diff --git a/src/tests/samples.py b/src/tests/samples.py
index 93e5ed61..e33c5f50 100644
--- a/src/tests/samples.py
+++ b/src/tests/samples.py
@@ -63,3 +63,13 @@ sample_object_expires = 1712271487
 # .. do pow and obj.to_bytes()
 sample_object_data = unhexlify(
     '00000000001be7fc00000000660f307f0000002a010248454c4c4f')
+
+sample_msg = unhexlify(
+    '0592a10584ffabf96539f3d780d776828c67da1ab5b169e9e8aed838aaecc9ed36d49ff'
+    '1423c55f019e050c66c6324f53588be88894fef4dcffdb74b98e2b200')
+sample_sig = unhexlify(
+    '304402202302475351db6b822de15d922e29397541f10d8a19780ba2ca4a920b1035f075'
+    '02205e5bba40d5f07a24c23a89ba5f01a3828371dfbb685dd5375fa1c29095fd232b')
+sample_sig_sha1 = unhexlify(
+    '30460221008ad234687d1bdc259932e28ea6ee091b88b0900d8134902aa8c2fd7f016b96e'
+    'd022100dafb94e28322c2fa88878f9dcbf0c2d33270466ab3bbffaec3dca0a2d1ef9354')
diff --git a/src/tests/test_crypto.py b/src/tests/test_crypto.py
index e68e7ee5..7be59a24 100644
--- a/src/tests/test_crypto.py
+++ b/src/tests/test_crypto.py
@@ -17,8 +17,9 @@ except ImportError:
     RIPEMD160 = None
 
 from .samples import (
-    sample_pubsigningkey, sample_pubencryptionkey,
-    sample_privsigningkey, sample_privencryptionkey, sample_ripe
+    sample_msg, sample_pubsigningkey, sample_pubencryptionkey,
+    sample_privsigningkey, sample_privencryptionkey, sample_ripe,
+    sample_sig, sample_sig_sha1
 )
 
 
@@ -65,6 +66,19 @@ class TestCrypto(RIPEMD160TestCase, unittest.TestCase):
 class TestHighlevelcrypto(unittest.TestCase):
     """Test highlevelcrypto public functions"""
 
+    def test_signatures(self):
+        """Verify sample signatures and newly generated ones"""
+        pubkey_hex = hexlify(sample_pubsigningkey)
+        # pregenerated signatures
+        self.assertTrue(
+            highlevelcrypto.verify(sample_msg, sample_sig, pubkey_hex))
+        self.assertTrue(
+            highlevelcrypto.verify(sample_msg, sample_sig_sha1, pubkey_hex))
+        # new signature
+        sig1 = highlevelcrypto.sign(sample_msg, sample_privsigningkey)
+        self.assertTrue(
+            highlevelcrypto.verify(sample_msg, sig1, pubkey_hex))
+
     def test_privtopub(self):
         """Generate public keys and check the result"""
         self.assertEqual(