start working on the frontend side

backend/internal/auth/token.go

@@ -0,0 +1,20 @@
+package auth
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+)
+
+// HashToken creates a cryptographic hash of the token for storage
+// Uses SHA-256 to hash the token before storing in the database
+func HashToken(token string) string {
+	hash := sha256.Sum256([]byte(token))
+	return hex.EncodeToString(hash[:])
+}
+
+// VerifyTokenHash verifies if a token matches a stored hash
+func VerifyTokenHash(token, storedHash string) bool {
+	computedHash := HashToken(token)
+	return computedHash == storedHash
+}
+