These techniques can be referred to as Cryptography. Any private messages can be hidden from the public or any third parties using a set of protocols. These protocols need to be analyzed and constructed in an efficient manner in order to maintain the secrecy of message being sent.
Modern Cryptography has a certain aspect that is central to it, like data integrity, authentication, confidentiality etc. In the modern world, Cryptography heavily relies upon subjects like mathematics and computer science. Algorithms for Cryptography are designed in such a way that they are hard to crack in practice by any malicious third party, also known as adversaries.
A practical approach toward cracking such an algorithm would fail; however, the theoretical approach may possibly crack such a system. Thus, any algorithm can be cited as secure if its key properties cannot be deduced with a given ciphertext. Cryptography can be categorized into two branches: Symmetric and Asymmetric. With the symmetric approach, a single key is utilized for the encryption and decryption process, i.
However, with this approach, the distribution of key was a weak link, which gives rise to adopt a novel approach.
In an asymmetric version of cryptography, sender and receiver have two keys, public and private. A private key is kept as a secret, whereas the public key is exposed to the outer world. Any set of data, which is encrypted with a public key, can only be decrypted using a corresponding private key.
When it comes to comparison, the symmetric approach is faster than the asymmetric one: for example — a digital signature utilized asymmetric cryptography to encrypt messages in hashes instead of a complete message. Encryption is one of the component of Cryptography, which is the most effective and popular data security technique. The encryption process involves transforming the data into another form, known as ciphertext, whereas the original data to be encrypted is known as plaintext.
The plaintext is supplied to an algorithm and an encryption key, which create a ciphertext. This ciphertext can be decrypted with a valid key. Data which is stored on the computer need to transferred using internet or computer network. While sending the data across a network, the integrity or security of digital data needs to be maintained; encryption plays a key role in providing data integrity. There are some core securities features that need to be maintained: data integrity, authentication, and non-repudiation.
Data integrity would ensure that content is not altered since it was being sent. And, non-repudiation would ensure the sender cannot refuse about sending the message. An encryption process is serving these primary security aspects. Like Cryptography, Encryption has two modes: symmetric and asymmetric.
The same secret key is shared between the sender and receiver while performing encryption and decryption. The asymmetric approach, on the other hand, uses two different keys, public and private. Create a free Team What is Teams? Learn more. What is the difference between "cipher" and "encryption"? Ask Question. Asked 1 year, 8 months ago. Active 1 year, 8 months ago. Viewed 2k times. Improve this question. Dariell Dariell 21 2 2 bronze badges.
You have put too many things together in one question. Have you looked these terms for official definitions? Wiki seems to answer you directly in the first paragraph en.
The short answer is there's no real difference. The Wikipedia article does a pretty good job of defining cipher en. This reminds me of a related question on crypto. SE that I answered a while ago. Add a comment. Active Oldest Votes. Improve this answer.
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