mbx_ed25519_sign_mb8¶
Computes signature.
Syntax¶
mbx_status mbx_ed25519_sign_mb8(ed25519_sign_component* pa_sign_r[8], ed25519_sign_component* pa_sign_s[8], const int8u* const pa_msg[8], const int32u msgLen[8], const ed25519_private_key* const pa_private_key[8], const ed25519_public_key* const pa_public_key[8]);
Include Files¶
crypto_mb/ed25519.h
Parameters¶
pa_sign_r |
Array of pointers to the signature’s r- components of 32 bytes length each. |
pa_sign_s |
Array of pointers to the signature’s s- components of 32 bytes length each. |
pa_msg |
Array of pointers to the messages. |
msgLen |
Array of the message’s lengths above in bytes. |
pa_public_key |
Array of pointers to the public keys of 32 bytes length each. |
pa_private_key |
Array of pointers to the private keys of 32 bytes length each. |
Description¶
The mbx_ed25519_sign_mb8 function computes r- and s- signature components, each of which corresponds to the message specified by pa_msg[i] parameter of msgLen[i] length. The pair {private, public} keys specified by pa_private_key[i] and pa_public_key[i] parameters.
Note
mbx_ed25519_sign_mb8 is implementing so called PureEDDSA variant of EdDSA. For more information, see RFC 8032.
Return Values¶
The mbx_ ed25519_public_key_mb8 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. The result of verification is returned as status too. The MBX_STATUS_OK value means that signature is verified, else status contains MBX_STATUS_SIGNATURE_ERR value.