Resign｜重签名验证代码

void checkCodesign(NSString *id){
 // 描述文件路径
 NSString *embeddedPath = [[NSBundle mainBundle] pathForResource:@"embedded" ofType:@"mobileprovision"];
 // 读取application-identifier 注意描述文件的编码要使用:NSASCIIStringEncoding
 NSString *embeddedProvisioning = [NSString stringWithContentsOfFile:embeddedPath encoding:NSASCIIStringEncoding error:nil];
 NSArray *embeddedProvisioningLines = [embeddedProvisioning componentsSeparatedByCharactersInSet:[NSCharacterSet newlineCharacterSet]];
  
 for (int i = 0; i < embeddedProvisioningLines.count; i++) {
 if ([embeddedProvisioningLines[i] rangeOfString:@"application-identifier"].location != NSNotFound) {
   
  NSInteger fromPosition = [embeddedProvisioningLines[i+1] rangeOfString:@"<string>"].location+8;
   
  NSInteger toPosition = [embeddedProvisioningLines[i+1] rangeOfString:@"</string>"].location;
   
  NSRange range;
  range.location = fromPosition;
  range.length = toPosition - fromPosition;
   
  NSString *fullIdentifier = [embeddedProvisioningLines[i+1] substringWithRange:range];
  NSArray *identifierComponents = [fullIdentifier componentsSeparatedByString:@"."];
  NSString *appIdentifier = [identifierComponents firstObject];
  
  // 对比签名ID
  if (![appIdentifier isEqual:id]) {
  //exit
  asm(
   "mov X0,#0\n"
   "mov w16,#1\n"
   "svc #0x80"
   );
  }
  break;
 }
 }
}