GCC Code Coverage Report

Directory: src/gate/
File: src/gate/encode/cxx_blockciphers.cpp
Date: 2025-12-12 23:40:09
Exec Total Coverage
Lines: 122 133 91.7%
Functions: 24 26 92.3%
Branches: 35 62 56.5%
Line Branch Exec Source
1 /* GATE PROJECT LICENSE:
2 +----------------------------------------------------------------------------+
3 | Copyright(c) 2018-2025, Stefan Meislinger <sm@opengate.at> |
4 | All rights reserved. |
5 | |
6 | Redistribution and use in source and binary forms, with or without |
7 | modification, are permitted provided that the following conditions are met:|
8 | |
9 | 1. Redistributions of source code must retain the above copyright notice, |
10 | this list of conditions and the following disclaimer. |
11 | 2. Redistributions in binary form must reproduce the above copyright |
12 | notice, this list of conditions and the following disclaimer in the |
13 | documentation and/or other materials provided with the distribution. |
14 | |
15 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"|
16 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
17 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
18 | ARE DISCLAIMED.IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
19 | LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
20 | CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
21 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
22 | INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
23 | CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
24 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
25 | THE POSSIBILITY OF SUCH DAMAGE. |
26 +----------------------------------------------------------------------------+
27 */
28 #include "gate/encode/blockciphers.hpp"
29 #include "gate/exceptions.hpp"
30 #include "gate/results.hpp"
31 #include "gate/memalloc.hpp"
32
33 namespace gate
34 {
35 namespace enc
36 {
37
38 9 Blowfish::Block::Block(uint32_t l, uint32_t r)
39 {
40 9 gate_blowfish_block_init(this, l, r);
41 9 }
42 ✗ Blowfish::Block::Block(unsigned char const l[4], unsigned char const r[4])
43 {
44 ✗ Mem::copy(&this->L[0], &l[0], sizeof(this->L));
45 ✗ Mem::copy(&this->R[0], &r[0], sizeof(this->R));
46 ✗ }
47
48
49 4 Blowfish::Blowfish(void const* key, size_t keylength)
50 4 : cbc(false), cbcBlock(Block())
51 {
52 4 result_t result = gate_blowfish_init(&this->impl, key, keylength);
53
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 4 GATEXX_CHECK_ERROR(result);
54 4 }
55
56 4 Blowfish::Blowfish(void const* key, size_t keylength, Block const& cbcIvBlock)
57 4 : cbc(true)
58 {
59 4 result_t result = gate_blowfish_block_load(&this->cbcBlock, &cbcIvBlock, sizeof(cbcIvBlock));
60
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 4 GATEXX_CHECK_ERROR(result);
61 4 result = gate_blowfish_init(&this->impl, key, keylength);
62
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 4 GATEXX_CHECK_ERROR(result);
63 4 }
64
65 2 size_t Blowfish::encrypt(char const* srcbuffer, char* dstbuffer, size_t length)
66 {
67 2 size_t ret = length - (length % GATE_BLOWFISH_BLOCKLEN);
68 result_t result;
69
70
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 2 if (this->cbc)
71 {
72 1 result = gate_blowfish_encrypt_cbc(&this->impl, srcbuffer, dstbuffer, ret, &this->cbcBlock);
73 }
74 else
75 {
76 1 result = gate_blowfish_encrypt(&this->impl, srcbuffer, dstbuffer, ret);
77 }
78
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 2 GATEXX_CHECK_ERROR(result);
79 2 return ret;
80 }
81 2 size_t Blowfish::encrypt(char* buffer, size_t length)
82 {
83 2 return this->encrypt(buffer, buffer, length);
