mbx_sm2_ecpublic_key¶
Computes a public key.
Syntax¶
mbx_status mbx_sm2_ecpublic_key_mb8(int64u* pa_pubx[8], int64u* pa_puby[8], int64u* pa_pubz[8], const int64u* const pa_skey[8], int8u* pBuffer);
mbx_status mbx_sm2_ecpublic_key_ssl_mb8(BIGNUM* pa_pubx[8], BIGNUM* pa_puby[8], BIGNUM* pa_pubz[8], const BIGNUM* const pa_skey[8], int8u* pBuffer);
Include Files¶
crypto_mb/ec_sm2.h
Parameters¶
pa_pubx |
Array of pointers to the vectors of computed public key x-coordinates. |
pa_puby |
Array of pointers to the vectors of computed public key y-coordinates. |
pa_pubz |
Array of pointers to the vectors of computed public key z-coordinates. |
pa_skey |
Array of pointers to the vectors of private keys. |
pBuffer |
Pointer to the work buffer. |
Description¶
The function computes public keys using private keys specified by the
pa_skey parameter. If z-coordinate of computed public is required
(pa_pubz is not NULL), then computed public keys are stored using
projective coordinates. If pa_pubz is NULL, then computed public
keys are stored using affine coordinates.
The work buffer specified by the pBuffer parameteris not currently used
and can be NULL.
Note
The function above has own “twin” with “_ssl” in the name. The only difference in comparison with mbx_sm2_ecpublic_key() is representation of the parameters. mbx_sm2_ecpublic_key_ssl() functions use BIGNUM datatype instead of vector.
Return Values¶
The mbx_sm2_ecpublic_key() function returns the status that indicates whether the operation completed successfully or not. The status value of 0 indicates that all operations completed successfully. The error condition can be analyzed by the MBX_GET_STS() call.