22020273955

Committed 14 Feb 2026 04:02PM UTC coverage: 90.059% (-0.005%) from 90.064%

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Merge pull request #5328 from randombit/jack/test-predicates

Change Test::Result integer and bool predicates to be specifically named

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/src/tests/test_modes.cpp

/*
* (C) 2014,2015,2017 Jack Lloyd
* (C) 2016 Daniel Neus, Rohde & Schwarz Cybersecurity
* (C) 2018 Ribose Inc
*
* Botan is released under the Simplified BSD License (see license.txt)
*/

#include "tests.h"

#if defined(BOTAN_HAS_CIPHER_MODES)
   #include <botan/cipher_mode.h>
   #include <botan/exceptn.h>
   #include <botan/hex.h>
   #include <botan/rng.h>
#endif

namespace Botan_Tests {

#if defined(BOTAN_HAS_CIPHER_MODES)

class Cipher_Mode_Tests final : public Text_Based_Test {
   public:
      Cipher_Mode_Tests() : Text_Based_Test("modes", "Key,Nonce,In,Out") {}

      std::vector<std::string> possible_providers(const std::string& algo) override {
         return provider_filter(Botan::Cipher_Mode::providers(algo));
      }

      Test::Result run_one_test(const std::string& algo, const VarMap& vars) override {
         const std::vector<uint8_t> key = vars.get_req_bin("Key");
         const std::vector<uint8_t> nonce = vars.get_req_bin("Nonce");
         const std::vector<uint8_t> input = vars.get_req_bin("In");
         const std::vector<uint8_t> expected = vars.get_req_bin("Out");

         Test::Result result(algo);

         const std::vector<std::string> providers = possible_providers(algo);

         if(providers.empty()) {
            result.note_missing("cipher mode " + algo);
            return result;
         }

         for(auto&& provider_ask : providers) {
            auto enc = Botan::Cipher_Mode::create(algo, Botan::Cipher_Dir::Encryption, provider_ask);

            auto dec = Botan::Cipher_Mode::create(algo, Botan::Cipher_Dir::Decryption, provider_ask);

            if(!enc || !dec) {
               if(enc) {
                  result.test_failure("Provider " + provider_ask + " has encrypt but not decrypt");
               }
               if(dec) {
                  result.test_failure("Provider " + provider_ask + " has decrypt but not encrypt");
               }
               result.note_missing(algo);
               return result;
            }

            result.test_sz_eq(
               "enc and dec granularity is the same", enc->update_granularity(), dec->update_granularity());

            result.test_sz_gt("update granularity is non-zero", enc->update_granularity(), 0);

            result.test_sz_eq(
               "enc and dec ideal granularity is the same", enc->ideal_granularity(), dec->ideal_granularity());

            result.test_sz_gt(
               "ideal granularity is at least update granularity", enc->ideal_granularity(), enc->update_granularity());

            result.confirm("ideal granularity is a multiple of update granularity",
                           enc->ideal_granularity() % enc->update_granularity() == 0);

            try {
               test_mode(result, algo, provider_ask, "encryption", *enc, key, nonce, input, expected, this->rng());
            } catch(Botan::Exception& e) {
               result.test_failure("Encryption tests failed", e.what());
            }

            try {
               // NOLINTNEXTLINE(*-suspicious-call-argument) intentionally swapping ptext and ctext arguments here
               test_mode(result, algo, provider_ask, "decryption", *dec, key, nonce, expected, input, this->rng());
            } catch(Botan::Exception& e) {
               result.test_failure("Decryption tests failed", e.what());
            }
         }

         return result;
      }

   private:
      static void test_mode(Test::Result& result,
                            const std::string& algo,
                            const std::string& provider,
                            const std::string& direction,
                            Botan::Cipher_Mode& mode,
                            const std::vector<uint8_t>& key,
                            const std::vector<uint8_t>& nonce,
                            const std::vector<uint8_t>& input,
                            const std::vector<uint8_t>& expected,
                            Botan::RandomNumberGenerator& rng) {
         const bool is_cbc = (algo.find("/CBC") != std::string::npos);
         const bool is_ctr = (algo.find("CTR") != std::string::npos);

         result.test_eq("name", mode.name(), algo);

