feat: add more apis

sha256.go

@@ -0,0 +1,25 @@
+package tienyik
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+)
+
+func ChallengePassword(pwd string, chlg string) string {
+	h := sha256.New()
+	h.Write([]byte(pwd))
+	h.Write([]byte(chlg))
+	var sum [sha256.Size]byte
+	return hex.EncodeToString(h.Sum(sum[:0]))
+}
+
+func ChallengeSHA256Password(pwd string, chlg string) string {
+	h := sha256.New()
+	h.Write([]byte(pwd))
+	var sum [sha256.Size]byte
+	s := hex.EncodeToString(h.Sum(sum[:0]))
+	h.Reset()
+	h.Write([]byte(s))
+	h.Write([]byte(chlg))
+	return hex.EncodeToString(h.Sum(sum[:0]))
+}