Function FormatInputIntoSeed

lib/consensus.go:833–845

FormatInputIntoSeed() returns the 'seed data' for the VRF function `seed = lastProposerAddresses + height + round`

(lastProposerAddresses [][]byte, rootHeight, height, round uint64)

// FormatInputIntoSeed() returns the 'seed data' for the VRF function
// `seed = lastProposerAddresses + height + round`
func FormatInputIntoSeed(lastProposerAddresses [][]byte, rootHeight, height, round uint64) []byte {
	// create a string to hold the vrf input
	var input string
	// for each proposer address
	for _, address := range lastProposerAddresses {
		// add to the string using hex representation with a delimiter
		input += BytesToString(address) + "/"
	}
	// add the height and round to the end of the input
	input += fmt.Sprintf("%d/%d/%d", rootHeight, height, round)
	// hash the result
	return crypto.Hash([]byte(input))
}