What is a digital signature?

What is a digital signature?
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Digital signature is a method to authenticate the sender of a message. It is similar to that of signing  transactions documents when you do business with a bank. In network transactions, you can create an  equivalent of an electronic or digital signature by the way you send data.
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Which is the best provider for digital signature solutions?

Description : Which is the best provider for digital signature solutions?

Last Answer : The CoSign Digital Signature solution is a fine solution, especially for a large number of users (signers). CoSign is produced by ARX Inc. (www.arx.com) from San Francisco. CoSign allows ... that show how the solution works for various applications, file types, and environments. Hope This Helps.

A digital signature is issued by which organisation? -Technology

Description : A digital signature is issued by which organisation? -Technology

Last Answer : A digital signature is«an electronic file that is issued by a Certification Authority. (CA).

Differentiate between digital certificate and digital signature. -Technology

Description : Differentiate between digital certificate and digital signature. -Technology

Last Answer : Differentiate between a digital certificate and digital signature are as follows:Digital certificateDigital signatureDigital certificates are typically used inWebsites to increase theirtrustworthiness to its users ... digital signatures, the receivercan verify that the information is not modified.

If digital signature of any subscriber is alleged to have been affixed to an electronic record, fact must be proved- a) That such digital signature is original signature b) That such signature is original c) That signature is no digital d) That signature is digital

Description : If digital signature of any subscriber is alleged to have been affixed to an electronic  record, fact must be proved- a) That such digital signature is original signature b) That such signature is original c) That signature is no digital d) That signature is digital

Last Answer : a) That such digital signature is original signature

Digital signature defined in_____of evidence act a) Section 65 A,& 65 B b) Section 64 A,& 64 B c) Section 73A d) Section 73

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…………………………means putting information into special code so that no unauthorized person can use that information. a. Digital Signature b. Coding c. Web Directory d. Encryption

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Which one is not used as a security mechanism? a. Encryption b. Cryptography c. Wallets d. Digital signature

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Digital signature is a a. Digital id,send as an attachment to a web page/e‐mail/message b. Is used for verifying the attachments send using web c. Both a and b d. None of these

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The bank has to have the public keys of all customers in SET protocol as it has to a. check the digital signature of customers b. communicate with merchants c. communicate with merchants credit card company d. certify their keys

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Last Answer : a. check the digital signature of customers 

One of the problems with using SET protocol is a. the merchant’s risk is high as he accepts encrypted credit card b. the credit card company should check digital signature c. the bank has to keep a database of the public keys of all customers d. the bank has to keep a database of digital signatures of all customers

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In SET protocol a customer sends a purchase order a. encrypted with his public key b. in plain text form c. encrypted using Bank’s public key d. using digital Signature system

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Certification of Digital signature by an independent authority is needed because a. it is safe b. it gives confidence to a business c. the authority checks and assures customers that the public key indeed belongs to the business which claims its ownership d. private key claimed by a sender may not be actually his

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Last Answer : c. the authority checks and assures customers that the public key indeed belongs to the business which claims its ownership 

The responsibility of a certification authority for digital signature is to authenticate the a. hash function used b. private keys of subscribers c. public keys of subscribers d. key used in DES

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A hashing function for digital signature (i) must give a hashed message which is shorter than the original message (ii)must be hardware implementable (iii) two different messages should not give the same hashed message (iv) is not essential for implementing digital signature a. i and ii b. ii and iii c. i and iii d. iii and iv

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Last Answer : c. i and iii 

A digital signature is required (i) to tie an electronic message to the sender’s identity (ii)for non repudiation of communication by a sender (iii) to prove that a message was sent by the sender in a court of law (iv) in all e-mail transactions a. i and ii b. i, ii, iii c. i, ii, iii, iv d. ii, iii, iv

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A digital signature is a. a bit string giving identity of a correspondent b. a unique identification of a sender c. an authentication of an electronic record by tying it uniquely to a key only a sender knows d. an encrypted signature of a sender

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Which of the following is used to protect objects in computer system, in the absence of more complete protection schemes? (1) digital certificate (2) digital signature (3) passwords (4) tokens

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DTP computer abbreviation usually means ? DeskTop Publishing Data Type Programming Digital Transmission Protocol None Of above

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A hybrid computer a. Resembles digital computer b. Resembles analog computer c. Resembles both a digital and analog computer d. None of the above

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