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[英]What algorithm does java.security.KeyStore use to encrypt the privateKey in KeyStore.setKeyEntry() and KeyStore.store()?
[英]How to store and load keys using java.security.KeyStore class
創建密鑰后,如何使用Keystore類的方法存儲它們以及如何加載密鑰?
儲存:
KeyStore ks = KeyStore.getInstance("JKS");
ks.setKeyEntry("keyAlias", key, passwordForKeyCharArray, certChain);
OutputStream writeStream = new FileOutputStream(filePathToStore);
ks.store(writeStream, keystorePasswordCharArray);
writeStream.close();
注意,除非您傳遞PrivateKey
,否則certChain可能為null
加載:
KeyStore ks = KeyStore.getInstance("JKS");
InputStream readStream = new FileInputStream(filePathToStore);
ks.load(readStream, keystorePasswordCharArray);
Key key = ks.getKey("keyAlias", passwordForKeyCharArray);
readStream.close();
閱讀javadocs
編輯:
請注意,如果要存儲SecretKey或使用SunJCE提供程序的任何部分(Java Cryptography Extension),則需要將KeyStore類型設置為JCEKS。
KeyStore ks = KeyStore.getInstance("JCEKS");
我遇到了一個我不知道密鑰別名的情況,但我知道密鑰庫中只有一個密鑰。 我使用以下代碼加載密鑰(在加載密鑰庫之后,如上所示):
Enumeration<String> aliases = keyStore.aliases();
String alias = aliases.nextElement();
KeyStore.PrivateKeyEntry keyEnt = (KeyStore.PrivateKeyEntry) keyStore.getEntry(alias,
new KeyStore.PasswordProtection(keystorePass.toCharArray()));
PrivateKey privateKey = keyEnt.getPrivateKey();
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