xref: /aosp_15_r20/external/cronet/crypto/random.cc (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b)
1*6777b538SAndroid Build Coastguard Worker // Copyright 2012 The Chromium Authors
2*6777b538SAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be
3*6777b538SAndroid Build Coastguard Worker // found in the LICENSE file.
4*6777b538SAndroid Build Coastguard Worker 
5*6777b538SAndroid Build Coastguard Worker #include "crypto/random.h"
6*6777b538SAndroid Build Coastguard Worker 
7*6777b538SAndroid Build Coastguard Worker #include <stddef.h>
8*6777b538SAndroid Build Coastguard Worker 
9*6777b538SAndroid Build Coastguard Worker #include <vector>
10*6777b538SAndroid Build Coastguard Worker 
11*6777b538SAndroid Build Coastguard Worker #include "base/rand_util.h"
12*6777b538SAndroid Build Coastguard Worker 
13*6777b538SAndroid Build Coastguard Worker namespace crypto {
14*6777b538SAndroid Build Coastguard Worker 
RandBytes(void * bytes,size_t length)15*6777b538SAndroid Build Coastguard Worker void RandBytes(void *bytes, size_t length) {
16*6777b538SAndroid Build Coastguard Worker   // It's OK to call base::RandBytes(), because it's already strongly random.
17*6777b538SAndroid Build Coastguard Worker   // But _other_ code should go through this function to ensure that code which
18*6777b538SAndroid Build Coastguard Worker   // needs secure randomness is easily discoverable.
19*6777b538SAndroid Build Coastguard Worker   base::RandBytes(bytes, length);
20*6777b538SAndroid Build Coastguard Worker }
21*6777b538SAndroid Build Coastguard Worker 
RandBytes(base::span<uint8_t> bytes)22*6777b538SAndroid Build Coastguard Worker void RandBytes(base::span<uint8_t> bytes) {
23*6777b538SAndroid Build Coastguard Worker   RandBytes(bytes.data(), bytes.size());
24*6777b538SAndroid Build Coastguard Worker }
25*6777b538SAndroid Build Coastguard Worker 
RandBytesAsVector(size_t length)26*6777b538SAndroid Build Coastguard Worker std::vector<uint8_t> RandBytesAsVector(size_t length) {
27*6777b538SAndroid Build Coastguard Worker   std::vector<uint8_t> result(length);
28*6777b538SAndroid Build Coastguard Worker   RandBytes(result);
29*6777b538SAndroid Build Coastguard Worker   return result;
30*6777b538SAndroid Build Coastguard Worker }
31*6777b538SAndroid Build Coastguard Worker 
32*6777b538SAndroid Build Coastguard Worker }  // namespace crypto
33*6777b538SAndroid Build Coastguard Worker 
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