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。
Storage , transportation and maintenance of media for use in data processing and information storage - recommendations for 12 . 7 mm magnetic tape cartridges for data interchange , recording at 1491 data bytes per millimetre on 18 tracks 数据处理和信息存储介质的储存传送和维护.第5部分:数据交换用在18磁道上以每毫米1491数据字节记录的12 . 7mm盒式磁带推荐标准