用户认证功能有哪些？

一是涉密系统，需要高度安全防护地方；二是针对大规模人群的身份鉴别的技术；三是针对城市公共事务的市民应用；四是从现实生活进入互联网虚拟世界的认证应用。

HarmonyOS

海不辞水

2024-05-28 21:30:45

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回答 1

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回答 1

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宇宙无敌超英俊

核心代码解释

通过navigationButtonText属性进行用户认证。

import userAuth from '@ohos.userIAM.userAuth' 
import PermissionManager from '../util/PermissionManager' 
  
@Component 
export struct UserAuth { 
  
  build() { 
    Column() { 
      Text('用户认证').fontSize(50) 
      Button('用户认证 身份认证类型：PIN码，信任等级 ATL4').width('80%') 
        .onClick(async () => { 
          const authParam : userAuth.AuthParam = { 
            challenge: new Uint8Array([49, 49, 49, 49, 49, 49]), 
            authType: [userAuth.UserAuthType.PIN], 
            authTrustLevel: userAuth.AuthTrustLevel.ATL4, 
          }; 
          const widgetParam :userAuth.WidgetParam = { 
            title: '请输入锁屏密钥' 
          }; 
          try { 
            const userAuthInstance = userAuth.getUserAuthInstance(authParam, widgetParam); 
            userAuthInstance.on('result', { 
              onResult(result) { 
                console.log('wsf: userAuthInstance callback result = ' + JSON.stringify(result)); 
              } 
            }) 
            await PermissionManager.getInstance().requestPermission(['ohos.permission.ACCESS_BIOMETRIC']) 
            userAuthInstance.start() 
          } catch (error) { 
            console.error('wsf: auth catch error: ' + JSON.stringify(error)); 
          } 
        }) 
  
      Button('用户认证 身份认证类型：FACE').width('80%') 
        .onClick(async () => { 
          const authParam : userAuth.AuthParam = { 
            challenge: new Uint8Array([49, 49, 49, 49, 49, 49]), 
            authType: [userAuth.UserAuthType.FACE], 
            authTrustLevel: userAuth.AuthTrustLevel.ATL1, 
          }; 
          const widgetParam :userAuth.WidgetParam = { 
            title: '请输入密钥', 
          }; 
          try { 
            const userAuthInstance = userAuth.getUserAuthInstance(authParam, widgetParam); 
            userAuthInstance.on('result', { 
              onResult(result) { 
                console.log('wsf: userAuthInstance callback result = ' + JSON.stringify(result)); 
              } 
            }) 
            await PermissionManager.getInstance().requestPermission(['ohos.permission.ACCESS_BIOMETRIC']) 
            userAuthInstance.start() 
          } catch (error) { 
            console.error('wsf: auth catch error: ' + JSON.stringify(error)); 
          } 
        }) 
  
      Button('用户认证 身份认证类型：指纹').width('80%') 
        .onClick(async () => { 
          const authParam : userAuth.AuthParam = { 
            challenge: new Uint8Array([49, 49, 49, 49, 49, 49]), 
            authType: [userAuth.UserAuthType.FINGERPRINT], 
            authTrustLevel: userAuth.AuthTrustLevel.ATL1, 
          }; 
          const widgetParam :userAuth.WidgetParam = { 
            title: '把手指头放上面', 
            navigationButtonText: "我是导航按键" // 只能在指纹，人脸类型设置；暂不生效 
          }; 
          try { 
            const userAuthInstance = userAuth.getUserAuthInstance(authParam, widgetParam); 
            userAuthInstance.on('result', { 
              onResult(result) { 
                console.log('wsf: userAuthInstance callback result = ' + JSON.stringify(result)); 
              } 
            }) 
            await PermissionManager.getInstance().requestPermission(['ohos.permission.ACCESS_BIOMETRIC']) 
            userAuthInstance.start() 
          } catch (error) { 
            console.error('wsf: auth catch error: ' + JSON.stringify(error)); 
          } 
        }) 
  
      Button('用户认证 5s后自动取消').width('80%') 
        .onClick(async () => { 
          const authParam : userAuth.AuthParam = { 
            challenge: new Uint8Array([49, 49, 49, 49, 49, 49]), 
            authType: [userAuth.UserAuthType.PIN], 
            authTrustLevel: userAuth.AuthTrustLevel.ATL4, 
          }; 
          const widgetParam :userAuth.WidgetParam = { 
            title: '请输入锁屏密钥', 
          }; 
          try { 
            const userAuthInstance = userAuth.getUserAuthInstance(authParam, widgetParam); 
            userAuthInstance.on('result', { 
              onResult(result) { 
                console.log('wsf: userAuthInstance callback result = ' + JSON.stringify(result)); 
              } 
            }) 
            await PermissionManager.getInstance().requestPermission(['ohos.permission.ACCESS_BIOMETRIC']) 
            userAuthInstance.start() 
            setTimeout(() => { 
              userAuthInstance.cancel() 
            }, 5000) 
          } catch (error) { 
            console.error('wsf: auth catch error: ' + JSON.stringify(error)); 
          } 
        }) 
    } 
  } 
}

2024-05-29 22:41:44

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