If you don't know to do this leave it alone. Image and text are super clear

nothing to be specific for

clear image

(1 point) This question concerns block cipher padding. Suppose the block cipher has a block size of 19 bytes. A certain message ends with a partial block which is 7 bytes. We must reversibly pad out the message to use some block cipher modes, such as CBC (even if the last block is full). Consider the following padding strategy. Append a single byte with value 128, and then as many zero bytes as required to make the overall length a multiple of 19. Suppose the final (possibly partial) block of the message is "0x00010203040506" in hexadecimal. Write out the complete final block in hexadecimal. Please do not put a leading Ox as this has been written already. Ox (1 point) This question concerns block cipher padding. Suppose the block cipher has a block size of 18 bytes. A certain message ends with a partial block which is 3 bytes. We must reversibly pad out the message to use some block cipher modes, such as CBC (even if the last block is full). Consider the following padding strategy. Determine the number of padding bytes required. This is a number n which satisfies 1