1 /*
2 **
3 ** Copyright 2017, The Android Open Source Project
4 **
5 ** Licensed under the Apache License, Version 2.0 (the "License");
6 ** you may not use this file except in compliance with the License.
7 ** You may obtain a copy of the License at
8 **
9 **     http://www.apache.org/licenses/LICENSE-2.0
10 **
11 ** Unless required by applicable law or agreed to in writing, software
12 ** distributed under the License is distributed on an "AS IS" BASIS,
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 ** See the License for the specific language governing permissions and
15 ** limitations under the License.
16 */
17 
18 #include <keymaster/km_openssl/software_random_source.h>
19 #include <openssl/rand.h>
20 
21 namespace keymaster {
22 
GenerateRandom(uint8_t * buffer,size_t length) const23 keymaster_error_t SoftwareRandomSource::GenerateRandom(uint8_t* buffer, size_t length) const {
24     if (RAND_bytes(buffer, length) != 1)
25         return KM_ERROR_UNKNOWN_ERROR;
26     return KM_ERROR_OK;
27 }
28 
29 }
30