         // Some modes report base even if got from another provider
         if(mode.provider() != "base") {
            result.test_eq("provider", mode.provider(), provider);
         }

         result.test_is_false("mode not authenticated", mode.authenticated());

         const size_t update_granularity = mode.update_granularity();
         const size_t min_final_bytes = mode.minimum_final_size();

         // FFI currently requires this, so assure it is true for all modes
         result.test_sz_gt("buffer sizes ok", mode.ideal_granularity(), min_final_bytes);

         result.test_is_false("key not set", mode.has_keying_material());

         result.test_throws<Botan::Invalid_State>("Unkeyed object throws", [&]() {
            Botan::secure_vector<uint8_t> bad(min_final_bytes);
            mode.finish(bad);
         });

         if(is_cbc) {
            // can't test equal due to CBC padding

            if(direction == "encryption") {
               result.test_sz_lte("output_length", mode.output_length(input.size()), expected.size());
            } else {
               result.test_sz_gte("output_length", mode.output_length(input.size()), expected.size());
            }
         } else {
            // assume all other modes are not expanding (currently true)
            result.test_sz_eq("output_length", mode.output_length(input.size()), expected.size());
         }

         result.confirm("default nonce size is allowed", mode.valid_nonce_length(mode.default_nonce_length()));

         // Test that disallowed nonce sizes result in an exception
         static constexpr size_t large_nonce_size = 65000;
         result.test_is_false("Large nonce not allowed", mode.valid_nonce_length(large_nonce_size));
         result.test_throws<Botan::Invalid_Argument>("Large nonce causes exception",
                                                     [&mode]() { mode.start(nullptr, large_nonce_size); });

         Botan::secure_vector<uint8_t> garbage = rng.random_vec(update_granularity);
         Botan::secure_vector<uint8_t> ultimate_garbage = rng.random_vec(min_final_bytes);

         // Test to make sure reset() resets what we need it to
         result.test_throws<Botan::Invalid_State>("Cannot process data (update) until key is set",
                                                  [&]() { mode.update(garbage); });
         result.test_throws<Botan::Invalid_State>("Cannot process data (finish) until key is set",
                                                  [&]() { mode.finish(ultimate_garbage); });

         mode.set_key(mutate_vec(key, rng));

         if(!is_ctr) {
            result.test_throws<Botan::Invalid_State>("Cannot process data until nonce is set",
                                                     [&]() { mode.update(garbage); });
         }

         mode.start(mutate_vec(nonce, rng));
         mode.reset();

         if(!is_ctr) {
            result.test_throws<Botan::Invalid_State>("Cannot process data until nonce is set (after start/reset)",
                                                     [&]() { mode.update(garbage); });
         }

         mode.start(mutate_vec(nonce, rng));
         mode.update(garbage);

         mode.reset();

         mode.set_key(key);
         result.test_is_true("key is set", mode.has_keying_material());
         mode.start(nonce);

         Botan::secure_vector<uint8_t> buf;

         buf.assign(input.begin(), input.end());
         mode.finish(buf);
         result.test_eq(direction + " all-in-one", buf, expected);

         // additionally test update() and process() if possible
         if(input.size() >= update_granularity + min_final_bytes) {
            const size_t max_blocks_to_process = (input.size() - min_final_bytes) / update_granularity;
            const size_t bytes_to_process = max_blocks_to_process * update_granularity;

            // test update, 1 block at a time
            if(max_blocks_to_process > 1) {
               Botan::secure_vector<uint8_t> block(update_granularity);
               buf.clear();

               mode.start(nonce);
               for(size_t i = 0; i != max_blocks_to_process; ++i) {
                  block.assign(input.data() + i * update_granularity, input.data() + (i + 1) * update_granularity);

                  mode.update(block);
                  buf += block;
               }

               Botan::secure_vector<uint8_t> last_bits(input.data() + bytes_to_process, input.data() + input.size());
               mode.finish(last_bits);
               buf += last_bits;

               result.test_eq(direction + " update-1", buf, expected);
            }

            // test update with maximum length input
            buf.assign(input.data(), input.data() + bytes_to_process);
            Botan::secure_vector<uint8_t> last_bits(input.data() + bytes_to_process, input.data() + input.size());

            mode.start(nonce);
            mode.update(buf);
            mode.finish(last_bits);

            buf += last_bits;

            result.test_eq(direction + " update-all", buf, expected);

