kcapi_kpp_ssgen
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Name

kcapi_kpp_ssgen — generate a shared secret

Synopsis

int32_t kcapi_kpp_ssgen (struct kcapi_handle * handle,
 const uint8_t * pubkey,
 uint32_t pubkeylen,
 uint8_t * ss,
 uint32_t sslen,
 int access);
 

Arguments

handle

[in] cipher handle

pubkey

[in] public key of peer that shall be used to generate the shared secret with

pubkeylen

[in] length of the public key buffer

ss

[out] generated shared secret

sslen

[in] length of key buffer

access

[in] kernel access type (KCAPI_ACCESS_HEURISTIC - use internal heuristic for fastest kernel access; KCAPI_ACCESS_VMSPLICE - use vmsplice access; KCAPI_ACCESS_SENDMSG - sendmsg access)

Description

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

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