github.com/Psiphon-Labs/psiphon-tunnel-core@v2.0.28+incompatible/psiphon/common/sss/sss_test.go (about)

     1  package sss
     2  
     3  import (
     4  	"fmt"
     5  )
     6  
     7  func Example() {
     8  	secret := "well hello there!" // our secret
     9  	n := byte(30)                 // create 30 shares
    10  	k := byte(2)                  // require 2 of them to combine
    11  
    12  	shares, err := Split(n, k, []byte(secret)) // split into 30 shares
    13  	if err != nil {
    14  		fmt.Println(err)
    15  		return
    16  	}
    17  
    18  	// select a random subset of the total shares
    19  	subset := make(map[byte][]byte, k)
    20  	for x, y := range shares { // just iterate since maps are randomized
    21  		subset[x] = y
    22  		if len(subset) == int(k) {
    23  			break
    24  		}
    25  	}
    26  
    27  	// combine two shares and recover the secret
    28  	recovered := string(Combine(subset))
    29  	fmt.Println(recovered)
    30  
    31  	// Output: well hello there!
    32  }