scholarly journals Secure Login System using MD5 and AES Attribute Based Encryption Algorithm

2020 ◽  
Vol 9 (8) ◽  
pp. 810-814
Keyword(s):  
Exchange Process ◽  
Encryption Algorithm ◽  
Symmetric Encryption ◽  
Secret Key ◽  
Aes Algorithm ◽  
Attribute Based Encryption ◽  
Financial Framework ◽  
Third Person ◽  
Message Digest ◽  
Symmetric Key

The cryptographic hash work and symmetric encryption make it hard to break Passwords. Secure secret word stockpiling is a crucial perspective in framework dependent on secret word verification, which is as yet the most broadly utilized confirmation system, notwithstanding its some security imperfections. So basically, this work is based on providing security to the systems. Right now, propose a secret word verification structure that is intended for secure secret word stockpiling and could be effectively coordinated into existing confirmation frameworks. In our system, first, the got plain secret key from a customer is worked out a cryptographic hash work. At that point; the hashed secret word is changed over into a negative secret word. At last, the negative secret word is encoded into an Encrypted Negative Password (ENP) utilizing a symmetric-key calculation, and multi-emphasis encryption could be utilized to additionally improve security. The cryptographic hash work and symmetric encryption make it hard to split passwords from ENPs.We are going to use message digest i.e MD5 and AES algorithm for this purpose. Besides, there are loads of comparing ENPs for a given plain secret key, which makes precomputation assaults infeasible. The calculation multifaceted nature investigations and examinations show that the ENP could oppose query table assault and give more grounded secret word insurance under lexicon assault. It merits referencing that the ENP doesn't present additional components other than this, the ENP could in any case oppose precomputation assaults. We are giving shading coding framework just as key logger idea secret key reason. This shading code framework is hard to break to third person. In key lumberjack the keypad of framework is mix, each time it will change the grouping of catches of 0-9 numbers,subsequent to logging the client one otp will send to client email just as the key squence of the keypad will send on client email. By utilizing this otp and key grouping client will login to framework and it will do the further exchange process. This framework will valuable in future for any financial framework or any verification reason will be utilized.

scholarly journals Implementing the Secure Protocol for Exchanging the Symmetric Key of FPGA-based Embedded Systems

2014 ◽  
pp. 45
Author(s):  
Tran Thanh ◽  
Tran Hoang Vu ◽  
Nguyen Van Cuong ◽  
Pham Ngoc Nam
Keyword(s):  
Encryption Algorithm ◽  
Prototype System ◽  
Symmetric Encryption ◽  
Secret Key ◽  
Data Confidentiality ◽  
Public Network ◽  
Secure Protocol ◽  
Symmetric Key ◽  
Asymmetric Encryption ◽  
Pass Through

Cryptographic  solution  for  protecting  data which  pass  through  an  insecure  public  network  is widely  applied.  To  ensure  the  data  confidentiality  and availability,  the  secret  key  must  be  exchanged  securely between  parties before  beginning  a  transaction  session. This paper presents a protocol to enhance the flexibility and  secrecy  of  symmetric  key  exchange  over  the Internet. Our approach uses an asymmetric encryption algorithm  to  protect  symmetric  encryption  keys  from thefts and tampers over a transmission line. In addition, this  paper  presents  a  protocol  to  ensure  the  integrity, confidentiality  of  the  symmetric  key,  and  the  freshness of  a  transaction  session.  Experimental  results  from  a prototype system based on FPGA are also revealed.

scholarly journals IMAGE ENCRYPTION FOR SECURE INTERNET TRANSFER

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
V Goutham Bharadwaja ◽  
Yashas M S ◽  
Yathendra Yadav T V ◽  
Gelvesh G
Keyword(s):  
Image Encryption ◽  
Input Image ◽  
Encryption Algorithm ◽  
Secret Key ◽  
Image Transfer ◽  
Important Data ◽  
Aes Algorithm ◽  
Encryption And Decryption ◽  
Chaos Sequence ◽  
Image Encryption Algorithm

Security is a crucial side to preserve the confidentiality of information such as pictures and text. The probability of an assailant attempting to access the image in the course of transferring process is high as assailant may get hold of important data. Therefore, encryption methods are used for securing the data. A novel image encryption algorithm that is a combination of the AES algorithm and the chaos sequence is proposed in this paper. The project will use AES for encryption and decryption of the image transfer because AES is capable of solving problem that cannot be resolved by different algorithms. The original image is transformed into cipher-image using a share secret key and this process is called encryption while the reverse of encryption process is known as decryption. This method’s sensitivity to the initial values and input image, even the tiniest changes within these values will result in significant changes in the encrypted image. We show that this approach can shield the image against different attacks exploitation using histogram analysis.

