Cryptography in Cloud Computing

Cloud cryptography is the encryption used to protect data stored in the cloud. Different processes are being used in cloud cryptography to increase security and prevent data from being infiltrated, hacked or impacted by malware. Cloud providers encrypt any data they hold, allowing customers to utilize shared cloud functions safely and efficiently. Cloud cryptography protects private data without slowing information transmission.

Cloud Data Encryption Solution

Cloud cryptography is based on encryption, which entails utilizing algorithms and computers to scramble text into cipher text. Developers may turn this cipher text into plaintext using an encryption key and a string of bits. There are various types of cryptography algorithms. Data encryption can occur in the following ways:

● Pre-encrypted information synchronized with the cloud- Software pre-encrypt information before going to the cloud makes it hard to read for anybody attempting to access it.
● End-to-end encryption- Senders send messages that receivers receive, and only they may read.
● Encrypting files- When data is at rest, it's encrypted so that if an unofficial person attempts to hack it, they won't be able to read the information it contains.
● Encryption of the whole disk- When you save files to an external device, they're immediately encrypted. It's the primary way to secure computer hard disks.

Cloud Security using Cryptography

Cloud cryptography adds the same security to cloud services through end-to-end encrypted cloud storage. It can safeguard critical cloud information without impeding data transfer. Many businesses design multiple cryptographic protocols for cloud computing to balance efficiency and security. The cryptographic methods are;

Symmetric and Asymmetric Encryption in Cloud Computing

Symmetric Key Cryptographic Method- This algorithm provides data authentication and permission by encrypting data with a unique key that cannot be decoded with another. The most prominent symmetric-key algorithms used in cloud computing for cryptography are Data Encryption Standard (DES), Advanced Encryption Standard (AES) and Triple Data Encryption Standard (3DES).

Asymmetric Key Cryptographic Technique- To safeguard data on the cloud, this algorithm employs two distinct keys for encryption and decoding. Cloud computing methods include the Digital Signature Algorithm (DSA), Diffie-Helman Algorithm and RSA.


People mostly use hashing for retrieving and indexing things from databases. It also employs two distinct keys for decrypting and encrypting messages.

Benefits of Cloud Cryptography

● The users' data is confidential. This decreases hacker criminality.
● If an unapproved individual attempts to make changes, someone instantly notifies the organization. Access is allowed to people who have cryptographic keys.
● Encryption protects data from being compromised when data goes from one device to another.
● Cloud encryption enables businesses to be in control in their defense against cyberattacks and data breaches, and it has become a must in today's data-driven society.
● People who receive the data can determine if it's corrupted, allowing instant feedback and a solution to the assault.
● Encryption is among the safest methods of storing and transferring data because it adheres to companies' established constraints.

Cloud Cryptography's Drawbacks

● Cloud cryptography provides very minimal protection for data that is already moving.
● To keep encrypted data, more complex methods are required.
● The systems must be scalable enough to upgrade, which increases the associated costs.
● Overprotective measures might make data recovery challenging for enterprises.


Cloud computing enables companies to access IT services online instead of relying on physical servers. However, cloud computing services make the company vulnerable to various cyber threats and data breaches. Cloud cryptography is one of the ways a company can safeguard its data and protect itself against cyber attacks. Cloud encryption is prudent as it safeguards data after leaving the company's business IT system. This ensures the data is safe no matter where it travels through the cloud computing services. Encryption helps safeguard the data rather than the locations it's housed.

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