Internal state for the Duplex key exchange (client-side). More...

#include <kex.h>

Data Fields
uint8_t	keyid [DKTP_KEYID_SIZE]
uint8_t	schash [DKTP_HASH_SIZE]
uint8_t	deckey [DKTP_ASYMMETRIC_DECAPSULATION_KEY_SIZE]
uint8_t	enckey [DKTP_ASYMMETRIC_ENCAPSULATION_KEY_SIZE]
uint8_t	pssl [DKTP_SECRET_SIZE]
uint8_t	pssr [DKTP_SECRET_SIZE]
uint8_t	rverkey [DKTP_ASYMMETRIC_VERIFY_KEY_SIZE]
uint8_t	sigkey [DKTP_ASYMMETRIC_SIGNING_KEY_SIZE]
uint8_t	secl [DKTP_SECRET_SIZE]
uint8_t	verkey [DKTP_ASYMMETRIC_VERIFY_KEY_SIZE]
uint64_t	expiration

Detailed Description

Internal state for the Duplex key exchange (client-side).

This structure holds the state information required by a client participating in a Duplex key exchange. It includes:

keyid: A unique key identity string (of size DKTP_KEYID_SIZE) that identifies the key exchange session.
schash: A session token hash (of size DKTP_HASH_SIZE) used to verify session integrity.
deckey: The client's asymmetric cipher private key (of size DKTP_ASYMMETRIC_DECAPSULATION_KEY_SIZE).
enckey: The client's asymmetric cipher public key (of size DKTP_ASYMMETRIC_ENCAPSULATION_KEY_SIZE).
rverkey: The remote party's asymmetric signature verification key (of size DKTP_ASYMMETRIC_VERIFY_KEY_SIZE).
sigkey: The client's asymmetric signature signing key (of size DKTP_ASYMMETRIC_SIGNING_KEY_SIZE).
secl: The derived asymmetric shared secret (of size DKTP_SECRET_SIZE) computed during key exchange.
tskl: The local tunnel key (of size DKTP_SYMMETRIC_KEY_SIZE) stored temporarily during the key exchange.
tskr: The remote tunnel key (of size DKTP_SYMMETRIC_KEY_SIZE) stored temporarily during the key exchange.
verkey: The client's local asymmetric signature verification key (of size DKTP_ASYMMETRIC_VERIFY_KEY_SIZE).
expiration: A timestamp (in seconds from the epoch) indicating when the key exchange session expires.