            // test process with maximum length input
            mode.start(nonce);
            buf.assign(input.begin(), input.end());

            const size_t bytes_written = mode.process(buf.data(), bytes_to_process);

            result.test_sz_eq("correct number of bytes processed", bytes_written, bytes_to_process);

            mode.finish(buf, bytes_to_process);
            result.test_eq(direction + " process", buf, expected);
         }

         mode.clear();
         result.test_is_false("key is not set", mode.has_keying_material());

         result.test_throws<Botan::Invalid_State>("Unkeyed object throws after clear", [&]() {
            Botan::secure_vector<uint8_t> bad(min_final_bytes);
            mode.finish(bad);
         });
      }
};

BOTAN_REGISTER_SMOKE_TEST("modes", "cipher_modes", Cipher_Mode_Tests);

class Cipher_Mode_IV_Carry_Tests final : public Test {
   public:
      std::vector<Test::Result> run() override {
         std::vector<Test::Result> results;
         results.push_back(test_cbc_iv_carry());
         results.push_back(test_cfb_iv_carry());
         results.push_back(test_ctr_iv_carry());
         return results;
      }

   private:
      static Test::Result test_cbc_iv_carry() {
         Test::Result result("CBC IV carry");

   #if defined(BOTAN_HAS_MODE_CBC) && defined(BOTAN_HAS_AES)
         std::unique_ptr<Botan::Cipher_Mode> enc(
            Botan::Cipher_Mode::create("AES-128/CBC/PKCS7", Botan::Cipher_Dir::Encryption));
         std::unique_ptr<Botan::Cipher_Mode> dec(
            Botan::Cipher_Mode::create("AES-128/CBC/PKCS7", Botan::Cipher_Dir::Decryption));

         const std::vector<uint8_t> key(16, 0xAA);
         const std::vector<uint8_t> iv(16, 0xAA);

         Botan::secure_vector<uint8_t> msg1 =
            Botan::hex_decode_locked("446F6E27742075736520706C61696E20434243206D6F6465");
         Botan::secure_vector<uint8_t> msg2 = Botan::hex_decode_locked("49562063617272796F766572");
         Botan::secure_vector<uint8_t> msg3 = Botan::hex_decode_locked("49562063617272796F76657232");

         enc->set_key(key);
         dec->set_key(key);

         enc->start(iv);
         enc->finish(msg1);
         result.test_eq("First ciphertext", msg1, "9BDD7300E0CB61CA71FFF957A71605DB6836159C36781246A1ADF50982757F4B");

         enc->start();
         enc->finish(msg2);

         result.test_eq("Second ciphertext", msg2, "AA8D682958A4A044735DAC502B274DB2");

         enc->start();
         enc->finish(msg3);

         result.test_eq("Third ciphertext", msg3, "1241B9976F73051BCF809525D6E86C25");

         dec->start(iv);
         dec->finish(msg1);

         dec->start();
         dec->finish(msg2);

         dec->start();
         dec->finish(msg3);
         result.test_eq("Third plaintext", msg3, "49562063617272796F76657232");

   #endif
         return result;
      }

      static Test::Result test_cfb_iv_carry() {
         Test::Result result("CFB IV carry");
   #if defined(BOTAN_HAS_MODE_CFB) && defined(BOTAN_HAS_AES)
         std::unique_ptr<Botan::Cipher_Mode> enc(
            Botan::Cipher_Mode::create("AES-128/CFB(8)", Botan::Cipher_Dir::Encryption));
         std::unique_ptr<Botan::Cipher_Mode> dec(
            Botan::Cipher_Mode::create("AES-128/CFB(8)", Botan::Cipher_Dir::Decryption));

         const std::vector<uint8_t> key(16, 0xAA);
         const std::vector<uint8_t> iv(16, 0xAB);

         Botan::secure_vector<uint8_t> msg1 = Botan::hex_decode_locked("ABCDEF01234567");
         Botan::secure_vector<uint8_t> msg2 = Botan::hex_decode_locked("0000123456ABCDEF");
         Botan::secure_vector<uint8_t> msg3 = Botan::hex_decode_locked("012345");

         enc->set_key(key);
         dec->set_key(key);

         enc->start(iv);
         enc->finish(msg1);
         result.test_eq("First ciphertext", msg1, "a51522387c4c9b");

         enc->start();
         enc->finish(msg2);

         result.test_eq("Second ciphertext", msg2, "105457dc2e0649d4");

