Cryptography and Encryptions,Network Security,Caesar Cipher.pdf - Security Concept Mr.Gopal Sakarkar Mr Gopal Sakarkar Today’s Agenda • Introduction

Cryptography and Encryptions,Network Security,Caesar Cipher.pdf

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Mr. Gopal Sakarkar Security Concept Mr.Gopal Sakarkar
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Mr. Gopal Sakarkar Today’s Agenda Introduction of Security Concept. Principal of Security. Classification of Security Attacks
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Mr. Gopal Sakarkar Digital Security Computer Security Network Security
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Mr. Gopal Sakarkar Need of Network Security According to FBI statistics result (2007) , up to five billion dollars is lost each year due to black holes . Loss of important data. e.g. Credit Card, ATM Card Confidential information of business have been stolen by competitors. e.g. ICICI vs HDFC Last but not least : Important data stolen from military .
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Mr. Gopal Sakarkar So, what do you mean by NS? It is vital component in information security for securing all information passed through computers network. It provide management policy for access controls protection for H/W, S/W & information in networking.
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Mr. Gopal Sakarkar Principal of Security Confidentiality Authentication Integrity Non-repudiation
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Mr. Gopal Sakarkar Confidentiality It specifies that only sender and intended recipient(s) should be able to access the contents of message. e.g.: e-mail send by person A to person B .
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Mr. Gopal Sakarkar Principal of Security Confidentiality Authentication Integrity Non-repudiation
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Mr. Gopal Sakarkar Authentication It help to establish proof of identities . e.g. : Login using Userid and Password.
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Mr. Gopal Sakarkar Principal of Security Confidentiality Authentication Integrity Non-repudiation
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Mr. Gopal Sakarkar Integrity Integrity means that changes need to be done only by authorized entities and through authorized mechanisms. e.g. Updating bank account information
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Mr. Gopal Sakarkar Principal of Security Confidentiality Authentication Integrity Non-repudiation
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Mr. Gopal Sakarkar Non-repudiation Non- repudiation does not allow the sender or receiver of a message to refuse the claim of not sending or receiving that message.
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Mr. Gopal Sakarkar Classification of Security Attacks
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