76 lines
3.5 KiB
Java
76 lines
3.5 KiB
Java
/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.poifs.crypt;
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import org.apache.poi.EncryptedDocumentException;
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public enum HashAlgorithm {
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none ( "", 0x0000, "", 0, "", false),
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sha1 ( "SHA-1", 0x8004, "SHA1", 20, "HmacSHA1", false),
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sha256 ( "SHA-256", 0x800C, "SHA256", 32, "HmacSHA256", false),
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sha384 ( "SHA-384", 0x800D, "SHA384", 48, "HmacSHA384", false),
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sha512 ( "SHA-512", 0x800E, "SHA512", 64, "HmacSHA512", false),
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/* only for agile encryption */
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md5 ( "MD5", -1, "MD5", 16, "HmacMD5", false),
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// although sunjc2 supports md2, hmac-md2 is only supported by bouncycastle
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md2 ( "MD2", -1, "MD2", 16, "Hmac-MD2", true),
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md4 ( "MD4", -1, "MD4", 16, "Hmac-MD4", true),
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ripemd128("RipeMD128", -1, "RIPEMD-128", 16, "HMac-RipeMD128", true),
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ripemd160("RipeMD160", -1, "RIPEMD-160", 20, "HMac-RipeMD160", true),
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whirlpool("Whirlpool", -1, "WHIRLPOOL", 64, "HMac-Whirlpool", true),
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// only for xml signing
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sha224 ( "SHA-224", -1, "SHA224", 28, "HmacSHA224", true);
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;
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public final String jceId;
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public final int ecmaId;
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public final String ecmaString;
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public final int hashSize;
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public final String jceHmacId;
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public final boolean needsBouncyCastle;
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HashAlgorithm(String jceId, int ecmaId, String ecmaString, int hashSize, String jceHmacId, boolean needsBouncyCastle) {
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this.jceId = jceId;
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this.ecmaId = ecmaId;
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this.ecmaString = ecmaString;
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this.hashSize = hashSize;
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this.jceHmacId = jceHmacId;
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this.needsBouncyCastle = needsBouncyCastle;
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}
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public static HashAlgorithm fromEcmaId(int ecmaId) {
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for (HashAlgorithm ha : values()) {
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if (ha.ecmaId == ecmaId) return ha;
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}
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throw new EncryptedDocumentException("hash algorithm not found");
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}
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public static HashAlgorithm fromEcmaId(String ecmaString) {
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for (HashAlgorithm ha : values()) {
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if (ha.ecmaString.equals(ecmaString)) return ha;
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}
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throw new EncryptedDocumentException("hash algorithm not found");
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}
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public static HashAlgorithm fromString(String string) {
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for (HashAlgorithm ha : values()) {
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if (ha.ecmaString.equalsIgnoreCase(string) || ha.jceId.equalsIgnoreCase(string)) return ha;
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}
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throw new EncryptedDocumentException("hash algorithm not found");
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}
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} |