com.healthmarketscience.jackcess.impl.office

Class EncryptionHeader

java.lang.Object

com.healthmarketscience.jackcess.impl.office.EncryptionHeader

public class EncryptionHeader
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	EncryptionHeader.CryptoAlgorithm
static class	EncryptionHeader.HashAlgorithm

Field Summary

Fields

Modifier and Type	Field and Description
private EncryptionHeader.CryptoAlgorithm	_cryptoAlg
private java.lang.String	_cspName
private int	_flags
private EncryptionHeader.HashAlgorithm	_hashAlg
private int	_keySize
private int	_providerType
private int	_sizeExtra
private static int	ALGID_AES_128
private static int	ALGID_AES_192
private static int	ALGID_AES_256
private static int	ALGID_FLAGS
private static int	ALGID_RC4
private static java.lang.String	CSP_BASE_STRING
static int	FAES_FLAG
static int	FCRYPTO_API_FLAG
static int	FDOC_PROPS_FLAG
static int	FEXTERNAL_FLAG
private static int	HASHALGID_FLAGS
private static int	HASHALGID_SHA1
private static int	RC4_BASE_DEFAULT_KEY_SIZE
private static int	RC4_STRONG_DEFAULT_KEY_SIZE
static java.nio.charset.Charset	UNICODE_CHARSET

Constructor Summary

Constructors

Constructor and Description
EncryptionHeader(java.nio.ByteBuffer buffer)

Method Summary

Modifier and Type	Method and Description
EncryptionHeader.CryptoAlgorithm	getCryptoAlgorithm()
java.lang.String	getCspName()
int	getFlags()
EncryptionHeader.HashAlgorithm	getHashAlgorithm()
int	getKeySize()
int	getProviderType()
int	getSizeExtra()
static boolean	isFlagSet(int flagsVal, int flagMask)
private static EncryptionHeader.CryptoAlgorithm	parseCryptoAlgorithm(int algId, int flags)
private static EncryptionHeader.HashAlgorithm	parseHashAlgorithm(int algIdHash, int flags)
private static int	parseKeySize(int keySize, EncryptionHeader.CryptoAlgorithm cryptoAlg, java.lang.String cspName)
static EncryptionHeader	read(java.nio.ByteBuffer encProvBuf, java.util.Set<EncryptionHeader.CryptoAlgorithm> validCryptoAlgos, java.util.Set<EncryptionHeader.HashAlgorithm> validHashAlgos)
private static java.lang.String	readCspName(java.nio.ByteBuffer buffer)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

UNICODE_CHARSET

public static final java.nio.charset.Charset UNICODE_CHARSET

FCRYPTO_API_FLAG

public static final int FCRYPTO_API_FLAG

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Constant Field Values

FDOC_PROPS_FLAG

public static final int FDOC_PROPS_FLAG

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Constant Field Values

FEXTERNAL_FLAG

public static final int FEXTERNAL_FLAG

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Constant Field Values

FAES_FLAG

public static final int FAES_FLAG

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Constant Field Values

ALGID_FLAGS

private static final int ALGID_FLAGS

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Constant Field Values

ALGID_RC4

private static final int ALGID_RC4

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Constant Field Values

ALGID_AES_128

private static final int ALGID_AES_128

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Constant Field Values

ALGID_AES_192

private static final int ALGID_AES_192

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Constant Field Values

ALGID_AES_256

private static final int ALGID_AES_256

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Constant Field Values

HASHALGID_FLAGS

private static final int HASHALGID_FLAGS

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Constant Field Values

HASHALGID_SHA1

private static final int HASHALGID_SHA1

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Constant Field Values

CSP_BASE_STRING

private static final java.lang.String CSP_BASE_STRING

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Constant Field Values

RC4_BASE_DEFAULT_KEY_SIZE

private static final int RC4_BASE_DEFAULT_KEY_SIZE

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Constant Field Values

RC4_STRONG_DEFAULT_KEY_SIZE

private static final int RC4_STRONG_DEFAULT_KEY_SIZE

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Constant Field Values

_flags

private final int _flags

_sizeExtra

private final int _sizeExtra

_cryptoAlg

private final EncryptionHeader.CryptoAlgorithm _cryptoAlg

_hashAlg

private final EncryptionHeader.HashAlgorithm _hashAlg

_keySize

private final int _keySize

_providerType

private final int _providerType

_cspName

private final java.lang.String _cspName

Constructor Detail

EncryptionHeader

public EncryptionHeader(java.nio.ByteBuffer buffer)

Method Detail

getFlags

public int getFlags()

getSizeExtra

public int getSizeExtra()

getCryptoAlgorithm

public EncryptionHeader.CryptoAlgorithm getCryptoAlgorithm()

getHashAlgorithm

public EncryptionHeader.HashAlgorithm getHashAlgorithm()

getKeySize

public int getKeySize()

getProviderType

public int getProviderType()

getCspName

public java.lang.String getCspName()

read

public static EncryptionHeader read(java.nio.ByteBuffer encProvBuf,
                                    java.util.Set<EncryptionHeader.CryptoAlgorithm> validCryptoAlgos,
                                    java.util.Set<EncryptionHeader.HashAlgorithm> validHashAlgos)

parseCryptoAlgorithm

private static EncryptionHeader.CryptoAlgorithm parseCryptoAlgorithm(int algId,
                                                                     int flags)

parseHashAlgorithm

private static EncryptionHeader.HashAlgorithm parseHashAlgorithm(int algIdHash,
                                                                 int flags)

parseKeySize

private static int parseKeySize(int keySize,
                                EncryptionHeader.CryptoAlgorithm cryptoAlg,
                                java.lang.String cspName)

readCspName

private static java.lang.String readCspName(java.nio.ByteBuffer buffer)

isFlagSet

public static boolean isFlagSet(int flagsVal,
                                int flagMask)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object