이전 판 책에 추가 PDF로 내보내기 en_part3_sdkapi SDK API BS2_Version BS2_AllocateContext BS2_ReleaseContext BS2_Initialize BS2_ReleaseObject BS2_MakePinCode BS2_SetMaxThreadCount BS2_ComputeCRC16CCITT BS2_GetCardModel BS2_GetDataEncryptKey BS2_SetDataEncryptKey BS2_RemoveDataEncryptKey