HsNtorClientState

tor_proto::circuit::handshake::hs_ntor

Struct HsNtorClientState 

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pub struct HsNtorClientState { /* private fields */ }
Available on crate features hs-common and hs-client only.
Expand description

Client state for an ntor handshake.

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impl HsNtorClientState

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pub fn new<R>(rng: &mut R, service_info: HsNtorServiceInfo) -> Self
where R: RngCore + CryptoRng,

Construct a new HsNtorClientState for connecting to a given onion service described in service_info.

Once constructed, this HsNtorClientState can be used to construct an INTRODUCE1 bodies that can be sent to an introduction point.

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pub fn client_send_intro( &self, intro_header: &[u8], plaintext_body: &[u8], ) -> Result<Vec<u8>>

Return the data that should be written as the encrypted part of and the data that should be written as the encrypted part of the INTRODUCE1 message. The data that is written is:

 CLIENT_PK                [PK_PUBKEY_LEN bytes]
 ENCRYPTED_DATA           [Padded to length of plaintext]
 MAC                      [MAC_LEN bytes]
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pub fn client_receive_rend(&self, msg: &[u8]) -> Result<HsNtorHkdfKeyGenerator>

The introduction has been completed and the service has replied with a RENDEZVOUS1 message, whose body is in msg.

Handle it by computing and verifying the MAC, and if it’s legit return a key generator based on the result of the key exchange.

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Size: 360 bytes