30-09-14, 11:14 PM
السلام عليكم اريد شرح لهذه الاكواد ودمتم
Imports System
Imports System.Security.Cryptography
Imports System.Text
Class Program
Shared Sub Main(ByVal args() As String)
Dim Using md5Hash As MD5 = MD5.Create()
Dim hash As String = GetMd5Hash(md5Hash, source)
Console.WriteLine("The MD5 hash of " + source + " is: " + hash + ".")
Console.WriteLine("Verifying the hash...")
If VerifyMd5Hash(md5Hash, Console.WriteLine("The hashes are the same.")
Else
Console.WriteLine("The hashes are not same.")
End If
End Using
End Sub 'Main
Shared Function GetMd5Hash(ByVal md5Hash As MD5, ByVal input As String) As String
' Convert the input string to a byte array and compute the hash.
Dim data As Byte() = md5Hash.ComputeHash(Encoding.UTF8.GetBytes(input))
' Create a new Stringbuilder to collect the bytes
' and create a string.
Dim sBuilder As New StringBuilder()
' Loop through each byte of the hashed data
' and format each one as a hexadecimal string.
Dim i As Integer
For i = 0 To data.Length - 1
sBuilder.Append(data(i).ToString("x2"))
Next i
' Return the hexadecimal string.
Return sBuilder.ToString()
End Function 'GetMd5Hash
' Verify a hash against a string.
Shared Function VerifyMd5Hash(ByVal md5Hash As MD5, ByVal input As String, ByVal hash As String) As Boolean
' Hash the input.
Dim hashOfInput As String = GetMd5Hash(md5Hash, input)
' Create a StringComparer an compare the hashes.
Dim comparer As StringComparer = StringComparer.OrdinalIgnoreCase
If 0 = comparer.Compare(hashOfInput, hash) Then
Return True
Else
Return False
End If
End Function 'VerifyMd5Hash
End Class 'Program
' This code example produces the following output:
'
' The MD5 hash of Hello World! is: ed076287532e86365e841e92bfc50d8c.
' Verifying the hash...
' The hashes are the same.
Imports System
Imports System.Security.Cryptography
Imports System.Text
Class Program
Shared Sub Main(ByVal args() As String)
Dim Using md5Hash As MD5 = MD5.Create()
Dim hash As String = GetMd5Hash(md5Hash, source)
Console.WriteLine("The MD5 hash of " + source + " is: " + hash + ".")
Console.WriteLine("Verifying the hash...")
If VerifyMd5Hash(md5Hash, Console.WriteLine("The hashes are the same.")
Else
Console.WriteLine("The hashes are not same.")
End If
End Using
End Sub 'Main
Shared Function GetMd5Hash(ByVal md5Hash As MD5, ByVal input As String) As String
' Convert the input string to a byte array and compute the hash.
Dim data As Byte() = md5Hash.ComputeHash(Encoding.UTF8.GetBytes(input))
' Create a new Stringbuilder to collect the bytes
' and create a string.
Dim sBuilder As New StringBuilder()
' Loop through each byte of the hashed data
' and format each one as a hexadecimal string.
Dim i As Integer
For i = 0 To data.Length - 1
sBuilder.Append(data(i).ToString("x2"))
Next i
' Return the hexadecimal string.
Return sBuilder.ToString()
End Function 'GetMd5Hash
' Verify a hash against a string.
Shared Function VerifyMd5Hash(ByVal md5Hash As MD5, ByVal input As String, ByVal hash As String) As Boolean
' Hash the input.
Dim hashOfInput As String = GetMd5Hash(md5Hash, input)
' Create a StringComparer an compare the hashes.
Dim comparer As StringComparer = StringComparer.OrdinalIgnoreCase
If 0 = comparer.Compare(hashOfInput, hash) Then
Return True
Else
Return False
End If
End Function 'VerifyMd5Hash
End Class 'Program
' This code example produces the following output:
'
' The MD5 hash of Hello World! is: ed076287532e86365e841e92bfc50d8c.
' Verifying the hash...
' The hashes are the same.