Category

Encryption

Encryption is the cornerstone of online privacy. Discover how end-to-end encryption works, which algorithms truly protect your data, and why EchoPass uses XChaCha20-Poly1305 for your most sensitive messages.

20 articles

Encryption: the cornerstone of online privacy

Encryption protects your data by making it unreadable to anyone who doesn't hold the decryption key. From instant messaging to password managers, it has become essential for anyone concerned about their privacy online. Without encryption, your messages, files and credentials are potentially readable by your provider, host or an attacker intercepting network traffic.

XChaCha20-Poly1305: the technology behind EchoPass

EchoPass uses XChaCha20-Poly1305, one of the most resilient symmetric encryption algorithms available today, to encrypt your messages and attachments directly in your browser. The encryption key never leaves your device. Our servers only ever see encrypted data, ensuring absolute confidentiality even in the event of infrastructure compromise.

Understanding the different types of encryption

Symmetric, asymmetric, end-to-end, at-rest or in-transit encryption: each concept covers a different reality. Our articles demystify these notions with concrete examples to help you assess the actual level of protection offered by the services you use.

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