2 * Copyright (c) 2016 - 2021 Samsung Electronics Co., Ltd All Rights Reserved
4 * Contact: Dariusz Michaluk (d.michaluk@samsung.com)
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License
21 * @author Krzysztof Jackiewicz (k.jackiewicz@samsung.com)
26 #include "dpl/test/test_runner.h"
29 #include <yaca_types.h>
32 #include "yaca-test-common.h"
33 #include "yaca-test-vector.h"
39 const size_t SHORT_ENOUGH = 16;
41 typedef int (*CryptoOp)(yaca_padding_e, const yaca_key_h, const char *, size_t, char **, size_t *);
43 void rsa_invalid_param(CryptoOp op,
44 yaca_padding_e padding,
51 if (output != nullptr)
53 if (output_len != nullptr)
56 YACA_INVALID_PARAM(op(padding, key, input, input_len, output, output_len));
59 void test_rsa_common_invalid_param(CryptoOp op, const KeyPtr& valid_key,
60 const char *input, size_t input_len)
62 char *output = nullptr;
65 auto sym_key = generate_key(YACA_KEY_TYPE_SYMMETRIC, YACA_KEY_LENGTH_192BIT);
66 auto iv = generate_key(YACA_KEY_TYPE_IV, YACA_KEY_LENGTH_IV_128BIT);
67 auto dsa_param = generate_key(YACA_KEY_TYPE_DSA_PARAMS, YACA_KEY_LENGTH_1024BIT);
68 auto dsa_priv = generate_key_from_parameters(dsa_param);
69 auto dsa_pub = extract_public_key(dsa_priv);
71 YACA_INVALID_PARAM(op(static_cast<yaca_padding_e>(-1), valid_key.get(),
73 &output, &output_len));
75 YACA_INVALID_PARAM(op(YACA_PADDING_PKCS1, YACA_KEY_NULL,
77 &output, &output_len));
78 YACA_INVALID_PARAM(op(YACA_PADDING_PKCS1, dsa_pub.get(),
80 &output, &output_len));
81 YACA_INVALID_PARAM(op(YACA_PADDING_PKCS1, sym_key.get(),
83 &output, &output_len));
84 YACA_INVALID_PARAM(op(YACA_PADDING_PKCS1, iv.get(),
86 &output, &output_len));
87 YACA_INVALID_PARAM(op(YACA_PADDING_PKCS1, dsa_param.get(),
89 &output, &output_len));
91 YACA_INVALID_PARAM(op(YACA_PADDING_PKCS1, valid_key.get(),
92 nullptr, SHORT_ENOUGH,
93 &output, &output_len));
94 YACA_INVALID_PARAM(op(YACA_PADDING_PKCS1, valid_key.get(),
96 &output, &output_len));
98 YACA_INVALID_PARAM(op(YACA_PADDING_PKCS1, valid_key.get(),
100 nullptr, &output_len));
101 YACA_INVALID_PARAM(op(YACA_PADDING_PKCS1, valid_key.get(),
114 yaca_padding_e padding;
115 int supported_encryption;
120 const std::vector<PaddingInfo> PADDINGS = {
121 { YACA_PADDING_NONE, ET_PUB | ET_PRV, 0, true },
122 { YACA_PADDING_X931, ET_NONE, 0, false },
123 { YACA_PADDING_PKCS1, ET_PUB | ET_PRV, 11, false },
124 { YACA_PADDING_PKCS1_PSS, ET_NONE, 0, false },
125 { YACA_PADDING_PKCS1_OAEP, ET_PUB, 42, false },
126 { YACA_PADDING_PKCS1_SSLV23, ET_PUB, 11, false },
127 { YACA_PADDING_PKCS7, ET_NONE, 0, false }
130 void test_rsa_padding(const KeyPair& kp, const PaddingInfo& pi, EncryptionType et)
133 size_t ciphertext_len;
134 size_t plaintext_len;
