Mohammed NaserEnd-to-end encryption (E2EE) is a much-talked-about topic in tech. What is E2EE? How does it work? What are the advantages? Here is a glance.
End-to-end encryption is a much-talked-about topic over the past few years, especially while discussing the vulnerability of social networks and messaging apps. There is a growing need to protect communications and ensure privacy. Many platforms use it as it is a great way to protect user's data exchanges. However, what is end-to-end encryption? How does it work? What are the advantages? Here is a glance.
What is End to End encryption?
End-to-end encryption or E2EE is a secure communication method that prevents third-party data access during the transfer from one device to another. Data encryption happens on the sender's device and decryption is possible only in the intended recipient's device. To explain it further, the message or data cannot be accessed or tampered with by any entity (internet service provider (ISP), application service provider, hackers, etc.) during the data transfer.
In typical use cases, E2EE is used to ensure the utmost data security. Therefore, it is widely used in industries such as finance, communications, and healthcare. Companies also use it as a tool to comply with data privacy and security regulations.
How Does E2EE work?
End-to-end encryption works by storing the cryptographic keys for encryption and decryption the messages at the endpoints. This method is also referred to as public-key encryption or asymmetric encryption. The technique uses a public key which is to be shared with others along with a private key. Others can use the public key once shared to encrypt messages and send them to the key owner. Decryption can only happen using the corresponding private key, also known as a decryption key. To ensure the legitimacy of a public key, a certificate that is digitally signed by a recognized Certificate Authority (CA) is embedded.
Compared to other encryption systems, E2EE is unique because only the sender and the receiver (or the endpoints) are capable of decrypting and reading the transferred data.
Advantages of end-to-end encryption
E2EE offers a high level of data protection to users and comes with a range of advantages. Some of them are:
- In-transit security. As E2EE uses public-key encryption with private keys at endpoints, only users with access to the endpoint devices can read the transferred data.
- Ensures compliance. Abiding by compliance laws is essential for many industries. Some of them require encryption level data security, and E2EE can help achieve this.
- It cannot be manipulated. With E2EE, the recipient will already have the decryption key, so it isn't part of the data transfer. Even if some entity intercepts the data, they won't be able to read the data.
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