Class MD5Decryptor
Represents an MD5Decryptor.
Inheritance
Namespace: Syncfusion.XlsIO.Implementation.Security
Assembly: Syncfusion.XlsIO.Portable.dll
Syntax
public class MD5Decryptor : Object, IDecryptor, IEncryptorConstructors
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. |