NETWORK SECURITY
DIGITAL SIGNATURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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hash function used
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private keys of subscribers
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public keys of subscribers
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key used in DES
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Detailed explanation-1: -The CA does this by validating (through various processes), the identity of the owner of the public key. Once it has done this it will bind the public key to a digital certificate and sign it using its private key to attest authenticity.
Detailed explanation-2: -In public key authentication, the scheme is based on public key cryptography, using cryptosystems where encryption and decryption are done using separate keys, and it is not feasible to derive the decryption key from the encryption key. Each user creates a public/private key pair for authentication purposes.
Detailed explanation-3: -Digital signatures work through public key cryptography’s two mutually authenticating cryptographic keys. For encryption and decryption, the person who creates the digital signature uses a private key to encrypt signature-related data. The only way to decrypt that data is with the signer’s public key.