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tiancao1001 于 2017-05-08 06:06 PM 发表评论：

Imports System.Security.Cryptography
Public Class Form1
    Dim pubkey As String = "<RSAKeyValue><Modulus>xe3teTUwLgmbiwFJwWEQnshhKxgcasglGsfNVFTk0hdqKc9i7wb+gG7HOdPZLh65QyBcFfzdlrawwVkiPEL5kNTX1q3JW5J49mTVZqWd3w49reaLd8StHRYJdyGAL4ZovBhSTThETi+zYvgQ5SvCGkM6/xXOz+lkMaEgeFcjQQs=</Modulus><Exponent>AQAB</Exponent></RSAKeyValue>"
    Dim prikey As String = "<RSAKeyValue><Modulus>xe3teTUwLgmbiwFJwWEQnshhKxgcasglGsfNVFTk0hdqKc9i7wb+gG7HOdPZLh65QyBcFfzdlrawwVkiPEL5kNTX1q3JW5J49mTVZqWd3w49reaLd8StHRYJdyGAL4ZovBhSTThETi+zYvgQ5SvCGkM6/xXOz+lkMaEgeFcjQQs=</Modulus><Exponent>AQAB</Exponent><P>5flMAd7IrUTx92yomBdJBPDzp1Kclpaw4uXB1Ht+YXqwLW/9icI6mcv7d2O0kuVLSWj8DPZJol9V8AtvHkC3oQ==</P><Q>3FRA9UWcFrVPvGR5bewcL7YqkCMZlybV/t6nCH+gyMfbEvgk+p04F+j8WiHDykWj+BahjScjwyF5SGADbrfJKw==</Q><DP>b4WOU1XbERNfF3JM67xW/5ttPNX185zN2Ko8bbMZXWImr1IgrD5RNqXRo1rphVbGRKoxmIOSv7flr8uLrisKIQ==</DP><DQ>otSZlSq2qomgvgg7PaOLSS+F0TQ/i1emO0/tffhkqT4ah7BgE97xP6puJWZivjAteAGxrxHH+kPY0EY1AzRMNQ==</DQ><InverseQ>Sxyz0fEf5m7GrzAngLDRP/i+QDikJFfM6qPyr3Ub6Y5RRsFbeOWY1tX3jmV31zv4cgJ6donH7W2dSBPi67sSsw==</InverseQ><D>nVqofsIgSZltxTcC8fA/DFz1kxMaFHKFvSK3RKIxQC1JQ3ASkUEYN/baAElB0f6u/oTNcNWVPOqE31IDe7ErQelVc4D26RgFd5V7dSsF3nVz00s4mq1qUBnCBLPIrdb0rcQZ8FUQTsd96qW8Foave4tm8vspbM65iVUBBVdSYYE=</D></RSAKeyValue>"
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Using rsa As New RSACryptoServiceProvider()
            rsa.FromXmlString(prikey)
            ' 加密对象
            Dim f As New RSAPKCS1SignatureFormatter(rsa)
            f.SetHashAlgorithm("SHA1")
            Dim source As Byte() = System.Text.ASCIIEncoding.ASCII.GetBytes(TextBox1.Text)
            Dim sha As New SHA1Managed()
            Dim result As Byte() = sha.ComputeHash(source)
            Dim s As String = Convert.ToBase64String(result)
            MsgBox(s)
            Dim b As Byte() = f.CreateSignature(result)
            TextBox2.Text = ""
            TextBox2.Text = Convert.ToBase64String(b)
        End Using
        TextBox3.Text = pubkey
        TextBox4.Text = prikey
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Using rsa As New RSACryptoServiceProvider()
            rsa.FromXmlString(pubkey)
            Dim f As New RSAPKCS1SignatureDeformatter(rsa)
            f.SetHashAlgorithm("SHA1")
            Dim key As Byte() = Convert.FromBase64String(TextBox2.Text)
            Dim sha As New SHA1Managed()
            Dim name As Byte() = sha.ComputeHash(System.Text.ASCIIEncoding.ASCII.GetBytes(TextBox1.Text))
            Dim s As String = Convert.ToBase64String(name)
            MsgBox(s)
            If f.VerifySignature(name, key) Then
                MessageBox.Show("Succese!")
            Else
                MessageBox.Show("Falied!")
            End If
        End Using
    End Sub
End Class

查看所评论的日志：vb.net中使用RSA编写注册码验证

bill 于 2017-05-05 09:49 AM 发表评论：

您好，我想下载装配式钢结构建筑技术标准和装配式木结构建筑技术标准但下载不了，您能发我一份吗？非常感谢我的邮箱是2095347511@qq.com

查看所评论的日志：装配式钢结构建筑技术标准.GB/T51232-2016.pdf

羽冉于 2017-05-04 10:02 AM 发表评论：

我想下载装配式钢结构建筑技术标准.GB/T51232-2016 邮箱654599637@qq.com可以发我一份吗

查看所评论的日志：装配式钢结构建筑技术标准.GB/T51232-2016.pdf

shapolang 于 2017-05-03 07:01 PM 发表评论：

248839467@qq.com谢谢了，楼主