org.h2.security

类 SecureFileStore

java.lang.Object

org.h2.store.FileStore

org.h2.security.SecureFileStore

public class SecureFileStore
extends FileStore

A file store that encrypts all data before writing, and decrypts all data after reading. Areas that were never written to (for example after calling setLength to enlarge the file) are not encrypted (contains 0 bytes).

字段概要

从类继承的字段 org.h2.store.FileStore

HEADER_LENGTH, name

构造器概要

构造器

构造器和说明
SecureFileStore(DataHandler handler, String name, String mode, String cipher, byte[] key, int keyIterations)

方法概要

限定符和类型	方法和说明
protected byte[]	generateSalt() Generate the random salt bytes if required.
protected void	initKey(byte[] salt) Initialize the key using the given salt.
void	readFully(byte[] b, int off, int len) Read a number of bytes.
void	readFullyDirect(byte[] b, int off, int len) Read a number of bytes without decrypting.
void	seek(long x) Go to the specified file location.
void	write(byte[] b, int off, int len) Write a number of bytes.
protected void	writeDirect(byte[] b, int off, int len) Write a number of bytes without encrypting.

从类继承的方法 org.h2.store.FileStore

autoDelete, close, closeAndDeleteSilently, closeFile, closeSilently, getFilePointer, init, length, open, open, open, openFile, releaseLock, setCheckedWriting, setLength, stopAutoDelete, sync, tryLock

从类继承的方法 java.lang.Object

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

构造器详细资料

SecureFileStore

public SecureFileStore(DataHandler handler,
                       String name,
                       String mode,
                       String cipher,
                       byte[] key,
                       int keyIterations)

方法详细资料

generateSalt

protected byte[] generateSalt()

从类复制的说明: FileStore

Generate the random salt bytes if required.

覆盖:

generateSalt 在类中 FileStore

返回:

the random salt or the magic

initKey

protected void initKey(byte[] salt)

从类复制的说明: FileStore

Initialize the key using the given salt.

覆盖:

initKey 在类中 FileStore

参数:

salt - the salt

writeDirect

protected void writeDirect(byte[] b,
                           int off,
                           int len)

从类复制的说明: FileStore

Write a number of bytes without encrypting.

覆盖:

writeDirect 在类中 FileStore

参数:

b - the source buffer

off - the offset

len - the number of bytes to write

write

public void write(byte[] b,
                  int off,
                  int len)

从类复制的说明: FileStore

Write a number of bytes.

覆盖:

write 在类中 FileStore

参数:

b - the source buffer

off - the offset

len - the number of bytes to write

readFullyDirect

public void readFullyDirect(byte[] b,
                            int off,
                            int len)

从类复制的说明: FileStore

Read a number of bytes without decrypting.

覆盖:

readFullyDirect 在类中 FileStore

参数:

b - the target buffer

off - the offset

len - the number of bytes to read

readFully

public void readFully(byte[] b,
                      int off,
                      int len)

从类复制的说明: FileStore

Read a number of bytes.

覆盖:

readFully 在类中 FileStore

参数:

b - the target buffer

off - the offset

len - the number of bytes to read

seek

public void seek(long x)

从类复制的说明: FileStore

Go to the specified file location.

覆盖:

seek 在类中 FileStore

参数:

x - the location