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How does Peerio implement end-to-end encryption?

Peerio's end-to-end encryption implements the miniLock protocol and uses the following primitives:

  • Curve25519 public key agreement over elliptic curves
  • XSalsa20 for symmetric encryption
  • Poly1305 for message authentication
  • BLAKE2s for integrity checks
  • Scrypt for memory-hard private key derivation

Public keys are managed by the Peerio network, with Peerio clients capable of out-of-band public key authentication.

You can find detailed specifications on Peerio's GitHub.

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