Quadcap Embeddable Database

com.quadcap.sql.file.EncryptedBlockStore Class Reference

Inheritance diagram for com.quadcap.sql.file.EncryptedBlockStore:

List of all members.

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Detailed Description

Author:

Stan Bailes

Definition at line 22 of file EncryptedBlockStore.java.

Public Member Functions
	EncryptedBlockStore ()
	Create a new EncryptedBlockStore object using the specified file and blocksize.
void	setKey (SymmetricKey key) throws IOException
void	read (long blockNum, byte[] buf) throws IOException
	Read a block into a buffer.
void	write (long blockNum, byte[] buf) throws IOException
	Write a block from a buffer into the file.
Package Functions
byte[]	makeDigest (String s)
Package Attributes
SymmetricKey	key
Key	encrypt
Key	decrypt
byte[]	buf0
ByteBuffer	b0
Static Package Attributes
final int	oHASH_PASSWD_start = BlockFile.oHASH_PASSWD_start
final int	oHASH_PASSWD_len = BlockFile.oHASH_PASSWD_len

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Constructor & Destructor Documentation

com.quadcap.sql.file.EncryptedBlockStore.EncryptedBlockStore (   )

Create a new EncryptedBlockStore object using the specified file and blocksize. Parameters: file  the underlying file. ra  the randomly-accessible version of the file. blocksize  the block size to use for accessing the file. Definition at line 37 of file EncryptedBlockStore.java.

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Member Function Documentation

byte [] com.quadcap.sql.file.EncryptedBlockStore.makeDigest (  String  s  )  [package]

Definition at line 68 of file EncryptedBlockStore.java. References com.quadcap.crypto.Digest.digest(), com.quadcap.sql.file.EncryptedBlockStore.makeDigest(), and com.quadcap.crypto.Digest.update(). Referenced by com.quadcap.sql.file.EncryptedBlockStore.makeDigest(), and com.quadcap.sql.file.EncryptedBlockStore.setKey().

void com.quadcap.sql.file.EncryptedBlockStore.read (  long  blockNum, byte[]  buf )  throws IOException

Read a block into a buffer. If the specified block is beyond the current end of file, then grow the file Parameters: blockNum  the number of the block to read. buf  the buffer into which the data is read. Reimplemented from com.quadcap.sql.file.BlockStore. Definition at line 85 of file EncryptedBlockStore.java. References com.quadcap.sql.file.EncryptedBlockStore.b0, com.quadcap.sql.file.EncryptedBlockStore.buf0, com.quadcap.sql.file.EncryptedBlockStore.decrypt, and com.quadcap.sql.file.EncryptedBlockStore.read(). Referenced by com.quadcap.sql.file.EncryptedBlockStore.read().

void com.quadcap.sql.file.EncryptedBlockStore.setKey (  SymmetricKey  key  )  throws IOException

Definition at line 43 of file EncryptedBlockStore.java. References com.quadcap.sql.file.EncryptedBlockStore.b0, com.quadcap.sql.file.EncryptedBlockStore.buf0, com.quadcap.sql.file.BlockStore.isEncrypted(), com.quadcap.sql.file.EncryptedBlockStore.key, com.quadcap.sql.file.EncryptedBlockStore.makeDigest(), com.quadcap.sql.file.EncryptedBlockStore.oHASH_PASSWD_len, com.quadcap.sql.file.EncryptedBlockStore.oHASH_PASSWD_start, com.quadcap.sql.file.FileRandomAccess.read(), com.quadcap.sql.file.EncryptedBlockStore.setKey(), and com.quadcap.sql.file.FileRandomAccess.write(). Referenced by com.quadcap.sql.file.EncryptedBlockStore.setKey().

void com.quadcap.sql.file.EncryptedBlockStore.write (  long  blockNum, byte[]  buf )  throws IOException

Write a block from a buffer into the file. Parameters: blockNum  the number of the block to write. buf  the buffer from which the data is written. Exceptions: IOException  if an I/O error occurs. Reimplemented from com.quadcap.sql.file.BlockStore. Definition at line 106 of file EncryptedBlockStore.java. References com.quadcap.sql.file.EncryptedBlockStore.b0, com.quadcap.sql.file.EncryptedBlockStore.buf0, com.quadcap.sql.file.EncryptedBlockStore.encrypt, and com.quadcap.sql.file.EncryptedBlockStore.write(). Referenced by com.quadcap.sql.file.EncryptedBlockStore.write().

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Member Data Documentation

ByteBuffer com.quadcap.sql.file.EncryptedBlockStore.b0 [package]

Definition at line 27 of file EncryptedBlockStore.java. Referenced by com.quadcap.sql.file.EncryptedBlockStore.read(), com.quadcap.sql.file.EncryptedBlockStore.setKey(), and com.quadcap.sql.file.EncryptedBlockStore.write().

byte [] com.quadcap.sql.file.EncryptedBlockStore.buf0 [package]

Definition at line 26 of file EncryptedBlockStore.java. Referenced by com.quadcap.sql.file.EncryptedBlockStore.read(), com.quadcap.sql.file.EncryptedBlockStore.setKey(), and com.quadcap.sql.file.EncryptedBlockStore.write().

Key com.quadcap.sql.file.EncryptedBlockStore.decrypt [package]

Definition at line 25 of file EncryptedBlockStore.java. Referenced by com.quadcap.sql.file.EncryptedBlockStore.read().

Key com.quadcap.sql.file.EncryptedBlockStore.encrypt [package]

Definition at line 24 of file EncryptedBlockStore.java. Referenced by com.quadcap.sql.file.EncryptedBlockStore.write().

SymmetricKey com.quadcap.sql.file.EncryptedBlockStore.key [package]

Definition at line 23 of file EncryptedBlockStore.java. Referenced by com.quadcap.sql.file.EncryptedBlockStore.setKey().

final int com.quadcap.sql.file.EncryptedBlockStore.oHASH_PASSWD_len = BlockFile.oHASH_PASSWD_len [static, package]

Definition at line 41 of file EncryptedBlockStore.java. Referenced by com.quadcap.sql.file.EncryptedBlockStore.setKey().

final int com.quadcap.sql.file.EncryptedBlockStore.oHASH_PASSWD_start = BlockFile.oHASH_PASSWD_start [static, package]

Definition at line 40 of file EncryptedBlockStore.java. Referenced by com.quadcap.sql.file.EncryptedBlockStore.setKey().