Package org.activecomponents.udp

Class WinCrypt

java.lang.Object

org.activecomponents.udp.WinCrypt

public class WinCrypt
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	JNA_LIBRARY_NAME
static com.sun.jna.NativeLibrary	JNA_NATIVE_LIB
static int	PROV_RSA_FULL

Constructor Summary

Constructors

Constructor	Description
WinCrypt()

Method Summary

Modifier and Type	Method	Description
static com.sun.jna.platform.win32.WinDef.BOOL	CryptAcquireContextW(com.sun.jna.Pointer phProv, com.sun.jna.WString pszContainer, com.sun.jna.WString pszProvider, int dwProvType, int dwFlags)	Acquires the crypt context.
static com.sun.jna.platform.win32.WinDef.BOOL	CryptGenRandom(com.sun.jna.platform.win32.WinDef.ULONG hProv, int dwLen, com.sun.jna.Pointer pbBuffer)	Generates random data.
static com.sun.jna.platform.win32.WinDef.BOOL	CryptReleaseContext(com.sun.jna.platform.win32.WinDef.ULONG hProv, int dwFlags)	Releases the crypt context.
static byte[]	getRandomFromWindows(int numBytes)	Gets random numbers from Windows API.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

JNA_LIBRARY_NAME

public static final java.lang.String JNA_LIBRARY_NAME

See Also:

Constant Field Values

JNA_NATIVE_LIB

public static final com.sun.jna.NativeLibrary JNA_NATIVE_LIB

PROV_RSA_FULL

public static final int PROV_RSA_FULL

See Also:

Constant Field Values

Constructor Detail

WinCrypt

public WinCrypt()

Method Detail

CryptAcquireContextW

public static com.sun.jna.platform.win32.WinDef.BOOL CryptAcquireContextW(com.sun.jna.Pointer phProv,
                                                                          com.sun.jna.WString pszContainer,
                                                                          com.sun.jna.WString pszProvider,
                                                                          int dwProvType,
                                                                          int dwFlags)

Acquires the crypt context.

CryptReleaseContext

public static com.sun.jna.platform.win32.WinDef.BOOL CryptReleaseContext(com.sun.jna.platform.win32.WinDef.ULONG hProv,
                                                                         int dwFlags)

Releases the crypt context.

CryptGenRandom

public static com.sun.jna.platform.win32.WinDef.BOOL CryptGenRandom(com.sun.jna.platform.win32.WinDef.ULONG hProv,
                                                                    int dwLen,
                                                                    com.sun.jna.Pointer pbBuffer)

Generates random data.

getRandomFromWindows

public static byte[] getRandomFromWindows(int numBytes)

Gets random numbers from Windows API.

Parameters:

numBytes - Number of bytes requested.

Returns:

Random data, null on failure.