COMPUTER ETHICS AND SECURITY
CRYPTOGRAPHY AND ENCRYPTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hash Functions
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SHA-3 (Secure Hash Algorithm 3)
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SHA-2 (Secure Hash Algorithm 2)
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SHA-1 (Secure Hash Algorithm 1)
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Detailed explanation-1: -In cryptography, SHA-1 (Secure Hash Algorithm 1) is a hash function which takes an input and produces a 160-bit (20-byte) hash value known as a message digest – typically rendered as 40 hexadecimal digits.
Detailed explanation-2: -Secure Hash Algorithm (SHA-1) produces a 160-bit hash value from an arbitrary length string. Like MD5, it is also used widely in applications such as SSH, SSL, S-MIME (Secure / Multipurpose Internet Mail Extensions), and IPSec.
Detailed explanation-3: -Secure Hash Algorithm 1, or SHA-1, was developed in 1993 by the U.S. government’s standards agency National Institute of Standards and Technology (NIST). It is widely used in security applications and protocols, including TLS, SSL, PGP, SSH, IPsec, and S/MIME.
Detailed explanation-4: -6.3 SHA-1 algorithm The SHA-1 hashing algorithm function generates a 160-bit hash value.
Detailed explanation-5: -SHA-1 (short for Secure Hash Algorithm 1) is one of several cryptographic hash functions. It’s most often used to verify a file has been unaltered. This is done by producing a checksum before the file has been transmitted, and then again once it reaches its destination.