C# Class GSF.Security.Cryptography.Random

Generates cryptographically strong random numbers.

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Public Methods

Method	Description
Between ( double startNumber, double stopNumber ) : double	Generates a semi cryptographically strong random integer between specified values. i.e. [startNumber-stopNumber)
ByteBetween ( byte startNumber, byte stopNumber ) : byte	Generates a cryptographically strong 8-bit random integer between specified values. i.e. [startNumber-stopNumber)
GetBytes ( byte buffer ) : void	Fills an array of bytes with a cryptographically strong sequence of random values. The length of the byte array determines how many cryptographically strong random bytes are produced. This method is thread safe.
Int16Between ( short startNumber, short stopNumber ) : short	Generates a cryptographically strong 16-bit random integer between specified values. i.e. [startNumber-stopNumber)
Int24Between ( Int24 startNumber, Int24 stopNumber ) : Int24	Generates a cryptographically strong 24-bit random integer between specified values. i.e. [startNumber-stopNumber)
Int24Between ( System.UInt24 startNumber, System.UInt24 stopNumber ) : System.UInt24	Generates a cryptographically strong unsigned 24-bit random integer between specified values. i.e. [startNumber-stopNumber)
Int32Between ( int startNumber, int stopNumber ) : int	Generates a cryptographically strong 32-bit random integer between specified values. i.e. [startNumber-stopNumber)
Int64Between ( long startNumber, long stopNumber ) : long	Generates a cryptographically strong 64-bit random integer between specified values. i.e. [startNumber-stopNumber)
UInt16Between ( ushort startNumber, ushort stopNumber ) : ushort	Generates a cryptographically strong unsigned 16-bit random integer between specified values. i.e. [startNumber-stopNumber)
UInt32Between ( uint startNumber, uint stopNumber ) : uint	Generates a cryptographically strong unsigned 32-bit random integer between specified values. i.e. [startNumber-stopNumber)
UInt64Between ( ulong startNumber, ulong stopNumber ) : ulong	Generates a cryptographically strong unsigned 64-bit random integer between specified values. i.e. [startNumber-stopNumber)

Private Methods

Method	Description
GetRandomNumberLessThan ( int maxValue ) : int	Returns a cryptographically strong number that is less the the supplied value A number less than a negative number rolls down to int.MinValue, then to int.MaxValue if 0 is provided, 0 is returned
GetRandomNumberLessThan ( long maxValue ) : long	Returns a cryptographically strong number that is less the the supplied value A number less than a negative number rolls down to long.MinValue, then to long.MaxValue if 0 is provided, 0 is returned
GetRandomNumberLessThan ( uint maxValue ) : uint	Returns a cryptographically strong number that is less than the the supplied value if 0 is provided, 0 is returned
GetRandomNumberLessThan ( ulong maxValue ) : ulong	Returns a cryptographically strong number that is less than the the supplied value if 0 is provided, 0 is returned

Method Details

Between() public static method

Generates a semi cryptographically strong random integer between specified values. i.e. [startNumber-stopNumber)

The cryptographic service provider (CSP) cannot be acquired.

public static Between ( double startNumber, double stopNumber ) : double
startNumber	double	A that is the low end of our range.
stopNumber	double	A that is the high end of our range.
return	double

ByteBetween() public static method

Generates a cryptographically strong 8-bit random integer between specified values. i.e. [startNumber-stopNumber)

The cryptographic service provider (CSP) cannot be acquired.

public static ByteBetween ( byte startNumber, byte stopNumber ) : byte
startNumber	byte	A that is the low end of our range.
stopNumber	byte	A that is the high end of our range.
return	byte

GetBytes() public static method

Fills an array of bytes with a cryptographically strong sequence of random values.

The length of the byte array determines how many cryptographically strong random bytes are produced.

This method is thread safe.

The cryptographic service provider (CSP) cannot be acquired. buffer is null.

public static GetBytes ( byte buffer ) : void
buffer	byte	The array to fill with a cryptographically strong sequence of random values.
return	void

Int16Between() public static method

Generates a cryptographically strong 16-bit random integer between specified values. i.e. [startNumber-stopNumber)

The cryptographic service provider (CSP) cannot be acquired.

public static Int16Between ( short startNumber, short stopNumber ) : short
startNumber	short	A that is the low end of our range.
stopNumber	short	A that is the high end of our range.
return	short

Int24Between() public static method

Generates a cryptographically strong 24-bit random integer between specified values. i.e. [startNumber-stopNumber)

The cryptographic service provider (CSP) cannot be acquired.

public static Int24Between ( Int24 startNumber, Int24 stopNumber ) : Int24
startNumber	Int24	A that is the low end of our range.
stopNumber	Int24	A that is the high end of our range.
return	Int24

Int24Between() public static method

Generates a cryptographically strong unsigned 24-bit random integer between specified values. i.e. [startNumber-stopNumber)

The cryptographic service provider (CSP) cannot be acquired.

public static Int24Between ( System.UInt24 startNumber, System.UInt24 stopNumber ) : System.UInt24
startNumber	System.UInt24	A that is the low end of our range.
stopNumber	System.UInt24	A that is the high end of our range.
return	System.UInt24

Int32Between() public static method

Generates a cryptographically strong 32-bit random integer between specified values. i.e. [startNumber-stopNumber)

The cryptographic service provider (CSP) cannot be acquired.

public static Int32Between ( int startNumber, int stopNumber ) : int
startNumber	int	A that is the low end of our range.
stopNumber	int	A that is the high end of our range.
return	int

Int64Between() public static method

Generates a cryptographically strong 64-bit random integer between specified values. i.e. [startNumber-stopNumber)

The cryptographic service provider (CSP) cannot be acquired.

public static Int64Between ( long startNumber, long stopNumber ) : long
startNumber	long	A that is the low end of our range.
stopNumber	long	A that is the high end of our range.
return	long

UInt16Between() public static method

Generates a cryptographically strong unsigned 16-bit random integer between specified values. i.e. [startNumber-stopNumber)

The cryptographic service provider (CSP) cannot be acquired.

public static UInt16Between ( ushort startNumber, ushort stopNumber ) : ushort
startNumber	ushort	A that is the low end of our range.
stopNumber	ushort	A that is the high end of our range.
return	ushort

UInt32Between() public static method

Generates a cryptographically strong unsigned 32-bit random integer between specified values. i.e. [startNumber-stopNumber)

The cryptographic service provider (CSP) cannot be acquired.

public static UInt32Between ( uint startNumber, uint stopNumber ) : uint
startNumber	uint	A that is the low end of our range.
stopNumber	uint	A that is the high end of our range.
return	uint

UInt64Between() public static method

Generates a cryptographically strong unsigned 64-bit random integer between specified values. i.e. [startNumber-stopNumber)

The cryptographic service provider (CSP) cannot be acquired.

public static UInt64Between ( ulong startNumber, ulong stopNumber ) : ulong
startNumber	ulong	A that is the low end of our range.
stopNumber	ulong	A that is the high end of our range.
return	ulong