20579846577

Committed 29 Dec 2025 06:24PM UTC coverage: 90.415% (+0.2%) from 90.243%

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Merge pull request #5167 from randombit/jack/src-size-reductions

Changes to reduce unnecessary inclusions

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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/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_eq("enc and dec granularity is the same", enc->update_granularity(), dec->update_granularity());

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

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

            result.test_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_eq("mode not authenticated", mode.authenticated(), false);

         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_gt("buffer sizes ok", mode.ideal_granularity(), min_final_bytes);

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

         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_lte("output_length", mode.output_length(input.size()), expected.size());
            } else {
               result.test_gte("output_length", mode.output_length(input.size()), expected.size());
            }
         } else {
            // assume all other modes are not expanding (currently true)
            result.test_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_eq("Large nonce not allowed", mode.valid_nonce_length(large_nonce_size), false);
         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_eq("key is set", mode.has_keying_material(), true);
         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_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_eq("key is not set", mode.has_keying_material(), false);

         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_eq("Plaintext zeros", static_cast<size_t>(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/rng.h>
14	#endif
15
16	namespace Botan_Tests {
17
18	#if defined(BOTAN_HAS_CIPHER_MODES)
19
20	class Cipher_Mode_Tests final : public Text_Based_Test {	×
21	public:
22	Cipher_Mode_Tests() : Text_Based_Test("modes", "Key,Nonce,In,Out") {}	2✔
23
24	std::vector<std::string> possible_providers(const std::string& algo) override {	1,245✔
25	return provider_filter(Botan::Cipher_Mode::providers(algo));	1,245✔
26	}
27
28	Test::Result run_one_test(const std::string& algo, const VarMap& vars) override {	1,245✔
29	const std::vector<uint8_t> key = vars.get_req_bin("Key");	1,245✔
30	const std::vector<uint8_t> nonce = vars.get_req_bin("Nonce");	1,245✔
31	const std::vector<uint8_t> input = vars.get_req_bin("In");	1,245✔
32	const std::vector<uint8_t> expected = vars.get_req_bin("Out");	1,245✔
33
34	Test::Result result(algo);	2,490✔
35
36	const std::vector<std::string> providers = possible_providers(algo);	1,245✔
37
38	if(providers.empty()) {	1,245✔
39	result.note_missing("cipher mode " + algo);	×
40	return result;	×
41	}
42
43	for(auto&& provider_ask : providers) {	2,490✔
44	auto enc = Botan::Cipher_Mode::create(algo, Botan::Cipher_Dir::Encryption, provider_ask);	1,245✔
45
46	auto dec = Botan::Cipher_Mode::create(algo, Botan::Cipher_Dir::Decryption, provider_ask);	1,245✔
47
48	if(!enc \|\| !dec) {	1,245✔
49	if(enc) {	×
