org.apache.commons.compress.archivers.zip

Class PKWareExtraHeader

  • All Implemented Interfaces:
    ZipExtraField
    Direct Known Subclasses:
    X0014_X509Certificates, X0015_CertificateIdForFile, X0016_CertificateIdForCentralDirectory, X0017_StrongEncryptionHeader, X0019_EncryptionRecipientCertificateList


    public abstract class PKWareExtraHeaderextends Objectimplements ZipExtraField
    Base class for all PKWare strong crypto extra headers.

    This base class acts as a marker so you know you can ignore all extra fields that extend this class if you are not interested in the meta data of PKWare strong encryption.

    Algorithm IDs - integer identifier of the encryption algorithm from the following range
    • 0x6601 - DES
    • 0x6602 - RC2 (version needed to extract < 5.2)
    • 0x6603 - 3DES 168
    • 0x6609 - 3DES 112
    • 0x660E - AES 128
    • 0x660F - AES 192
    • 0x6610 - AES 256
    • 0x6702 - RC2 (version needed to extract >= 5.2)
    • 0x6720 - Blowfish
    • 0x6721 - Twofish
    • 0x6801 - RC4
    • 0xFFFF - Unknown algorithm
    Hash Algorithms - integer identifier of the hash algorithm from the following range
    • 0x0000 - none
    • 0x0001 - CRC32
    • 0x8003 - MD5
    • 0x8004 - SHA1
    • 0x8007 - RIPEMD160
    • 0x800C - SHA256
    • 0x800D - SHA384
    • 0x800E - SHA512
    Since:
    1.11

Copyright © 2016 The Apache Software Foundation. All rights reserved.



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