PUBLIC KEY (ASYMMETRIC) ENCRYPTION
Asymmetric Encryption is used to protect the data while in movement. Asymmetric Encryption is also known as Public Key Encryption. It uses two related keys, a public key and a private key which is not shared with anyone. This pair of keys are developed by mathematical methods which can be solved in one direction. So anyone can encode a data using the public key but only the user with a private key can decode that specific data. The length of Asymmetric Key Encryption is normally 1024 or 2048 bits. However, in Asymmetric framework the keys with smaller than 2048bits are considered as not safe to use.
Asymmetric Key Encryption methods are DSA, Diffie Hellman, RSA, Elliptic Curve and DSA. Asymmetric Encryption
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To oppose this issue the keys should be delivered by trusted software or entity.
ESCROW KEY
This type of encryption key administration is to create an extra key for decoding the data and is kept secure in escrow by an authorised 3rd party. We can also call this as a backup key or split-key. This kind of encryption method is been using to recover the data if a user forgot the password.
In July 2015, many of the world’s high ranking cryptographers published that the loss and destruction induced by adopting a key escrow system 20 years ago would be even more serious, that would be very hard to identify security weaknesses that could be misused by
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So generally the data is not readable to unauthorized users. This is the process of encrypting the data which is stored and residing on our devices.
End to End Encryption
In this process of end to end encryption, the unauthorized users such as service provider or any intermediate person can’t decrypt or read the communication between the sender and receiver. In the present day, Service Providers have access to our communication but when we deploy the end to end encryption then the service provider can intercept the communication but can’t read the content of our communication and the common example is WhatsApp messaging service. We can also secure our emails by using PGP encryption technology.
Transport Encryption
This process is a transport layer encryption that includes HTTPS using TLS/SSL which is used to encrypt and keep secure the communication between the websites and the web browser. The websites with HTTPS, enable us to transmit the information over the internet securely. Even if unauthorized user access that information, they can’t read. When the information reaches to the destination probably located in a different country, then website operator can decrypt it and store it.
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Algorithms Types in Encryption
• DES/3DES
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Pretty Good Privacy, known as the PGP, is a popular program for encryption and decryption of data, providing security services for electronic mail messages and data files.
PKC is the enabling technology for all Internet security and the increasing use of digital signatures, which are replacing traditional signatures in many contexts. However, RSA is better than PKC because RSA doesn’t need digital signature. As a result, the RSA algorithm turned out to be a perfect fit for the implementation of a practical public security system. In 1977, Martin Gardner first introduced the RSA system. After 5 years, company RSA used secure electronic security products. Nowadays many credit companies of all over the world use the RSA system or a similar system based on the RSA system.
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.
If organisation’s sensitive data and intellectual property resides on public cloud then it is strongly advisable to implement strong encryption techniques. The threat of data tampering is at its highest when data is being processed in the cloud. Essentially, this is because when data are
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.
Public key encryption is one type of cryptographic mechanism that uses asymmetric key pair to encrypt and decrypt the message which means the key used to encrypt the message differs from the key used to decrypt one. It was first published by Whitfield Diffie and Martin Hellman in the year 1976. A public-key encryption includes six main elements which are as follows-
As I mentioned before, most people believe that encryption is a very complex process when in often it is very simple. Weak encryptions such as Caesars simple substation method prove how simple encryption can really be. Strong encryption can be nearly impossible to crack. You need a special computer and it can take a long time to figure out the message. Encryption such as the PGP method, are used to keep privacy through e-mails. Overall, encryption is mainly used for privacy and protection in all types of situations.
In this research paper I want to shed light on encryption. After careful research it becomes clear that encryption has been around for centuries and used in various ways. There are two distinct methods of encryption: Public Key and Private Key. Each comes with its own set of pros and cons but Private Key is the more widely used method. Laws have been put into place to sanction the use of encryption products and devices. Information has been gathered from several different sources to also explain how encryption has impacted the past and how it will continue to shape our futures.
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.
To start off the examination of this complex topic, let’s start with the definition of encryption: a process of disguising a message so that only its legitimate recipient can understand it. There are two steps to the encryption process, the first of which is also called encryption, and the second which is decryption.
In the world, where security breaches and information stealing occurs more frequently, a service offering a secure data storage is a significant factor of a security arrangement. Encryption is simply stated as the practice of systematic information scrambling, so that it can be unscrambled later [10]. Data encryption interprets data into a different form, or cryptograph, so that a person holding a secret key (i.e. a decryption key) or password can access that data. The encrypted data is known as cipher text, whereas the unencrypted data is termed as plaintext. Presently, encryption is considered as one of the most effective data security technique and is widely used by a number of organizations for the purpose of secure and reliable transmission of data containing secret information. Asymmetric encryption and Symmetric encryption are two main types of encryption techniques.
The usage of information systems within daily business and personal affairs for the transmission of confidential or even personal identifiable information, requires the usage of such as cryptography technology to secure the information. Three major forms of cryptography for digital transmission and data storage are hybrid, asymmetric, and symmetric cryptography algorithms, that provide security to protect the integrity, confidentiality, reliability, and authenticity of data transmissions and storage. (Rouse, 2008) However, each technology possesses individual traits and characteristics best suited for types of data transmission and storage. As symmetric key uses two identical keys for transmission and decryption, asymmetric employs a private
In this era when the Internet provides essential communication between tens of millions of people and is being increasingly used as a tool for security becomes a tremendously important issue to deal with, So it is important to deal with it. There are many aspects to security and many applications, ranging from secure commerce and payments to private communications and protecting passwords. One essential aspect for secure communications is that of cryptography. But it is important to note that while cryptography is necessary for secure communications, it is not by itself sufficient. Cryptography is the science of writing in secret code and is an ancient art; In the old age people use to send encoded message which can be understand by the receiver only who know the symbolic and relative meaning of that encoded message .The first documented use of cryptography in writing dates back to circa 1900 B.C. Egyptian scribe used non-standard hieroglyphs in an inscription. After writing was invented cryptography appeared spontaneously with applications ranging from diplomatic missives to war-time battle plans. It is no surprise, then, that new forms of cryptography came soon after the widespread development of computer communications. In telecommunications and data cryptography is necessary when communicating in any untrusted medium, which includes any network, particularly the Internet [1].Within the context of any application-to-application communication, there are some security requirements, including:
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
we are using the AES also known as the (Advanced Encryption Standard) it is used by