137 yaca_padding_e padding = pi.padding;
138 size_t max_len = kp.bit_len / 8 - pi.padding_size;
139 const KeyPtr& enc_key = (et == ET_PUB) ? kp.pub : kp.prv;
140 const KeyPtr& dec_key = (et == ET_PUB) ? kp.prv : kp.pub;
141 CryptoOp encrypt = (et == ET_PUB) ? yaca_rsa_public_encrypt : yaca_rsa_private_encrypt;
142 CryptoOp decrypt = (et == ET_PUB) ? yaca_rsa_private_decrypt : yaca_rsa_public_decrypt;
144 /* padding not suitable for this operation */
145 if ((pi.supported_encryption & et) == 0) {
146 YACA_INVALID_PARAM(encrypt(pi.padding, enc_key.get(),
147 lorem1024, SHORT_ENOUGH,
148 &tmp, &ciphertext_len));
153 YACA_INVALID_PARAM(encrypt(padding, enc_key.get(),
154 lorem1024, max_len + 1,
155 &tmp, &ciphertext_len));
157 /* input shorter than max len */
158 expected = pi.exact ? YACA_ERROR_INVALID_PARAMETER : YACA_ERROR_NONE;
160 YACA_RESULT(expected, encrypt(padding, enc_key.get(),
161 lorem1024, max_len - 1,
162 &tmp, &ciphertext_len));
165 YACA_RESULT(expected, encrypt(padding, enc_key.get(),
167 &tmp, &ciphertext_len));
172 YACA_SUCCESS(encrypt(padding, enc_key.get(),
174 &tmp, &ciphertext_len));
176 auto ciphertext = wrap_ptr(tmp);
178 YACA_ASSERT_MSG(ciphertext != nullptr, "Empty ciphertext");
179 YACA_ASSERT_MSG(ciphertext_len == kp.bit_len / 8,
180 "Expected ciphertext length: " << kp.bit_len / 8 <<
181 " got: " << ciphertext_len);
183 /* decrypt with incorrect paddings */
184 for (auto& p : PADDINGS) {
185 /* don't decrypt with the same padding except for SSLV23 */
186 if (p.padding == padding && p.padding != YACA_PADDING_PKCS1_SSLV23)
190 * - YACA_PADDING_PKCS1 & YACA_PADDING_PKCS1_SSLV23 are compatible in case of
191 * public_encrypt/private_decrypt
192 * - YACA_PADDING_NONE checks only the input length
194 expected = YACA_ERROR_INVALID_PARAMETER;
195 if (p.padding == YACA_PADDING_NONE ||
196 (et == ET_PUB && ((p.padding == YACA_PADDING_PKCS1 && padding == YACA_PADDING_PKCS1_SSLV23) ||
197 (p.padding == padding))))
198 expected = YACA_ERROR_NONE;
200 int ret = decrypt(p.padding, dec_key.get(),
201 ciphertext.get(), ciphertext_len,
202 &tmp, &plaintext_len);
203 if (ret != expected && expected == YACA_ERROR_INVALID_PARAMETER) {
204 YACA_ASSERT_MSG(ret == YACA_ERROR_NONE, "Got unexpected error " << ret);
205 YACA_ASSERT_MSG(plaintext_len != max_len,
206 "Message unpadded with invalid padding has correct length");
210 /* decryption with SSLV23 will fail if it was used during encryption */
211 if (padding == YACA_PADDING_PKCS1_SSLV23)
212 padding = YACA_PADDING_PKCS1;
215 * Shortened ciphertext. During encryption without padding OpenSSL allows
216 * input of length equal to the key length but during decryption it allows
217 * also shorter input. Yaca API does the same.
