An implementaion of PRE with publicly verification

Proxy Re-Encryption with publicly verification, pre in short, is proposed in Signcryption of proxy re-encryption with publicly verificatio.

This implementaion is based on pbc. Thanks for pbc's contributors.

Algorithm

1. SetUp(lamda) -> public params
2. KeyGen() -> key pairs
3. RkeyGen() -> re-encryption key
4. Signc() -> original cipher
5. ReSignc() -> re-encryption cipher
6. UnSignc() -> plaintext if you want to know how it works, go to read the paper.

Usage

• pre.go implemented the core Algorithm
• ulti.go implemented how to seriliaze the data structures in pre This project is based on pbc, so you need to install pbc first. And a very important thing is you need to modify element.go or the serialization will fail!

func checkFieldsMatch(f1, f2 *C.struct_field_s) {
    if f1 != f2 {
		return
	}
    /*
	if f1 != f2 {
		panic(ErrIncompatible)
	}*/
}

Usage sample is in pre_test.go-TestSample()