84 }
85 2 void Blowfish::encrypt(Stream& input, Stream& output)
86 {
87 gate_result_t result;
88
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 2 if (this->cbc)
89 {
90 1 result = gate_blowfish_encrypt_cbc_stream(&this->impl, input.c_impl(), output.c_impl(), &this->cbcBlock);
91 }
92 else
93 {
94 1 result = gate_blowfish_encrypt_stream(&this->impl, input.c_impl(), output.c_impl());
95 }
96
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 2 GATEXX_CHECK_ERROR(result);
97 2 }
98
99
100 2 size_t Blowfish::decrypt(char const* srcbuffer, char* dstbuffer, size_t length)
101 {
102 2 size_t ret = length - (length % GATE_BLOWFISH_BLOCKLEN);
103 result_t result;
104
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 2 if (this->cbc)
105 {
106 1 result = gate_blowfish_decrypt_cbc(&this->impl, srcbuffer, dstbuffer, ret, &this->cbcBlock);
107 }
108 else
109 {
110 1 result = gate_blowfish_decrypt(&this->impl, srcbuffer, dstbuffer, ret);
111 }
112
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 2 GATEXX_CHECK_EXCEPTION(result);
113 2 return ret;
114 }
115 2 size_t Blowfish::decrypt(char* buffer, size_t length)
116 {
117 2 return this->decrypt(buffer, buffer, length);
118 }
119 2 void Blowfish::decrypt(Stream& input, Stream& output)
120 {
121 gate_result_t result;
122
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 2 if (this->cbc)
123 {
124 1 result = gate_blowfish_decrypt_cbc_stream(&this->impl, input.c_impl(), output.c_impl(), &this->cbcBlock);
125 }
126 else
127 {
128 1 result = gate_blowfish_decrypt_stream(&this->impl, input.c_impl(), output.c_impl());
129 }
130
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 2 GATEXX_CHECK_ERROR(result);
131 2 }
132
133
134
135 1 Xtea::Xtea(uint32_t const key[4])
136 {
137
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 5 for (size_t n = 0; n != 4; ++n)
138 {
139 4 this->keyblock[n] = key[n];
140 }
141 1 Mem::clear(this->keyblockbuffer, sizeof(this->keyblockbuffer));
142 1 }
143 4 Xtea::Xtea(char const* key, size_t keylength)
144 {
145
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 4 if (keylength < sizeof(this->keyblockbuffer))
146 {
147 ✗ GATEXX_RAISE_ERROR(results::InvalidArg);
148 }
149 4 Mem::copy(&this->keyblockbuffer[0], key, sizeof(this->keyblock));
150 4 }
151
152 1 void Xtea::encrypt(uint32_t* blocks, size_t block_count)
153 {
154 1 result_t result = gate_xtea_block_encrypt(blocks, block_count, this->keyblock);
155
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 1 GATEXX_CHECK_ERROR(result);
156 1 }
157 1 size_t Xtea::encrypt(void const* srcbuffer, void* dstbuffer, size_t length)
158 {
159 1 size_t ret = length - (length % GATE_XTEA_BLOCKLEN);
160
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 1 if (srcbuffer != dstbuffer)
161 {
162 1 gate_mem_copy(dstbuffer, srcbuffer, ret);
163 }
164 1 unsigned char* ptr = (unsigned char*)dstbuffer;
165
166 1 result_t result = gate_xtea_encrypt(ptr, ret, this->keyblockbuffer);
167
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 1 GATEXX_CHECK_ERROR(result);
168 1 return ret;
169 }
170 1 void Xtea::encrypt(Stream& instream, Stream& outstream)
171 {
172 1 gate_result_t result = gate_xtea_encrypt_stream(instream.c_impl(), outstream.c_impl(), this->keyblockbuffer);
173
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 1 GATEXX_CHECK_ERROR(result);
174 1 }
175
176 1 void Xtea::decrypt(uint32_t* blocks, size_t block_count)
177 {
178 1 result_t result = gate_xtea_block_decrypt(blocks, block_count, this->keyblock);
179
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 1 GATEXX_CHECK_EXCEPTION(result);