219 if (padding != YACA_PADDING_NONE)
220 YACA_INVALID_PARAM(decrypt(padding, dec_key.get(),
221 ciphertext.get(), ciphertext_len - 1,
222 &tmp, &plaintext_len));
224 /* extended ciphertext */
225 std::vector<char> extended(ciphertext.get(), ciphertext.get() + ciphertext_len);
226 extended.push_back(' ');
227 YACA_INVALID_PARAM(decrypt(padding, dec_key.get(),
228 extended.data(), extended.size(),
229 &tmp, &plaintext_len));
231 /* valid ciphertext */
232 YACA_SUCCESS(decrypt(padding, dec_key.get(),
233 ciphertext.get(), ciphertext_len,
234 &tmp, &plaintext_len));
235 ChrPtr plaintext = wrap_ptr(tmp);
237 RUNNER_ASSERT_MSG(plaintext_len == max_len,
238 "Decrypted message has different length (" << plaintext_len <<
239 "B) than the original (" << max_len << "B)");
241 YACA_SUCCESS(yaca_memcmp(plaintext.get(), lorem1024, plaintext_len));
244 } // anonymous namespace
246 RUNNER_TEST_GROUP_INIT(T9000_YACA_RSA);
248 RUNNER_TEST(T9010_yaca_rsa_public_encrypt_invalid_param, YacaTest)
250 char *ciphertext = nullptr;
251 size_t ciphertext_len;
253 KeyPair rsa(YACA_KEY_TYPE_RSA_PRIV, YACA_KEY_LENGTH_1024BIT);
255 test_rsa_common_invalid_param(yaca_rsa_public_encrypt, rsa.pub, lorem1024, SHORT_ENOUGH);
257 rsa_invalid_param(yaca_rsa_public_encrypt, YACA_PADDING_PKCS1, rsa.prv.get(),
258 lorem1024, SHORT_ENOUGH,
259 &ciphertext, &ciphertext_len);
262 RUNNER_TEST(T9020_yaca_rsa_private_decrypt_invalid_param, YacaTest)
265 size_t ciphertext_len;
266 char *plaintext = nullptr;
267 size_t plaintext_len;
269 KeyPair rsa(YACA_KEY_TYPE_RSA_PRIV, YACA_KEY_LENGTH_1024BIT);
271 YACA_SUCCESS(yaca_rsa_public_encrypt(YACA_PADDING_PKCS1, rsa.pub.get(),
272 lorem1024, SHORT_ENOUGH,
273 &tmp, &ciphertext_len));
275 ChrPtr ciphertext = wrap_ptr(tmp);
277 test_rsa_common_invalid_param(yaca_rsa_private_decrypt, rsa.prv,
278 ciphertext.get(), ciphertext_len);
280 rsa_invalid_param(yaca_rsa_private_decrypt, YACA_PADDING_PKCS1, rsa.pub.get(),
281 ciphertext.get(), ciphertext_len,
282 &plaintext, &plaintext_len);
285 RUNNER_TEST(T9030_yaca_rsa_private_encrypt_invalid_param, YacaTest)
287 char *ciphertext = nullptr;
288 size_t ciphertext_len;
290 KeyPair rsa(YACA_KEY_TYPE_RSA_PRIV, YACA_KEY_LENGTH_1024BIT);
292 test_rsa_common_invalid_param(yaca_rsa_private_encrypt, rsa.prv, lorem1024, SHORT_ENOUGH);
294 rsa_invalid_param(yaca_rsa_private_encrypt, YACA_PADDING_PKCS1, rsa.pub.get(),
295 lorem1024, SHORT_ENOUGH,
296 &ciphertext, &ciphertext_len);
299 RUNNER_TEST(T9040_yaca_rsa_public_decrypt_invalid_param, YacaTest)
302 size_t ciphertext_len;
303 char *plaintext = nullptr;
304 size_t plaintext_len;
306 KeyPair rsa(YACA_KEY_TYPE_RSA_PRIV, YACA_KEY_LENGTH_1024BIT);
308 YACA_SUCCESS(yaca_rsa_private_encrypt(YACA_PADDING_PKCS1, rsa.prv.get(),
309 lorem1024, SHORT_ENOUGH,
310 &tmp, &ciphertext_len));
312 ChrPtr ciphertext = wrap_ptr(tmp);
314 test_rsa_common_invalid_param(yaca_rsa_public_decrypt, rsa.pub,
315 ciphertext.get(), ciphertext_len);
317 rsa_invalid_param(yaca_rsa_public_decrypt, YACA_PADDING_PKCS1, rsa.prv.get(),
318 ciphertext.get(), ciphertext_len,
319 &plaintext, &plaintext_len);
322 RUNNER_TEST(T9050_yaca_rsa_encryption_paddings, YacaTest)
324 std::vector<KeyPair> key_pairs;
325 key_pairs.emplace_back(YACA_KEY_TYPE_RSA_PRIV, YACA_KEY_LENGTH_512BIT);
326 key_pairs.emplace_back(YACA_KEY_TYPE_RSA_PRIV, YACA_KEY_LENGTH_1024BIT);
327 key_pairs.emplace_back(YACA_KEY_TYPE_RSA_PRIV, YACA_KEY_LENGTH_2048BIT);
328 key_pairs.emplace_back(YACA_KEY_TYPE_RSA_PRIV, YACA_KEY_LENGTH_3072BIT);
329 key_pairs.emplace_back(YACA_KEY_TYPE_RSA_PRIV, YACA_KEY_LENGTH_4096BIT);
331 for (auto& kp : key_pairs) {
332 for (auto& pi : PADDINGS) {
333 test_rsa_padding(kp, pi, ET_PUB);
334 test_rsa_padding(kp, pi, ET_PRV);