         enc->start();
         enc->finish(msg3);

         result.test_eq("Third ciphertext", msg3, "53bd65");

         dec->start(iv);
         dec->finish(msg1);
         result.test_eq("First plaintext", msg1, "ABCDEF01234567");

         dec->start();
         dec->finish(msg2);
         result.test_eq("Second plaintext", msg2, "0000123456ABCDEF");

         dec->start();
         dec->finish(msg3);
         result.test_eq("Third plaintext", msg3, "012345");
   #endif
         return result;
      }

      static Test::Result test_ctr_iv_carry() {
         Test::Result result("CTR IV carry");
   #if defined(BOTAN_HAS_CTR_BE) && defined(BOTAN_HAS_AES)

         std::unique_ptr<Botan::Cipher_Mode> enc(
            Botan::Cipher_Mode::create("AES-128/CTR-BE", Botan::Cipher_Dir::Encryption));
         std::unique_ptr<Botan::Cipher_Mode> dec(
            Botan::Cipher_Mode::create("AES-128/CTR-BE", Botan::Cipher_Dir::Decryption));

         const std::vector<uint8_t> key = Botan::hex_decode("2B7E151628AED2A6ABF7158809CF4F3C");
         const std::vector<uint8_t> iv = Botan::hex_decode("F0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF");

         enc->set_key(key);
         dec->set_key(key);

         const std::vector<std::string> exp_ciphertext = {
            "EC",
            "8CDF",
            "739860",
            "7CB0F2D2",
            "1675EA9EA1",
            "E4362B7C3C67",
            "73516318A077D7",
            "FC5073AE6A2CC378",
            "7889374FBEB4C81B17",
            "BA6C44E89C399FF0F198C",
         };

         for(size_t i = 1; i != 10; ++i) {
            if(i == 1) {
               enc->start(iv);
               dec->start(iv);
            } else {
               enc->start();
               dec->start();
            }

            Botan::secure_vector<uint8_t> msg(i, 0);
            enc->finish(msg);

            result.test_eq("Ciphertext", msg, exp_ciphertext[i - 1].c_str());

            dec->finish(msg);

            for(const uint8_t b : msg) {
               result.test_u8_eq("Plaintext zeros", b, 0);
            }
         }
   #endif
         return result;
      }
};

BOTAN_REGISTER_TEST("modes", "iv_carryover", Cipher_Mode_IV_Carry_Tests);

