Class DocumentProtectionHash

Namespace

DocWright.Cryptography

Assembly

DocWright.Cryptography.dll

Computes and checks the password hashes on w:documentProtection and w:writeProtection.

These hashes are not a security boundary and DocWright does not treat them as one. Protection settings are a user-interface convenience: Word asks for the password before letting a person edit, and any program that ignores the setting edits anyway — including DocWright, which reports protection and never enforces it. What this class provides is the ability to answer "is this the password the document records?", and to record a new one.

public static class DocumentProtectionHash

Inheritance

object

DocumentProtectionHash

Inherited Members

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Fields

DefaultSaltSize

The salt length Word writes.

DefaultSpinCount

The spin count Word writes. Used when a caller does not choose one.

Methods

AlgorithmAttributeName(OfficeHashAlgorithmKind)

Returns the w:algorithmName spelling of an algorithm.

AlgorithmFromSid(int?)

Maps a w:cryptAlgorithmSid value onto an algorithm.

Compute(string, OfficeHashAlgorithmKind, byte[], int, ResourceLimits?)

Computes a protection hash.

SetDocumentProtectionPassword(DocumentProtection, string, ProtectionHashKind, OfficeHashAlgorithmKind, int, IRandomSource?)

Records a document-protection password on the settings, replacing any existing hash.

SetWriteProtectionPassword(DocumentProtection, string, OfficeHashAlgorithmKind, int, IRandomSource?)

Records a write-protection password on the settings.

SidFromAlgorithm(OfficeHashAlgorithmKind)

Maps an algorithm onto its w:cryptAlgorithmSid value.

VerifyDocumentProtection(DocumentProtection, string, ResourceLimits?)

Checks a password against the document-protection hash a document records.

VerifyWriteProtection(DocumentProtection, string, ResourceLimits?)

Checks a password against the write-protection hash a document records.