End-to-end encryption explained

When you chat with your friend or a loved one, the messages you enter travel a long way across the network. A lot can happen along the way. End to end encryption is one way to protect your data, but is it right for everyone?

What does encryption mean?
Encryption is the encryption of a message so that it can be decoded only by the intended address. Encryption software transforms your email into a string called ciphertext that is indecipherable. Even if someone gets hold of your message, unless they have the key, they will not be able to access the encrypted data. It is nearly impossible to crack military-grade encryption because it uses 256-bit keys to create possible combinations of 2 ^ 256. There are no supercomputers yet that in a reasonable amount of time could crack such a code.

Symmetric encryption types Symmetric encryption is when the same private encryption key is used by a sender and a recipient to decrypt and encode an encrypted message.

The main drawback is the sharing of the key between the parties. An interceptor can snatch the key and decode the message unless a safe tunnel is built.

Asymmetric encryption Asymmetric encryption is a more sophisticated and more efficient approach of data protection. In this case, your message is encrypted by two keys–a public key and a private key. For both sender and receiver, the public key is the same, while the private key is unique to each party. It means that even the two communication participants do not know the private key of each other.

In this case, the message can only be opened by a person with private and public keys. If an email falls into the wrong hands in transit, even if they have the public key, an interceptor will not be able to access it. It can only be deciphered by a person with the specific private key.

Although this type of encryption is more advanced than symmetric encryption, both endpoints are still left unprotected. When cyber criminals hack any of the participating devices and steal both keys, the data may be retained.

What’s the end of encryption?
End to End End Encryption (E2EE) encrypts your message between two endpoints throughout your entire journey. When passing via intermediate servers, it remains encrypted and can not be reached by either the service provider, the ISP, or any third party.
Your email will be encrypted without E2EE once it hits a mid-point server to decrypt it. Therefore, the messages may be seen by an individual running such databases (e.g. an ISP). If you are using a VPN, however, this kind of communication is much easier as a VPN service encrypts your data and switches your Address. Then you can comfortably and privately pass all the midpoints.
You can implement E2EE encryption yourself, but this is a very complicated procedure. Otherwise, just make sure you have this function in the software or service you use and enable it to communicate safely. When you treat sensitive information such as financial data or personal details, it is particularly important.
E2EE plays a major role in stable instant messaging applications. While many secure messaging applications are available with E2EE, it is not commonly used. Many programs, such as Telegram and FB messenger, do not have it allowed by default, so you need to change it on your own.
Often, E2EE is useful to secure your e-mail contact. Check our tips on how to send encrypted email and see our list of the best email accounts in the world.
E2E encryption can sometimes be called client-side encryption in backup or P2P systems. It encrypts the data only, though, until it hits a service provider that holds the files. In this case, zero-knowledge encryption is much safer as it encrypts your files so they can only be decrypted with your account or device. A service provider can’t access them, so you won’t be able to access your information if you forget your key or lose your phone.
Possible threats E2EE does not protect the endpoints, so someone who hacks either of them can get a public or a private key or simply snatch the data through your app; Some messaging systems might not encrypt their backup data. WhatsApp provides E2EE, for instance, but does not encrypt backup messages on Google Drive servers that it stores. It means your backup log can be accessed by Google. Also ensure that E2EE is enforced across the board by an app; Backdoor assault is a covert authentication bypass. Only trojans, viruses or malicious software can do it. Hackers could therefore intercept your device and access your data.
E2EE remains one of the most secure tools to ensure your privacy and security given these possible vulnerabilities. Whenever possible, we recommend using E2EE apps.
However, you should not forget to use a reliable VPN service to constantly update your antivirus and antimalware software to protect yourself online, such as avoiding suspicious attachments, emails, downloads, etc. Although a VPN does not use E2EE software, via secure midpoint servers and encrypted traffic it provides security.

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