Wrapper class for /dev/random and /dev/srandom. More...
#include <osrng.h>
Inheritance diagram for BlockingRng:
Public Member Functions | |
| BlockingRng () | |
| Construct a BlockingRng. | |
| void | GenerateBlock (byte *output, size_t size) |
| Generate random array of bytes. More... | |
| Public Member Functions inherited from RandomNumberGenerator | |
| virtual void | IncorporateEntropy (const byte *input, size_t length) |
| Update RNG state with additional unpredictable values. More... | |
| virtual bool | CanIncorporateEntropy () const |
| Determines if a generator can accept additional entropy. More... | |
| virtual byte | GenerateByte () |
| Generate new random byte and return it. More... | |
| virtual unsigned int | GenerateBit () |
| Generate new random bit and return it. More... | |
| virtual word32 | GenerateWord32 (word32 min=0, word32 max=0xffffffffUL) |
| Generate a random 32 bit word in the range min to max, inclusive. More... | |
| virtual void | GenerateBlock (byte *output, size_t size) |
| Generate random array of bytes. More... | |
| virtual void | GenerateIntoBufferedTransformation (BufferedTransformation &target, const std::string &channel, lword length) |
| Generate random bytes into a BufferedTransformation. More... | |
| virtual void | DiscardBytes (size_t n) |
| Generate and discard n bytes. More... | |
| template<class IT > | |
| void | Shuffle (IT begin, IT end) |
| Randomly shuffle the specified array. More... | |
| Public Member Functions inherited from Algorithm | |
| Algorithm (bool checkSelfTestStatus=true) | |
| Interface for all crypto algorithms. More... | |
| virtual std::string | AlgorithmName () const |
| Provides the name of this algorithm. More... | |
| virtual std::string | AlgorithmProvider () const |
| Retrieve the provider of this algorithm. More... | |
| Public Member Functions inherited from Clonable | |
| virtual Clonable * | Clone () const |
| Copies this object. More... | |
Static Public Member Functions | |
| static const char * | StaticAlgorithmName () |
Detailed Description
Wrapper class for /dev/random and /dev/srandom.
Encapsulates /dev/random on Linux, OS X and Unix; and /dev/srandom on the BSDs.
- Note
- On Linux the /dev/random interface is effectively deprecated. According to the Kernel Crypto developers, /dev/urandom or getrandom(2) should be used instead. Also see [RFC PATCH v12 3/4] Linux Random Number Generator on the kernel-crypto mailing list.
Member Function Documentation
◆ StaticAlgorithmName()
|
inlinestatic |
◆ GenerateBlock()
|
virtual |
Generate random array of bytes.
- Parameters
-
output the byte buffer size the length of the buffer, in bytes
GenerateIntoBufferedTransformation() calls are routed to GenerateBlock().
Reimplemented from RandomNumberGenerator.
The documentation for this class was generated from the following file:
