, 0xa7, 0xc7, 0xf1, 0x0d,
+  0xda, 0x0c, 0x36, 0x94, 0xf4, 0x2c, 0xb8, 0x76, 0xc7, 0x7b, 0x32, 0x87,
+  0x23, 0x70, 0x9f, 0x3f, 0x19, 0xeb, 0xc3, 0xb5, 0x3a, 0x6e, 0xec, 0xa7,
+  0x9c, 0xb4, 0xdb, 0xe7, 0x6e, 0x6d, 0x5e, 0x3c, 0x14, 0xa1, 0xa6, 0xfb,
+  0x50, 0xfb, 0x17, 0x02, 0x03, 0x01, 0x00, 0x01, 0xa3, 0x7e, 0x30, 0x7c,
+  0x30, 0x1b, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x14, 0xb2, 0xfe, 0x21,
+  0x23, 0x44, 0x86, 0x95, 0x6a, 0x79, 0xd5, 0x81, 0x26, 0x8e, 0x73, 0x10,
+  0xd8, 0xa7, 0x4c, 0x8e, 0x74, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e,
+  0x04, 0x16, 0x04, 0x14, 0x33, 0x2f, 0xbd, 0x38, 0x86, 0xbc, 0xb0, 0xb2,
+  0x6a, 0xd3, 0x86, 0xca, 0x92, 0x7c, 0x0a, 0x6d, 0x55, 0xab, 0x34, 0x81,
+  0x30, 0x0c, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01, 0x01, 0xff, 0x04, 0x02,
+  0x30, 0x00, 0x30, 0x0e, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x01, 0x01, 0xff,
+  0x04, 0x04, 0x03, 0x02, 0x05, 0xa0, 0x30, 0x20, 0x06, 0x03, 0x55, 0x1d,
+  0x25, 0x01, 0x01, 0xff, 0x04, 0x16, 0x30, 0x14, 0x06, 0x08, 0x2b, 0x06,
+  0x01, 0x05, 0x05, 0x07, 0x03, 0x01, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05,
+  0x05, 0x07, 0x03, 0x02, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
+  0xf7, 0x0d, 0x01, 0x01, 0x0b, 0x05, 0x00, 0x03, 0x81, 0x81, 0x00, 0xe2,
+  0x0c, 0x37, 0x3e, 0x5f, 0x96, 0x10, 0x0d, 0xea, 0xa5, 0x15, 0x8f, 0xa2,
+  0x5b, 0x01, 0xe0, 0x1f, 0x15, 0x11, 0x42, 0x4b, 0x9e, 0x4b, 0x93, 0x90,
+  0x56, 0x4f, 0x4f, 0xbb, 0xc7, 0x32, 0x74, 0xfc, 0xbd, 0x1c, 0xcc, 0x06,
+  0x9f, 0xbb, 0x0b, 0x11, 0xa4, 0x8b, 0xa0, 0x52, 0x59, 0x94, 0xef, 0x87,
+  0x0c, 0xb1, 0xa8, 0xe0, 0x85, 0x96, 0xe1, 0x1b, 0x8b, 0x56, 0x12, 0x4d,
+  0x94, 0xd6, 0xa5, 0x52, 0x7f, 0x65, 0xf3, 0x21, 0x1f, 0xaa, 0x07, 0x8c,
+  0xaf, 0x69, 0xfa, 0x47, 0xbe, 0x3b, 0x74, 0x1a, 0x7c, 0xa6, 0x25, 0x63,
+  0x18, 0x5f, 0x0d, 0xda, 0xc4, 0x58, 0x01, 0xbc, 0xf2, 0x6d, 0x2d, 0xc1,
+  0x68, 0x3e, 0xa1, 0x2c, 0x59, 0x03, 0x3e, 0xa3, 0x13, 0x1b, 0xd9, 0x42,
+  0x28, 0x1e, 0x6c, 0x7f, 0x7f, 0x9d, 0x29, 0xf6, 0x43, 0x84, 0xe7, 0x60,
+  0xe3, 0x6f, 0x6a, 0x8a, 0x9f, 0x1d, 0x70
+};
+unsigned int device_cert_der_len = 739;
+
+unsigned char device_key[] = {
+  0x30, 0x82, 0x02, 0x5c, 0x02, 0x01, 0x00, 0x02, 0x81, 0x81, 0x00, 0xba,
+  0xc5, 0x2a, 0x7b, 0xb3, 0x29, 0x21, 0x8d, 0xbd, 0x01, 0x12, 0xff, 0x0b,
+  0xf6, 0x14, 0x66, 0x15, 0x7b, 0x99, 0xf8, 0x1e, 0x08, 0x46, 0x40, 0xd7,
+  0x48, 0x57, 0xf0, 0x9c, 0x08, 0xac, 0xbc, 0x93, 0xc3, 0xd8, 0x81, 0xd8,
+  0x52, 0xd7, 0x9e, 0x9b, 0x3e, 0x65, 0xef, 0x98, 0x8d, 0x93, 0x2e, 0x79,
+  0x58, 0x22, 0x98, 0xe2, 0xd9, 0x2f, 0x84, 0x6d, 0xf0, 0x50, 0xc6, 0xba,
+  0x52, 0x28, 0x29, 0xf1, 0x83, 0x4c, 0xad, 0xdd, 0x5a, 0x7a, 0xab, 0xd2,
+  0x74, 0xb2, 0x1d, 0xc1, 0xa9, 0xe4, 0x87, 0xbd, 0xa0, 0x94, 0x0e, 0x50,
+  0xa7, 0xc7, 0xf1, 0x0d, 0xda, 0x0c, 0x36, 0x94, 0xf4, 0x2c, 0xb8, 0x76,
+  0xc7, 0x7b, 0x32, 0x87, 0x23, 0x70, 0x9f, 0x3f, 0x19, 0xeb, 0xc3, 0xb5,
+  0x3a, 0x6e, 0xec, 0xa7, 0x9c, 0xb4, 0xdb, 0xe7, 0x6e, 0x6d, 0x5e, 0x3c,
+  0x14, 0xa1, 0xa6, 0xfb, 0x50, 0xfb, 0x17, 0x02, 0x03, 0x01, 0x00, 0x01,
+  0x02, 0x81, 0x80, 0x47, 0x9e, 0x91, 0xc2, 0xeb, 0x99, 0xeb, 0x26, 0xfa,
+  0x02, 0x2e, 0x71, 0xa4, 0xf9, 0x91, 0x2a, 0xf0, 0x33, 0xfc, 0x7f, 0xdb,
+  0xac, 0x5a, 0x9c, 0x44, 0xb1, 0x96, 0x1f, 0x4b, 0x06, 0x3c, 0x8e, 0xf7,
+  0xae, 0xd3, 0x18, 0x3f, 0x86, 0xcc, 0xee, 0x22, 0x23, 0xd4, 0x5d, 0x03,
