嗨，我正在使用 tripedes 键从输入流中读取并写入输出流。在 java7/8 中获取此执行：由：javax.crypto.BadPaddingException：给定最终块未正确填充
byte[] passwd = Base64Util.decode(pwd);
bais = new ByteArrayInputStream(passwd);
baos = new ByteArrayOutputStream();
Cipher cipher = Cipher.getInstance("DESede");
cipher.init(Cipher.DECRYPT_MODE, key);
// Read bytes, decrypt, and write them out.
byte[] buffer = new byte[2048];
int bytesRead;
while ((bytesRead = bais.read(buffer)) != -1) {
out.write(cipher.update(buffer, 0, bytesRead));
}
// Write out the final bunch of decrypted bytes
out.write(cipher.doFinal());
out.flush();
谁能告诉我 cipher.doFinal 中可能有什么错误？
更新，从评论中复制的加密代码：
Cipher cipher = Cipher.getInstance("DESede");
cipher.init(Cipher.ENCRYPT_MODE, key);
// Create a special output stream to do the work for us
CipherOutputStream cos = new CipherOutputStream(out, cipher);
// Read from the input and write to the encrypting output stream
byte[] buffer = new byte[2048];
int bytesRead;
while ((bytesRead = in.read(buffer)) != -1) {
cos.write(buffer, 0, bytesRead);
}
cos.close();