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39 lines
1.5 KiB
C#
39 lines
1.5 KiB
C#
namespace SabreTools.Models.PKZIP
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{
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/// <summary>
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/// The FWKCS Contents_Signature System, used in
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/// automatically identifying files independent of file name,
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/// optionally adds and uses an extra field to support the
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/// rapid creation of an enhanced contents_signature.
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///
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/// When FWKCS revises a .ZIP file central directory to add
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/// this extra field for a file, it also replaces the
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/// central directory entry for that file's uncompressed
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/// file length with a measured value.
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///
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/// FWKCS provides an option to strip this extra field, if
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/// present, from a .ZIP file central directory. In adding
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/// this extra field, FWKCS preserves .ZIP file Authenticity
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/// Verification; if stripping this extra field, FWKCS
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/// preserves all versions of AV through PKZIP version 2.04g.
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///
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/// FWKCS, and FWKCS Contents_Signature System, are
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/// trademarks of Frederick W. Kantor.
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/// </summary>
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/// <remarks>Header ID = 0x4b46</remarks>
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/// <see href="https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT"/>
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public class FWKCSMD5ExtraField : ExtensibleDataField
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{
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/// <summary>
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/// "MD5"
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/// </summary>
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/// <remarks>3 bytes</remarks>
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public byte[]? Preface { get; set; }
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/// <summary>
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/// Uncompressed file's MD5 hash, low byte first
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/// </summary>
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/// <remarks>16 bytes</remarks>
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public byte[]? MD5 { get; set; }
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}
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} |