1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
|
/*
* (C) 2014,2015,2016 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include "tests.h"
#if defined(BOTAN_HAS_STREAM_CIPHER)
#include <botan/stream_cipher.h>
#endif
namespace Botan_Tests {
#if defined(BOTAN_HAS_STREAM_CIPHER)
class Stream_Cipher_Tests final : public Text_Based_Test
{
public:
Stream_Cipher_Tests(): Text_Based_Test("stream", "Key,Out", "In,Nonce,Seek") {}
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> expected = vars.get_req_bin("Out");
const std::vector<uint8_t> nonce = vars.get_opt_bin("Nonce");
const size_t seek = vars.get_opt_sz("Seek", 0);
std::vector<uint8_t> input = vars.get_opt_bin("In");
if(input.empty())
{
input.resize(expected.size());
}
Test::Result result(algo);
const std::vector<std::string> providers =
provider_filter(Botan::StreamCipher::providers(algo));
if(providers.empty())
{
result.note_missing("stream cipher " + algo);
return result;
}
for(auto const& provider_ask : providers)
{
std::unique_ptr<Botan::StreamCipher> cipher(Botan::StreamCipher::create(algo, provider_ask));
if(!cipher)
{
result.test_failure("Stream " + algo + " supported by " + provider_ask + " but not found");
continue;
}
const std::string provider(cipher->provider());
result.test_is_nonempty("provider", provider);
result.test_eq(provider, cipher->name(), algo);
try
{
std::vector<uint8_t> buf(128);
cipher->cipher1(buf.data(), buf.size());
result.test_failure("Was able to encrypt without a key being set");
}
catch(Botan::Invalid_State&)
{
result.test_success("Trying to encrypt with no key set fails");
}
try
{
cipher->seek(0);
result.test_failure("Was able to seek without a key being set");
}
catch(Botan::Invalid_State&)
{
result.test_success("Trying to seek with no key set fails");
}
catch(Botan::Not_Implemented&)
{
result.test_success("Trying to seek failed because not implemented");
}
cipher->set_key(key);
/*
Test invalid nonce sizes. this assumes no implemented cipher supports a nonce of 65000
*/
const size_t large_nonce_size = 65000;
result.confirm("Stream cipher does not support very large nonce", cipher->valid_iv_length(large_nonce_size) == false);
result.test_throws("Throws if invalid nonce size given",
[&]() { cipher->set_iv(nullptr, large_nonce_size); });
if(nonce.size())
{
if(!cipher->valid_iv_length(nonce.size()))
{
throw Test_Error("Invalid nonce for " + algo);
}
cipher->set_iv(nonce.data(), nonce.size());
}
else
{
/*
* If no nonce was set then implicitly the cipher is using a
* null/empty nonce. Call set_iv with such a nonce to make sure
* set_iv accepts it.
*/
if(!cipher->valid_iv_length(0))
{
throw Test_Error("Stream cipher " + algo + " requires nonce but none provided");
}
cipher->set_iv(nullptr, 0);
}
if(seek != 0)
{
cipher->seek(seek);
}
// Test that clone works and does not affect parent object
std::unique_ptr<Botan::StreamCipher> clone(cipher->clone());
result.confirm("Clone has different pointer", cipher.get() != clone.get());
result.test_eq("Clone has same name", cipher->name(), clone->name());
clone->set_key(Test::rng().random_vec(cipher->maximum_keylength()));
{
std::vector<uint8_t> buf = input;
cipher->encrypt(buf);
result.test_eq(provider, "encrypt", buf, expected);
}
cipher->clear();
try
{
std::vector<uint8_t> buf(128);
cipher->cipher1(buf.data(), buf.size());
result.test_failure("Was able to encrypt without a key being set (after clear)");
}
catch(Botan::Invalid_State&)
{
result.test_success("Trying to encrypt with no key set (after clear) fails");
}
}
return result;
}
};
BOTAN_REGISTER_TEST("stream", Stream_Cipher_Tests);
#endif
}
|