180 1 }
181 1 size_t Xtea::decrypt(void const* srcbuffer, void* dstbuffer, size_t length)
182 {
183 1 size_t ret = length - (length % GATE_XTEA_BLOCKLEN);
184
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 1 if (srcbuffer != dstbuffer)
185 {
186 1 gate_mem_copy(dstbuffer, srcbuffer, ret);
187 }
188 1 unsigned char* ptr = (unsigned char*)dstbuffer;
189
190 1 result_t result = gate_xtea_decrypt(ptr, ret, this->keyblockbuffer);
191
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 1 GATEXX_CHECK_EXCEPTION(result);
192 1 return ret;
193 }
194 1 void Xtea::decrypt(Stream& instream, Stream& outstream)
195 {
196 1 gate_result_t result = gate_xtea_decrypt_stream(instream.c_impl(), outstream.c_impl(), this->keyblockbuffer);
197
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 1 GATEXX_CHECK_ERROR(result);
198 1 }
199
200
201
202 ✗ Xxtea::Xxtea(uint32_t const key[4])
203 {
204 ✗ for (size_t n = 0; n != 4; ++n)
205 {
206 ✗ this->keyblock[n] = key[n];
207 }
208 ✗ Mem::clear(this->keyblockbuffer, sizeof(this->keyblockbuffer));
209 ✗ }
210 4 Xxtea::Xxtea(char const* key, size_t keylength)
211 {
212
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 4 if (keylength < sizeof(this->keyblockbuffer))
213 {
214 ✗ GATEXX_RAISE_ERROR(results::InvalidArg);
215 }
216 4 Mem::copy(&this->keyblockbuffer[0], key, sizeof(this->keyblock));
217 4 }
218
219 1 void Xxtea::encrypt(uint32_t* blocks, size_t block_count)
220 {
221 1 result_t result = gate_xxtea_block_encrypt(blocks, block_count, this->keyblock);
222
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 1 GATEXX_CHECK_ERROR(result);
223 1 }
224 1 size_t Xxtea::encrypt(void const* srcbuffer, void* dstbuffer, size_t length)
225 {
226 1 size_t ret = length - (length % GATE_XTEA_BLOCKLEN);
227
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 1 if (srcbuffer != dstbuffer)
228 {
229 1 gate_mem_copy(dstbuffer, srcbuffer, ret);
230 }
231 1 unsigned char* ptr = (unsigned char*)dstbuffer;
232
233 1 result_t result = gate_xxtea_encrypt(ptr, ret, this->keyblockbuffer);
234
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 1 GATEXX_CHECK_ERROR(result);
235 1 return ret;
236 }
237 1 void Xxtea::encrypt(Stream& instream, Stream& outstream)
238 {
239 1 gate_result_t result = gate_xxtea_encrypt_stream(instream.c_impl(), outstream.c_impl(), this->keyblockbuffer);
240
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 1 GATEXX_CHECK_ERROR(result);
241 1 }
242
243 1 void Xxtea::decrypt(uint32_t* blocks, size_t block_count)
244 {
245 1 result_t result = gate_xxtea_block_decrypt(blocks, block_count, this->keyblock);
246
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 1 GATEXX_CHECK_EXCEPTION(result);
247 1 }
248 1 size_t Xxtea::decrypt(void const* srcbuffer, void* dstbuffer, size_t length)
249 {
250 1 size_t ret = length - (length % GATE_XTEA_BLOCKLEN);
251
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 1 if (srcbuffer != dstbuffer)
252 {
253 1 gate_mem_copy(dstbuffer, srcbuffer, ret);
254 }
255 1 unsigned char* ptr = (unsigned char*)dstbuffer;
256
257 1 result_t result = gate_xxtea_decrypt(ptr, ret, this->keyblockbuffer);
258
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 1 GATEXX_CHECK_EXCEPTION(result);
259 1 return ret;
260 }
261 1 void Xxtea::decrypt(Stream& instream, Stream& outstream)
262 {
263 1 gate_result_t result = gate_xxtea_decrypt_stream(instream.c_impl(), outstream.c_impl(), this->keyblockbuffer);
264
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 1 GATEXX_CHECK_ERROR(result);
265 1 }
266
267
268 } // end of namespace enc
269 } // end of namespace gate
270