get_BlindSk

Env::get_BlindSk

void get_BlindSk(Secp_scalar& res, const void* pID, uint32_t nID, const Secp_scalar& mul, uint32_t iSlot)

Return blinded secret scalar gerenerated using given ID. Blinded result is sk * mul + nonce. Nonce from iSlot slot is used. This function is used in manual creation of Schnorr signature, where mul is Schnorr signature challange e, ID is used to generate secret key, and nonce is Schnorr signature nonce, which should be used only once.

Parameters

• res : result scalar
• pID : pointer to the buffer with id data
• nID : size of the buffer
• mul : multiplier
• iSlot : iSlot

Return value

• none

Notes

• iSlot value is invalidated after this call and cannot be used afterwards

Example