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What are the implementation of Triple DES?
TDES stands for Triple Data Encryption Standard. It is upgraded or improved version of DES (Data Encryption Standard) which is a symmetric cryptographic approach in which DES is used to each block three times which scrambles the plain text to cipher text.
TDEA provides key size of 56,112,168 bits and provide block size up to 64 bits. TDES can be performed with the support of 2 keys and from 3 keys as well. Triple DES runs three times gradual than DES, but is much safer if used properly.
The procedure for decrypting object is the similar as the procedure for encryption, other than it is executed in reverse. Like DES, data is encrypted and decrypted in 64- bit chunks. Although the input key for Data Encryption Standard is 64 bits long, the actual key used by DES is only 56 bits in length.
The least significant (right-most) bit in each byte is a parity bit, and should be set so that there are continually an odd number of 1s in each byte. These parity bits are removed, therefore the seven powerful bits of each byte are utilized, resulting in a key length of 56 bits.
This can define that the effective key strength for Triple DES is absolutely 168 bits because each of the three keys includes 8 parity bits that are not utilized during the encryption procedure.
Triple Data Encryption Algorithm is performed in this system. This system includes two components such as Employee Component and Administrator Component.
Employee Component − In this module, the employee of the organization can issue message to other employees. First the user has to login into the system user its Employee ID and thus the password will be sent to employee’s personal email id then the user have to arrive code in password box.
If anything is discovered suspicious in sent message the message will be sent to different user but the management will also be reminded about the message for more reviewing, the admin can also prospect all the users registered within the system.
Administrator Component − Administrator component is the essential element of this system with this component the administrator can simply view all the suspicious messages/mail among the different employees. Admin can look and edit the data dictionary.
The administrator can issue message to the employee and this message is encoded first with the key and then sent to the employee. Employee has to view the message by accessing the same key used at the time of encryption procedure this key shared by the administrator to the employee, the admin can also look all the users registered within the system.
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