Double DES and Triple DES - GeeksforGeeks (2024)

Triple DES (3DES)

This article discusses various aspects of the Cryptography section. In this article, we are going to look at What is Triple DES. We will discuss its working and features. We will further dive into how the encryption process works in Triple DES. Then we will have a look at the advantages of Triple DES. What is Triple DES?Triple DES is an encryption

Why AES has Replaced DES, 3DES and TDEA?

The Advanced Encryption Standard (AES) has changed older encryption techniques like DES, 3DES, and TDEA because of its superior security, performance, and sturdy design. AES gives longer key lengths, making it more proof against attacks, and methods data more effectively. This transition reflects the want for more potent and greater reliable encryp

Difference between AES and DES ciphers

Advanced Encryption Standard (AES) is a highly trusted encryption algorithm used to secure data by converting it into an unreadable format without the proper key while Data Encryption Standard (DES) is a block cipher with a 56-bit key length that has played a significant role in data security. In this article, we are going to discuss the difference

Strength of Data encryption standard (DES)

Data encryption standard (DES) is a symmetric key block cipher algorithm. The algorithm is based on Feistel network. The algorithm uses a 56-bit key to encrypt data in 64-bit blocks. There are mainly two categories of concerns about the strength of Data encryption standard. They are: Concerns about the particular algorithm used. Concerns about the

Single band, Double band and Multi band Routers

Routers is a digital appliance in our daily life. The performance of a router has a great influence on our Wi-Fi online experience, so choosing a right router is very important. Router connects multiple network and forwards packets to other network. 1. Single Band Router: It is limited to just one frequency band and is also called "Wireless-N". Sin

Difference between Decimal, Float and Double in .Net

Float : It is a floating binary point type variable. Which means it represents a number in it's binary form. Float is a single precision 32 bits(6-9 significant figures) data type. It is used mostly in graphic libraries because of very high demand for processing power, and also in conditions where rounding errors are not very important. Double : It

Difference between Single Bus Structure and Double Bus Structure

It is the framework through which information as well as control signals transfer from one component or stage of a computer system to another. Here are two models that are regularly used; Single Bus Structure and the Double Bus Structure. Comparing between these two structures are useful in decision making when designing a system for a given applic

Difference between Single Precision and Double Precision

In computer systems the floating-point numbers serve a very important purpose especially in scientific computing, computer graphics, and machine learning as it is used to represent real numbers. These floating-point numbers can be defined with different precision formats which are main single precision and double precision. PrecisionBaseSignExponen

Logarithmic vs Double Logarithmic Time Complexity

Time complexity is the computational complexity that describes the amount of time it takes to run an algorithm.” Now, we know that there can be multiple ways we can solve any particular problem. But, knowing how we can solve the problem in the most efficient way is important in real-life applications. To find the efficiency of any algorithm or prob

Stop and Wait protocol, its problems and solutions

It is the simplest flow control method in which the sender will send the packet and then wait for the acknowledgement by the receiver that it has received the packet then it will send the next packet. Stop and wait protocol is very easy to implement. Total time taken to send is, Ttotal = Tt(data) + Tp + Tq + Tprocess + Tt(ack) + Tp ( since, Tq and

Analysis and Design of Combinational and Sequential circuits

1. Analysis and Design of Combinational circuits: To design of combinational circuits, the procedure involves the following steps: Find the required number of inputs and outputs and assign a symbol to each. Derive the truth table according to given specifications and function. Using the truth table, obtain simplified Boolean functions for each outp

Hardware Synchronization Algorithms : Unlock and Lock, Test and Set, Swap

Process Synchronization problems occur when two processes running concurrently share the same data or same variable. The value of that variable may not be updated correctly before its being used by a second process. Such a condition is known as Race Around Condition. There are a software as well as hardware solutions to this problem. In this articl

Advantages and Disadvantages of LAN, MAN and WAN

Pre-requisites: Difference between LAN, MAN, and WAN A computer network is a system that connects numerous independent computers in order to share information (data) and resources. In this article, we will see the advantages and disadvantages of LAN, MAN, and WAN. Advantages of LANSimple and reasonable cost: The primary benefit of the local area ne

What are the Maximum Networks and Hosts in a Class A, B and C Network?

Answer: Maximum networks and hosts in a Class A network is 16,777,216 with 16,777,214 hosts per network, Class B network contains 65,534 networks with 65,534 hosts per network, and Class C network 2,097,152 networks with 254 hosts per network.The IP address have different class namely class A, class B, class C, class D and class E. In these classes

Minimum and Maximum Length of the Header in the TCP Segment and the IP Datagram

The minimum and maximum length of the header in the TCP segment is 20 Bytes and 60 bytes respectively. The minimum and maximum length of the header in the IP datagram are 20 Bytes and 60 Bytes respectively. What is a TCP Header?The below diagram represents the TCP header. Necessary fields for TCP header 4B Source Port Destination Port 4B Sequence N

What Is a Bait-And-Switch Scam? How it Works and Examples?

