Why Zero Knowledge Encryption Offers Best Cloud Security


17th April, 2017

Cloud computing has provided a convenient way to store, access and share data over the internet. However, password leaks and security breaches in the recent years have led to many apprehensions about the use of cloud services. The lack of compliance standards and stringent security policies in the cloud make your data vulnerable to many online attacks.

What Is Zero Knowledge Encryption?

Zero knowledge encryption is one of the most secure ways to protect your information stored in the public cloud. It offers complete data privacy, ensuring that no one can access your files, not even the cloud service provider. It also known as personal encryption or private key encryption.

How Does It Work?

When you upload any data to the cloud, it is encrypted on the client side. The key to decrypt the data can be accessed by the authorized user. Even the company providing the cloud services cannot access the data because the information gets encrypted before it reaches their servers. The decryption key is stored in the cloud server in a hashed format which is known only to the user.

The reliability of zero knowledge encryption is assessed on the basis of 3 principles:

  • Completeness – Assuring that the cloud service provider is properly following the security protocols.
  • Soundness – Double checking that the account can be accessed only by entering the right password.
  • Zero Knowledge – Verifying that the decryption key is known only to the user.

Advantages Of Zero Knowledge Encryption

  • It offers the highest possible control over your data stored in the cloud.
  • Zero knowledge encryption allows you to use the popular, convenient and user-friendly cloud services in the most secure way.
  • It minimizes the likelihood of a data breach as all the information is stored in an encrypted format. Even if the cloud server gets compromised, your data will still be safe because only you have the decryption key.

Limitations Of Zero Knowledge Encryption

  • In case the user forgets his account password or decryption key, there is no way to retrieve the files stored in the cloud.
  • The privacy of data becomes your responsibility. You will be held liable for any loopholes in its security or unauthorized attempts made to access the files.

For more information on zero knowledge encryption and cloud security, feel free to contact Centex Technologies. We can be reached at (855) 375 – 9654.

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