QuickHash Library

Type Library

SHA256_Calculate

void SHA256_Calculate( [out]SHA256_Digest* pDigest, [ in , size_is( nSrcLength ) ] const void* pSrc, [ in ] int nSrcLength );

Parameters

 pDigest

    [out] A memory buffer that will receive the message digest.

     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. 

Remarks

Calculates the SHA-2(256) message digest for the  pSrc memory block. The digest is retrieved in the pDigest memory buffer.

VB Example

Private Sub MyButton_Click()   

    Dim Digest As SHA256_Digest

    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

    SHA256_Calculate Digest, MyBinData(1), nLen

    'Show the hexadecimal representation of the digest

    MsgBox QHASH_ConvertToHex(Digest.Value(0), SHA256_DIGESTSIZE, True)

End Sub

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See Also    SHA256_CalculateHex, SHA256_CalculateStr, SHA256_CalculateStrHex, QHASH_ConvertToHex