lnd.xprv/fuzz/brontide/random_init_encrypt.go

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// +build gofuzz
package brontidefuzz
import (
"bytes"
"math"
)
// Fuzz_random_init_encrypt is a go-fuzz harness that encrypts arbitrary data
// with the initiator.
func Fuzz_random_init_encrypt(data []byte) int {
// Ensure that length of message is not greater than max allowed size.
if len(data) > math.MaxUint16 {
return 0
}
// This will return brontide machines with random keys.
initiator, responder := getBrontideMachines()
// Complete the brontide handshake.
completeHandshake(initiator, responder)
var b bytes.Buffer
// Encrypt the message using WriteMessage w/ initiator machine.
if err := initiator.WriteMessage(data); err != nil {
nilAndPanic(initiator, responder, err)
}
// Flush the encrypted message w/ initiator machine.
if _, err := initiator.Flush(&b); err != nil {
nilAndPanic(initiator, responder, err)
}
return 1
}