diff --git a/hutool-crypto/src/test/java/cn/hutool/crypto/asymmetric/Issue3925Test.java b/hutool-crypto/src/test/java/cn/hutool/crypto/asymmetric/Issue3925Test.java
new file mode 100644
index 000000000..fc52d2676
--- /dev/null
+++ b/hutool-crypto/src/test/java/cn/hutool/crypto/asymmetric/Issue3925Test.java
@@ -0,0 +1,13 @@
+package cn.hutool.crypto.asymmetric;
+
+import org.bouncycastle.crypto.DataLengthException;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class Issue3925Test {
+	@Test
+	void sm2Test() {
+		final SM2 sm2 = new SM2();
+		Assertions.assertThrows(DataLengthException.class, ()->sm2.encrypt("", KeyType.PublicKey));
+	}
+}