50	result.test_failure("Provider " + provider_ask + " has encrypt but not decrypt");	×
51	}
52	if(dec) {	×
53	result.test_failure("Provider " + provider_ask + " has decrypt but not encrypt");	×
54	}
55	result.note_missing(algo);	×
56	return result;	×
57	}
58
59	result.test_eq("enc and dec granularity is the same", enc->update_granularity(), dec->update_granularity());	1,245✔
60
61	result.test_gt("update granularity is non-zero", enc->update_granularity(), 0);	1,245✔
62
63	result.test_eq(	1,245✔
64	"enc and dec ideal granularity is the same", enc->ideal_granularity(), dec->ideal_granularity());	1,245✔
65
66	result.test_gt(	1,245✔
67	"ideal granularity is at least update granularity", enc->ideal_granularity(), enc->update_granularity());	1,245✔
68
69	result.confirm("ideal granularity is a multiple of update granularity",	2,490✔
70	enc->ideal_granularity() % enc->update_granularity() == 0);	1,245✔
71
72	try {	1,245✔
73	test_mode(result, algo, provider_ask, "encryption", *enc, key, nonce, input, expected, this->rng());	2,490✔
74	} catch(Botan::Exception& e) {	×
75	result.test_failure("Encryption tests failed", e.what());	×
76	}	×
77
78	try {	1,245✔
79	// NOLINTNEXTLINE(*-suspicious-call-argument) intentionally swapping ptext and ctext arguments here
80	test_mode(result, algo, provider_ask, "decryption", *dec, key, nonce, expected, input, this->rng());	2,490✔
81	} catch(Botan::Exception& e) {	×
82	result.test_failure("Decryption tests failed", e.what());	×
83	}	×
84	}	2,490✔
85
86	return result;
87	}	6,225✔
88
89	private:
90	static void test_mode(Test::Result& result,	2,490✔
91	const std::string& algo,
92	const std::string& provider,
93	const std::string& direction,
94	Botan::Cipher_Mode& mode,
95	const std::vector<uint8_t>& key,
96	const std::vector<uint8_t>& nonce,
97	const std::vector<uint8_t>& input,
98	const std::vector<uint8_t>& expected,
99	Botan::RandomNumberGenerator& rng) {
100	const bool is_cbc = (algo.find("/CBC") != std::string::npos);	2,490✔
101	const bool is_ctr = (algo.find("CTR") != std::string::npos);	2,490✔
102
103	result.test_eq("name", mode.name(), algo);	4,980✔
104
105	// Some modes report base even if got from another provider
106	if(mode.provider() != "base") {	2,490✔
107	result.test_eq("provider", mode.provider(), provider);	×
108	}
109
110	result.test_eq("mode not authenticated", mode.authenticated(), false);	2,490✔
111
112	const size_t update_granularity = mode.update_granularity();	2,490✔
113	const size_t min_final_bytes = mode.minimum_final_size();	2,490✔
114
115	// FFI currently requires this, so assure it is true for all modes
116	result.test_gt("buffer sizes ok", mode.ideal_granularity(), min_final_bytes);	2,490✔
117
118	result.test_eq("key not set", mode.has_keying_material(), false);	2,490✔
119
120	result.test_throws<Botan::Invalid_State>("Unkeyed object throws", [&]() {	4,980✔
121	Botan::secure_vector<uint8_t> bad(min_final_bytes);	2,490✔
122	mode.finish(bad);	2,490✔
123	});	×
124
125	if(is_cbc) {	2,490✔
126	// can't test equal due to CBC padding
127
128	if(direction == "encryption") {	658✔
129	result.test_lte("output_length", mode.output_length(input.size()), expected.size());	658✔
130	} else {
131	result.test_gte("output_length", mode.output_length(input.size()), expected.size());	658✔
132	}
133	} else {