#endif

}  // namespace Botan_Tests

1	/*
2	* (C) 2014,2015,2017 Jack Lloyd
3	* (C) 2016 Daniel Neus, Rohde & Schwarz Cybersecurity
4	* (C) 2018 Ribose Inc
5	*
6	* Botan is released under the Simplified BSD License (see license.txt)
7	*/
8
9	#include "tests.h"
10
11	#if defined(BOTAN_HAS_CIPHER_MODES)
12	#include <botan/cipher_mode.h>
13	#include <botan/exceptn.h>
14	#include <botan/hex.h>
15	#include <botan/rng.h>
16	#endif
17
18	namespace Botan_Tests {
19
20	#if defined(BOTAN_HAS_CIPHER_MODES)
21
22	class Cipher_Mode_Tests final : public Text_Based_Test {	×
23	public:
24	Cipher_Mode_Tests() : Text_Based_Test("modes", "Key,Nonce,In,Out") {}	2✔
25
26	std::vector<std::string> possible_providers(const std::string& algo) override {	1,246✔
27	return provider_filter(Botan::Cipher_Mode::providers(algo));	1,246✔
28	}
29
30	Test::Result run_one_test(const std::string& algo, const VarMap& vars) override {	1,246✔
31	const std::vector<uint8_t> key = vars.get_req_bin("Key");	1,246✔
32	const std::vector<uint8_t> nonce = vars.get_req_bin("Nonce");	1,246✔
33	const std::vector<uint8_t> input = vars.get_req_bin("In");	1,246✔
34	const std::vector<uint8_t> expected = vars.get_req_bin("Out");	1,246✔
35
36	Test::Result result(algo);	1,246✔
37
38	const std::vector<std::string> providers = possible_providers(algo);	1,246✔
39
40	if(providers.empty()) {	1,246✔
41	result.note_missing("cipher mode " + algo);	×
42	return result;	×
43	}
44
45	for(auto&& provider_ask : providers) {	2,492✔
46	auto enc = Botan::Cipher_Mode::create(algo, Botan::Cipher_Dir::Encryption, provider_ask);	1,246✔
47
48	auto dec = Botan::Cipher_Mode::create(algo, Botan::Cipher_Dir::Decryption, provider_ask);	1,246✔
49
50	if(!enc \|\| !dec) {	1,246✔
51	if(enc) {	×
52	result.test_failure("Provider " + provider_ask + " has encrypt but not decrypt");	×
53	}
54	if(dec) {	×
55	result.test_failure("Provider " + provider_ask + " has decrypt but not encrypt");	×
56	}
57	result.note_missing(algo);	×
58	return result;	×
59	}
60
61	result.test_sz_eq(	1,246✔
62	"enc and dec granularity is the same", enc->update_granularity(), dec->update_granularity());	1,246✔
63
64	result.test_sz_gt("update granularity is non-zero", enc->update_granularity(), 0);	1,246✔
65
66	result.test_sz_eq(	1,246✔
67	"enc and dec ideal granularity is the same", enc->ideal_granularity(), dec->ideal_granularity());	1,246✔
68
69	result.test_sz_gt(	1,246✔
70	"ideal granularity is at least update granularity", enc->ideal_granularity(), enc->update_granularity());	1,246✔
71
72	result.confirm("ideal granularity is a multiple of update granularity",	1,246✔
73	enc->ideal_granularity() % enc->update_granularity() == 0);	1,246✔
74
75	try {	1,246✔
76	test_mode(result, algo, provider_ask, "encryption", *enc, key, nonce, input, expected, this->rng());	2,492✔
77	} catch(Botan::Exception& e) {	×
78	result.test_failure("Encryption tests failed", e.what());	×
79	}	×
80
81	try {	1,246✔
82	// NOLINTNEXTLINE(*-suspicious-call-argument) intentionally swapping ptext and ctext arguments here
83	test_mode(result, algo, provider_ask, "decryption", *dec, key, nonce, expected, input, this->rng());	2,492✔
84	} catch(Botan::Exception& e) {	×
85	result.test_failure("Decryption tests failed", e.what());	×
86	}	×
87	}	2,492✔
88
89	return result;
90	}	6,230✔
91
92	private:
93	static void test_mode(Test::Result& result,	2,492✔
94	const std::string& algo,
95	const std::string& provider,
96	const std::string& direction,
97	Botan::Cipher_Mode& mode,
98	const std::vector<uint8_t>& key,
99	const std::vector<uint8_t>& nonce,
100	const std::vector<uint8_t>& input,
101	const std::vector<uint8_t>& expected,
102	Botan::RandomNumberGenerator& rng) {
103	const bool is_cbc = (algo.find("/CBC") != std::string::npos);	2,492✔
