This is simply the 'update' with the padding block. The padding block is 0x01 || 0x00* || 0x80. First 0x01 and last 0x80 bytes are always present, but they can be the same byte.
See Implementation
This is simply the 'update' with the padding block. The padding block is 0x01 || 0x00* || 0x80. First 0x01 and last 0x80 bytes are always present, but they can be the same byte.