134	// assume all other modes are not expanding (currently true)
135	result.test_eq("output_length", mode.output_length(input.size()), expected.size());	3,664✔
136	}
137
138	result.confirm("default nonce size is allowed", mode.valid_nonce_length(mode.default_nonce_length()));	4,980✔
139
140	// Test that disallowed nonce sizes result in an exception
141	static constexpr size_t large_nonce_size = 65000;	2,490✔
142	result.test_eq("Large nonce not allowed", mode.valid_nonce_length(large_nonce_size), false);	2,490✔
143	result.test_throws<Botan::Invalid_Argument>("Large nonce causes exception",	4,980✔
144	[&mode]() { mode.start(nullptr, large_nonce_size); });	4,980✔
145
146	Botan::secure_vector<uint8_t> garbage = rng.random_vec(update_granularity);	2,490✔
147	Botan::secure_vector<uint8_t> ultimate_garbage = rng.random_vec(min_final_bytes);	2,490✔
148
149	// Test to make sure reset() resets what we need it to
150	result.test_throws<Botan::Invalid_State>("Cannot process data (update) until key is set",	4,980✔
151	[&]() { mode.update(garbage); });	4,980✔
152	result.test_throws<Botan::Invalid_State>("Cannot process data (finish) until key is set",	4,980✔
153	[&]() { mode.finish(ultimate_garbage); });	4,980✔
154
155	mode.set_key(mutate_vec(key, rng));	2,490✔
156
157	if(!is_ctr) {	2,490✔
158	result.test_throws<Botan::Invalid_State>("Cannot process data until nonce is set",	7,458✔
159	[&]() { mode.update(garbage); });	4,972✔
160	}
161
162	mode.start(mutate_vec(nonce, rng));	2,490✔
163	mode.reset();	2,490✔
164
165	if(!is_ctr) {	2,490✔
166	result.test_throws<Botan::Invalid_State>("Cannot process data until nonce is set (after start/reset)",	7,458✔
167	[&]() { mode.update(garbage); });	4,972✔
168	}
169
170	mode.start(mutate_vec(nonce, rng));	2,490✔
171	mode.update(garbage);	2,490✔
172
173	mode.reset();	2,490✔
174
175	mode.set_key(key);	2,490✔
176	result.test_eq("key is set", mode.has_keying_material(), true);	2,490✔
177	mode.start(nonce);	2,490✔
178
179	Botan::secure_vector<uint8_t> buf;	2,490✔
180
181	buf.assign(input.begin(), input.end());	2,490✔
182	mode.finish(buf);	2,490✔
183	result.test_eq(direction + " all-in-one", buf, expected);	4,980✔
184
185	// additionally test update() and process() if possible
186	if(input.size() >= update_granularity + min_final_bytes) {	2,490✔
187	const size_t max_blocks_to_process = (input.size() - min_final_bytes) / update_granularity;	2,165✔
188	const size_t bytes_to_process = max_blocks_to_process * update_granularity;	2,165✔
189
190	// test update, 1 block at a time
191	if(max_blocks_to_process > 1) {	2,165✔
192	Botan::secure_vector<uint8_t> block(update_granularity);	1,785✔
193	buf.clear();	1,785✔
194
195	mode.start(nonce);	1,785✔
196	for(size_t i = 0; i != max_blocks_to_process; ++i) {	15,425✔
197	block.assign(input.data() + i * update_granularity, input.data() + (i + 1) * update_granularity);	13,640✔
198
199	mode.update(block);	13,640✔
200	buf += block;	13,640✔
201	}
202
203	Botan::secure_vector<uint8_t> last_bits(input.data() + bytes_to_process, input.data() + input.size());	1,785✔
204	mode.finish(last_bits);	1,785✔
205	buf += last_bits;	1,785✔
206
207	result.test_eq(direction + " update-1", buf, expected);	3,570✔
208	}	3,570✔
209
210	// test update with maximum length input