+  0x47, 0xce, 0xd7, 0xb4, 0x6a, 0x6a, 0xa1, 0xeb, 0xe3, 0x52, 0xc8, 0x5a,
+  0x8c, 0x1b, 0xbd, 0x88, 0xf7, 0x36, 0x34, 0xd2, 0xfe, 0x6b, 0x75, 0x9c,
+  0xa4, 0x97, 0x2f, 0xeb, 0xa8, 0xec, 0x48, 0xb7, 0xe7, 0x53, 0x8f, 0xf1,
+  0x39, 0xca, 0xf8, 0xd2, 0xee, 0x34, 0xdc, 0x10, 0x99, 0x6f, 0xfd, 0x83,
+  0x21, 0xa9, 0xe0, 0xe9, 0x0c, 0x4e, 0x4e, 0x62, 0x5f, 0x9f, 0x0f, 0x05,
+  0xcd, 0xf4, 0x2b, 0x08, 0x06, 0x93, 0x55, 0x76, 0xaf, 0x63, 0x77, 0x80,
+  0x3e, 0xd5, 0xf2, 0xe0, 0x58, 0x7f, 0x3c, 0x41, 0x88, 0x4b, 0xc1, 0x02,
+  0x41, 0x01, 0x84, 0xfc, 0xa9, 0x26, 0x74, 0xe7, 0x4e, 0xe4, 0x39, 0xc4,
+  0x8f, 0x81, 0xe8, 0xc0, 0xd3, 0x6e, 0x01, 0x12, 0x7e, 0x12, 0x2d, 0x61,
+  0xaf, 0xe8, 0x60, 0x65, 0x8b, 0x50, 0x46, 0xdf, 0x02, 0x42, 0xe1, 0xea,
+  0xc1, 0x57, 0x9a, 0x2d, 0x90, 0xdc, 0x10, 0xf1, 0x79, 0xf0, 0xb5, 0x5c,
+  0x89, 0xef, 0x3b, 0xa8, 0x7a, 0x88, 0x3d, 0x54, 0xde, 0x35, 0x9c, 0xc3,
+  0x38, 0x4f, 0x2e, 0xb0, 0x74, 0xf7, 0x02, 0x40, 0x7a, 0xea, 0xc9, 0xfe,
+  0x48, 0xeb, 0x94, 0x20, 0x50, 0x33, 0x9d, 0x4f, 0x6f, 0x7f, 0xb1, 0x0e,
+  0xee, 0x42, 0x1c, 0xae, 0x72, 0x06, 0xb9, 0x9c, 0x80, 0x4a, 0xed, 0x07,
+  0xf8, 0x76, 0x5b, 0x37, 0x81, 0x45, 0x69, 0x09, 0xa5, 0x0d, 0x92, 0xed,
+  0xa8, 0xf0, 0x05, 0x6d, 0xb3, 0xa4, 0xef, 0xfb, 0x1b, 0xf0, 0x89, 0xea,
+  0x80, 0x2d, 0xaf, 0x9d, 0xbe, 0xc0, 0x08, 0x44, 0x58, 0x61, 0xc2, 0xe1,
+  0x02, 0x41, 0x01, 0x31, 0xaf, 0x14, 0x86, 0x82, 0x2c, 0x1c, 0x55, 0x42,
+  0x08, 0x73, 0xf6, 0x55, 0x20, 0xe3, 0x86, 0x79, 0x15, 0x3d, 0x39, 0xaf,
+  0xac, 0x2a, 0xfe, 0xe4, 0x72, 0x28, 0x2e, 0xe7, 0xe2, 0xec, 0xf5, 0xfe,
+  0x6f, 0xeb, 0x8c, 0x9a, 0x3e, 0xe0, 0xad, 0xf0, 0x2a, 0xb3, 0xf7, 0x33,
+  0xaf, 0x0b, 0x3e, 0x93, 0x95, 0x6c, 0xe5, 0x8f, 0xbd, 0x17, 0xfa, 0xed,
+  0xbc, 0x84, 0x8d, 0xc5, 0x55, 0x2a, 0x35, 0x02, 0x40, 0x6b, 0x4e, 0x1f,
+  0x4b, 0x03, 0x63, 0xcd, 0xab, 0xab, 0xf8, 0x73, 0x43, 0x8e, 0xa6, 0x1d,
+  0xef, 0x57, 0xe6, 0x95, 0x5d, 0x61, 0x24, 0x27, 0xd3, 0xcd, 0x58, 0x1b,
+  0xb7, 0x92, 0x9b, 0xd8, 0xa4, 0x0b, 0x11, 0x8a, 0x52, 0x26, 0x2a, 0x44,
+  0x73, 0x7f, 0xc1, 0x12, 0x2c, 0x23, 0xe1, 0x40, 0xb3, 0xaa, 0x3f, 0x82,
+  0x57, 0x1a, 0xd1, 0x47, 0x77, 0xe1, 0xb7, 0x89, 0x40, 0x09, 0x1c, 0x47,
+  0x61, 0x02, 0x41, 0x00, 0xa4, 0x47, 0x7d, 0x98, 0x74, 0x25, 0x95, 0x5a,
+  0xc9, 0xbe, 0x76, 0x66, 0xf8, 0x24, 0xb0, 0x83, 0x49, 0xd2, 0xce, 0x98,
+  0x75, 0x7c, 0xbb, 0xd9, 0x24, 0xe9, 0xc5, 0x53, 0xea, 0xd8, 0xec, 0x94,
+  0x79, 0xbb, 0x4e, 0x96, 0xc6, 0xd6, 0x17, 0x26, 0x77, 0xf3, 0x12, 0x3e,
+  0x15, 0x8e, 0x0c, 0x86, 0xdf, 0xa9, 0xf1, 0x34, 0x9b, 0x49, 0x28, 0x0a,
+  0x95, 0xb5, 0x29, 0x8f, 0x8a, 0x21, 0xff, 0xfc
+};
+unsigned int device_key_len = 608;
+
+
+static inline CFTypeRef valid_cf_obj(CFTypeRef obj, CFTypeID type)
+{
+    if (obj && CFGetTypeID(obj) == type)
+        return obj;
+    return NULL;
+}
+
+static inline CFTypeRef dict_get_value_of_type(CFDictionaryRef dict, CFTypeRef key, CFTypeID value_type)
+{
+    CFTypeRef value = CFDictionaryGetValue(dict, key);
+    return valid_cf_obj(value, value_type);
+}
+
+#include <fcntl.h>
+static inline void write_data(const char * path, CFDataRef data)
+{
+    int data_file = open(path, O_CREAT|O_WRONLY|O_TRUNC, 0644);
+    write(data_file, CFDataGetBytePtr(data), CFDataGetLength(data));
+    close(data_file);
+    printf("wrote intermediate result to: %s\n", path);
+}
+
