// // SecSCTUtils.c // utilities /* * Copyright (c) 2015 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@ */ #include <AssertMacros.h> #include <utilities/SecCFWrappers.h> #include "SecSCTUtils.h" static size_t SSLDecodeSize(const uint8_t *p) { return (p[0]<<8 | p[1]); } CFArrayRef SecCreateSignedCertificateTimestampsArrayFromSerializedSCTList(const uint8_t *p, size_t listLen) { size_t encodedListLen; CFMutableArrayRef sctArray = CFArrayCreateMutable(kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks); require_quiet(sctArray, out); require(listLen > 2 , out); encodedListLen = SSLDecodeSize(p); p+=2; listLen-=2; require(encodedListLen==listLen, out); while (listLen > 0) { size_t itemLen; require(listLen >= 2, out); itemLen = SSLDecodeSize(p); p += 2; listLen-=2; require(itemLen <= listLen, out); CFDataRef sctData = CFDataCreate(kCFAllocatorDefault, p, itemLen); p += itemLen; listLen -= itemLen; require(sctData, out); CFArrayAppendValue(sctArray, sctData); CFReleaseSafe(sctData); } return sctArray; out: CFReleaseSafe(sctArray); return NULL; }