New answers tagged collision-resistance
1
vote
Implementing a Merkle tree using a 128 bit hash function?
You absolutely need preimage resistance (both first preimage and second preimage) to have a functional merkle tree. Preimage resistance refers to finding hash inputs that give a given output. For an ...
- 1,236
4
votes
Accepted
What does the 256 in SHA3-256 and SHAKE256 refer to?
SHA3-256 this means the hash will be of 256 bits in length. Is this correct?
Yes, that is correct - exactly the same as SHA2-256 means that hash has an output of 256 bits.
But, then, what does the ...
- 140k
Top 50 recent answers are included