Visible to Intel only — GUID: GUID-6C917F1D-7381-46B8-86A4-703D9D837158
Visible to Intel only — GUID: GUID-6C917F1D-7381-46B8-86A4-703D9D837158
mbx_nistp256/384/521_ecdsa_sign_complete
Completes computation of the ECDSA signature.
Syntax
mbx_status mbx_nistp256_ecdsa_sign_complete_mb8(int8u* pa_sign_r[8], int8u* pa_sign_s[8], const int8u* const pa_msg[8], const int64u* const pa_sgn_rp[8], const int64u* const pa_inv_eph_skey[8], const int64u* const pa_reg_skey[8], int8u* pBuffer);
mbx_status mbx_nistp256_ecdsa_sign_complete_ssl_mb8(int8u* pa_sign_r[8], int8u* pa_sign_s[8], const int8u* const pa_msg[8], const BIGNUM* const pa_sgn_rp[8], const BIGNUM* const pa_inv_eph_skey[8], const BIGNUM* const pa_reg_skey[8], int8u* pBuffer);
mbx_status mbx_nistp384_ecdsa_sign_complete_mb8(int8u* pa_sign_r[8], int8u* pa_sign_s[8], const int8u* const pa_msg[8], const int64u* const pa_sgn_rp[8], const int64u* const pa_inv_eph_skey[8], const int64u* const pa_reg_skey[8], int8u* pBuffer);
mbx_status mbx_nistp384_ecdsa_sign_complete_ssl_mb8(int8u* pa_sign_r[8], int8u* pa_sign_s[8], const int8u* const pa_msg[8], const BIGNUM* const pa_sgn_rp[8], const BIGNUM* const pa_inv_eph_skey[8], const BIGNUM* const pa_reg_skey[8], int8u* pBuffer);
mbx_status mbx_nistp521_ecdsa_sign_complete_mb8(int8u* pa_sign_r[8], int8u* pa_sign_s[8], const int8u* const pa_msg[8], const int64u* const pa_sgn_rp[8], const int64u* const pa_inv_eph_skey[8], const int64u* const pa_reg_skey[8], int8u* pBuffer);
mbx_status mbx_nistp521_ecdsa_sign_complete_ssl_mb8(int8u* pa_sign_r[8], int8u* pa_sign_s[8], const int8u* const pa_msg[8], const BIGNUM* const pa_sgn_rp[8], const BIGNUM* const pa_inv_eph_skey[8], const BIGNUM* const pa_reg_skey[8], int8u* pBuffer);
Include Files
crypto_mb/ec_nistp256.h
crypto_mb/ec_nistp384.h
crypto_mb/ec_nistp521.h
Parameters
pa_sign_r |
Array of pointers to the resulting r-components of signature vectors. |
pa_sign_s |
Array of pointers to the resulting s-components of the signature. |
pa_msg |
Array of pointers to the message representatives are being signed. |
pa_inv_eph_skey |
Array of pointers to the inversion of the ephemeral private key. |
pa_reg_skey |
Array of pointers to the signer’s regular private key. |
pBuffer |
Pointer to the work buffer. |
Description
Each function targets at the elliptic curve (EC) specified in thename (nistp256, nistp384 or nistp521). The function completescomputation of the signature (step 3 of ECDSA operation) usingregular private keys specified by the pa_reg_skey parameter, convertsr- and s- components of the signature into big endian byte stringsand stores them in locations specified by pa_sign_r and pa_sign_sparameters.
The work buffer specified by the pBuffer parameteris not currently used and can be NULL.
Return Values
The mbx_nistp256/384/521_ecdsa_sign_complete functions return 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.