ios - 是否可以仅使用密码进行身份验证，即使设备在 ios 中具有 touch id 功能，swift
<p><p>我想<strong>仅</strong>使用 <code>PassCode</code> 进行身份验证，即使设备具有 <code>Touch ID</code> 功能。我正在使用 <code>.deviceOwnerAuthentication</code> 评估策略方法。当我使用它时，</p>
<blockquote>
<ul>
<li>If user has enrolled touch id --> alway ask for touch id</li>
<li>If use hasn't enrolled touch id --> then only ask for passcode</li>
</ul>
</blockquote>
<p>我想要的是，即使用户已经注册了 <code>touch id</code>，只需要 <code>passcode</code>。希望您对此有所帮助。</p></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>这可以通过将 <code>SecAccessControlCreateFlags</code> 设置为 <code>.devicePasscode</code> 使用安全框架使用 <code>SecAccessControl</code> 来完成。</p>
<p>添加钥匙串(keychain)项，</p>
<pre><code>let secAccessControlbject: SecAccessControl = SecAccessControlCreateWithFlags(kCFAllocatorDefault,
kSecAttrAccessibleWhenUnlockedThisDeviceOnly,
.devicePasscode,
nil)!
let dataToStore = "AnyData".data(using: .utf8)!
let insertQuery: NSDictionary = [
kSecClass: kSecClassGenericPassword,
kSecAttrAccessControl: secAccessControlbject,
kSecAttrService: "PasscodeAuthentication",
kSecValueData: dataToStore as Any,
]
let insertStatus = SecItemAdd(insertQuery as CFDictionary, nil)
</code></pre>
<p>要通过密码屏幕进行身份验证，请访问已保存的项目，</p>
<pre><code> let query: NSDictionary = [
kSecClass:kSecClassGenericPassword,
kSecAttrService: "PasscodeAuthentication",
kSecUseOperationPrompt : "Sign in"
]
var typeRef : CFTypeRef?
let status: OSStatus = SecItemCopyMatching(query, &typeRef) //This will prompt the passcode.
if (status == errSecSuccess)
{
print("Authentication Success")
}
</code></pre></p>
<p style="font-size: 20px;">关于ios - 是否可以仅使用密码进行身份验证，即使设备在 ios 中具有 touch id 功能，swift，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/46723662/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/46723662/
</a>
</p>
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