TElPublicKeyCrypto.SignDetached method

TElPublicKeyCrypto.SignDetached

Creates a detached signature over input data.

Declaration

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

[VB.NET]
Sub SignDetached(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 SignDetached(ByVal InStream As System.IO.Stream, ByVal OutStream As System.IO.Stream, ByVal Count As Integer)

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

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

[Java]
void signDetached(InputStream InStream, OutputStream OutStream, int Count);
int signDetached(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 signed 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

This method creates a detached signature over input data. The original data are not included to the signature (output data). Remember that you should transfer a detached signature (output data) along with original data.

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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