Baby Jubjub Key Pair

In Iden3 the public and private key pair is used to manage an identity and to authenticate in the name of an identity. In particular, Baby Jubjub is the elliptic curve used in Iden3. This curve is designed to work efficiently with zkSNARKs.

1. Initiate a Go Module

   go mod init example/iden3-tutorial
   

2. Update the required dependencies.

   go get github.com/iden3/go-iden3-crypto/babyjub
   

3. Generate a baby jubjub public key.

   package main
   
   import (
       "fmt"
       "github.com/iden3/go-iden3-crypto/babyjub"
   )
   
   // BabyJubJub key
   func main() {
   
       // generate babyJubjub private key randomly
       babyJubjubPrivKey := babyjub.NewRandPrivKey()
   
       // generate public key from private key
       babyJubjubPubKey := babyJubjubPrivKey.Public()
   
       // print public key
       fmt.Println(babyJubjubPubKey)
   }
   

Here is an example of a public key generated using Baby Jubjub:

500d43e1c3daa864995a9615b6f9e3a4fd0af018548c583773b6e422b14201a3

The executable code can be found here