What is the difference between cipher and cryptography

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.

Name required. Email required. Please note: comment moderation is enabled and may delay your comment. There is no need to resubmit your comment. Notify me of followup comments via e-mail. Written by : Sagar Khillar. Introduction to Cryptography: Principles and Applications. Berlin, Germany: Springer, Print [3]Schmeh, Klaus. Cryptography and Public Key Infrastructure on the Internet.

Print [4]Aumasson, Jean-Philippe. Print [5]Cozzens, Margaret and Steven J. The Mathematics of Encryption. Print Articles on DifferenceBetween. User assumes all risk of use, damage, or injury. You agree that we have no liability for any damages. Author Recent Posts. Sagar Khillar. Improve this answer. Sign up or log in Sign up using Google.

Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Explaining the semiconductor shortage, and how it might end. Does ES6 make JavaScript frameworks obsolete? Featured on Meta. Encryption is NOT obfuscation!

Snap encryption is subset of obfuscation. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog.

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