211	buf.assign(input.data(), input.data() + bytes_to_process);	2,165✔
212	Botan::secure_vector<uint8_t> last_bits(input.data() + bytes_to_process, input.data() + input.size());	2,165✔
213
214	mode.start(nonce);	2,165✔
215	mode.update(buf);	2,165✔
216	mode.finish(last_bits);	2,165✔
217
218	buf += last_bits;	2,165✔
219
220	result.test_eq(direction + " update-all", buf, expected);	4,330✔
221
222	// test process with maximum length input
223	mode.start(nonce);	2,165✔
224	buf.assign(input.begin(), input.end());	2,165✔
225
226	const size_t bytes_written = mode.process(buf.data(), bytes_to_process);	2,165✔
227
228	result.test_eq("correct number of bytes processed", bytes_written, bytes_to_process);	2,165✔
229
230	mode.finish(buf, bytes_to_process);	2,165✔
231	result.test_eq(direction + " process", buf, expected);	4,330✔
232	}	2,165✔
233
234	mode.clear();	2,490✔
235	result.test_eq("key is not set", mode.has_keying_material(), false);	2,490✔
236
237	result.test_throws<Botan::Invalid_State>("Unkeyed object throws after clear", [&]() {	7,470✔
238	Botan::secure_vector<uint8_t> bad(min_final_bytes);	2,490✔
239	mode.finish(bad);	2,490✔
240	});	×
241	}	7,027✔
242	};
243
244	BOTAN_REGISTER_SMOKE_TEST("modes", "cipher_modes", Cipher_Mode_Tests);
245
246	class Cipher_Mode_IV_Carry_Tests final : public Test {	1✔
247	public:
248	std::vector<Test::Result> run() override {	1✔
249	std::vector<Test::Result> results;	1✔
250	results.push_back(test_cbc_iv_carry());	2✔
251	results.push_back(test_cfb_iv_carry());	2✔
252	results.push_back(test_ctr_iv_carry());	2✔
253	return results;	1✔
254	}	×
255
256	private:
257	static Test::Result test_cbc_iv_carry() {	1✔
258	Test::Result result("CBC IV carry");	1✔
259
260	#if defined(BOTAN_HAS_MODE_CBC) && defined(BOTAN_HAS_AES)
261	std::unique_ptr<Botan::Cipher_Mode> enc(	1✔
262	Botan::Cipher_Mode::create("AES-128/CBC/PKCS7", Botan::Cipher_Dir::Encryption));	1✔
263	std::unique_ptr<Botan::Cipher_Mode> dec(	1✔
264	Botan::Cipher_Mode::create("AES-128/CBC/PKCS7", Botan::Cipher_Dir::Decryption));	1✔
265
266	const std::vector<uint8_t> key(16, 0xAA);	1✔
267	const std::vector<uint8_t> iv(16, 0xAA);	1✔
268
269	Botan::secure_vector<uint8_t> msg1 =	1✔
270	Botan::hex_decode_locked("446F6E27742075736520706C61696E20434243206D6F6465");	1✔
271	Botan::secure_vector<uint8_t> msg2 = Botan::hex_decode_locked("49562063617272796F766572");	1✔
272	Botan::secure_vector<uint8_t> msg3 = Botan::hex_decode_locked("49562063617272796F76657232");	1✔
273
274	enc->set_key(key);	1✔
275	dec->set_key(key);	1✔
276
277	enc->start(iv);	1✔
278	enc->finish(msg1);	1✔
279	result.test_eq("First ciphertext", msg1, "9BDD7300E0CB61CA71FFF957A71605DB6836159C36781246A1ADF50982757F4B");	1✔
280
281	enc->start();	1✔
282	enc->finish(msg2);	1✔
283
284	result.test_eq("Second ciphertext", msg2, "AA8D682958A4A044735DAC502B274DB2");	1✔
285
286	enc->start();	1✔
287	enc->finish(msg3);	1✔
288
289	result.test_eq("Third ciphertext", msg3, "1241B9976F73051BCF809525D6E86C25");	1✔
290
291	dec->start(iv);	1✔
292	dec->finish(msg1);	1✔
293
294	dec->start();	1✔
295	dec->finish(msg2);	1✔
296
297	dec->start();	1✔
298	dec->finish(msg3);	1✔
299	result.test_eq("Third plaintext", msg3, "49562063617272796F76657232");	1✔
300
301	#endif
302	return result;	1✔
303	}	7✔
304
305	static Test::Result test_cfb_iv_carry() {	1✔
