Chromium Code Reviews| Index: base/rand_util_nacl.cc |
| diff --git a/base/rand_util_nacl.cc b/base/rand_util_nacl.cc |
| index f9751217326b4c72730b98fa1018be49f12a4b1a..4bc8445e0d4bff43953a2625f5127cef88d756fa 100644 |
| --- a/base/rand_util_nacl.cc |
| +++ b/base/rand_util_nacl.cc |
| @@ -4,40 +4,38 @@ |
| #include "base/rand_util.h" |
| +#include <nacl/nacl_random.h> |
|
Peng
2014/06/17 19:14:46
Please ignore changes in base folder.
It is a temp
|
| + |
| #include "base/basictypes.h" |
| -#include "base/lazy_instance.h" |
| #include "base/logging.h" |
| -#include "native_client/src/untrusted/irt/irt.h" |
| namespace { |
| -class NaclRandom { |
| - public: |
| - NaclRandom() { |
| - const size_t result = |
| - nacl_interface_query(NACL_IRT_RANDOM_v0_1, &random_, sizeof(random_)); |
| - CHECK_EQ(result, sizeof(random_)); |
| - } |
| - |
| - ~NaclRandom() {} |
| +int i = 0; |
| - void GetRandomBytes(void* output, size_t num_bytes) { |
| +void GetRandomBytes(void* output, size_t num_bytes) { |
| + if (nacl_secure_random_init() == 0) { |
| char* output_ptr = static_cast<char*>(output); |
| while (num_bytes > 0) { |
| size_t nread; |
| - const int error = random_.get_random_bytes(output_ptr, num_bytes, &nread); |
| + const int error = nacl_secure_random(output_ptr, num_bytes, &nread); |
| CHECK_EQ(error, 0); |
| CHECK_LE(nread, num_bytes); |
| output_ptr += nread; |
| num_bytes -= nread; |
| } |
| + } else { |
| + char* output_ptr = static_cast<char*>(output); |
| + while (num_bytes > 0) { |
| + int r = (++i) + reinterpret_cast<int>(output_ptr); |
| + while (r >= 255) { |
| + r = r + ( r >> 8); |
| + } |
| + *output_ptr++ = r; |
| + num_bytes--; |
| + } |
| } |
| - |
| - private: |
| - nacl_irt_random random_; |
| -}; |
| - |
| -base::LazyInstance<NaclRandom>::Leaky g_nacl_random = LAZY_INSTANCE_INITIALIZER; |
| +} |
| } // namespace |
| @@ -46,12 +44,12 @@ namespace base { |
| // NOTE: This function must be cryptographically secure. http://crbug.com/140076 |
| uint64 RandUint64() { |
| uint64 result; |
| - g_nacl_random.Pointer()->GetRandomBytes(&result, sizeof(result)); |
| + GetRandomBytes(&result, sizeof(result)); |
| return result; |
| } |
| void RandBytes(void* output, size_t output_length) { |
| - g_nacl_random.Pointer()->GetRandomBytes(output, output_length); |
| + GetRandomBytes(output, output_length); |
| } |
| } // namespace base |