+static void _query_string_apply(const void *key, const void *value, void *context)
+{
+    CFStringRef escaped_key = 
+        CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, 
+            (CFStringRef)key, NULL, NULL, kCFStringEncodingUTF8);
+    CFStringRef escaped_value = 
+        CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, 
+            (CFStringRef)value, NULL, NULL, kCFStringEncodingUTF8);
+    CFMutableStringRef query_string = (CFMutableStringRef)context;
+    
+    if (CFStringGetLength(query_string) > 1)
+        CFStringAppend(query_string, CFSTR("&"));
+
+    CFStringAppendFormat(query_string, NULL, CFSTR("%@=%@"), escaped_key, escaped_value);
+    CFRelease(escaped_key);
+    CFRelease(escaped_value);
+}
+
+static CF_RETURNS_RETAINED CFURLRef build_url(CFStringRef base, CFDictionaryRef info)
+{
+    CFURLRef url = NULL, base_url = NULL;
+    CFMutableStringRef query_string = 
+        CFStringCreateMutableCopy(kCFAllocatorDefault, 0, CFSTR("?"));
+    require(query_string, out);
+    if (info)
+        CFDictionaryApplyFunction(info, _query_string_apply, query_string);
+    base_url = CFURLCreateWithString(kCFAllocatorDefault, base, NULL);
+    url = CFURLCreateWithString(kCFAllocatorDefault, query_string, base_url);
+out:
+    CFReleaseSafe(query_string);
+    CFReleaseSafe(base_url);
+    return url;
+}
+
+static CF_RETURNS_RETAINED CFURLRef scep_url_operation(CFStringRef base, CFStringRef operation, CFStringRef message)
+{
+    CFURLRef url = NULL;
+    const void *keys[] = { CFSTR("operation"), CFSTR("message") };
+    const void *values[] = { operation, message };
+    
+    require(operation, out);
+    CFDictionaryRef dict = CFDictionaryCreate(NULL, keys, values, message ? 2 : 1, NULL, NULL);
+    url = build_url(base, dict);
+    CFRelease(dict);
+out:
+    return url;
+}
+
+static bool auth_failed(CFHTTPMessageRef request, CFReadStreamRef readStream)
+{
+    bool isAuthenticationChallenge = false;
+    CFHTTPMessageRef responseHeaders = (CFHTTPMessageRef)CFReadStreamCopyProperty(readStream, kCFStreamPropertyHTTPResponseHeader);
+    if (responseHeaders) {
+        // Is the server response an challenge for credentials?
+        isAuthenticationChallenge = (CFHTTPMessageGetResponseStatusCode(responseHeaders) == 401);
+        if (isAuthenticationChallenge) {
+            CFStringRef cf_user = CFStringCreateWithCString(kCFAllocatorDefault, user, kCFStringEncodingUTF8);
+            CFStringRef cf_pass = CFStringCreateWithCString(kCFAllocatorDefault, pass, kCFStringEncodingUTF8);
+            CFHTTPMessageAddAuthentication(request, responseHeaders, cf_user, cf_pass, NULL, false);
+            CFReleaseSafe(cf_pass);
+            CFReleaseSafe(cf_user);
+        }
+        CFRelease(responseHeaders);
+    }
+    return isAuthenticationChallenge;
+}
+
+static CF_RETURNS_RETAINED CFHTTPMessageRef load_request(CFHTTPMessageRef request, CFMutableDataRef data, int retry)
+{
+    CFHTTPMessageRef result = NULL;
+    
+    if (retry < 0)
+        return result;
+
+    CFReadStreamRef rs;
+    rs = CFReadStreamCreateForHTTPRequest(NULL, request);
+
+    const void *keys[] = { 
+        kCFStreamSSLValidatesCertificateChain, 
+//        kCFStreamSSLCertificates,
+    };
+    //CFArrayRef ident = mit_identity();
+    const void *values[] = {
+        kCFBooleanFalse, 
+//        ident,
+    };
+
+    CFDictionaryRef dict = CFDictionaryCreate(NULL, keys, values,
+        array_size(keys),
+        &kCFTypeDictionaryKeyCallBacks,
+        &kCFTypeDictionaryValueCallBacks);
+    CFReadStreamSetProperty(rs, kCFStreamPropertySSLSettings, dict);
+    CFRelease(dict);
+    CFReadStreamSetProperty(rs, kCFStreamPropertyHTTPAttemptPersistentConnection, kCFBooleanTrue);
+    
+    if (CFReadStreamOpen(rs)) {
+        do {
+            if (auth_failed(request, rs)) {
+                CFReadStreamClose(rs);
+                CFDataSetLength(data, 0);
+                if (retry) {
+                    CFReleaseSafe(rs);
+                    return load_request(request, data, retry - 1);
+                }
+                break;
+            }
+            UInt8 buf[BUFSIZE];
+            CFIndex bytesRead = CFReadStreamRead(rs, buf, BUFSIZE);
+            if (bytesRead > 0) {
+                CFDataAppendBytes(data, buf, bytesRead);
+            } else if (bytesRead == 0) {
+                // Success
+                result = (CFHTTPMessageRef)CFReadStreamCopyProperty(rs, kCFStreamPropertyHTTPResponseHeader);
+                break;
+            } else {
+                // Error
+                break;
+            }
+        } while (true);
+    } else {
+        // Error
+    }
+
+    CFReadStreamClose(rs);
+    CFRelease(rs);
+    if (debug)
+        CFShow(result);
+    return result;
+}
+
+
+static CF_RETURNS_RETAINED CFDictionaryRef get_encrypted_profile_packet(CFStringRef base_url)
+{
+#if 1
+    SecCertificateRef cert = SecCertificateCreateWithBytes(NULL, 
+        device_cert_der, device_cert_der_len);
+    SecKeyRef key = SecKeyCreateRSAPrivateKey(NULL, 
+        device_key, device_key_len, kSecKeyEncodingPkcs1);
+    SecIdentityRef identity = SecIdentityCreate(kCFAllocatorDefault, cert, key);
+    CFRelease(cert);
+    CFRelease(key);
+#else
+    SecIdentityRef identity = lockdown_copy_device_identity();
+#endif
+
+    CFMutableDictionaryRef machine_dict = CFDictionaryCreateMutable(kCFAllocatorDefault, 
+        0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+    CFDictionarySetValue(machine_dict, CFSTR("UDID"), CFSTR("f1f50f8122fb10146f65e90380176342add6a85c"));
+    CFStringRef cf_user = CFStringCreateWithCString(kCFAllocatorDefault, user, kCFStringEncodingUTF8);
+    if (cf_user) {
+        CFDictionarySetValue(machine_dict, CFSTR("USERNAME"), cf_user);
+        CFRelease(cf_user);
+    }
+    CFStringRef cf_pass = CFStringCreateWithCString(kCFAllocatorDefault, pass, kCFStringEncodingUTF8);
+    if (cf_pass) {
+        CFDictionarySetValue(machine_dict, CFSTR("PASSWORD"), cf_pass);
+        CFRelease(cf_pass);
+    }
+    CFDataRef machine_dict_data = CFPropertyListCreateXMLData(kCFAllocatorDefault, 
+        (CFPropertyListRef)machine_dict);
+    CFMutableDataRef signed_data = CFDataCreateMutable(kCFAllocatorDefault, 0);
+    if (SecCMSSignDataAndAttributes(identity, machine_dict_data, false, signed_data, NULL))
+        errx(1, "failed to sign data");
+    CFRelease(identity);
+    CFRelease(machine_dict_data);
+    CFRelease(machine_dict);
+
+    CFURLRef url = build_url(base_url, NULL);
+    CFHTTPMessageRef request = CFHTTPMessageCreateRequest(kCFAllocatorDefault,
+        CFSTR("POST"), url, kCFHTTPVersion1_1);
+    CFRelease(url);
+    CFHTTPMessageSetBody(request, signed_data);
+    CFRelease(signed_data);
+    CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Content-Type"), 
+        CFSTR("application/pkcs7-signature"));
+    CFMutableDataRef data = CFDataCreateMutable(kCFAllocatorDefault, 0);
+    CFHTTPMessageRef response = load_request(request, data, 1);
+    CFRelease(request);
+    CFRelease(response);
+    CFErrorRef error = NULL;
+    CFTypeRef result = CFPropertyListCreateWithData(kCFAllocatorDefault,
+        data, kCFPropertyListImmutable, NULL, &error);
+    CFRelease(data);
+    if (error) {
+        CFShow(error);
+        errx(1, "failed to decode encrypted profile response");
+    }
+    if (CFGetTypeID(result) != CFDictionaryGetTypeID())
+    CFReleaseNull(result);
+    return (CFDictionaryRef)result;
+}
+
+static SecCertificateRef get_ca_cert(CFStringRef scep_base_url, CFStringRef scep_ca_name)
+{
+    SecCertificateRef cert = NULL;
+    CFMutableDataRef data = CFDataCreateMutable(kCFAllocatorDefault, 0);
+
+    CFURLRef url = scep_url_operation(scep_base_url, CFSTR("GetCACert"), scep_ca_name);
+    CFHTTPMessageRef request = CFHTTPMessageCreateRequest(kCFAllocatorDefault, 
+        CFSTR("GET"), url, kCFHTTPVersion1_1);
+    CFReleaseSafe(url);
+    CFHTTPMessageRef result = load_request(request, data, 1);
+    CFReleaseSafe(request);
+
+    if (!result) {
+        CFReleaseSafe(data);
+        return NULL;
+    }
+    CFStringRef contentTypeValue = CFHTTPMessageCopyHeaderFieldValue(result, CFSTR("Content-Type"));
+    CFReleaseSafe(result);
+//    CFHTTPMessageRef response = CFHTTPMessageCreateEmpty(kCFAllocatorDefault, false);
+//    CFHTTPMessageAppendBytes(response, CFDataGetBytePtr(data), CFDataGetLength(data));
+//    CFDataRef bodyValue = CFHTTPMessageCopyBody(response);
+    if (kCFCompareEqualTo == CFStringCompare(CFSTR("application/x-x509-ca-cert"), 
+        contentTypeValue, kCFCompareCaseInsensitive)) {
+        // CA only response: application/x-x509-ca-cert
+        cert = SecCertificateCreateWithData(kCFAllocatorDefault, data);
+        if (debug)
+            write_data("/tmp/ca_cert.der", data);
+    } else if (kCFCompareEqualTo == CFStringCompare(CFSTR("application/x-x509-ca-ra-cert"), 
+        contentTypeValue, kCFCompareCaseInsensitive)) {
+        // RA/CA response: application/x-x509-ca-ra-cert
+        CFArrayRef cert_array = SecCMSCertificatesOnlyMessageCopyCertificates(data);
+        if (debug)
+            write_data("/tmp/ca_cert_array.der", data);
+        cert = (SecCertificateRef)CFArrayGetValueAtIndex(cert_array, 0);
+        CFRetain(cert);
+        CFRelease(cert_array);
+    }
+    CFRelease(contentTypeValue);
+    CFRelease(data);
+    return cert;
+}
+
+
+static SecIdentityRef perform_scep(CFDictionaryRef scep_dict)
+{
+    SecIdentityRef identity = NULL;
+    CFDictionaryRef parameters = NULL, csr_parameters = NULL;
+    CFStringRef scep_base_url = NULL, scep_instance_name = NULL,
+    scep_challenge = NULL;
+#if 0
+    CFStringRef scep_subject = NULL, scep_subject_requested = NULL;
+#endif
+    CFTypeRef scep_key_bitsize = NULL;
+    CFNumberRef key_usage_num = NULL;
+    SecCertificateRef ca_cert = NULL;
+    const void *keygen_keys[] = { kSecAttrKeyType, kSecAttrKeySizeInBits };
+    const void *keygen_vals[] = { kSecAttrKeyTypeRSA, CFSTR("512") };
+
+    require(valid_cf_obj(scep_dict,CFDictionaryGetTypeID()), out);
