[英]Encrypted string length
您好,我在使用密碼字符串獲取用戶pdf時遇到問題。 它顯示以下錯誤:
javax.crypto.IllegalBlockSizeException:使用填充密碼解密時,輸入長度必須是8的倍數
代碼在那里:
public void getPDF(WebRequest request, ResourceResponse response, Model model,
@RequestParam("cif") String cif,
@RequestParam("cuenta") String cuenta,
@RequestParam("objectId") String encryptedObjectId) throws Exception{
log.info("Inicio metodo getPDF");
OutputStream os = response.getPortletOutputStream();
try {
CipherHelper cipher = new CipherHelper(CipherHelper.TRIPLE_DES_ALGORITHM, InterfazConstantes.ENCRYPTION_KEY, InterfazConstantes.ENCRYPTION_SHIFT);
String objectId = cipher.decrypt(encryptedObjectId, true);
public String getEncryptedObjectID() {
try {
CipherHelper cipher = new CipherHelper(CipherHelper.TRIPLE_DES_ALGORITHM, InterfazConstantes.ENCRYPTION_KEY, InterfazConstantes.ENCRYPTION_SHIFT);
encryptedObjectID = cipher.encrypt(objectID, true);
} catch (Exception e) {
}
return encryptedObjectID;
}
**我確定cryptocurrid id的長度為40,但是不能解決問題。
錯誤的蹤跡是:
javax.crypto.IllegalBlockSizeException: Input length must be multiple of 8 when decrypting with padded cipher
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..) ~[sunjce_provider.jar:1.6]
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..) ~[sunjce_provider.jar:1.6]
有人能幫我嗎?
謝謝
該問題最有可能是由於將String用於二進制數據(加密的文本= byte[]
)。 然后使用默認編碼。
String s = new String(bytes, StandardCharsets.ISO_8859_1);// Single byte encoding
byte[] bytes = s.getBytes(StandardCharsets.ISO_8859_1);
new OutputStreamWriter(outputStream, StandardCharsets.ISO_8859_1)
new InputStreamReader(inputStream, StandardCharsets.ISO_8859_1)
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