Unverified50% confidenceFactExact time
croc relies on a relay server to coordinate connections, attempts to establish a direct peer-to-peer connection via TCP hole punching, and if direct connection fails, relays the transfer through the relay server while maintaining end-to-end encryption.
1
Sources
50%
Confidence
Long-term
Relevance
7/22/2026
First Seen
Sources
Related Claims
Unverifiedcroc uses end-to-end encryption to prevent the relay server from decrypting file contents.74% similarUnverifiedSTCP (Secret TCP) is a common secure transport protocol in intranet penetration tools that adds a key verification mechanism on top of standard TCP connections.68% similarUnverifiedcroc uses the PAKE (Password-Authenticated Key Exchange) protocol to negotiate encryption keys.66% similarUnverifiedWhen UDP is completely blocked by a firewall, Tailscale ensures connectivity through DERP (Designated Encrypted Relay for Packets) relay servers, and end-to-end encryption prevents the relay servers from decrypting data content.62% similar
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