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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
创建密钥后,如何使用Keystore类的方法存储它们以及如何加载密钥?
储存:
KeyStore ks = KeyStore.getInstance("JKS");
ks.setKeyEntry("keyAlias", key, passwordForKeyCharArray, certChain);
OutputStream writeStream = new FileOutputStream(filePathToStore);
ks.store(writeStream, keystorePasswordCharArray);
writeStream.close();
注意,除非您传递PrivateKey
,否则certChain可能为null
加载:
KeyStore ks = KeyStore.getInstance("JKS");
InputStream readStream = new FileInputStream(filePathToStore);
ks.load(readStream, keystorePasswordCharArray);
Key key = ks.getKey("keyAlias", passwordForKeyCharArray);
readStream.close();
阅读javadocs
编辑:
请注意,如果要存储SecretKey或使用SunJCE提供程序的任何部分(Java Cryptography Extension),则需要将KeyStore类型设置为JCEKS。
KeyStore ks = KeyStore.getInstance("JCEKS");
我遇到了一个我不知道密钥别名的情况,但我知道密钥库中只有一个密钥。 我使用以下代码加载密钥(在加载密钥库之后,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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