What is the difference between hash and encryption

What is Hashing — Definition, Functionality 2. What is Encryption — Definition, Functionality 3. Hashing is a mathematical operation that converts data into a unique number generated from a string of text. The output is known as message digest or hash. It is possible to perform hashing on any piece of data.

The input data can have an arbitrary length but the output is always fixed. In hashing, data goes through the hashing algorithm and provides a unique output but it is not possible to convert it back to the original data. A unique piece of a data will always produce the same hash.

Hashing is easier to perform, but it is difficult to reverse. For example, a user can create an email account by providing an email address and a password. The email provider does not save the password. It runs the password through a hashing algorithm and saves the hash of the password.

When attempting to open the email account, the email provider checks the hash of the password and the hash of the originally saved password. When the two hashes are the same, the user gets the authorization to access the email. Encryption is the process of converting the original message into an unrecognizable form so that it cannot be identified by unauthorized parties. The new form of the message is totally different from the original message.

Though widely used, the main issues being raised with the use of MD5 are its vulnerability and collisions. This algorithm got updates repeatedly to improve security flaws in the old genre. Now, SHA-2 is being used by many firms for cryptographic purposes. Tiger cipher algorithm is a faster and more efficient algorithm in comparison to the MD5 and SHA families.

It has a bit hashing system and is mostly used in computers of the new era. Tiger2 is an advanced form of this algorithm that is even more powerful than the Tiger algorithm. Message Digest Algorithm MD4 is a cryptographic hash function carrying a bit digest.

MD4 had a security flaw due to the first collision attack found in After that, few newer attacks also affected this hash function. The first version is called whirlpool-0, whereas the second version is named Whirlpool-T and the latest version is called Whirlpool. Hashing is needed at the time of comparing a huge amount of data. You can create different hash values for different data. You can compare hashes too. Encryption is the process of securing sensitive data like username, passwords, credit cards, and banking details from the reach of hackers.

A piece of unencrypted information is referred to as plain text while encrypted data is known as ciphertext. Plain text can easily be read by hackers that can be used by them for malicious purposes. Ciphertext is a scrambled text that cannot be understood by the invaders if they somehow succeed in intercepting this data. The scrambled information can solely be read by the user who has access to the security key or password to decrypt this data.

This key can be a number, character string, or a word. In asymmetric encryption, a pair of keys is used. One is called a public key that is shared among the customer and the website. The second key is the private key that is kept hidden by the administrator of the website. In this way, the info shared among the browser and the site remains safe and secure.

As the name indicates, this is an encryption technique that takes advantage of the effectiveness of both asymmetric and symmetric encryption to minimize their shortcomings. Shift Ciphers : The Shift Ciphers is a substitution cipher in which a shift of 3 letters against alphabetical order. However, this type of cipher is easy to break in modern times.

The encrypted text will look like as below:. Substitution Ciphers : Substitution Cipher as the name suggests replaces a plain text with the ciphertext with a key and in a specified way. It could be a single letter, triplets of letters, a mixture of letters. A receiver decrypts the message with the opposite substitution process to get the real message.

Transposition Ciphers : Transposition Ciphers converts plain text into a regular pattern of ciphertext. In this type of cipher, alphabets in plain text are reassembled to create ciphertext.

A simple type is columnar transposition cipher where each character in plain text is written horizontally, and the ciphertext is written vertically. For example, if you write hello world horizontally, it will look like as below and its output ciphertext will look as holewdlo lr. Polyalphabetic Ciphers : Polyalphabetic cipher works on substitution method where multiple alphabets are substituted with each other. Vigenere cipher is a popular method used in Polyalphabetic Ciphers.

Polyalphabetic cipher uses an alphabet letter instead of numeric key like A is used for key 0 while B is used for key 1 and so on. Nomenclator Ciphers : Nomenclator is a type of substitution cipher in which specific symbols are used to convert plain text into ciphertext.

This cipher uses a sheet of letter, syllable, word substitution table, and symbols are converted into numbers. Nomenclator was used in the 15th century for political correspondence and spying.

Encryption uses a specific algorithm to encode or decode the data. Encryption algorithms are also known as ciphers and are divided into two categories, symmetric and asymmetric:. Is Hashing more secure than Encryption? Select Questions. Common Encryption and Hashing Algorithms. Hashing and Encryption Use Cases. Encryption Hashing Definition A two-way function that takes in plaintext data, and turns it into undecipherable ciphertext.

A one-way method of hiding sensitive data. Using a hashing algorithm, hashing turns a plaintext into a unique hash digest that cannot be reverted to the original plaintext, without considerable effort.

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