QuickHash Library

Type Library

SHA1_CalculateHex

void SHA1_CalculateHex( [ out ]SHA1_HexDigest* pDest, [ in, size_is( nSrcLength ) ] const void* pSrc, [ in ]int nSrcLength, [ in ] boolean bUpper );

Parameters

 pDest

    [out] A memory buffer that will receive the message digest as an ASCII null-terminated string.

     Note. All predefined types are specified in the Predefined Types List.

 pSrc

    [in] A continuous memory block for which to calculate the message digest.

 nSrcLength

    [in] Length in bytes of the memory block.

 bUpper

    [in] Uppercase flag. If bUpper is False, the received message digest represents a lowercase string, otherwise it represents an uppercase string.

Remarks

Calculates the SHA-1 message digest for the pSrc memory block. The digest is retrieved as an ASCII null-terminated hexadecimal string in the pDest memory buffer. 

VB Example

Private Sub MyButton_Click()   

    Dim Digest As SHA1_HexDigest

    Dim MyStrData As String

    MyStrData = "Hello World!"

    Dim nLen As Long

    nLen = Len(MyStrData)

    'Convert the string to byte array

    Dim MyBinData() As Byte

    ReDim MyBinData(1 To nLen)    

    For i = 1 To nLen

        MyBinData(i) = Asc(Mid(MyStrData, i, 1))

    Next i    

    'Get the digest

    SHA1_CalculateHex Digest, MyBinData(1), nLen,  True

    'Show the hexadecimal representation of the digest

    MsgBox QHASH_ASCIItoBSTR(Digest.Value(0))

End Sub

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See Also    SHA1_Calculate, SHA1_CalculateStr, SHA1_CalculateStrHex, QHASH_ASCIItoBSTR