Security Architecture - Retyc Technology
Advanced security architecture combining end-to-end encryption, zero-knowledge, and sovereignty. Discover our technical approach to confidentiality.
Our technological pillars
Post-quantum end-to-end encryption
Local encryption with hybrid keys integrating mechanisms resistant to known quantum threats. Only you and your authorized recipients have decryption keys. Reinforced protection for the lifetime of your sensitive data.
Sovereign infrastructure
Exclusive hosting in the European Union by reference operators certified HDS and ISO 27001 (Scaleway, Clever Cloud). Reduced exposure to American extraterritorial laws (Cloud Act, FISA).
Guaranteed zero-knowledge architecture
Encryption key management under your exclusive control. Technical impossibility for Retyc to access your content, metadata, or encryption keys. Cryptographic confidentiality by design.
Confidentiality by default
No advertising cookies, no third-party analytics scripts. Access to your transfers is logged for your benefit, without behavioral analysis for commercial purposes.
Multilayer cryptographic security
Protection beyond simple access control: even if permissions are compromised, your files remain unreadable without hybrid post-quantum decryption keys.
Auditable open-source cryptography
Public and auditable cryptographic implementations by the security community. Complete transparency on our encryption protocols and algorithms.
Our technical infrastructure
Our technical foundations for maximum security
Retyc is built on a European cloud infrastructure, designed to guarantee the confidentiality of your data. Discover the key elements of our technical architecture that ensure maximum protection for your sensitive content.
Architecture
Zero-knowledge architecture: confidentiality guaranteed by design
Unlike traditional transfer solutions, Retyc technically cannot access your encrypted content. Our zero-knowledge architecture guarantees that only you and your authorized recipients have the decryption keys.
Encryption before sending
Your files are encrypted locally on your device before any transfer to our servers. We never see your data in plain text.
Sovereign infrastructure
100% European technology stack and hosting by reference operators certified HDS and ISO 27001 (Scaleway, Clever Cloud). Reduced exposure to American extraterritorial laws.
Multilayer cryptographic protection
Hybrid post-quantum end-to-end encryption protects your data even if our servers are compromised or the network is intercepted.
Encryption
Beyond transit and rest encryption
End-to-end encryption (E2EE) offers superior protection to traditional transit encryption (TLS) and rest encryption. Understanding this difference is essential to evaluate real transfer security.
Transit encryption (TLS)
Standard protection during network transfer. Necessary but insufficient: your data arrives decrypted on the provider's servers.
Rest encryption (server-side)
Files are encrypted on servers, but the provider keeps the keys. They can technically access your content for maintenance, analysis, or legal request.
End-to-end encryption (E2EE)
Retyc's approach: your files are encrypted before sending and can only be decrypted by your recipients. The provider can never access content.
Ready to secure your transfers?
Join organizations and professionals who use Retyc to protect the confidentiality of their sensitive content.
Common technical questions
The answers security teams ask before adopting Retyc.
Encryption and decryption happen on the user's device. Our servers only receive encrypted blocks and hold no keys. We are therefore technically unable to read your files or their metadata, including on legal request.
Retyc relies on age, a modern encryption standard, with hybrid post-quantum recipients. Keys derived from a passphrase use scrypt. The goal is to protect your data today, but also against future decryption capabilities.
An attacker would only get encrypted blocks, without the keys to read them. End-to-end encryption protects your content even if the infrastructure is compromised or the network is intercepted.
Yes. Our cryptographic implementations are public and built on open components, verifiable by the security community. We do not practice security through obscurity.
Exclusively in the European Union, with Scaleway and Clever Cloud, on infrastructure certified HDS and ISO 27001. No dependency on a US cloud, which strongly reduces exposure to the CLOUD Act and FISA.