104	const bool is_ctr = (algo.find("CTR") != std::string::npos);	2,492✔
105
106	result.test_eq("name", mode.name(), algo);	2,492✔
107
108	// Some modes report base even if got from another provider
109	if(mode.provider() != "base") {	2,492✔
110	result.test_eq("provider", mode.provider(), provider);	×
111	}
112
113	result.test_is_false("mode not authenticated", mode.authenticated());	2,492✔
114
115	const size_t update_granularity = mode.update_granularity();	2,492✔
116	const size_t min_final_bytes = mode.minimum_final_size();	2,492✔
117
118	// FFI currently requires this, so assure it is true for all modes
119	result.test_sz_gt("buffer sizes ok", mode.ideal_granularity(), min_final_bytes);	2,492✔
120
121	result.test_is_false("key not set", mode.has_keying_material());	2,492✔
122
123	result.test_throws<Botan::Invalid_State>("Unkeyed object throws", [&]() {	2,492✔
124	Botan::secure_vector<uint8_t> bad(min_final_bytes);	2,492✔
125	mode.finish(bad);	2,492✔
126	});	×
127
128	if(is_cbc) {	2,492✔
129	// can't test equal due to CBC padding
130
131	if(direction == "encryption") {	658✔
132	result.test_sz_lte("output_length", mode.output_length(input.size()), expected.size());	329✔
133	} else {
134	result.test_sz_gte("output_length", mode.output_length(input.size()), expected.size());	329✔
135	}
136	} else {
137	// assume all other modes are not expanding (currently true)
138	result.test_sz_eq("output_length", mode.output_length(input.size()), expected.size());	1,834✔
139	}
140
141	result.confirm("default nonce size is allowed", mode.valid_nonce_length(mode.default_nonce_length()));	2,492✔
142
143	// Test that disallowed nonce sizes result in an exception
144	static constexpr size_t large_nonce_size = 65000;	2,492✔
145	result.test_is_false("Large nonce not allowed", mode.valid_nonce_length(large_nonce_size));	2,492✔
146	result.test_throws<Botan::Invalid_Argument>("Large nonce causes exception",	2,492✔
147	[&mode]() { mode.start(nullptr, large_nonce_size); });	4,984✔
148
149	Botan::secure_vector<uint8_t> garbage = rng.random_vec(update_granularity);	2,492✔
150	Botan::secure_vector<uint8_t> ultimate_garbage = rng.random_vec(min_final_bytes);	2,492✔
151
152	// Test to make sure reset() resets what we need it to
153	result.test_throws<Botan::Invalid_State>("Cannot process data (update) until key is set",	2,492✔
154	[&]() { mode.update(garbage); });	4,984✔
155	result.test_throws<Botan::Invalid_State>("Cannot process data (finish) until key is set",	2,492✔
156	[&]() { mode.finish(ultimate_garbage); });	4,984✔
157
158	mode.set_key(mutate_vec(key, rng));	2,492✔
159
160	if(!is_ctr) {	2,492✔
161	result.test_throws<Botan::Invalid_State>("Cannot process data until nonce is set",	2,488✔
162	[&]() { mode.update(garbage); });	4,976✔
163	}
164
165	mode.start(mutate_vec(nonce, rng));	2,492✔
166	mode.reset();	2,492✔
167
168	if(!is_ctr) {	2,492✔
169	result.test_throws<Botan::Invalid_State>("Cannot process data until nonce is set (after start/reset)",	2,488✔
170	[&]() { mode.update(garbage); });	4,976✔
171	}
172
173	mode.start(mutate_vec(nonce, rng));	2,492✔
174	mode.update(garbage);	2,492✔
175
176	mode.reset();	2,492✔
177
178	mode.set_key(key);	2,492✔
179	result.test_is_true("key is set", mode.has_keying_material());	2,492✔
180	mode.start(nonce);	2,492✔
181
182	Botan::secure_vector<uint8_t> buf;	2,492✔
183
184	buf.assign(input.begin(), input.end());	2,492✔
185	mode.finish(buf);	2,492✔
186	result.test_eq(direction + " all-in-one", buf, expected);	2,492✔
187
188	// additionally test update() and process() if possible
189	if(input.size() >= update_granularity + min_final_bytes) {	2,492✔
190	const size_t max_blocks_to_process = (input.size() - min_final_bytes) / update_granularity;	2,167✔
