What Is poi-5.2.3.jar?

What Is poi-5.2.3.jar?

✍: FYIcenter.com

poi-5.2.3.jar is one of the JAR files for Apache POI 5.2.3, which provides an API for Microsoft document files of Word, Excel, PowerPoint, and Visio.

poi-5.2.3.jar supports Apache POI components that read and write Microsoft's OLE 2 Compound document format, which is used in early versions of Microsoft Office tools like Word 97, Excel 97, PowerPoint 97, etc.

poi-5.2.3.jar is distributed as part of the poi-bin-5.2.3-20220909.zip download file.

JAR File Size and Download Location:

JAR name: poi-5.2.3.jar
Target JDK version: 9

File name: poi.jar, poi-5.2.3.jar
File size: 2964641 bytes
Release date: 09-09-2022
Download: Apache POI Website

Here are Java Source Code files for poi-5.2.3.jar:


/* ====================================================================
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at


   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   See the License for the specific language governing permissions and
   limitations under the License.
==================================================================== */
package org.apache.poi.poifs.crypt;

import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.function.Supplier;

import org.apache.poi.EncryptedDocumentException;
import org.apache.poi.common.Duplicatable;
import org.apache.poi.common.usermodel.GenericRecord;

 * Reads and processes OOXML Encryption Headers
 * The constants are largely based on ZIP constants.
public abstract class EncryptionHeader implements GenericRecord, Duplicatable {
    private int flags;
    private int sizeExtra;
    private CipherAlgorithm cipherAlgorithm;
    private HashAlgorithm hashAlgorithm;
    private int keyBits;
    private int blockSize;
    private CipherProvider providerType;
    private ChainingMode chainingMode;
    private byte[] keySalt;
    private String cspName;

    protected EncryptionHeader() {}

    protected EncryptionHeader(EncryptionHeader other) {
        flags = other.flags;
        sizeExtra = other.sizeExtra;
        cipherAlgorithm = other.cipherAlgorithm;
        hashAlgorithm = other.hashAlgorithm;
        keyBits = other.keyBits;
        blockSize = other.blockSize;
        providerType = other.providerType;
        chainingMode = other.chainingMode;
        keySalt = (other.keySalt == null) ? null : other.keySalt.clone();
        cspName = other.cspName;

    public ChainingMode getChainingMode() {
        return chainingMode;

    protected void setChainingMode(ChainingMode chainingMode) {
        this.chainingMode = chainingMode;

    public int getFlags() {
        return flags;

    public void setFlags(int flags) {
        this.flags = flags;

    public int getSizeExtra() {
        return sizeExtra;

    public void setSizeExtra(int sizeExtra) {
        this.sizeExtra = sizeExtra;

    public CipherAlgorithm getCipherAlgorithm() {
        return cipherAlgorithm;

    public void setCipherAlgorithm(CipherAlgorithm cipherAlgorithm) {
        this.cipherAlgorithm = cipherAlgorithm;
        if (cipherAlgorithm.allowedKeySize.length == 1) {

    public HashAlgorithm getHashAlgorithm() {
        return hashAlgorithm;

    public void setHashAlgorithm(HashAlgorithm hashAlgorithm) {
        this.hashAlgorithm = hashAlgorithm;

    public int getKeySize() {
        return keyBits;

     * Sets the keySize (in bits). Before calling this method, make sure
     * to set the cipherAlgorithm, as the amount of keyBits gets validated against
     * the list of allowed keyBits of the corresponding cipherAlgorithm
    public void setKeySize(int keyBits) {
        this.keyBits = keyBits;
        for (int allowedBits : getCipherAlgorithm().allowedKeySize) {
            if (allowedBits == keyBits) {
        throw new EncryptedDocumentException("KeySize "+keyBits+" not allowed for cipher "+getCipherAlgorithm());

    public int getBlockSize() {
        return blockSize;

    public void setBlockSize(int blockSize) {
        this.blockSize = blockSize;

    public byte[] getKeySalt() {
        return keySalt;

    public void setKeySalt(byte[] salt) {
        this.keySalt = (salt == null) ? null : salt.clone();

    public CipherProvider getCipherProvider() {
        return providerType;

    public void setCipherProvider(CipherProvider providerType) {
        this.providerType = providerType;

    public String getCspName() {
        return cspName;

    public void setCspName(String cspName) {
        this.cspName = cspName;

    public abstract EncryptionHeader copy();

    public Map<String, Supplier<?>> getGenericProperties() {
        final Map<String,Supplier<?>> m = new LinkedHashMap<>();
        m.put("flags", this::getFlags);
        m.put("sizeExtra", this::getSizeExtra);
        m.put("cipherAlgorithm", this::getCipherAlgorithm);
        m.put("hashAlgorithm", this::getHashAlgorithm);
        m.put("keyBits", this::getKeySize);
        m.put("blockSize", this::getBlockSize);
        m.put("providerType", this::getCipherProvider);
        m.put("chainingMode", this::getChainingMode);
        m.put("keySalt", this::getKeySalt);
        m.put("cspName", this::getCspName);
        return Collections.unmodifiableMap(m);


Or download all of them as a single archive file:

File name: poi-5.2.3-src.zip
File size: 2479830 bytes
Release date: 2022-09-09


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