+    require(scep_base_url = 
+        dict_get_value_of_type(scep_dict, CFSTR("URL"), CFStringGetTypeID()), out);
+    require(scep_instance_name = 
+        dict_get_value_of_type(scep_dict, CFSTR("NAME"), CFStringGetTypeID()), out);
+    require(scep_challenge = 
+        dict_get_value_of_type(scep_dict, CFSTR("CHALLENGE"), CFStringGetTypeID()), out);
+
+    scep_key_bitsize =
+        dict_get_value_of_type(scep_dict, CFSTR("KEYSIZE"), CFNumberGetTypeID());
+    if (!scep_key_bitsize)
+        scep_key_bitsize =
+            dict_get_value_of_type(scep_dict, CFSTR("KEYSIZE"), CFStringGetTypeID());
+    if (scep_key_bitsize)
+        keygen_vals[1] = scep_key_bitsize;
+        
+    parameters = CFDictionaryCreate(kCFAllocatorDefault, 
+        keygen_keys, keygen_vals, array_size(keygen_vals),
+        &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks );
+
+    int key_usage = kSecKeyUsageDigitalSignature | kSecKeyUsageKeyEncipherment;
+    key_usage_num = CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &key_usage);
+
+    ca_cert = get_ca_cert(scep_base_url, scep_instance_name ? scep_instance_name : CFSTR("test"));
+    if (!ca_cert)
+        errx(1, "no ca cert returned from scep server.");
+
+    identity = NULL;
+    if (!identity)
+        errx(1, "failed to get identity from scep server.");
+    
+
+out:
+    CFReleaseSafe(ca_cert);
+    CFReleaseSafe(key_usage_num);
+    CFReleaseSafe(csr_parameters);
+    CFReleaseSafe(parameters);
+    return identity;
+}
+
+static CFDataRef copy_profile(CFStringRef url_cfstring, SecIdentityRef identity)
+{
+    CFURLRef url = NULL;
+    CFHTTPMessageRef request = NULL;
+    SecCertificateRef cert = NULL;
+    CFDataRef cert_data = NULL;
+    CFMutableDataRef data = CFDataCreateMutable(kCFAllocatorDefault, 0);
+    CFHTTPMessageRef response = NULL;
+    
+    require(url = CFURLCreateWithString(kCFAllocatorDefault, url_cfstring, NULL), out);
+    require(request = CFHTTPMessageCreateRequest(kCFAllocatorDefault, 
+        CFSTR("POST"), url, kCFHTTPVersion1_1), out);
+    require_noerr(SecIdentityCopyCertificate(identity, &cert), out);
+    require(cert_data = SecCertificateCopyData(cert), out);
+    CFHTTPMessageSetBody(request, cert_data);
+    // this is technically the wrong mimetype; we'll probably switch to signed data
+    CFHTTPMessageSetHeaderFieldValue(request, CFSTR("Content-Type"), CFSTR("application/x-x509-ca-cert"));
+    response = load_request(request, data, 1);
+    if (debug && data)
+        CFShow(data);
+out:
+    //CFReleaseSafe(response);
+    CFReleaseSafe(request);
+    CFReleaseSafe(url);
+    CFReleaseSafe(cert_data);
+    CFReleaseSafe(cert);
+    CFReleaseSafe(response);
+    return data;
+
+}
+
+static bool validate_profile(CFDataRef profile_plist_data, SecIdentityRef identity)
+{
+    CFStringRef type = NULL, uuid = NULL;
+    CFMutableDataRef dec_data = NULL;
+    CFDataRef enc_payload = NULL;
+    bool ok = false;
+    CFTypeRef result = CFPropertyListCreateWithData(kCFAllocatorDefault,
+        profile_plist_data, kCFPropertyListImmutable, NULL, NULL);
+    require(valid_cf_obj(result, CFDictionaryGetTypeID()), out);
+    require(type = dict_get_value_of_type(result, CFSTR("PayloadType"), 
+        CFStringGetTypeID()), out);
+    require(uuid = dict_get_value_of_type(result, CFSTR("PayloadUUID"), 
