I use a block cipher algorithm for encryption that requires the clear data bytes to be in blocks of 8 bytes, so I pad the last incomplete block with some characters.
我对需要将明文数据字节放在8字节块的加密使用块密码算法，所以我用一些字符填充最后一个不完整的块。
2
The chips store personal data that can be transmitted to readers, say at a shop checkout stand, by tapping a handset on a pad.
这种芯片可以存储个人资料传送给读取设备，在商店收银台，在点击手机付款。
3
It reduces subtle ideas to bullet points, while it encourages you to pad out a presentation with irrelevant data because cutting and pasting is far too easy.