Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
A reverse process of encryption is known as Decryption. It is a procedure of transforming Cipher Text into Plain Text. Cryptography need the decryption technique at the receiver side to acquire the original message from non-readable message (Cipher Text).Decryption operate by using the opposite conversion algorithm used to encode the information. The same key is needed to return the encrypted data to its initial state.In decryption, the system extracts and transform the garbled information and change it to texts and images that are simply comprehensible not only by the reader but also by the system. Decryption can be accomplished manually ... Read More
Encryption is a procedure of coding data which can be a file or mail message into cipher text a form unreadable without a decoding key in order to avoid anyone except the pre-determined receiver from reading that information.Decryption is the reverse procedure of transforming encrypted data to its original unencoded form, plaintext. A key in cryptography is a large order of bits used by encryption/ decryption algorithms.In encryption, it is based on the type of encryption, information can be displayed as several numbers, letters, or symbols. Those who work in cryptography fields create it their job, to encrypt data or ... Read More
Data Encryption Standard (DES) is the block cipher which creates a fixed-length string of plaintext bits and change it through a sequence of complicated operations into another cipher text bit string of the similar length. It is a symmetric encryption technique which defines both sender and receiver need a shared key to encrypt and decrypt the information.The problem of this approach is that if the key is known to others the complete conversation is negotiated. The 3DES block size is 64 bits and also need a key to customize the conversion, so that decryption can only be implemented by those ... Read More
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 ... Read More
Suspicious email detection is a type of mailing system where suspicious users are recognized by deciding the keywords used by him. The suspicious keywords are discovered in the mails which are sent by the user. All the blocked mails are tested by the management and recognize the users who have sent such mails.Suspicious mail detection is a type of system by which suspected users are identified by recognizing the types of words. Words can be as hijacking, explosion which can be discovered in their mails which they send to others. These type of mails are tested by the admin and ... Read More
Triple DES Algorithm used by admin to encode the messages sent to the users or sent some warnings about the different user’s suspicious event. In this research, suspicious words dictionary can be used to find the suspicious words which are not generally used in the normal messaging or communication.There are some modules of Triple DES which are as follows −Admin Login − In this project, admin can get in the username and password to validate himself to access the account panel modules.User Login − In this module, users can get in their username and password to authenticate themselves to access ... Read More
Triple DES is also called a TDES. It is a symmetric key block cipher, defining that the same key can be used to encrypt and decrypt information in fixed-length set of bits known as blocks. It is known as "Triple DES" because it uses the DES cipher three times when encrypting data.When DES was originally invented in 1976, it need a key size of 56 bits, which was an adequate level of security to oppose brute-force attacks. Because then, computers have become economical and more strong, allowing the 3DES algorithm to use DES three times successively, essentially stopping brute-force on ... Read More
The Double DES uses two example of DES cipher for encryption and two units of reverse DES cipher for decryption. Each unit of DES cipher needs multiple key for encryption which enhance the size of the key (112 bit) creating it more secure. But in the double DES can be destroyed by known plaintext attack known as meet-in-themiddle attack.Given a plaintext P and two encryption keys K1 and K2, ciphertext C is produced as C = Ek2(Ek1, (m)) decryption needed that the keys be used in reverse order −P = Dk1(Dk2, (C))A Meet-in-the-Middle (MitM) Attack is a type of cryptanalytic ... Read More
Data Encryption Standard (DES) is a block cipher algorithm that takes plain text in blocks of 64 bits and transform them to ciphertext utilizing keys of 48 bits. It is a symmetric key algorithm. It can define that the same key can be used for encrypting and decrypting data.The design of DES was invented by IBM in 1994. There are some tests on DES have proved that it satisfies some of the required element as claimed. There are some design issued which are as follows −S-Boxes − S-Boxes is a procedure that accepts the 48-bit input from the XOR operation ... Read More
Suppose we have an array A with n elements and another value d. A farmer has arranged n haybale piles on the firm. The ith pile contains A[i] hay-bales. Every day a cow can choose to move one hay-bale in any pile to an adjacent pile. The cow can do this on a day otherwise do nothing. The cow wants to maximize the hay-bales in first pile in d days. We have to count the maximum number of hay-bales on the first pile.So, if the input is like d = 5; A = [1, 0, 3, 2], then the output ... Read More