# ALTS¶

This extension may be referenced by the qualified name envoy.transport_sockets.alts

Note

This extension is intended to be robust against both untrusted downstream and upstream traffic.

## extensions.transport_sockets.alts.v3.Alts¶

[extensions.transport_sockets.alts.v3.Alts proto]

Configuration for ALTS transport socket. This provides Google’s ALTS protocol to Envoy. https://cloud.google.com/security/encryption-in-transit/application-layer-transport-security/

{
"handshaker_service": "...",
"peer_service_accounts": []
}

handshaker_service

(string, REQUIRED) The location of a handshaker service, this is usually 169.254.169.254:8080 on GCE.

peer_service_accounts

(string) The acceptable service accounts from peer, peers not in the list will be rejected in the handshake validation step. If empty, no validation will be performed.