1KCAPI_KPP_SSGEN(3)           Programming Interface          KCAPI_KPP_SSGEN(3)
2
3
4

NAME

6       kcapi_kpp_ssgen - generate a shared secret
7

SYNOPSIS

9       ssize_t kcapi_kpp_ssgen(struct kcapi_handle * handle,
10                               const uint8_t * pubkey, size_t pubkeylen,
11                               uint8_t * ss, size_t sslen, int access);
12

ARGUMENTS

14       handle
15           [in] cipher handle
16
17       pubkey
18           [in] public key of peer that shall be used to generate the shared
19           secret with
20
21       pubkeylen
22           [in] length of the public key buffer
23
24       ss
25           [out] generated shared secret
26
27       sslen
28           [in] length of key buffer
29
30       access
31           [in] kernel access type (KCAPI_ACCESS_HEURISTIC - use internal
32           heuristic for fastest kernel access; KCAPI_ACCESS_VMSPLICE - use
33           vmsplice access; KCAPI_ACCESS_SENDMSG - sendmsg access)
34

DESCRIPTION

36       return number of bytes returned by the shared secret generation
37       operation upon success; a negative errno-style error code if an error
38       occurred
39

AUTHOR

41       Stephan Mueller <smueller@chronox.de>
42           Author.
43

45libkcapi Manual 1.3.1            January 2022               KCAPI_KPP_SSGEN(3)
Impressum