Java转ColdFusion：带密码的加密PEM密钥解密问题

我需要把Java中使用OpenSSL解密带密码加密的PEM私钥的逻辑转换为ColdFusion代码，目前已经完成部分转换，但卡在了Java代码中的decryptPrivateKeyInfo调用这一步，当前ColdFusion代码的密钥获取部分无法正常工作。

Java原代码 #

String privateKeyFile = "test_key.pem";
FileInputStream privateKey = null;
PEMParser pemRd = new PEMParser(new InputStreamReader(privateKey));
Object objectInPemFile = pemRd.readObject();
PKCS8EncryptedPrivateKeyInfo keyInfo = (PKCS8EncryptedPrivateKeyInfo) objectInPemFile;
String pwd = "secret";
InputDecryptorProvider pkcs8Prov = new JceOpenSSLPKCS8DecryptorProviderBuilder().build(pwd.toCharArray());
PrivateKeyInfo privateKeyInfo = keyInfo.decryptPrivateKeyInfo(pkcs8Prov);

无法转换的关键代码 #

PrivateKeyInfo privateKeyInfo = keyInfo.decryptPrivateKeyInfo(pkcs8Prov);

当前ColdFusion代码（密钥获取部分失效） #

privateKeyFile = createObject("java", "java.io.FileReader").init(ExpandPath("test_key.pem") );
privateKey = createObject("java", "org.bouncycastle.openssl.PEMParser").init( privateKeyFile ).readPemObject().getContent();
 
privateKey= toBase64(privateKey);
privateKeyFile.close();

privateKey = privateKey.replaceAll("^-+BEGIN RSA PRIVATE KEY-+", "");
privateKey = privateKey.replaceAll("-+END RSA PRIVATE KEY-+", "");
privateKey = privateKey.replaceAll(chr(10), "").trim();

decryptorProvider = createObject("java", "org.bouncycastle.openssl.jcajce.JceOpenSSLPKCS8DecryptorProviderBuilder").build('secret');

decryptedKeyPair = createObject("java","org.bouncycastle.openssl.PEMEncryptedKeyPair");

内容的提问来源于stack exchange，提问作者Vlado