Cryptography
Cryptography is the science of using mathematics to encrypt and decrypt data. Cryptography enables you to store sensitive information or transmit it across insecure networks so that it cannot be read by anyone except the intended recipient. While cryptography is the science of securing data, cryptanalysis is the science of analyzing and breaking secure communication. Classical cryptanalysis involves an interesting combination of analytical reasoning, application of mathematical tools, pattern finding, patience, determination, and luck. Cryptanalysts are also called attackers (The Basics of Cryptography)
“There are two kinds of cryptography that will stop unauthorized personal from reading sensitive files. Cryptographic strength is measured in the time and resources it would require recovering the plaintext. The result of strong cryptography is ciphertext that is very
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Company need a secure encryption technique, which can secure all classified information over the internet. As the company’s office are located geographically it is their first priority to have secure data transfer over the internet including email and all classified information. In order to secure all this information hash-function cryptography technique will be recommended to the company to correspond over the internet with the secure channel. Hash-function will secure the whole data packet with the key as well, it can be used to authenticate the message as well. Hash0 function will not allow any hacker to sniff the data packet either it is active or passive. Secure data will be transferred with zero chance of security breach. In order to secure the keys two way authentication can be used that is RSA in order to provide more security for more classified data which can secure all passwords and secure key while corresponding with the geographically located
What is encryption? Encryption is a technological technique that protects and secures the transfer of plain text information between two sources through the use of the internet. This is done by rearranging the text using a mathematical algorithm that renovates the message into an indecipherable form, which can only be unlocked and translated with a use of a key. The strength of the encryption key is measured by its length, which is determined by the number of bits and by the type of encryption program.
RSA encryption is the foundation of public key cryptography security products. For example, credit card companies use the RSA algorithm for customers’ individual online WebPages. The credit card companies publish a big number on WebPages, which is made by big prime numbers using the RSA algorithm. Since neither computers nor people can factor such big numbers, the RSA encryption system has secured many customers’ information.
We live in a technologically saturated world. Everyone is connected to one network or another by any number of devices, so that begs the question: “Just how secure are those connections?” Earlier this year, headlines were made when a hospital in California (and several others in other states shortly thereafter) had its network system hacked; its files and patient information encrypted and held ransom. To gain access to their own files, the hospital paid the hackers for the encryption key so that they could continue providing their patients with the much needed medical care they were seeking [1]. More recently, it was reported that over 6,000 online stores had malicious code, designed to steal and store credit card information, hidden within
There are many terms which have been introduced by the field of encryption. Each of these terms are need to understand this discussion. Plaintext is the original document to be transmitted or stored on a computer system. Ciphertext is the encrypted document. ...
Encryption refers to the translation of data into secret serial characters. It is the most successful medium to achieve security of data. To access an encrypted file or data, a user must have the secret key or password to allow the entry to the data for decryption. Encrypted data is called cipher text whereas an unencrypted data is referred to as plain text.
In the worst case, an entire database of private data could be accessible to the attacker and whomever he or she chooses to share it with. To prevent the recovery of this key by repeated guessing of each possibility, called a “brute force” attack by cryptographers because there is no intelligent method behind it, the key is made relatively long. Even with the rapid throughput of computer processing, a standard computer could take many thousands of years to try all of the potential 128-bit long keys. In response to the increasing resistance of encryption designs to these brute force attacks, security researchers have identified more complex methods of attack on encryption which use the analysis of physical characteristics to obtain the encryption key (Liu, Chang, & Lee, 2012). These methods are known collectively as side channel
Data encryption refers to the process of transforming electronic information into a scrambled form that can only be read by someone who knows how to translate the code. In nowadays business world, it’s the easiest and most practical way to secure the information that we stored and processed, and it’s significant for our sensitive information. For example, as electronic commerce is popular now, the vendors and retailers must protect the customers’ personal information from hackers or competitors. They also have many business files or contracts that need to be strictly protected. Without data encryption, these important information may fall into wrong hands and be misused by others. Besides, data encryption may be used to secure sensitive information that exists on company networks, or create digital signatures, and help to authorize in business. No one should underestimate the importance of encryption. A little mistake in encryption may make sensitive information revealing, or even result in illegal and criminal accuse.
