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Eccouncil Exam 212-81 Topic 13 Question 56 Discussion
Actual exam question for
Eccouncil's
212-81 exam
Question #: 56
Topic #: 13
[All 212-81 Questions]
Topic #: 13
Cryptographic hashes are often used for message integrity and password storage. It is important to understand the common properties of all cryptographic hashes. What is not true about a hash?
Suggested Answer:
B
Reversible
https://en.wikipedia.org/wiki/Hash_function
Hash functions are not reversible.
Incorrect answers:
Fixed length output and Variable length input. Hash function receive variable length input and produce fixed length output
Few collisions. Every hash function with more inputs than outputs will necessarily have collisions
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