Question

MD5 uses a hash value to create a hash which is typically a 32 character hex number and how many bits?

Answer 1

Answer:

128 bits

Explanation:

The MD5, which is the acronym for Message-Digest algorithm 5, invented by a professor of MIT, Ronald Rivest, is a cryptographic hash algorithm that creates a 128 bit hash value and is typically represented as a 32 character hex number. MD5 is the improved version of MD4 which was also created by the same professor.

Following is an example format of an MD5 hash;

ef55d3a698d289f2afd663725127bccc

MD5 has been proven to have security issues. One of these issues is called collision attack - a situation where the same hash is produced for different input data.