Discription

it is a BB04 signature lib in golang

How to install the lib

First :install the GMP

This package must be compiled using cgo. It also requires the installation of GMP and PBC. During the build process, this package will attempt to include <gmp.h> and <pbc/pbc.h>, and then dynamically link to GMP and PBC.

Most systems include a package for GMP. To install GMP in Debian / Ubuntu:

sudo apt-get install libgmp-dev

For an RPM installation with YUM:

sudo yum install gmp-devel

For installation with Fink (http://www.finkproject.org/) on Mac OS X:

sudo fink install gmp gmp-shlibs

For more information or to compile from source, visit https://gmplib.org/

Second:install the PBC

To install the PBC library, download the appropriate files for your system from https://crypto.stanford.edu/pbc/download.html. PBC has three dependencies: the gcc compiler, flex (http://flex.sourceforge.net/), and bison (https://www.gnu.org/software/bison/). See the respective sites for installation instructions. Most distributions include packages for these libraries. For example, in Debian / Ubuntu:

sudo apt-get install build-essential flex bison

The PBC source can be compiled and installed using the usual GNU Build System:

./configure
make
sudo make install

After installing, you may need to rebuild the search path for libraries:

sudo ldconfig

It is possible to install the package on Windows through the use of MinGW and MSYS. MSYS is required for installing PBC, while GMP can be installed through a package. Based on your MinGW installation, you may need to add "-I/usr/local/include" to CPPFLAGS and "-L/usr/local/lib" to LDFLAGS when building PBC. Likewise, you may need to add these options toCGO_CPPFLAGSand CGO_LDFLAGS when installing this package.

and then install the golang pbc lib

go get github.com/Nik-U/pbc

Third: install the BB04 signature golang lib

download the bb04 signature lib

go get go get github.com/yunfeiyangbuaa/BB04-signature

and imprt in your code

import "github.com/yunfeiyangbuaa/BB04-signature"

How to use

Exmple

func  main(){
   msg:="hello  world"
   sys:=Sys_Start()
   _,_,_,_,prikey:=sys.BB04_KenGen()
   delta,r:=prikey.BB04_Sign(msg)
   prikey.BB04_Ver(msg,r,delta)
}

Function

func (Reg *Reg)BB04_Ver(msg string,r,delta *pbc.Element)bool
func (Reg *Reg)BB04_Sign(msg string)(*pbc.Element,*pbc.Element)
func (sys *Sys)BB04_KenGen()(*pbc.Element,*pbc.Element,*pbc.Element,*pbc.Element,*Reg)
func Sys_Start()(*Sys)