191	const size_t bytes_to_process = max_blocks_to_process * update_granularity;	2,167✔
192
193	// test update, 1 block at a time
194	if(max_blocks_to_process > 1) {	2,167✔
195	Botan::secure_vector<uint8_t> block(update_granularity);	1,787✔
196	buf.clear();	1,787✔
197
198	mode.start(nonce);	1,787✔
199	for(size_t i = 0; i != max_blocks_to_process; ++i) {	15,607✔
200	block.assign(input.data() + i * update_granularity, input.data() + (i + 1) * update_granularity);	13,820✔
201
202	mode.update(block);	13,820✔
203	buf += block;	13,820✔
204	}
205
206	Botan::secure_vector<uint8_t> last_bits(input.data() + bytes_to_process, input.data() + input.size());	1,787✔
207	mode.finish(last_bits);	1,787✔
208	buf += last_bits;	1,787✔
209
210	result.test_eq(direction + " update-1", buf, expected);	1,787✔
211	}	3,574✔
212
213	// test update with maximum length input
214	buf.assign(input.data(), input.data() + bytes_to_process);	2,167✔
215	Botan::secure_vector<uint8_t> last_bits(input.data() + bytes_to_process, input.data() + input.size());	2,167✔
216
217	mode.start(nonce);	2,167✔
218	mode.update(buf);	2,167✔
219	mode.finish(last_bits);	2,167✔
220
221	buf += last_bits;	2,167✔
222
223	result.test_eq(direction + " update-all", buf, expected);	2,167✔
224
225	// test process with maximum length input
226	mode.start(nonce);	2,167✔
227	buf.assign(input.begin(), input.end());	2,167✔
228
229	const size_t bytes_written = mode.process(buf.data(), bytes_to_process);	2,167✔
230
231	result.test_sz_eq("correct number of bytes processed", bytes_written, bytes_to_process);	2,167✔
232
233	mode.finish(buf, bytes_to_process);	2,167✔
234	result.test_eq(direction + " process", buf, expected);	2,167✔
235	}	2,167✔
236
237	mode.clear();	2,492✔
238	result.test_is_false("key is not set", mode.has_keying_material());	2,492✔
239
240	result.test_throws<Botan::Invalid_State>("Unkeyed object throws after clear", [&]() {	2,492✔
241	Botan::secure_vector<uint8_t> bad(min_final_bytes);	2,492✔
242	mode.finish(bad);	2,492✔
243	});	×
244	}	7,033✔
245	};
246
247	BOTAN_REGISTER_SMOKE_TEST("modes", "cipher_modes", Cipher_Mode_Tests);
248
249	class Cipher_Mode_IV_Carry_Tests final : public Test {	1✔
250	public:
251	std::vector<Test::Result> run() override {	1✔
252	std::vector<Test::Result> results;	1✔
253	results.push_back(test_cbc_iv_carry());	2✔
254	results.push_back(test_cfb_iv_carry());	2✔
255	results.push_back(test_ctr_iv_carry());	2✔
256	return results;	1✔
257	}	×
258
259	private:
260	static Test::Result test_cbc_iv_carry() {	1✔
261	Test::Result result("CBC IV carry");	1✔
262
263	#if defined(BOTAN_HAS_MODE_CBC) && defined(BOTAN_HAS_AES)
264	std::unique_ptr<Botan::Cipher_Mode> enc(	1✔
265	Botan::Cipher_Mode::create("AES-128/CBC/PKCS7", Botan::Cipher_Dir::Encryption));	1✔
266	std::unique_ptr<Botan::Cipher_Mode> dec(	1✔
267	Botan::Cipher_Mode::create("AES-128/CBC/PKCS7", Botan::Cipher_Dir::Decryption));	1✔
268
269	const std::vector<uint8_t> key(16, 0xAA);	1✔
270	const std::vector<uint8_t> iv(16, 0xAA);	1✔
271
272	Botan::secure_vector<uint8_t> msg1 =	1✔
273	Botan::hex_decode_locked("446F6E27742075736520706C61696E20434243206D6F6465");	1✔
274	Botan::secure_vector<uint8_t> msg2 = Botan::hex_decode_locked("49562063617272796F766572");	1✔
275	Botan::secure_vector<uint8_t> msg3 = Botan::hex_decode_locked("49562063617272796F76657232");	1✔
276
277	enc->set_key(key);	1✔
278	dec->set_key(key);	1✔
279
280	enc->start(iv);	1✔
281	enc->finish(msg1);	1✔
282	result.test_eq("First ciphertext", msg1, "9BDD7300E0CB61CA71FFF957A71605DB6836159C36781246A1ADF50982757F4B");	1✔
283
284	enc->start();	1✔
285	enc->finish(msg2);	1✔
286
287	result.test_eq("Second ciphertext", msg2, "AA8D682958A4A044735DAC502B274DB2");	1✔