scholarly journals Enhanced Content Based Double Encryption Algorithm Using Symmetric Key Cryptography

2017 ◽  
Vol 10 (2) ◽  
pp. 345-351
Author(s):  
Junestarfield Kynshi ◽  
Deepa Jose
Keyword(s):  
Encryption Algorithm ◽  
Secret Key ◽  
Cipher Text ◽  
Xor Operation ◽  
Symmetric Key ◽  
Binary Addition ◽  
Secure Network ◽  
Symmetric Key Cryptography

This paper aims to solve the problems of the existing technique of the content based double encryption algorithm using symmetric key cryptography. Simple binary addition, folding method and logical XOR operation are used to encrypt the content of a plaintext as well as the secret key.This algorithm helps to achieve the secure transfer of data throught the network. It solved the problems of the existing algorithm and provides a better solution. The plaintext are encrypted using the above methods and produce a cipher text. The secret key is encrypted and shared through secure network and without knowing the secret key it is difficult to decipher the text. As per expected, enhanced encryption algorithm gives better result than the existing encryption algorithm.

scholarly journals Hybrid Approach of Modified AES

Cryptography ◽  
2020 ◽  
pp. 129-141
Author(s):  
Filali Mohamed Amine ◽  
Gafour Abdelkader
Keyword(s):  
Time Complexity ◽  
Input Data ◽  
Hybrid Approach ◽  
Encryption Algorithm ◽  
Advanced Encryption Standard ◽  
Aes Algorithm ◽  
Symmetric Key ◽  
Encryption Algorithms ◽  
Aes Encryption Algorithm ◽  
Modified Aes

Advanced Encryption Standard is one of the most popular symmetric key encryption algorithms to many works, which have employed to implement modified AES. In this paper, the modification that has been proposed on AES algorithm that has been developed to decrease its time complexity on bulky data and increased security will be included using the image as input data. The modification proposed itself including alteration in the mix column and shift rows transformation of AES encryption algorithm, embedding confusion-diffusion. This work has been implemented on the most recent Xilinx Spartan FPGA.

Hybrid Approach of Modified AES

2017 ◽  
Vol 7 (4) ◽  
pp. 83-93
Author(s):  
Filali Mohamed Amine ◽  
Gafour Abdelkader
Keyword(s):  
Time Complexity ◽  
Input Data ◽  
Hybrid Approach ◽  
Encryption Algorithm ◽  
Advanced Encryption Standard ◽  
Aes Algorithm ◽  
Symmetric Key ◽  
Encryption Algorithms ◽  
Aes Encryption Algorithm ◽  
Modified Aes

Advanced Encryption Standard is one of the most popular symmetric key encryption algorithms to many works, which have employed to implement modified AES. In this paper, the modification that has been proposed on AES algorithm that has been developed to decrease its time complexity on bulky data and increased security will be included using the image as input data. The modification proposed itself including alteration in the mix column and shift rows transformation of AES encryption algorithm, embedding confusion-diffusion. This work has been implemented on the most recent Xilinx Spartan FPGA.

scholarly journals Two Layer Image Encryption using Symmetric Key Algorithms

2020 ◽  
Vol 9 (7) ◽  
pp. 1056-1059
Keyword(s):  
Image Encryption ◽  
Turing Test ◽  
Secret Key ◽  
Private Key ◽  
Aes Algorithm ◽  
Cryptographic Algorithm ◽  
Cryptographic Algorithms ◽  
Layer Image ◽  
Symmetric Key ◽  
Complete Process

Security of data (text, audio, and images) is becoming more complex with the increment in its amount. In order to upsurge the reliability, the captcha (Completely Automated Public Turing test to tell Computers and Humans Apart) is used to ensure authenticity. In contrast, even these captchas can be hacked and security can be easily impeached, aim of these captchas is to identify if the user is genuine or else if it is just a robot trying to spam the system. This paper presents auxiliary hybridization of AES and Blowfish cryptographic algorithms for image encipherment and decipherment. Here, AES is using Blowfish as its subroutine where Blowfish encrypts and decrypts the AES encoded image. This is then handed to AES for second level decryption. Here the image which is to be encrypted is applied to AES algorithm, its output is further used as an input for Blowfish algorithm. Output of this doubly encrypted image is then decrypted in the reverse order of encipherment. This auxiliary hybridization adds security to the image rendering it the capacity to become useful in highly important organizations. Private key cryptography uses single secret key at both, the sender and the receiver end. Using symmetric key cryptographic algorithm for this process makes the complete process fast and more secure in comparison to when asymmetric cryptographic algorithms are used for the same purpose. Moreover, symmetric key cryptographic algorithms are more suitable for larger files and images. These also help in maintaining the confidentiality of the data.

