Securing Data Using Hybrid Cryptography In Cloud Computing

Cloud computing has enabled storage, management, and data access via the internet. A good example is the google cloud which is a public cloud service offered by Google. Google Cloud has made service delivery via the internet more efficient. In the current world, people use the cloud for data storage, networking, etc.

Business organizations have also majored in cloud computing since it helps in conserving workers’ energy and increases work efficiency. Organizations also store sensitive information about their operations in the cloud since it is a more secure way of data storage. Mobile cloud computing has been helpful since it is available and usable because it connects mobile to the cloud. Exchange of data between mobile and cloud computing is done via network. Therefore, the need for an encryption algorithm for securing data that takes minimum time has risen.

A hybrid cryptosystem combines the convenience of a key encapsulation scheme and a data encapsulation scheme and generates an asymmetric key from combining the two. Hybrid cryptography is efficient since it uses data encryption, preventing hackers who may intercept and alter data before reaching the intended recipient. 



Data security secures data from unauthorized use and access to prevent corruption, exposure, and data deletion. Encryption protects your data from hackers who may take advantage of the breach to access your data. Organizations use tools and technology that enable monitoring where critical data is stored and used. Data security only allows the authorized to access data. Therefore, data integrity is applied, avoiding data loss or modification by the unauthorized.

Data integrity acts as a basis in providing cloud computing services such as PaaS and IaaS. Data security is essential for security during data access. There are several types of data security such as access control, data erasure, data masking, encryption, data resiliency, etc. Cloud security avails data and applications to authorized users, thus helping take action on any intrusion quickly. Cloud web security analyses traffic on the cloud and only allows the authorized to have access. Unapproved intruders are prevented from accessing the server. 

Some of the cloud security issues are: stealing of data from a cloud application by hackers, poor data monitoring as it moves to and from cloud applications, poor control on those who access sensitive data, etc. Elements of cloud security include secure architecture, monitoring of the network, and practicing due diligence. Cloud security is also advantageous since it is flexible and highly available. 

Cryptography is the practice and study of secure communication techniques amid unwanted behavior. There are three types of cryptography: secrete key cryptography, public-key cryptography, and hash functions. An example of cryptography is; an encoded message where other characters replace letters. The information must be decoded before reading and is accessed only by someone who can restore data to its original form.

Cryptography uses secure means of communication that allow only the sender and the intended user to access information. Cryptography has master keys stored in the hardware and is used to encrypt the other keys in this system. There is two encryption, symmetric and asymmetric encryption, used for encryption and decryption.

In conclusion, a hybrid cryptosystem uses both a public-key cryptosystem and a symmetric-key cryptosystem. A hybrid cryptosystem ensures security by giving digital keys and codes, providing the message is not intercepted by intruders.

Written and curated by: Gourav Bansal, Senior Software Engineer, EPAM Systems Inc., USA. You can follow him on Linkedin

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