Bring back pbkdf2

1 files changed, 25 insertions, 0 deletions

diff --git a/internal/hole/hole.go b/internal/hole/hole.go
new file mode 100644
index 0000000..4824459
--- /dev/null
+++ b/internal/hole/hole.go
@@ -0,0 +1,25 @@
+package hole
+
+import (
+	"crypto/rand"
+	_ "embed"
+	"encoding/binary"
+	"strings"
+)
+
+var (
+	//go:embed wordlist.txt
+	wordListString string
+	wordList       = strings.Split(strings.TrimSuffix(wordListString, "\n"), "\n")
+)
+
+func New() string {
+	const nWords = 10
+	buf := make([]byte, 2*nWords)
+	rand.Read(buf)
+	words := make([]string, nWords)
+	for i := range words {
+		words[i] = wordList[binary.NativeEndian.Uint16(buf[2*i:])&0x1fff]
+	}
+	return strings.Join(words, "-")
+}