Class MD5Decryptor

Represents an MD5Decryptor.

Inheritance
System.Object
MD5Decryptor
Implements
Inherited Members
System.Object.ToString()
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: Syncfusion.XlsIO.Implementation.Security
Assembly: Syncfusion.XlsIO.Base.dll
Syntax
[CLSCompliant(false)]
public class MD5Decryptor : IDecryptor, IEncryptor

Constructors

MD5Decryptor()

Initializes a new instance of the MD5Decryptor class.

Declaration
public MD5Decryptor()

Methods

CheckPassword(String)

Checks the password.

Declaration
public bool CheckPassword(string password)
Parameters
Type Name Description
System.String password

The password.
Returns
Type Description
System.Boolean

Decrypt(DataProvider, Int32, Int32, Int64)

Decrypts data provider and writes data back into it.

Declaration
public void Decrypt(DataProvider provider, int offset, int length, long streamPos)
Parameters
Type Name Description
DataProvider provider

Provider to decrypt.
System.Int32 offset

Offset to the data.
System.Int32 length

Size of the data to decrypt.
System.Int64 streamPos

Record position in the stream position.

Decrypt(Byte[], Int32, Int32)

Decrypts buffer and puts resulting data back into it.

Declaration
public void Decrypt(byte[] buffer, int offset, int length)
Parameters
Type Name Description
System.Byte[] buffer

Buffer to decrypt.
System.Int32 offset

Offset to the data.
System.Int32 length

Size of the data to decrypt.

Decrypt(Stream)

Decrypts the stream.

Declaration
public MemoryStream Decrypt(Stream stream)
Parameters
Type Name Description
System.IO.Stream stream

The stream.
Returns
Type Description
System.IO.MemoryStream

Encrypt(DataProvider, Int32, Int32, Int64)

Encrypts DataProvider and writes result back into it.

Declaration
public void Encrypt(DataProvider provider, int offset, int length, long streamPosition)
Parameters
Type Name Description
DataProvider provider

Provider to encrypt.
System.Int32 offset

Offset to the first byte to encrypt.
System.Int32 length

Number of bytes to encrypt.
System.Int64 streamPosition

Position of the data in the stream.

Encrypt(Byte[], Int32, Int32, Int64)

Encrypts DataProvider and writes result back into it.

Declaration
public void Encrypt(byte[] data, int offset, int length, long streamPosition)
Parameters
Type Name Description
System.Byte[] data

Data to encrypt.
System.Int32 offset

Offset to the first byte to encrypt.
System.Int32 length

Number of bytes to encrypt.
System.Int64 streamPosition

Position of the data in the stream.

GetFilePassRecord()

Creates FilPassRecord that corresponds to this document. This method can only be called after encryption info was set.

Declaration
public FilePassRecord GetFilePassRecord()
Returns
Type Description
FilePassRecord

Created record.

SetDecryptionInfo(Byte[], Byte[], Byte[], String)

Sets information required to decrypt.

Declaration
public bool SetDecryptionInfo(byte[] docId, byte[] encryptedDocId, byte[] digest, string password)
Parameters
Type Name Description
System.Byte[] docId

Unique document id.
System.Byte[] encryptedDocId

Encrypted document id.
System.Byte[] digest

Digest used to verify the entered password.
System.String password

Password to use for verification and decryption.
Returns
Type Description
System.Boolean

SetEncryptionInfo(Byte[], String)

Sets information required to encrypt the document.

Declaration
public void SetEncryptionInfo(byte[] docId, string password)
Parameters
Type Name Description
System.Byte[] docId

Unique document id.
System.String password

Encryption password.

Implements