secp256k1随机数计算私钥公钥和地址、ECDSA签名、验证
//MasterPrivateKey://466EE30723D2441F2F51F949794258FBEB768D0B9A3A4614AA01A889A5F0AFD9//1. MasterPrivateKey >> WIFDecode:QString Check(QString hexdata){ QString SHA2561 = SHA256(hexdata); QString SHA2562 = SHA256(SHA2561); retur
