Technical
What Is AES-256 Encryption?
Quick Answer
AES-256 is the Advanced Encryption Standard with a 256-bit key — the same encryption used by the US military, banks, and governments worldwide. It's considered unbreakable.
Detailed Explanation
AES (Advanced Encryption Standard) is a symmetric encryption algorithm adopted by the US government in 2001 after a rigorous selection process. The '256' refers to the key size: 256 bits, meaning 2^256 possible keys. To put this in perspective, there are roughly 2^270 atoms in the observable universe — meaning there are more possible AES-256 keys than you could assign to every atom. Even the world's fastest supercomputers would need billions of years to brute-force a single AES-256 key. zkChat uses AES-256 in GCM mode, which adds authentication — not only is the data encrypted, but any tampering is detected.
Related Questions
How Does End-to-End Encryption Work?
Your device encrypts the message before sending it. Only the recipient's device can decrypt it. The server in between only sees scrambled data it cannot read.
What Is Military-Grade Encryption?
Military-grade encryption typically refers to AES-256, the same encryption standard approved by the NSA for TOP SECRET information and used by militaries worldwide.
Is End-to-End Encryption Really Secure?
Yes. Properly implemented E2EE using algorithms like AES-256-GCM is mathematically secure — breaking it would take longer than the age of the universe with current technology.
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