Bait and Switch is an unfair sales practice involving trapping customers with an item's attractive preferences and coercing or deceiving them into buying another item that is in large amounts or a more costly one. They influence consumers by claiming to offer relatively low prices and are found in traditional and new media. Such fraudulent activiti

Difference Between AND Gate and OR Gate

AND gate and OR gate are basic logic gates. AND gate outputs 1 when all inputs are 1 else output 0. OR gate outputs 1 when at least one input is 1 else output 0. The main difference between AND gate and OR gate is that AND gate represents logical conjunction whereas OR gate represents logical disjunction. In this article we will explore difference

Calculation of address of element of 1-D, 2-D, and 3-D using row-major and column-major order

This article focuses on calculating the address of any element in a 1-Dimensional, 2-Dimensional, and 3-Dimensional array in Row major order and Column major order. Calculating the address of any element In the 1-D array:A 1-dimensional array (or single-dimension array) is a type of linear array. Accessing its elements involves a single subscript t

Addition and Product of 2 Graphs Rank and Nullity of a Graph

Graph G consists of vertices & edges. The edges are lines or arcs that connect any two nodes in the graph, and the nodes are also known as vertices. A simple Graph G = (V, E) consists of: V: Finite set of verticesE: Set of edgesExample: In the diagram below, Graph G consists of: V = { A, B, C, D}E = { {A, C}, {C, B}, {A, D}} Addition Of 2 Graph

Difference Between Store‑and‑Forward Switching and Cut‑Through Switching

Switching is a technique to transmit data between networks using switches that connect multiple LANs. Switches forward data packets based on MAC addresses, efficiently using bandwidth and reducing collisions. The three main types are: Circuit Switching: Dedicated path for the entire connection, used in traditional telephony.Message Switching: Entir

Difference between Stop and Wait protocol and Sliding Window protocol

Both the Stop and Wait protocol and the Sliding Window protocol are the techniques to the solution of flow control handling. The main difference between the Stop-and-wait protocol and the Sliding window protocol is that in the Stop-and-Wait Protocol, the sender sends one frame and waits for acknowledgment from the receiver whereas in the sliding wi

Data Structures and Algorithms | Set 3

Following questions have asked in GATE CS exam. 1. Suppose you are given an array s[1...n] and a procedure reverse (s,i,j) which reverses the order of elements in a between positions i and j (both inclusive). What does the following sequence do, where 1 < k <= n: reverse (s, 1, k); reverse (s, k + 1, n); reverse (s, 1, n); (GATE CS 2000) (a)

Data Structures and Algorithms | Set 2

Following questions have been asked in GATE CS exam. 1. Consider the function f defined below. struct item { int data; struct item * next; }; int f(struct item *p) { return ( (p == NULL) || (p->next == NULL) || (( P->data <= p->next->data) && f(p->next)) ); } For a given linked list p, the function f returns 1

Data Structures and Algorithms | Set 4

Following questions have been asked in GATE CS exam. 1. Consider the following C program segment C/C++ Code struct CellNode { struct CelINode *leftchild; int element; struct CelINode *rightChild; } int Dosomething(struct CelINode *ptr) { int value = 0; if (ptr != NULL) { if (ptr->leftChild != NULL) value = 1 + DoSomething(ptr->leftChild); if

Data Structures and Algorithms | Set 5

Following questions have been asked in GATE CS exam. 1. Consider the following C function. float f(float x, int y) { float p, s; int i; for (s=1, p=1, i=1; i < y; i ++) { p*= x/i; s+=p; } return s; } For large values of y, the return value of the function f best approximates (GATE CS 2003) a) x^y b) e^x c) ln(1 + x) d) x^x Answer (b) The functio

Data Structures and Algorithms | Set 6

Following questions have been asked in GATE CS exam. 1. The usual Θ(n^2) implementation of Insertion Sort to sort an array uses linear search to identify the position where an element is to be inserted into the already sorted part of the array. If, instead, we use binary search to identify the position, the worst case running time will (GATE

Data Structures and Algorithms | Set 7

Following questions have been asked in GATE CS 2006 exam. 1. In a binary max heap containing n numbers, the smallest element can be found in time (GATE CS 2006) (A) 0(n) (B) O(logn) (C) 0(loglogn) (D) 0(1) Answer (A) In a max heap, the smallest element is always present at a leaf node. So we need to check for all leaf nodes for the minimum value. W

Data Structures and Algorithms | Set 8

Following questions have been asked in GATE CS exam. 1. Consider the following functions Which of the following is true? (GATE CS 2000) (a) h(n) is 0(f(n)) (b) h(n) is 0(g(n)) (c) g(n) is not 0(f(n)) (d) f(n) is 0(g(n)) Answer (d) g(n) = 2√n Log n = n√n f(n) and g(n) are of same asymptotic order and following statements are true. f(n) =

Data Structures and Algorithms | Set 9

Follow questions have been asked in GATE CS exam. 1 In a heap with n elements with the smallest element at the root, the 7th smallest element can be found in time (GATE CS 2003) a) Θ(n log n) b) Θ(n) c) Θ(log n) d) Θ(1) Answer(d) The 7th smallest element must be in first 7 levels. Total number of nodes in any Binary Heap in

Data Structures and Algorithms | Set 10

Following questions have been asked in GATE CS 2007 exam. 1. The height of a binary tree is the maximum number of edges in any root to leaf path. The maximum number of nodes in a binary tree of height h is: (A) 2^h -1 (B) 2^(h-1) - 1 (C) 2^(h+1) -1 (D) 2*(h+1) Answer (C) Maximum number of nodes will be there for a complete tree. Number of nodes in