306	Test::Result result("CFB IV carry");	1✔
307	#if defined(BOTAN_HAS_MODE_CFB) && defined(BOTAN_HAS_AES)
308	std::unique_ptr<Botan::Cipher_Mode> enc(	1✔
309	Botan::Cipher_Mode::create("AES-128/CFB(8)", Botan::Cipher_Dir::Encryption));	1✔
310	std::unique_ptr<Botan::Cipher_Mode> dec(	1✔
311	Botan::Cipher_Mode::create("AES-128/CFB(8)", Botan::Cipher_Dir::Decryption));	1✔
312
313	const std::vector<uint8_t> key(16, 0xAA);	1✔
314	const std::vector<uint8_t> iv(16, 0xAB);	1✔
315
316	Botan::secure_vector<uint8_t> msg1 = Botan::hex_decode_locked("ABCDEF01234567");	1✔
317	Botan::secure_vector<uint8_t> msg2 = Botan::hex_decode_locked("0000123456ABCDEF");	1✔
318	Botan::secure_vector<uint8_t> msg3 = Botan::hex_decode_locked("012345");	1✔
319
320	enc->set_key(key);	1✔
321	dec->set_key(key);	1✔
322
323	enc->start(iv);	1✔
324	enc->finish(msg1);	1✔
325	result.test_eq("First ciphertext", msg1, "a51522387c4c9b");	1✔
326
327	enc->start();	1✔
328	enc->finish(msg2);	1✔
329
330	result.test_eq("Second ciphertext", msg2, "105457dc2e0649d4");	1✔
331
332	enc->start();	1✔
333	enc->finish(msg3);	1✔
334
335	result.test_eq("Third ciphertext", msg3, "53bd65");	1✔
336
337	dec->start(iv);	1✔
338	dec->finish(msg1);	1✔
339	result.test_eq("First plaintext", msg1, "ABCDEF01234567");	1✔
340
341	dec->start();	1✔
342	dec->finish(msg2);	1✔
343	result.test_eq("Second plaintext", msg2, "0000123456ABCDEF");	1✔
344
345	dec->start();	1✔
346	dec->finish(msg3);	1✔
347	result.test_eq("Third plaintext", msg3, "012345");	1✔
348	#endif
349	return result;	1✔
350	}	7✔
351
352	static Test::Result test_ctr_iv_carry() {	1✔
353	Test::Result result("CTR IV carry");	1✔
354	#if defined(BOTAN_HAS_CTR_BE) && defined(BOTAN_HAS_AES)
355
356	std::unique_ptr<Botan::Cipher_Mode> enc(	1✔
357	Botan::Cipher_Mode::create("AES-128/CTR-BE", Botan::Cipher_Dir::Encryption));	1✔
358	std::unique_ptr<Botan::Cipher_Mode> dec(	1✔
359	Botan::Cipher_Mode::create("AES-128/CTR-BE", Botan::Cipher_Dir::Decryption));	1✔
360
361	const std::vector<uint8_t> key = Botan::hex_decode("2B7E151628AED2A6ABF7158809CF4F3C");	1✔
362	const std::vector<uint8_t> iv = Botan::hex_decode("F0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF");	1✔
363
364	enc->set_key(key);	1✔
365	dec->set_key(key);	1✔
366
367	const std::vector<std::string> exp_ciphertext = {	1✔
368	"EC",
369	"8CDF",
370	"739860",
371	"7CB0F2D2",
372	"1675EA9EA1",
373	"E4362B7C3C67",
374	"73516318A077D7",
375	"FC5073AE6A2CC378",
376	"7889374FBEB4C81B17",
377	"BA6C44E89C399FF0F198C",
378	};	1✔
379
380	for(size_t i = 1; i != 10; ++i) {	10✔
381	if(i == 1) {	9✔
382	enc->start(iv);	1✔
383	dec->start(iv);	1✔
384	} else {
385	enc->start();	8✔
386	dec->start();	8✔
387	}
388
389	Botan::secure_vector<uint8_t> msg(i, 0);	9✔
390	enc->finish(msg);	9✔
391
392	result.test_eq("Ciphertext", msg, exp_ciphertext[i - 1].c_str());	9✔
393
394	dec->finish(msg);	9✔
395
396	for(const uint8_t b : msg) {	54✔
397	result.test_eq("Plaintext zeros", static_cast<size_t>(b), 0);	90✔
398	}
399	}	9✔
400	#endif
401	return result;	2✔
402	}	5✔
403	};
404
405	BOTAN_REGISTER_TEST("modes", "iv_carryover", Cipher_Mode_IV_Carry_Tests);
406
407	#endif
408
409	} // namespace Botan_Tests

randombit / botan / 20579846577

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