iphone - 将客户端证书导入 iPhone 的钥匙串(keychain)

Question

我正在编写一个与服务器通信的应用程序，该服务器要求客户端使用客户端证书对自身进行身份验证。我需要从应用程序包中的 .p12 文件中提取证书并将其添加到应用程序钥匙串(keychain)中。

我一直在努力弄清楚如何让它从 Apple 的 "Certificate, Key, and Trust Services Tasks for iOS" 开始工作。 ，但对我来说它似乎不完整并且没有指定我如何向钥匙串(keychain)添加任何东西(？)。

我很迷茫，需要任何帮助，在此先感谢!

Answer 1

“Certificate, Key, and Trust Services Tasks for iOS”确实包含从 .p12 文件中提取证书的足够信息。

• list 2-1 演示了如何提取 SecIdentityRef

• list 2-2 第二行 (//1) 显示了如何复制SecCertificateRef 来自 SecIdentityRef。

示例 加载 p12 文件、提取证书、安装到钥匙串(keychain)。(不包括错误处理和内存管理)

  NSString * password = @"Your-P12-File-Password";
  NSString * path = [[NSBundle mainBundle]
                     pathForResource:@"Your-P12-File" ofType:@"p12"];

  // prepare password
  CFStringRef cfPassword = CFStringCreateWithCString(NULL,
                                                     password.UTF8String,
                                                     kCFStringEncodingUTF8);
  const void *keys[]   = { kSecImportExportPassphrase };
  const void *values[] = { cfPassword };
  CFDictionaryRef optionsDictionary
  = CFDictionaryCreate(kCFAllocatorDefault, keys, values, 1,
                                                  NULL, NULL);

  // prepare p12 file content
  NSData * fileContent = [[NSData alloc] initWithContentsOfFile:path];
  CFDataRef cfDataOfFileContent = (__bridge CFDataRef)fileContent;

  // extract p12 file content into items (array)
  CFArrayRef items = CFArrayCreate(NULL, 0, 0, NULL);
  OSStatus status = errSecSuccess;
  status = SecPKCS12Import(cfDataOfFileContent,
                           optionsDictionary,
                           &items);
  // TODO: error handling on status

  // extract identity
  CFDictionaryRef yourIdentityAndTrust = CFArrayGetValueAtIndex(items, 0);
  const void *tempIdentity = NULL;
  tempIdentity = CFDictionaryGetValue(yourIdentityAndTrust,
                                      kSecImportItemIdentity);

  SecIdentityRef yourIdentity = (SecIdentityRef)tempIdentity;


  // get certificate from identity
  SecCertificateRef yourCertificate = NULL;
  status = SecIdentityCopyCertificate(yourIdentity, &yourCertificate);


  // at last, install certificate into keychain
  const void *keys2[]   = {    kSecValueRef,             kSecClass };
  const void *values2[] = { yourCertificate,  kSecClassCertificate };
  CFDictionaryRef dict
  = CFDictionaryCreate(kCFAllocatorDefault, keys2, values2,
                                            2, NULL, NULL);
  status = SecItemAdd(dict, NULL);

  // TODO: error handling on status