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  • Government College University, Faisalabad, Pakistan
  • Information Security (CSI609)
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Summary Day by Day data is increasingly, due to rapid development of data we need to specify some methods to protect our data from unauthorized users. For this we use encryption and decryption techniques and studying different methods. These Notes cover all basic

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2021/2022 Written for academic year
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Government College University, Faisalabad, Pakistan
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Information Security (CSI609)
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Day by Day data is increasingly, due to rapid development of data we need to specify some methods to protect our data from unauthorized users. For this we use encryption and decryption techniques and studying different methods. These Notes cover all basic and advanced topic which are necessary for the systems.

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Information Security

Mamoona Jabbar

,Information Security

Topic: Hash Functions (Hashing)

, Hash Function

• It is extremely useful and appear in almost all information security applications
• It is defined as“ A hash function is a mathematical function that converts a numerical
input value into another compressed numerical value”
• The input to the hash function is of arbitrary length but output is always of fixed
length
• Values returned by a hash function are called message digest or hash values
Connected book
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Sokratis K. Katsikas, Michael Backes, Stefanos Gritzalis, Bart Preneel Information Security
Publisher: 2006 ISBN: 9783540383413 Edition: Unknown

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  • hash functions
  • hashing techniques
  • model of digital signature

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