negotiateSeeds

Negotiates seeds.

int negotiateSeeds ( 
   	DG_TeeCtx *dgTeeCtx, 
)

Parameters

**Table 1** Description
Parameter	Description	Value Range	Input/Output
dgTeeCtx	KCAL context	Context initialized in section initTeeCtx.	Input

Return Values

Success: 0 is returned.
Failure: The error code is returned.

Error Codes

**Table 2** Error codes
Error Code	Value	Description	Remarks
DG_ERR_MPC_TEE_INVALID_PARAM	4501	Failed to verify the parameters.	dgTeeCtx is null. The communication API is not registered. The node information is incorrect.
DG_FAIL	1	Failed to exchange the seeds.	Failed to generate random numbers. Failed to exchange the seeds.

Dependency

dgTeeCtx depends on the context initialized in section initTeeCtx.
Before exchanging the seeds, you need to call the setTeeNodeInfos API to set the information about all nodes.
#include "data_guard_mpc.h": required header file

Example

#include  "data_guard_mpc.h" 
 
/* Call setTeeNodeInfos before calling negotiateSeeds.
dgTeeCtx is the context initialized by calling the initTeeCtx.
*/
 rv = aritOpts.negotiateSeeds(dgTee, &allNodes);

Running result: res is 0.

Call the negotiateSeeds API using the aritOpts output of the successful DG_InitArithmeticOpts call.

Parent topic: Arithmetic Operators