Matt, a forensic analyst, wants to obtain the digital fingerprint for a given message. The message
is 160-bits long. Which of the following hashing methods would Matt have to use to obtain this
digital fingerprint?
A.
SHA1
B.
MD2
C.
MD4
D.
MD5
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The key in here is that “The message is 160-bits long”
The Secure Hash Algorithm (SHA) was designed to ensure the integrity of a message.
SHA is a one-way hash that provides a hash value that can be used with an encryption protocol.
This algorithm produces a 160-bit hash value.
SHA (1 or 2) is preferred over Message Digest Algorithm.
The MD (Message Digest)Algorithm are historically as follows
MD2 hashes- 128-bit (16-byte)
MD4 hashes- 128-bit (16-byte)
MD5hashes- 128-bit (16-byte)
So of all available answers, only SHA1 can provide the required length of “160-bits long”
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