我有以下代码:
PEMParser pemParser;
File telexuskeys = new File(locationKey);
if(telexuskeys.exists())
pemParser = new PEMParser(new FileReader(telexuskeys));
else{
usage(ops);
throw new FileNotFoundException("The key file (company's certificate) doesn't exist!");
}
System.out.println("Loading company's certificate");
Object object = pemParser.readObject();
Object object2 = pemParser.readObject();
PEMDecryptorProvider decProv = new JcePEMDecryptorProviderBuilder().build(passwordPem.toCharArray());
JcaPEMKeyConverter converter = new JcaPEMKeyConverter().setProvider("BC");
byte[] keyBytes = PrivateKeyInfo.getInstance(object2).getEncoded();
PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(keyBytes);
KeyFactory kf = KeyFactory.getInstance("RSA", "BC");
PrivateKey pk = kf.generatePrivate(spec);
我的pem文件只有证书和私钥。我曾经能够读取文件并获取私钥,但现在该文件受密码保护(加密)。什么是我仍然缺少的指令。我知道我需要使用PEMDecryptorProvider和JcaPEMKeyConverter对象才能获得它,但我没有找到正确的组合。
答案 0 :(得分:4)
以下代码为我工作。 (使用Bouncy Castle的bcpkix和bcprov库)。
private PrivateKey readPrivateKey(String privateKeyPath, String keyPassword) throws IOException {
FileReader fileReader = new FileReader(privateKeyPath);
PEMParser keyReader = new PEMParser(fileReader);
JcaPEMKeyConverter converter = new JcaPEMKeyConverter();
PEMDecryptorProvider decryptionProv = new JcePEMDecryptorProviderBuilder().build(keyPassword.toCharArray());
Object keyPair = keyReader.readObject();
PrivateKeyInfo keyInfo;
if (keyPair instanceof PEMEncryptedKeyPair) {
PEMKeyPair decryptedKeyPair = ((PEMEncryptedKeyPair) keyPair).decryptKeyPair(decryptionProv);
keyInfo = decryptedKeyPair.getPrivateKeyInfo();
} else {
keyInfo = ((PEMKeyPair) keyPair).getPrivateKeyInfo();
}
keyReader.close();
return converter.getPrivateKey(keyInfo);