+        CFStringGetTypeID()), out);
+    enc_payload = dict_get_value_of_type(result, CFSTR("EncryptedPayloadContent"), 
+        CFDataGetTypeID());
+    if (enc_payload) {
+        dec_data = CFDataCreateMutable(kCFAllocatorDefault, 0);
+        require_noerr(SecCMSDecryptEnvelopedData(enc_payload, dec_data, NULL), out);
+        ok = validate_profile(dec_data, identity);
+    } else {
+        ok = true;
+        if (debug)
+            write_data("/tmp/unencrypted_profile.mobileconfig", profile_plist_data);
+        //CFDictionaryRef sub_conf = dict_get_value_of_type(result, CFSTR("PayloadContent"), CFDictionaryGetTypeID());
+    }
+out:
+    CFReleaseSafe(dec_data);
+    CFReleaseSafe(result);
+    return ok;
+}
+
+#if 0
+static const char *auth = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n\
+<!DOCTYPE plist PUBLIC \"-//Apple//DTD PLIST 1.0//EN\" \"http://www.apple.com/DTDs/\n\
+PropertyList-1.0.dtd\">\n\
+<plist version=\"1.0\">\n\
+<dict>\n\
+        <key>PayloadContent</key>\n\
+        <dict>\n\
+                <key>URL</key>\n\
+                <string>https://phone.vpn.apple.com/deviceid/</string>\n\
+                <key>DeviceAttributes</key>\n\
+                <array>\n\
+                        <string>UDID</string>\n\
+                        <string>VERSION</string>\n\
+                        <string>MAC_ADDRESS_EN0</string>\n\
+                        <string>MAC_ADDRESS_IP0</string>\n\
+                </array>\n\
+              <key>CHALLENGE</key>\n\
+              <string>${USER_COOKIE}</string>\n\
+        </dict>\n\
+        <key>PayloadType</key>\n\
+        <string>Device Identification</string>\n\
+</dict>\n\
+</plist>\n";
+
+static void annotate_machine_info(const void *value, void *context)
+{
+    CFDictionaryRef machine_dict = NULL;
+    CFStringRef machine_key = NULL;
+    require(machine_dict = (CFDictionaryRef)valid_cf_obj(context, 
+        CFDictionaryGetTypeID()), out);
+    require(machine_key = (CFStringRef)valid_cf_obj((CFTypeRef)value, 
+        CFStringGetTypeID()), out);
+    if (CFEqual(machine_key, CFSTR("UDID"))) {
+    
+    }
+out:
+    return;
+}
+
+static void machine_authentication(CFDataRef req, CFDataRef reply)
+{
+    CFDataRef machine_auth_request = CFDataCreateWithBytesNoCopy(kCFAllocatorDefault, 
+        (uint8_t*)auth, strlen(auth), kCFAllocatorNull);
+    CFDictionaryRef auth_dict = NULL;
+    CFMutableDictionaryRef auth_reply_dict = 
+        CFDictionaryCreateMutable(kCFAllocatorDefault, 0, 
+        &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+        
+    if (req) { CFRelease(machine_auth_request); machine_auth_request = req; CFRetain(req); }
+    CFDictionaryRef auth_request_dict = CFPropertyListCreateWithData(kCFAllocatorDefault,
+        machine_auth_request, kCFPropertyListImmutable, NULL, NULL);
+    
+    require(auth_reply_dict, out);
+    require(valid_cf_obj(auth_request_dict, CFDictionaryGetTypeID()), out);
+    require(auth_dict = dict_get_value_of_type(auth_request_dict, CFSTR("PayloadContent"), CFDictionaryGetTypeID()), out);
+    CFStringRef challenge = dict_get_value_of_type(auth_dict, CFSTR("CHALLENGE"), CFStringGetTypeID());
+    if (challenge)
+        CFDictionarySetValue(auth_reply_dict, CFSTR("CHALLENGE"), challenge);
+    CFArrayRef device_info = dict_get_value_of_type(auth_dict, CFSTR("DeviceAttributes"), CFArrayGetTypeID());
