Package org.apache.commons.compress.archivers.sevenz

Class AES256SHA256Decoder

java.lang.Object

org.apache.commons.compress.archivers.sevenz.AbstractCoder

org.apache.commons.compress.archivers.sevenz.AES256SHA256Decoder

final class AES256SHA256Decoder
extends AbstractCoder

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static final class	AES256SHA256Decoder.AES256SHA256DecoderInputStream
private static final class	AES256SHA256Decoder.AES256SHA256DecoderOutputStream

Constructor Summary

Constructors

Constructor	Description
AES256SHA256Decoder()

Method Summary

Modifier and Type	Method	Description
(package private) InputStream	decode(String archiveName, InputStream in, long uncompressedLength, Coder coder, byte[] passwordBytes, int maxMemoryLimitInKb)	Decodes using stream that reads from in using the configured coder and password.
(package private) OutputStream	encode(OutputStream out, Object options)	Encodes using a stream that writes to out using the given configuration.
(package private) byte[]	getOptionsAsProperties(Object options)	Gets property bytes to write in a Folder block.
(package private) static byte[]	sha256Password(byte[] password, int numCyclesPower, byte[] salt)
(package private) static byte[]	sha256Password(char[] password, int numCyclesPower, byte[] salt)
(package private) static byte[]	utf16Decode(char[] chars)	Convenience method that encodes Unicode characters into bytes in UTF-16 (little-endian byte order) charset

Methods inherited from class org.apache.commons.compress.archivers.sevenz.AbstractCoder

getOptionsFromCoder, isOptionInstance, toInt

Methods inherited from class java.lang.Object

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

Constructor Details

AES256SHA256Decoder

AES256SHA256Decoder()

Method Details

sha256Password

static byte[] sha256Password(byte[] password,
 int numCyclesPower,
 byte[] salt)

sha256Password

static byte[] sha256Password(char[] password,
 int numCyclesPower,
 byte[] salt)

utf16Decode

static byte[] utf16Decode(char[] chars)

Convenience method that encodes Unicode characters into bytes in UTF-16 (little-endian byte order) charset

Parameters:

chars - characters to encode

Returns:

encoded characters

Since:

1.23

decode

InputStream decode(String archiveName,
 InputStream in,
 long uncompressedLength,
 Coder coder,
 byte[] passwordBytes,
 int maxMemoryLimitInKb)

Description copied from class: AbstractCoder

Decodes using stream that reads from in using the configured coder and password.

Specified by:

decode in class AbstractCoder

Returns:

a stream that reads from in using the configured coder and password.

encode

OutputStream encode(OutputStream out,
 Object options)
             throws IOException

Description copied from class: AbstractCoder

Encodes using a stream that writes to out using the given configuration.

Overrides:

encode in class AbstractCoder

Returns:

a stream that writes to out using the given configuration.

Throws:

IOException - Optionally thrown by subclassses.

getOptionsAsProperties

byte[] getOptionsAsProperties(Object options)
                       throws IOException

Description copied from class: AbstractCoder

Gets property bytes to write in a Folder block.

Overrides:

getOptionsAsProperties in class AbstractCoder

Returns:

property bytes to write in a Folder block.

Throws:

IOException - Optionally thrown by subclassses.