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