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The process of encoding a message into a form so that it can only be read by an authorized party is known as encryption. Encryption algorithms can be classified into two categories, Symmetric key encryption and Asymmetric key encryption. In symmetric key encryption same key is used for encryption as well as decryption. This type of encryption algorithms incur less computational cost but sharing of the key is the major problem. In Asymmetric key encryption, two keys are used: private key and public key. Public key is known to every sender. When a sender wants to send data to the receiver, the data will be encrypted using public key of the receiver. On receiving the encrypted data, the receiver will decrypt it using his private key. Learn more in: Data Security Issues and Solutions in Cloud Computing 25. Encryption algorithms are mathematical calculations used for cryptography. This technology uses cryptographic keys for both encryption of plaintext and decryption of cipher-text. The keys can be the identical (symmetric) or different (asymmetric). There may be a simple transformation to go from one key to the other. Learn more in: A Maturity Model for Understanding and Evaluating Digital Money 30. The process of converting data contained in a message into a secret code prior to transmission via public telecommunication channels to make the content incomprehensible to all but authorized recipient(s). Learn more in: Organizational Password Policy 31. Encryption is a method of protecting digital data by using one or more mathematical procedures in conjunction with a password or “key” that is used to decode the information. The encryption process converts information into a form that cannot be read by humans using an algorithm that renders the original information unreadable. Learn more in: Biosignal and Image Processing in Telemedicine 33. Encryption involves any procedure used for converting plaintext into cipher text (encrypted message) in order to prevent any but the intended recipient from reading the data. It may then be carried, for example, by secure sockets layer (SSL), a protocol that uses a secure hypertext transmission method designed to provide encrypted communications on the Internet. Learn more in: Evaluation of E-Government Web Sites 40. A process to transform plain data into unrecognizable forms, under the control of a secret encryption key. The counterpart of encryption is decryption, which requires also a secret decryption key. Learn more in: Multimedia Encryption 41. Is the process of transforming information to make it unreadable to anyone except those possessing a special key. Encryption has long been used by militaries and governments to facilitate secret communication. Encryption is now used in protecting information within ?many kinds of civilian systems, such as computers, networks, mobile telephones, and bank automatic teller machines. Learn more in: Telepsychiatry Within European E-Health 56. Is the process of encoding information. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Only authorized parties can decipher a ciphertext back to plaintext and access the original information. Encryption does not itself prevent interference but denies the intelligible content to a would-be interceptor. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. It is possible to decrypt the message without possessing the key, but, for a well-designed encryption scheme, considerable computational resources and skills are required. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients but not to unauthorized users. Historically, various forms of encryption have been used to aid in cryptography. Early encryption techniques were often utilized in military messaging. Since then, new techniques have emerged and become commonplace in all areas of modern computing. Modern encryption schemes utilize the concepts of public-key and symmetric-key. Modern encryption techniques ensure security because modern computers are inefficient at cracking the encryption. Learn more in: Securing Financial Inclusiveness Adoption of Blockchain FinTech Compliance Suggest a new Definition Proposed definitions will be considered for inclusion in the Economictimes.com Definition: The conversion of encrypted data into its original form is called Decryption. It is generally a reverse process of encryption. It decodes the encrypted information so that an authorized user can only decrypt the data because decryption requires a secret key or password. Description: One of the reasons for implementing an encryption-decryption system is privacy. As information travels over the Internet, it is necessary to scrutinise the access from unauthorized organisations or individuals. Due to this, the data is encrypted to reduce data loss and theft. Few common items that are encrypted include text files, images, e-mail messages, user data and directories. The recipient of decryption receives a prompt or window in which a password can be entered to access the encrypted data. For decryption, the system extracts and converts the garbled data and transforms it into words and images that are easily understandable not only by a reader but also by a system. Decryption can be done manually or automatically. It may also be performed with a set of keys or passwords. There are many methods of conventional cryptography, one of the most important and popular method is Hill cipher Encryption and Decryption, which generates the random Matrix and is essentially the power of security. Decryption requires inverse of the matrix in Hill cipher. Hence while decryption one problem arises that the Inverse of the matrix does not always exist. If the matrix is not invertible then the encrypted content cannot be decrypted. This drawback is completely eliminated in the modified Hill cipher algorithm. Also this method requires the cracker to find the inverse of many square matrices which is not computationally easy. So the modified Hill-Cipher method is both easy to implement and difficult to crack.
Related NewsWhich process converts plaintext into ciphertext?encryption – the process of converting plaintext to ciphertext (occasionally you may see it called 'encipherment') decryption – the process of reverting ciphertext to plaintext (occasionally 'decipherment').
Is the process of obtaining the plaintext message from a ciphertext message without knowing the keys used to perform the encryption?Terms in this set (54). cryptanalysis. the process of obtaining the plaintext message from a ciphertext message without knowing the keys used to perform the encryption.. cryptography. ... . cryptology. ... . algorithm. ... . bit stream cipher. ... . block cipher. ... . cipher/ cryptosystem. ... . ciphertext/ cryptogram.. Is the process of converting an original message into a form that is unreadable to unauthorized individuals?Encryption is the process by which a readable message is converted to an unreadable form to prevent unauthorized parties from reading it. Decryption is the process of converting an encrypted message back to its original (readable) format. The original message is called the plaintext message.
What is the process of decryption?What is Decryption. Definition: The conversion of encrypted data into its original form is called Decryption. It is generally a reverse process of encryption. It decodes the encrypted information so that an authorized user can only decrypt the data because decryption requires a secret key or password.
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Is the process of converting the ciphertext message back into plaintext so that it can be readily understand?
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