Image default
Staff Articles

Cryptography and its Types

Cryptography is used for user authentication and safeguarding data against theft and modification. How do you strengthen your brand by securing data against hacking?

Nowadays, computing systems have a close relationship with humans. Every application in practically every domain uses computing techniques. However, you might wonder how businesses protect their data and how your banking activities are kept private. “Cryptography” is the answer to each of these questions.

Because of the rising concern over losing one’s privacy, consumer security is at its highest level. Technology has simplified our lives to a great extent providing a fundamental level of confidence for our data. It is crucial to keep up with evolving technology and learn how to protect our data. Fundamentally, encryption is significant because it protects data and information from illegal access and upholds secrecy.

In this article, you will learn- what cryptography is, its types, and how you can use it to protect your data against theft and modification. Read on!

What is cryptography?

Cryptography is a technique for encrypting data and communications using codes so that only the intended audience can read and comprehend them. To keep information secret, written or generated codes must be created. Data can be encrypted and communicated using cryptography without worrying about unwanted parties decoding it back into a readable format. The technique encodes data into an unreadable format to an unauthorized user.

Brands can use cryptography for user authentication and safeguarding data against theft and modification.
Cryptography is used in information security on numerous levels. The data cannot be read without a decryption key. The information keeps its integrity while being stored and also while in transit. It implies that it is possible to confirm both the sender and the delivery of communication. 

Types of Cryptography

  • Symmetric-key Cryptography

Data is encrypted using symmetric cryptography, often known as secret-key cryptography, using only one key. The sender uses this key to encrypt plaintext before sending the cipher text to the recipient. The receiver uses the same key to decode the message and retrieve the plain text on the opposite side. Symmetric cryptography is the simplest kind of encryption because it uses the same key for encryption and decryption. When data has to be accessible again, a person with access to the secret key can decrypt the data using the cryptographic algorithm, which uses the key in a cipher to encrypt the data. Although secret key cryptography can be used on both in-transit and at-rest data, it is typically exclusively utilized on the latter due to the risk of compromise posed by disclosing the secret to the message’s recipient.

  • Public-Key Cryptography

Data is encrypted using two keys in public-key cryptography, also known as asymmetric cryptography. Two related keys—the public key and the private key—are employed in public-key cryptography. While the paired private key of a public key stays secret, the public key can be freely transmitted. For encryption, the private key is utilized, and for decryption, the public key. In contrast to symmetric cryptography, when one key is used to encrypt a message, a different key must be used to decode it. The public key cannot be deduced from the private key, while the private key can be derived from the public key due to the mathematical relationship between the keys. The owner should be the only one to possess the private key and it should not be shared. Any other entity is eligible to receive the public key.

  • Hash Functions

Hash functions are one-way, irreversible operations that safeguard data at the expense of preventing the recovery of the original message. This algorithm makes no use of a key. It is impossible to reconstruct the plain text’s contents after computing a fixed-length hash value based on the plain text. Many operating systems also make use of hash algorithms for securing passwords. A given string can be changed into a string of a specific length by hashing. For each input, a good hashing algorithm will provide different outputs. The only method to decipher a hash is to attempt every potential input until you obtain the same hash. Hash can be used in certificates and for hashing data (like passwords). 


Every industry uses cryptography to secure data and guard against hacking to protect passwords, and verify banking transactions. Nowadays, a variety of new cryptographic algorithms are created and cracked and as a result, it is crucial to be constantly informed of information security threats and take the necessary safeguards to minimize their impact There are several methods for protecting data, but cryptography is one of the most effective. It enables the user to safeguard their data from exposure to the outside world or to anyone who might use it for nefarious purposes.

To summarise, in this age of digital revolution, cryptography is more important than ever. Despite a significant increase in people’s access to digital information in recent years, both individuals and organizations are alarmed by the possibility of cyber threats and cyberattacks. So it becomes crucial to not only understand cryptography protocols but also to use them regularly.

Related posts

What Tech Companies are upto to Honor Pride Month 2021?

AI TechPark

Three Things You Should Know About Quantum Computing

AI TechPark

Deep Learning Applications for Computer Vision

AI TechPark