Secria
Post-quantum secure email, private by design
Secria Overview
Secria is a cutting-edge email service designed with privacy and security at its core. It offers end-to-end encrypted email with a zero-knowledge architecture, ensuring that your messages remain private even from the service providers. Secria is built for individuals and organizations who prioritize data security and want to protect their communications from tracking, surveillance, and quantum computing threats. The service uses hybrid cryptographic protection combining ML-KEM-1024 (post-quantum) and X25519 ECDH for key exchange, along with AES-256-CBC for message encryption. With features like alias protection, no tracking, and perfect forward secrecy, Secria provides a robust solution for secure communication in an era of increasing digital threats.
Secria Screenshot
Secria Official screenshot of the tool interface
Secria Core Features
End-to-End Encryption
All emails are encrypted on your device before transmission and can only be decrypted by the intended recipient. This ensures that your messages remain confidential throughout their journey.
Zero-Knowledge Architecture
Secria's system is designed so that even the service providers cannot access your emails. All cryptographic operations occur in your browser using WebCrypto API, and your private keys never leave your device unencrypted.
Post-Quantum Cryptography
Utilizing ML-KEM-1024, a NIST-standardized post-quantum cryptographic algorithm, Secria protects your communications against future quantum computing threats and 'harvest now, decrypt later' attacks.
Hybrid Key Exchange
Combines X25519 ECDH with ML-KEM-1024 using HKDF-SHA256 key derivation for maximum security. This defense-in-depth approach ensures protection against both current and future cryptographic threats.
Perfect Forward Secrecy
Each email uses unique ephemeral keys with salt-based derivation. Compromising one message key doesn't affect your other communications, providing additional security layers.
Alias Protection
Create secure email aliases to protect your identity and stop spam at the source. This feature helps maintain your privacy while communicating with different parties.
No Tracking
Secria blocks tracking pixels and prevents senders from knowing when, where, and how you read emails, giving you complete control over your digital footprint.
Secria Use Cases
Secure Business Communication
Companies handling sensitive information can use Secria to ensure all internal and external communications remain confidential and protected from industrial espionage.
Journalist-Source Protection
Journalists can communicate securely with sources without fear of surveillance or message interception, even against future quantum computing threats.
Personal Privacy
Individuals concerned about privacy can use Secria to prevent email tracking, avoid spam, and keep personal communications truly private.
Legal and Medical Confidentiality
Professionals in sensitive fields can maintain client confidentiality with end-to-end encrypted communications that even the service provider cannot access.
How to Use Secria
Sign up for a free account on the Secria website. Choose between Free, Plus, or Pro plans depending on your storage and feature needs.
Set up your account by creating a strong password. Secria uses Argon2id with 64MB memory cost for secure password hashing.
Configure your email client or use the web interface. All cryptographic operations will be handled automatically in your browser.
Start sending encrypted emails. Your messages will be protected with hybrid post-quantum encryption automatically.
Use email aliases when needed to protect your identity and manage your communications securely.