+    if (device_info)
+        CFArrayApplyFunction(device_info, CFRangeMake(0, CFArrayGetCount(device_info)), 
+            annotate_machine_info, auth_reply_dict);
+    
+    // make copy of reply dict
+out:
+    CFReleaseSafe(machine_auth_request);
+    CFReleaseSafe(auth_request_dict);
+}
+#endif
+
+extern int command_spc(int argc, char * const *argv)
+{
+    SecIdentityRef identity = NULL;
+       extern char *optarg;
+    extern int optind;
+       int arg;
+       while ((arg = getopt(argc, argv, "du:p:")) != -1) {
+               switch (arg) {
+            case 'd':
+                debug = 1;
+                break;
+            case 'u':
+                               user = optarg;
+                               break;
+                       case 'p':
+                pass = optarg;
+                               break;
+                       case 'h':
+                       default:
+                               return SHOW_USAGE_MESSAGE;
+               }
+       }
+
+       argc -= optind;
+       argv += optind;
+
+#if 0
+    if (argc == 1) {
+        // get plist from argv[0] url
+    } else if (argc == 0) {
+        machine_authentication(NULL, NULL);
+    } else return SHOW_USAGE_MESSAGE;
+#endif
+
+    if (argc != 1)
+        return SHOW_USAGE_MESSAGE;
+
+    int result = -1;
+    CFDictionaryRef dict = NULL;
+    CFDictionaryRef scep_config = NULL;
+    CFDictionaryRef payload_content = NULL;
+    CFStringRef profile_url = NULL;
+    CFDataRef profile_data = NULL;
+    CFDataRef profile_plist = NULL;
+    CFStringRef machine_id_url_cfstring = CFStringCreateWithCString(kCFAllocatorDefault,
+        argv[0], kCFStringEncodingUTF8);
+    CFDictionaryRef enroll_packet =
+        get_encrypted_profile_packet(machine_id_url_cfstring);
+    require(enroll_packet && CFGetTypeID(enroll_packet) == CFDictionaryGetTypeID(), out);
+    //require(payload_type(enroll_packet, "Encrypted Profile Service"), out);
+    require(payload_content = dict_get_value_of_type(enroll_packet,
+        CFSTR("PayloadContent"), CFDictionaryGetTypeID()), out);
+    require(scep_config = dict_get_value_of_type(payload_content, 
+        CFSTR("SCEP"), CFDictionaryGetTypeID()), out);
+    require(identity = perform_scep(scep_config), out);
+    dict = CFDictionaryCreate(NULL, (const void **)&kSecValueRef, (const void **)&identity, 1, NULL, NULL);
+    require_noerr(SecItemAdd(dict, NULL), out);
+    CFReleaseNull(dict);
+    require(profile_url = dict_get_value_of_type(payload_content,
+        CFSTR("URL"), CFStringGetTypeID()), out);
+        
+    require(profile_data = copy_profile(profile_url, identity), out);
+    if (debug)
+        write_data("/tmp/profile.mobileconfig", profile_data);
+    
+    require_noerr(SecCMSVerify(profile_data, NULL, NULL, NULL, &profile_plist), out);
+    CFReleaseNull(profile_data);
+    require(profile_plist, out);
+    require(validate_profile(profile_plist, identity), out);
+
+    result = 0;
+out:
+    CFReleaseSafe(dict);
+    CFReleaseSafe(identity);
+    CFReleaseSafe(enroll_packet);
+    CFReleaseSafe(profile_data);
+    CFReleaseSafe(profile_plist);
+    CFReleaseSafe(machine_id_url_cfstring);
+
+    if (result != 0)
+        errx(1, "fail.");
+    return result;
+}
+
+
+#endif // TARGET_OS_IPHONE && !TARGET_OS_SIMULATOR