On 5 October 2009, computer equipment from a network data closet was stolen from BCBST. The items stolen were 57 unencrypted hard drives which contained over 300,000 video recording and over one million audio recordings. According to Whitman & Mattord (2010), confidentiality, integrity, and availability makes up the C.I.A triangle which is the basis of Committee on National Security model for information security, an industrial standard, (Whitman & Mattord, 2010). Confidentiality can be a synonym for encryption but also means only the people with the correct permission can access the information. One of the major security issue is the hard drives were not encrypted. The hard drives should be encrypted to prevent people from reading the information the computer. Software can be purchased which will encrypt files on hard drive with such as Folder Lock, SensiGuard, Secure IT, and more. There are open source encrypting software which are free for use which could have been used. If the hard drives were not needed, the data should hav...
A reliable environment for teams to exchange information in a secure manner may be a necessity for virtual teams; therefore, security can pose another challenge. Different types of projects may require different levels of security. A virtual private network may be necessary to ensure that information is passed securely to the desired recipients. Authentication and encryption techniques can guarantee secure transmission of electronic...
Computer science is a vast field that includes nearly everything relating to computers. Everyday there is information transmitted all over the Internet. Pictures are uploaded, transactions are made on thousands of online retail websites, and banking transactions take place everyday on the Internet. All of these transactions have created a need for secure communications. People wish to keep things like banking, medical, and political information from the eyes of unwelcome parties. This has created a need for cryptography. Cryptography is the science or study of the techniques of secret writing, especially code and cipher systems, and is used by everyone from the average citizen to the government and military.
Despite the numerous advantages offered by cloud computing, security is a big issue concerned with cloud computing. There are various security issues and concerns associated with cloud computing, among them being phishing, data loss and data privacy. There are different mitigation measures that cloud pioneers are currently using to ensure data stored in the cloud remain secure and confidential as intended. Encryption is one mitigation method used to ensure security in cloud computing. According to Krutz and Vines (2010), encryption involves coding of the data stored in the computing cloud such that hackers cannot gain access to the data. Data encryption seems to be the most effective method of ensuring security in computing (Krutz and Vines, 2010). However, it is of paramount importance to note that encrypted data is usually difficult to search or perform various calculations on it.
Encryption converts a message in such as way that its contents are hidden from unauthorized readers. It is intended to keep messages and information as a secret. Plaintext, also known as clear text, is the plain or original message, which is has not yet been encrypted. Once the message is encrypted it is then called a cipher text. This process is obviously referred as encryption. The exact opposite process is called decryption. Encryption is the most successful way to attain data security. To read an encrypted file, you must have access to a secret key or password that enables you to decrypt it. Data encryption is a means of scrambling the data so that is can only be read by the person holding the key, a password of some sort. Without the key, the cipher cannot be broken and the data remains secure. Using the key, the cipher is decrypted and the data is returned to its original value or state. Each time one desires to encrypt data, a key from the 72,000,000,000,000,000 possible key variations, is randomly produced, and used to encrypt the data. The same key must be made known to the receiver if they ar...
The most adored feature of digital wallet is that it is a hassle free mode of making an online payment.
One particular crime that could be committed by employees who use the internet at work is hacking. Hacking is one of the most well-known types of computer crimes, in this context, the term refers to the unauthorized access of another’s computer system (HG.org Staff, 2015). This means that if the employee in not allowed to use the internet, for personal use, than there is a possibility that they could get charged for such crime. Because the policy will state they do not have the authority to access the organizations computer system for personal use. In addition, they must know that all use of computers systems while at work will be monitor, including e-mails. Piracy and cyber terrorism are other crimes that one can face when using a computer
Encryption: - Data encryption is the best way to reduce risks associated with misplaced, lost or stolen data.