com.itextpdf.text.pdf.security
Class DigestAlgorithms

java.lang.Object
  com.itextpdf.text.pdf.security.DigestAlgorithms

public class DigestAlgorithms
extends Object

Class that contains a map with the different message digest algorithms.

Field Summary

static String	RIPEMD160 Algorithm available for signatures since PDF 1.7
static String	SHA1 Algorithm available for signatures since PDF 1.3
static String	SHA256 Algorithm available for signatures since PDF 1.6
static String	SHA384 Algorithm available for signatures since PDF 1.7
static String	SHA512 Algorithm available for signatures since PDF 1.7

Constructor Summary

DigestAlgorithms()

Method Summary

static String	getAllowedDigests(String name) Returns the id of a digest algorithms that is allowed in PDF, or null if it isn't allowed.
static String	getDigest(String oid) Gets the digest name for a certain id

Methods inherited from class java.lang.Object

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

Field Detail

SHA1

public static final String SHA1

Algorithm available for signatures since PDF 1.3

See Also:

Constant Field Values

SHA256

public static final String SHA256

Algorithm available for signatures since PDF 1.6

See Also:

Constant Field Values

SHA384

public static final String SHA384

Algorithm available for signatures since PDF 1.7

See Also:

Constant Field Values

SHA512

public static final String SHA512

Algorithm available for signatures since PDF 1.7

See Also:

Constant Field Values

RIPEMD160

public static final String RIPEMD160

Algorithm available for signatures since PDF 1.7

See Also:

Constant Field Values

Constructor Detail

DigestAlgorithms

public DigestAlgorithms()

Method Detail

getDigest

public static String getDigest(String oid)

Gets the digest name for a certain id

Parameters:

oid - an id (for instance "1.2.840.113549.2.5")

Returns:

a digest name (for instance "MD5")

getAllowedDigests

public static String getAllowedDigests(String name)

Returns the id of a digest algorithms that is allowed in PDF, or null if it isn't allowed.

Parameters:

name - the name of the digest algorithm

Returns:

an oid