Added tests for hashes

tests/hashes.py

@@ -0,0 +1,127 @@
+import hashlib
+import random
+import RNS
+import os
+import time
+import unittest
+
+class TestSHA256(unittest.TestCase):
+    def setUp(self):
+        self.f = RNS.Cryptography.sha256
+
+    def test_empty(self):
+        self.assertEqual(
+            self.f(''.encode("utf-8")),
+            bytes.fromhex("e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"))
+
+    def test_less_than_block_length(self):
+        self.assertEqual(
+            self.f('abc'.encode("utf-8")),
+            bytes.fromhex("ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"))
+
+    def test_block_length(self):
+        self.assertEqual(
+            self.f('a'.encode("utf-8")*64),
+            bytes.fromhex("ffe054fe7ae0cb6dc65c3af9b61d5209f439851db43d0ba5997337df154668eb"))
+
+    def test_several_blocks(self):
+        self.assertEqual(
+            self.f('a'.encode("utf-8")*1000000),
+            bytes.fromhex("cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0"))
+
+    def test_random(self):
+        max_rounds = 10000
+
+        b = 0
+        i = 0
+        ok = True
+        start = time.time()
+        print("")
+        while ok and i < max_rounds:
+            i += 1
+            rlen = random.randint(0, 1024*16)
+            rdat = os.urandom(rlen)
+            b += rlen
+            msg = rdat
+            ok = RNS.Cryptography.sha256(msg) == hashlib.sha256(msg).digest()
+            # t = RNS.Cryptography.sha256(msg)
+            # t = hashlib.sha256(msg).digest()
+            if (i%1000 == 0):
+                gbytes = round(b/1000000000,3)
+                mbps = round((b*8/1000000)/(time.time()-start), 2)
+                print(str(i)+" rounds OK, total data: "+str(gbytes)+"GB, "+str(mbps)+"mbps")
+
+        if not ok:
+            print("Failed at round "+str(i))
+        else:
+            print("SHA-256 test OK")
+
+        self.assertEqual(ok, True)
+
+
+class TestSHA512(unittest.TestCase):
+    def setUp(self):
+        self.f = RNS.Cryptography.sha512
+
+    def test_empty(self):
+        self.assertEqual(
+            self.f(''.encode("utf-8")),
+            bytes.fromhex(
+                'cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce'+
+                '47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e'))
+
+    def test_less_than_block_length(self):
+        self.assertEqual(self.f('abc'.encode("utf-8")),
+            bytes.fromhex(
+                'ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a'+
+                '2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f'))
+
+    def test_block_length(self):
+        self.assertEqual(self.f('a'.encode("utf-8")*128),
+            bytes.fromhex(
+                'b73d1929aa615934e61a871596b3f3b33359f42b8175602e89f7e06e5f658a24'+
+                '3667807ed300314b95cacdd579f3e33abdfbe351909519a846d465c59582f321'))
+
+    def test_several_blocks(self):
+        self.assertEqual(self.f('a'.encode("utf-8")*1000000),
+            bytes.fromhex(
+                'e718483d0ce769644e2e42c7bc15b4638e1f98b13b2044285632a803afa973eb'+
+                'de0ff244877ea60a4cb0432ce577c31beb009c5c2c49aa2e4eadb217ad8cc09b'))
+
+    def test_random(self):
+        max_rounds = 10000
+
+        b = 0
+        i = 0
+        ok = True
+        start = time.time()
+        print("")
+        while ok and i < max_rounds:
+            i += 1
+            rlen = random.randint(0, 1024*16)
+            rdat = os.urandom(rlen)
+            b += rlen
+            msg = rdat
+            ok = RNS.Cryptography.sha512(msg) == hashlib.sha512(msg).digest()
+            # t = RNS.Cryptography.sha512(msg)
+            # t = hashlib.sha512(msg).digest()
+            if (i%1000 == 0):
+                gbytes = round(b/1000000000,3)
+                mbps = round((b*8/1000000)/(time.time()-start), 2)
+                print(str(i)+" rounds OK, total data: "+str(gbytes)+"GB, "+str(mbps)+"mbps")
+
+        if not ok:
+            print("Failed at round "+str(i))
+        else:
+            print("SHA-512 test OK")
+
+        self.assertEqual(ok, True)
+
+
+if __name__ == '__main__':
+    sha256_suite = unittest.TestLoader().loadTestsFromTestCase(TestSHA256)
+    sha512_suite = unittest.TestLoader().loadTestsFromTestCase(TestSHA512)
+
+    all_tests = unittest.TestSuite([sha256_suite, sha512_suite])
+
+    unittest.TextTestRunner(verbosity=2).run(all_tests)