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
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
/*
* Copyright 2016 OpenMarket Ltd
* Copyright 2016 Vector Creations Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "olm_utility.h"
using namespace AndroidOlmSdk;
OlmUtility* initializeUtilityMemory()
{
OlmUtility* utilityPtr = NULL;
size_t utilitySize = olm_utility_size();
if(NULL != (utilityPtr=(OlmUtility*)malloc(utilitySize)))
{
utilityPtr = olm_utility(utilityPtr);
LOGD("## initializeUtilityMemory(): success - OLM utility size=%lu",static_cast<long unsigned int>(utilitySize));
}
else
{
LOGE("## initializeUtilityMemory(): failure - OOM");
}
return utilityPtr;
}
JNIEXPORT jlong OLM_UTILITY_FUNC_DEF(initUtilityJni)(JNIEnv *env, jobject thiz)
{
OlmUtility* utilityPtr = NULL;
LOGD("## initUtilityJni(): IN");
// init account memory allocation
if(NULL == (utilityPtr = initializeUtilityMemory()))
{
LOGE(" ## initUtilityJni(): failure - init OOM");
}
else
{
LOGD(" ## initUtilityJni(): success");
}
return (jlong)(intptr_t)utilityPtr;
}
JNIEXPORT void OLM_UTILITY_FUNC_DEF(releaseUtilityJni)(JNIEnv *env, jobject thiz)
{
OlmUtility* utilityPtr = NULL;
LOGD("## releaseUtilityJni(): IN");
if(NULL == (utilityPtr = (OlmUtility*)getUtilityInstanceId(env,thiz)))
{
LOGE("## releaseUtilityJni(): failure - utility ptr=NULL");
}
else
{
olm_clear_utility(utilityPtr);
free(utilityPtr);
}
}
/**
* Verify an ed25519 signature.
* If the key was too small then the message will be "OLM.INVALID_BASE64".
* If the signature was invalid then the message will be "OLM.BAD_MESSAGE_MAC".
*
* @param aSignature the base64-encoded message signature to be checked.
* @param aKey the ed25519 key (fingerprint key)
* @param aMessage the message which was signed
* @return 0 if validation succeed, an error message string if operation failed
*/
JNIEXPORT jstring OLM_UTILITY_FUNC_DEF(verifyEd25519SignatureJni)(JNIEnv *env, jobject thiz, jstring aSignature, jstring aKey, jstring aMessage)
{
jstring errorMessageRetValue = 0;
OlmUtility* utilityPtr = NULL;
const char* signaturePtr = NULL;
const char* keyPtr = NULL;
const char* messagePtr = NULL;
LOGD("## verifyEd25519SignatureJni(): IN");
if(NULL == (utilityPtr = (OlmUtility*)getUtilityInstanceId(env,thiz)))
{
LOGE(" ## verifyEd25519SignatureJni(): failure - invalid utility ptr=NULL");
}
else if((0 == aSignature) || (0 == aKey) || (0 == aMessage))
{
LOGE(" ## verifyEd25519SignatureJni(): failure - invalid input parameters ");
}
else if(0 == (signaturePtr = env->GetStringUTFChars(aSignature, 0)))
{
LOGE(" ## verifyEd25519SignatureJni(): failure - signature JNI allocation OOM");
}
else if(0 == (keyPtr = env->GetStringUTFChars(aKey, 0)))
{
LOGE(" ## verifyEd25519SignatureJni(): failure - key JNI allocation OOM");
}
else if(0 == (messagePtr = env->GetStringUTFChars(aMessage, 0)))
{
LOGE(" ## verifyEd25519SignatureJni(): failure - message JNI allocation OOM");
}
else
{
size_t signatureLength = (size_t)env->GetStringUTFLength(aSignature);
size_t keyLength = (size_t)env->GetStringUTFLength(aKey);
size_t messageLength = (size_t)env->GetStringUTFLength(aMessage);
LOGD(" ## verifyEd25519SignatureJni(): signatureLength=%lu keyLength=%lu messageLength=%lu",static_cast<long unsigned int>(signatureLength),static_cast<long unsigned int>(keyLength),static_cast<long unsigned int>(messageLength));
LOGD(" ## verifyEd25519SignatureJni(): key=%s",keyPtr);
size_t result = olm_ed25519_verify(utilityPtr,
(void const *)keyPtr,
keyLength,
(void const *)messagePtr,
messageLength,
(void*)signaturePtr,
signatureLength);
if(result == olm_error()) {
const char *errorMsgPtr = olm_utility_last_error(utilityPtr);
errorMessageRetValue = env->NewStringUTF(errorMsgPtr);
LOGE("## verifyEd25519SignatureJni(): failure - olm_ed25519_verify Msg=%s",errorMsgPtr);
}
else
{
LOGD("## verifyEd25519SignatureJni(): success - result=%lu", static_cast<long unsigned int>(result));
}
}
// free alloc
if(NULL != signaturePtr)
{
env->ReleaseStringUTFChars(aSignature, signaturePtr);
}
if(NULL != keyPtr)
{
env->ReleaseStringUTFChars(aKey, keyPtr);
}
if(NULL != messagePtr)
{
env->ReleaseStringUTFChars(aMessage, messagePtr);
}
return errorMessageRetValue;
}
/**
* Compute the digest (SHA 256) for the message passed in parameter.<br>
* The digest value is the function return value.
* @param aMessage
* @return digest of the message if operation succeed, null otherwise
**/
JNIEXPORT jstring OLM_UTILITY_FUNC_DEF(sha256Jni)(JNIEnv *env, jobject thiz, jstring aMessageToHash)
{
jstring sha256RetValue = 0;
OlmUtility* utilityPtr = NULL;
const char* messagePtr = NULL;
void *hashValuePtr = NULL;
LOGD("## sha256Jni(): IN");
if(NULL == (utilityPtr = (OlmUtility*)getUtilityInstanceId(env,thiz)))
{
LOGE(" ## sha256Jni(): failure - invalid utility ptr=NULL");
}
else if(0 == aMessageToHash)
{
LOGE(" ## sha256Jni(): failure - invalid message parameters ");
}
else if(0 == (messagePtr = env->GetStringUTFChars(aMessageToHash, 0)))
{
LOGE(" ## sha256Jni(): failure - message JNI allocation OOM");
}
else
{
// get lengths
size_t messageLength = (size_t)env->GetStringUTFLength(aMessageToHash);
size_t hashLength = olm_sha256_length(utilityPtr);
if(NULL == (hashValuePtr = static_cast<void*>(malloc((hashLength+1)*sizeof(uint8_t)))))
{
LOGE("## sha256Jni(): failure - hash value allocation OOM");
}
else
{
size_t result = olm_sha256(utilityPtr,
(void const *)messagePtr,
messageLength,
(void *)hashValuePtr,
hashLength);
if(result == olm_error())
{
LOGE("## sha256Jni(): failure - hash creation Msg=%s",(const char *)olm_utility_last_error(utilityPtr));
}
else
{
// update length
(static_cast<char*>(hashValuePtr))[result] = static_cast<char>('\0');
LOGD("## sha256Jni(): success - result=%lu hashValue=%s",static_cast<long unsigned int>(result), (char*)hashValuePtr);
sha256RetValue = env->NewStringUTF((const char*)hashValuePtr);
}
}
}
if(NULL != hashValuePtr)
{
free(hashValuePtr);
}
if(NULL != messagePtr)
{
env->ReleaseStringUTFChars(aMessageToHash, messagePtr);
}
return sha256RetValue;
}
|