scholarly journals Password Substantiation with Negative Password Encryption

2020 ◽  
pp. 184-190
Author(s):  
Dr. D. Hema Latha ◽  
Azmath Mubeen ◽  
Dr. D. Rama Krishna Reddy
Keyword(s):  
Hash Function ◽  
Symmetric Encryption ◽  
Secret Key ◽  
Good Resistance ◽  
Protection Mechanism ◽  
Cryptographic Hash Function ◽  
Rainbow Table ◽  
Password Protection ◽  
Symmetric Key

Secure secret password storage is an essential perspective in frameworks dependent on secret phrase Substantiation method, which is as yet the most broadly utilized Substantiation confirmation procedure, in spite of its some security imperfections. In this paper, a secret key Substantiation architecture structure is implemented that is intended for secure secret password storage and could be effectively incorporated into existing authentication frameworks. In this framework first the plain password which is received from the customer is given to cryptographic hash component for SHA-256 cryptographic process. After this, the hashed secret password is changed over into a negative secret password phrase. At last, the negative password is encoded/encrypted into an Encrypted Negative Password (ENP) utilizing a symmetric-key computation using for example, AES, and additionally to improve security, multi-repeated encryption could be utilized. The cryptographic hash function and symmetric encryption make it hard to break passwords from ENPs. Also, it provides lots of comparing ENPs for a given plain password, which makes pre-calculation intrusions (e.g., and rainbow table intrusion and query table attacks) infeasible. The complex calculations and comparisons of the algorithm provide good resistance towards intrusions and also provide stronger password protection. The proposed and implemented mechanism for Password Substantiation with Negative Password Encryption is a good secured password protection mechanism that merges cryptographic hash function, the negative password and the symmetric-key algorithm, without the requirement for extra data from the plain password.

scholarly journals Introduction Advanced Encryption Standard (AES)

2020 ◽  
Author(s):  
Joel Mathew Koshy
Keyword(s):  
Algorithm Design ◽  
Encryption Algorithm ◽  
Advanced Encryption Standard ◽  
Symmetric Encryption ◽  
Computing Power ◽  
Aes Algorithm

An introduction to AES algorithm, the algorithm design and features of AES. AES stands forAdvanced Encryption Standard.The more popular and widely adopted symmetric encryption algorithm likely to be encountered nowadays is the Advanced Encryption Standard (AES). It is found at least six time faster than triple DES. A replacement for DES was needed as its key size was too small. With increasing computing power, it was considered vulnerable against exhaustive key search attack.

scholarly journals Vector Map Encryption Algorithm Based on Double Random Position Permutation Strategy

2021 ◽  
Vol 10 (5) ◽  
pp. 311
Author(s):  
Xiaolong Wang ◽  
Haowen Yan ◽  
Liming Zhang
Keyword(s):  
Encryption Algorithm ◽  
Hyperchaotic System ◽  
Secret Key ◽  
Vector Map ◽  
Coordinate Position ◽  
Random Position ◽  
One To One ◽  
Map Objects ◽  
Geographic Information Sciences ◽  
The Relationship

Encryption of vector maps, used for copyright protection, is of importance in the community of geographic information sciences. However, some studies adopt one-to-one mapping to scramble vertices and permutate the coordinates one by one according to the coordinate position in a plain map. An attacker can easily obtain the key values by analyzing the relationship between the cipher vector map and the plain vector map, which will lead to the ineffectiveness of the scrambling operation. To solve the problem, a vector map encryption algorithm based on a double random position permutation strategy is proposed in this paper. First, the secret key sequence is generated using a four-dimensional quadratic autonomous hyperchaotic system. Then, all coordinates of the vector map are encrypted using the strategy of double random position permutation. Lastly, the encrypted coordinates are reorganized according to the vector map structure to obtain the cipher map. Experimental results show that: (1) one-to-one mapping between the plain vector map and cipher vector map is prevented from happening; (2) scrambling encryption between different map objects is achieved; (3) hackers cannot obtain the permutation key value by analyzing the pairs of the plain map and cipher map.

Sign in / Sign up

Export Citation Format

Share Document