Base64 decode 시 Input byte array has wrong 4-byte ending unit 오류 해결

Question

Base64 로 인코딩된 데이터를 디코딩 중인데 Input byte array has wrong 4-byte ending unit 해당 오류가 지속적으로 발생 중입니다.String data &#61; &#34;wcDMA1aW1uULYaUFAQv9F&#43;hyU7xotLMd3T7N3ox3fUogtzgk7c&#43;mRtOq848UJ68y&#34; &#43; &#34;SbK7wIoCspumiNDjY/9WxsJHoJLAx24ho5n2Ww5A6c5CL1QJ9JHEED2x3kZG&#43;WjV&#34; &#43; &#34;FfLYuQVj71UFQOjhvLs8zyTJYalE3&#43;MoLh76bhLKmWFse9OPkvibXIRVJnLkhxkt&#34; &#43; &#34;gxAhY8mam5AEGvh6E4nUyJYqBGIVxkvPNBnUChRc5TyA4kFY7bVINUbUCfCO0wKW&#34; &#43; &#34;vwuR77BT6FyoUVF7eL9RwFtfBWdgjq89jpNatEHeTcxLbY13pnL8PAtMhBH4Mq&#43;D&#34; &#43; &#34;4U8V&#43;3x/0Nxl0HOH/Pntr7B7gGiVyWMFb6VRz&#43;R6J7z1r6jYBarZAW6qkQegyeAS&#34; &#43; &#34;JLSZga1brJ8mIsN8&#43;YIMIxPZTddI8KwXaZFQEI2Vql3LIZDDLrZk5pbx3N9eUKDI&#34; &#43; &#34;Q/NKdLI9rWaX6vOwU09OlxXSaAQjUOn5xWfXHQsYsbN5WBGr&#43;gJu6zxhxmh5YnFn&#34; &#43; &#34;g8rFM&#43;8fWNWWHItZ1qAX0sHpAaF9EsdySD4YckxLNf&#43;0Ajdsas2TnlpeZuDzp4NG&#34; &#43; &#34;TtVFUqxZf6sZJEBhU7wX7lUsAnr4HmQnTlKz0jml8jeflMjBgBGJ/lRgjM51q0Ec&#34; &#43; &#34;TS2tGTK3HTyIqDif6WALwEu5&#43;sl8SW2ZNcHStsqtsokoFu&#43;KDgk//q2wnNNFuM3T&#34; &#43; &#34;SpIFAw&#43;s7mchprJsquRnClxTdNNkyiHBlBCmz&#43;/deAvnzfNvWSVtClVpUsishlQy&#34; &#43; &#34;DRZgVqO0qcQzGxmX103szpDTd&#43;WVTUq0xvFKTNh5Ujp3p040TDllOpA/WEUMBJQ0&#34; &#43; &#34;TIhqxu48PyGqMTBcm44uX2MTNG7wWpk31s/AOXgfWWPRYV7SEs6oAkBXH/vO3fEP&#34; &#43; &#34;wb1kqka2UooQ/vlHY&#43;XeahbpldDLrdj&#43;ACepYSbV2XXWRzTssu/jqqbs70xsOZw/&#34; &#43; &#34;&#43;TKwjMUhS3TKKztY3aQ9vIusoUvftecX3S85FtFQf9kLxG3eRpHnaLjGH/4Cj0Rt&#34; &#43; &#34;7p2ootQycpv7KH0WaWfQY&#43;lv6M/wtZviYg51wUhec87KFKssbMxW3Bs&#43;SGboVKn6&#34; &#43; &#34;gJ1NkP4ih72MsIjLpxwNShBweFd9r0gOPSj9oRSXfpVqi/v1ICtKpYSUbS7ZTJru&#34; &#43; &#34;ISX2wWnAjJCchDycwxCrmOOTbMY8k71noTU7Aj9v6IhNzBbAUwhlkvQrDx2uphdE&#34; &#43; &#34;LUne7xnd/rWxLhuSytnn6RHnF&#43;GWuHKogik1fWGGNGjBW/QRexNI7rZU2FVeM4tx&#34; &#43; &#34;Qg1h6mEPNzJBOq7R8tz0kyNqJIun4I7RQ71s7F&#43;ckiXzuzXggE6sQbgw1PWEdqCh&#34; &#43; &#34;bQtEZZE92rrA&#43;YfFLJdouVwCX01Y7bwuRejnjiHAGZZ6NanpjLdjBVd&#43;ZIM2Yty0&#34; &#43; &#34;a89nuLVDgA&#43;C6Q5NcVzcznL&#43;4ypKN3yNbrEs&#61;hZuX&#61;&#34;;해당 데이터로 테스트 중이며 public static String rsaDecode(String encryptedPlainText, String privateKey) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, InvalidKeySpecException, IllegalBlockSizeException, BadPaddingException, UnsupportedEncodingException { byte[] encryptedPlainTextByte &#61; Base64.getDecoder().decode(encryptedPlainText); Cipher cipher &#61; Cipher.getInstance(INSTANCE_TYPE); cipher.init(Cipher.DECRYPT_MODE, convertPrivateKey(privateKey)); return new String(cipher.doFinal(encryptedPlainTextByte)); }매서드로 디코딩 중입니다.끝에 &#34;&#61;&#34; 추가해 패딩 확인도 해봤는데 계속 같은 오류 발생합니다.해결방법 있을까요?

Clickin · Answer

혹시 Java 8 버그에 해당하는지 한번 확인해보실까요?옛날 버그긴 한데 혹시나... jdk8 b86 이하를 사용하고 계시면 버그에 해당할 수 있습니다.https://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8008925

bluepenguin · Answer

base64 validation 체크부터 해보셔야 할것같습니다.

Base64 decode 시 Input byte array has wrong 4-byte ending unit 오류 해결

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