288
289	enc->start();	1✔
290	enc->finish(msg3);	1✔
291
292	result.test_eq("Third ciphertext", msg3, "1241B9976F73051BCF809525D6E86C25");	1✔
293
294	dec->start(iv);	1✔
295	dec->finish(msg1);	1✔
296
297	dec->start();	1✔
298	dec->finish(msg2);	1✔
299
300	dec->start();	1✔
301	dec->finish(msg3);	1✔
302	result.test_eq("Third plaintext", msg3, "49562063617272796F76657232");	1✔
303
304	#endif
305	return result;	1✔
306	}	7✔
307
308	static Test::Result test_cfb_iv_carry() {	1✔
309	Test::Result result("CFB IV carry");	1✔
310	#if defined(BOTAN_HAS_MODE_CFB) && defined(BOTAN_HAS_AES)
311	std::unique_ptr<Botan::Cipher_Mode> enc(	1✔
312	Botan::Cipher_Mode::create("AES-128/CFB(8)", Botan::Cipher_Dir::Encryption));	1✔
313	std::unique_ptr<Botan::Cipher_Mode> dec(	1✔
314	Botan::Cipher_Mode::create("AES-128/CFB(8)", Botan::Cipher_Dir::Decryption));	1✔
315
316	const std::vector<uint8_t> key(16, 0xAA);	1✔
317	const std::vector<uint8_t> iv(16, 0xAB);	1✔
318
319	Botan::secure_vector<uint8_t> msg1 = Botan::hex_decode_locked("ABCDEF01234567");	1✔
320	Botan::secure_vector<uint8_t> msg2 = Botan::hex_decode_locked("0000123456ABCDEF");	1✔
321	Botan::secure_vector<uint8_t> msg3 = Botan::hex_decode_locked("012345");	1✔
322
323	enc->set_key(key);	1✔
324	dec->set_key(key);	1✔
325
326	enc->start(iv);	1✔
327	enc->finish(msg1);	1✔
328	result.test_eq("First ciphertext", msg1, "a51522387c4c9b");	1✔
329
330	enc->start();	1✔
331	enc->finish(msg2);	1✔
332
333	result.test_eq("Second ciphertext", msg2, "105457dc2e0649d4");	1✔
334
335	enc->start();	1✔
336	enc->finish(msg3);	1✔
337
338	result.test_eq("Third ciphertext", msg3, "53bd65");	1✔
339
340	dec->start(iv);	1✔
341	dec->finish(msg1);	1✔
342	result.test_eq("First plaintext", msg1, "ABCDEF01234567");	1✔
343
344	dec->start();	1✔
345	dec->finish(msg2);	1✔
346	result.test_eq("Second plaintext", msg2, "0000123456ABCDEF");	1✔
347
348	dec->start();	1✔
349	dec->finish(msg3);	1✔
350	result.test_eq("Third plaintext", msg3, "012345");	1✔
351	#endif
352	return result;	1✔
353	}	7✔
354
355	static Test::Result test_ctr_iv_carry() {	1✔
356	Test::Result result("CTR IV carry");	1✔
357	#if defined(BOTAN_HAS_CTR_BE) && defined(BOTAN_HAS_AES)
358
359	std::unique_ptr<Botan::Cipher_Mode> enc(	1✔
360	Botan::Cipher_Mode::create("AES-128/CTR-BE", Botan::Cipher_Dir::Encryption));	1✔
361	std::unique_ptr<Botan::Cipher_Mode> dec(	1✔
362	Botan::Cipher_Mode::create("AES-128/CTR-BE", Botan::Cipher_Dir::Decryption));	1✔
363
364	const std::vector<uint8_t> key = Botan::hex_decode("2B7E151628AED2A6ABF7158809CF4F3C");	1✔
365	const std::vector<uint8_t> iv = Botan::hex_decode("F0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF");	1✔
366
367	enc->set_key(key);	1✔
368	dec->set_key(key);	1✔
369
370	const std::vector<std::string> exp_ciphertext = {	1✔
371	"EC",
372	"8CDF",
373	"739860",
374	"7CB0F2D2",
375	"1675EA9EA1",
376	"E4362B7C3C67",
377	"73516318A077D7",
378	"FC5073AE6A2CC378",
379	"7889374FBEB4C81B17",
380	"BA6C44E89C399FF0F198C",
381	};	1✔
382
383	for(size_t i = 1; i != 10; ++i) {	10✔
384	if(i == 1) {	9✔
385	enc->start(iv);	1✔
386	dec->start(iv);	1✔
387	} else {
388	enc->start();	8✔
389	dec->start();	8✔
390	}
391
392	Botan::secure_vector<uint8_t> msg(i, 0);	9✔
393	enc->finish(msg);	9✔
394
395	result.test_eq("Ciphertext", msg, exp_ciphertext[i - 1].c_str());	9✔
396
397	dec->finish(msg);	9✔
398
399	for(const uint8_t b : msg) {	54✔
400	result.test_u8_eq("Plaintext zeros", b, 0);	45✔
401	}
402	}	9✔
403	#endif
404	return result;	2✔
405	}	5✔
406	};
407
408	BOTAN_REGISTER_TEST("modes", "iv_carryover", Cipher_Mode_IV_Carry_Tests);
409
410	#endif
411
412	} // namespace Botan_Tests

randombit / botan / 22020273955

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