从Android中的PKCS＃1编码字符串创建私钥对象

Question

我尝试从给定的私钥创建RSA私钥。

这就是我想要做的事情：

String prK = "MIIBOQIBAAJAVJhUS0gLqXLOmVv2xG23oFPwim9+rVxGhLUXqKShQCvB3iRMOHn7\n" +
        "/GNJumpwmnglcsNXuqAhN0OxqKGGJdtYdwIDAQABAkBP0VrXnSbDvvuIX+k59Xvo\n" +
        "3sp7FDAmSoaO+H9WM9+ht5H/f/geIrSEXSIkFLnzniMwtOJ422GmkDkL1F67HuDh\n" +
        "AiEAlNauDiq3RqoXufbauyPEOG9fMS2pvB+auT2XCHJhhKsCIQCRgIo7WIRZYnNp\n" +
        "NRWaoppUQK3g+aM8sdeBYpbs2nwDZQIgZXIxrmxFAUAb7d+oVFdbfc/DRSTHhPbR\n" +
        "oaKuF87GUwMCIFmzaATsLjO42TPMETSS+BfnBAtFe5hIf3Z5pFgC3h9tAiEAgYju\n" +
        "g92fmVvE+CcRSg6at7meSEbK/Kxg7Ar4mlkXMlI=";


byte[] privateKeyBytes = prK.getBytes(StandardCharsets.UTF_8);

PrivateKey privateKey = null;
try {
    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
    KeySpec privateKeySpec = new PKCS8EncodedKeySpec(privateKeyBytes);
    privateKey = keyFactory.generatePrivate(privateKeySpec);
} catch (NoSuchAlgorithmException e) {
    e.printStackTrace();
} catch (InvalidKeySpecException e) {
    e.printStackTrace();
}

然而，抛出系统错误：

 06-13 13:38:22.965 23257-23257/com.example.michael.dather W/System.err: java.security.spec.InvalidKeySpecException: java.lang.RuntimeException: error:0c0890ba:ASN.1 encoding routines:asn1_check_tlen:WRONG_TAG
 06-13 13:38:22.965 23257-23257/com.example.michael.dather W/System.err:     at com.android.org.conscrypt.OpenSSLKey.getPrivateKey(OpenSSLKey.java:283)
 06-13 13:38:22.965 23257-23257/com.example.michael.dather W/System.err:     at com.android.org.conscrypt.OpenSSLRSAKeyFactory.engineGeneratePrivate(OpenSSLRSAKeyFactory.java:64)
 06-13 13:38:22.965 23257-23257/com.example.michael.dather W/System.err:     at java.security.KeyFactory.generatePrivate(KeyFactory.java:187)
 06-13 13:38:22.965 23257-23257/com.example.michael.dather W/System.err:     at com.example.michael.dather.SECURITY.Encrypt$override.rsaDecrypt(Encrypt.java:145)
 06-13 13:38:22.965 23257-23257/com.example.michael.dather W/System.err:     at com.example.michael.dather.SECURITY.Encrypt$override.rsaEncrypt(Encrypt.java:117)
 06-13 13:38:22.965 23257-23257/com.example.michael.dather W/System.err:     at com.example.michael.dather.SECURITY.Encrypt$override.init$body(Encrypt.java:45)
 06-13 13:38:22.965 23257-23257/com.example.michael.dather W/System.err:     at com.example.michael.dather.SECURITY.Encrypt$override.access$dispatch(Encrypt.java)
 06-13 13:38:22.965 23257-23257/com.example.michael.dather W/System.err:     at com.example.michael.dather.SECURITY.Encrypt.<init>(Encrypt.java:0)

privateKey = keyFactory.generatePrivate(privateKeySpec);

有谁知道我的代码可能出错？