Need some simple explanation about Public-key cryptography

Asked By emerald hilton 0 points N/A Posted on - 03/09/2012

Hi guys, can anyone please provide me some details about “Public-key cryptography”,
  I want to know some information such as,
    1)what is it?
    2)How it works?

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• Question Category: Encryption

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Answered By asquare25 50 points N/A #94110

Need some simple explanation about Public-key cryptography

 

1.  Public-key cryptography refers to the secure and private communication between the two party using the encryption methods.

 

2.  The sending computer encrypts the document with a symmetric key, then encrypts the symmetric key with the public key of the receiving computer. The receiving computer uses its private key to decode the symmetric key. It then uses the symmetric key to decode the document.

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• Posted on - 03/10/2012
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Answered By Divina MARICIA -10 points N/A #94111

Need some simple explanation about Public-key cryptography

Public-key cryptography is a fundamental, important, and widely used technology. It's a technique, basically requires two different keys and hence also known as asymmetrical key cryptography. one key is known to public and the other is secret. Public key is used to encrypt data while decryption is done by the private key.

OR we can say that the publicly available encrypting-key is widely distributed, while on the other hand private decrypting-key is known only to the recipient. Messages are encrypted with the recipient's public key, and can be decrypted with the corresponding private key only.

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• Posted on - 10/22/2012
• Question Category: Encryption