1.) What is an error in the context of this after-chapter problem?

2.) Propose a way to find multiple messages that result in the same hash.

Initial hash (given): Plaintext (given): 01000110 01010101 block 1 00001001 00011101 block 2 01010110 11010001 block 3 00001101 00011101 block 4 Computing XOR by performing a vertical parity check in each bit position 00010100 10000100 Final XOR hash Initial hash (given): Plaintext (given): 01000110 01010101 block 1 00001001 00011101 block 2 01010110 11010001 block 3 00001101 00011101 block 4 Computing XOR by performing a vertical parity check in each bit position 00010100 10000100 Final XOR hash