TElPublicKeyCrypto.Sign method

TElPublicKeyCrypto.Sign

Signs the chunk of data

Declaration

[C#]
void Sign(byte[] InBuffer, int InIndex, int InSize, ref byte[] OutBuffer, int OutIndex, ref int OutSize);
void Sign(System.IO.Stream InStream, System.IO.Stream OutStream, int Count);

[VB.NET]
Sub Sign(ByVal InBuffer As Byte(), ByVal InIndex As Integer, ByVal InSize As Integer, ByRef OutBuffer As Byte(), ByVal OutIndex As Integer, ByRef OutSize As Integer)
Sub Sign(ByVal InStream As System.IO.Stream, ByVal OutStream As System.IO.Stream, ByVal Count As Integer)

[Pascal]
procedure Sign(InBuffer: pointer; InSize: integer; OutBuffer: pointer; var OutSize: integer);
procedure Sign(InStream, OutStream : TStream; Count : integer = 0);

[C++]
    void Sign(void * InBuffer, int32_t InSize, void * OutBuffer, int32_t &OutSize);
    void Sign(TStream &InStream, TStream &OutStream, int32_t Count);
    void Sign(TStream *InStream, TStream *OutStream, int32_t Count);

[Java]
void sign(InputStream InStream, OutputStream OutStream, int Count);
int sign(byte[] InBuffer, int InIndex, int InSize, byte[] OutBuffer, int OutIndex, int OutSize);

Parameters

InBuffer - data buffer to sign
InIndex - offset of actual data from the beginning of the array
InSize - size of input data in bytes
OutBuffer - buffer where to put signeded data
OutIndex - output buffer start offset
OutSize - the maximal expected size of output data in bytes
InStream - the stream with data to sign.
OutStream - the stream for signed data.
Count - the number of bytes to be read. If this parameter is zero, the whole stream is processed.
Default value is 0.

Description

Use this method to sign the chunk of data with a key, specified by the KeyMaterial property, and create an enveloping signature. Not all algorithms support enveloping signatures. For example, with RSA algorithm, the exception will be thrown if you try to use Sign() method.

You can sign the data or its hash with this method. Use InputIsHash property to specify whether you pass the hash, or the data itself. In the latter case, the hash of the data will be calculated according to the value of HashAlgorithm property.

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