# CodelabKeyStore

**Repository Path**: qthy/codelab-key-store

## Basic Information

- **Project Name**: CodelabKeyStore
- **Description**: Android KeyStore 存储密钥
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2023-04-23
- **Last Updated**: 2023-11-02

## Categories & Tags

**Categories**: Uncategorized

**Tags**: Android, keystore

## README


android 8.1
keystore 存储位置：/data/misc/keystore/user_0/


正常生成密钥时会生成两个文件，分别存储证书和密钥（其中 'qthy' 是别名）：
* /data/misc/keystore/user_0/10088_USRCERT_qthy
* /data/misc/keystore/user_0/10088_USRPKEY_qthy


异常问题：
生成密钥时异常断电，只生成 USRPKEY 文件，此时alias是能获取到的，
/data/misc/keystore/user_0/10088_USRPKEY_qthy
但是获取密钥时会抛出以下异常，
~~~
java.lang.NullPointerException: invalid null input
	at java.security.KeyStore$PrivateKeyEntry.<init>(KeyStore.java:559)
	at java.security.KeyStore$PrivateKeyEntry.<init>(KeyStore.java:526)
	at java.security.KeyStoreSpi.engineGetEntry(KeyStoreSpi.java:485)
	at java.security.KeyStore.getEntry(KeyStore.java:1560)
	at com.example.codelabkeystore.KeyStoreUtils.encryptRSA(KeyStoreUtils.java:104)
	at com.example.codelabkeystore.KeyStoreUtils.encryptRSAToString(KeyStoreUtils.java:92)
	at com.example.codelabkeystore.MainActivity.onCreate$lambda$3$lambda$2(MainActivity.kt:26)
	at com.example.codelabkeystore.MainActivity.$r8$lambda$lbZXsiUVuWLPNV0pruOhx4PlqTg(Unknown Source:0)
	at com.example.codelabkeystore.MainActivity$$ExternalSyntheticLambda6.run(Unknown Source:6)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
	at java.lang.Thread.run(Thread.java:764)
~~~