package main
/*
#cgo CFLAGS:-I../include
#cgo LDFLAGS:-lbls -lbls_if -lmcl -lgmp -lgmpxx -L../lib -L../../mcl/lib -lstdc++ -lcrypto
#include "bls_if.h"
*/
import "C"
import "fmt"
import "runtime"
import "unsafe"
func BlsInit() {
C.blsInit()
}
type BlsId struct {
self *C.blsId
}
func destroyBlsId(p *BlsId) {
C.blsIdDestroy(p.self)
}
func newBlsId() *BlsId {
p := new(BlsId)
p.self = C.blsIdCreate()
runtime.SetFinalizer(p, destroyBlsId)
return p
}
func (id *BlsId) String() string {
buf := make([]byte, 1024)
n := C.blsIdGetStr(id.self, (*C.char)(unsafe.Pointer(&buf[0])), C.size_t(len(buf)))
if n == 0 {
return "err"
}
return string(buf[:n])
}
func (id *BlsId) setStr(s string) {
buf := []byte(s)
err := C.blsIdSetStr(id.self, (*C.char)(unsafe.Pointer(&buf[0])), C.size_t(len(buf)))
if err > 0 {
fmt.Println("BlsId:SetStr", err)
}
}
func (id *BlsId) set(v []uint64) {
C.blsIdSet(id.self, (*C.uint64_t)(unsafe.Pointer(&v[0])))
}
func main() {
fmt.Println("init")
BlsInit()
{
id := newBlsId()
id.set([]uint64{4, 3, 2, 1})
fmt.Println("id :", id)
id2 := newBlsId()
id2.setStr(id.String())
fmt.Println("id2:", id2)
}
fmt.Println("create secret key")
sec := C.blsSecretKeyCreate()
defer C.blsSecretKeyDestroy(sec)
C.blsSecretKeyInit(sec)
C.blsSecretKeyPut(sec)
fmt.Println("create public key")
pub := C.blsPublicKeyCreate()
defer C.blsPublicKeyDestroy(pub)
C.blsSecretKeyGetPublicKey(sec, pub)
C.blsPublicKeyPut(pub)
sign := C.blsSignCreate()
defer C.blsSignDestroy(sign)
msg := []byte("Hello bls")
fmt.Println("sign message")
C.blsSecretKeySign(sec, sign, (*C.char)(unsafe.Pointer(&msg[0])), C.size_t(len(msg)))
C.blsSignPut(sign)
fmt.Println("verify:", C.blsSignVerify(sign, pub, (*C.char)(unsafe.Pointer(&msg[0])), C.size_t(len(msg))))
}
