diff --git a/nip04/nip04.go b/nip04/nip04.go index b3c10e6..1923cd6 100644 --- a/nip04/nip04.go +++ b/nip04/nip04.go @@ -8,7 +8,6 @@ import ( "encoding/base64" "encoding/hex" "fmt" - mrand "math/rand" "strings" "github.com/btcsuite/btcd/btcec/v2" @@ -56,18 +55,12 @@ func Encrypt(message string, key []byte) (string, error) { // add padding base := len(plaintext) - extra := 0 - var padding int - if base < 100 { - // add some random padding to this message since it is too small - extra = mrand.Intn(230) // the total padding will be padding + extra, which can't be more than 256 - } // this will be a number between 1 and 16 (including), never 0 - padding = block.BlockSize() - (base+extra)%block.BlockSize() + padding := block.BlockSize() - base%block.BlockSize() // encode the padding in all the padding bytes themselves - padtext := bytes.Repeat([]byte{byte(padding + extra)}, padding+extra) + padtext := bytes.Repeat([]byte{byte(padding)}, padding) paddedMsgBytes := append(plaintext, padtext...)