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A digital signature is a stamp on the data, which is unique and very hard to forge. A digital signature has 2 steps and creates 2 things from the security perspective.
STEP 1: To sign a document seems hashing software will break the data into just a few lines by the process called 'hashing'. These few lines are named message digest. It is not possible to modify the message digest back to its original data. Same as what we used above in cryptography hashes. This establishes whether the message has been changed between the time it was digitally signed and sent and time it was gets by the recipient.
STEP 2: Computing the digest can identify the integrity of the message but does not stop from someone intercepting it or verifying the identity of the user. This is where encryption comes into picture. Signing the code with the private key will be useful for giving that the message must have come from the user who claims to have signed it. The second step in making a digital signature includes encrypting the digest code prepared in STEP 1 with the sender's private key
Why an organization need the issue specific security policy
Why is WEP-based authentication pointless?
Assume that the RSA problem is hard, prove that the RSA encryption is secure against IND- CPA. Provide a game between an adversary A and a simulator (or challenger) B.
FRAME FORMAT AND ERROR DETECTION The changed frame format also adds CRC. If there is an error happened in frame, then it typically causes receiver to removed frame. The frame
Symmetric Encryption This encryption method makes use of same “secret key” to encipher and decipher the message and it is termed as private key encryption. This type of encrypti
INTRODUCTION TO PLANNING FOR SECURITY The creation of an information security program begins with creation and review of organization’s information security policies, standards,
Problem 1: Discuss how TWO of the following gurus have contributed to the Quality Movement, highlighting the major points of their philosophies: (a) Edward Deming (b) Jose
Question: (a) Besides privacy, what other security functions does Pretty Good Privacy (PGP) provides? (b) What is the Post Office Protocol (POP) used for? Why is it impo
what is an SSID?
on LAN,where are IP datagrams transported?
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