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Difference between Encryption and Hashing

Difference between Encryption and Hashing

Have you ever heard the terms encryption and hashing before, but didn’t know what they meant? In this blog post, we will explain the difference between encryption and hashing, and provide examples of each. We’ll also discuss when it is appropriate to use each technique. Stay tuned!

What is Encryption?

Encryption is a technique used to protect data or communication from unauthorized access. Encryption converts data into a form that can only be read by authorized individuals, making it more difficult for unauthorized users to access the information. Encryption is often used in conjunction with other security measures, such as firewalls and authentication, to provide additional protection for data. Encryption can be used to protect both private and public data and is especially important for ensuring the security of sensitive information.

There are a variety of encryption algorithms available, and the level of security provided by encryption depends on the strength of the algorithm used. Encryption is an effective tool for protecting data, but it is important to remember that no security measure is perfect. Encrypted data can still be accessed by unauthorized individuals if they are able to obtain the encryption key, so it is important to keep keys secure and to choose strong encryption algorithms.

What is Hashing?

Hashing is a process of encoding a message using an algorithm. The original message is known as the preimage, while the encoded message is known as the hash. Hashing is used in computer security to protect data from tampering. A hash function takes an input of any length and produces an output of a fixed length. This output is known as the hash value or simply the hash. Hash functions are one-way, meaning that it is not possible to reverse the hashing process to retrieve the original message. Hashes are typically represented as a sequence of hexadecimal numbers. Hashing is used in many applications, such as storing passwords and verifying file integrity.

Difference between Encryption and Hashing

Encryption and hashing are two common security measures used to protect data. Encryption is a process of transforming readable data into an unreadable format, using a key. The key is known only to the sender and receiver, which makes it difficult for anyone else to access the data. Hashing is a process of turning data into a fixed-length string of characters, using a mathematical function.

The hash function is public, which means that anyone can generate a hash from the data. However, it is very difficult to reverse the hashing process and obtain the original data. As such, hashing can be used to verify that data has not been modified. Both encryption and hashing are effective ways to protect data. However, encryption is typically used for confidential information, while hashing is often used for sensitive data that does not need to be kept secret.


We’ve looked at the difference between encryption and hashing, two cryptographic methods used to protect data. While they both achieve security goals, they do so in different ways. Hashing is a one-way function, meaning it is easy to compute the hash of a message but difficult to reverse engineer the original message from the hash. This makes it ideal for verifying the integrity of data. Encryption, on the other hand, is a two-way function; it can be used to both encrypt and decrypt messages. It is more commonly used for secure communication purposes. When deciding which method to use, you need to consider what you are trying to achieve with your data security strategy.

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