/// <summary>
/// 转换成RSA1散列字符串
/// </summary>
/// <param name="source">源数据流</param>
/// <param name="toLower">返回哈希值格式 true：英文小写，false：英文大写</param>
/// <returns>RSA1散列字符串</returns>
/// <example>
/// file.ToRsa1Hash();
/// </example>
public static string ToRsa1Hash(this Stream source, bool toLower = true)
{
var result = string.Empty;
using (var hash = new System.Security.Cryptography.SHA1CryptoServiceProvider())
{
hash.Initialize();
var bytes = hash.ComputeHash(source);
result = Convert.ToBase64String(bytes);
}
return(toLower ? result.ToLower() : result.ToUpper());
}
private void buttonMD5_Click(object sender, EventArgs e)
{
FileStream fs = new FileStream(textBoxFileName.Text, FileMode.Open);
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
System.Security.Cryptography.SHA1CryptoServiceProvider sha1 = new System.Security.Cryptography.SHA1CryptoServiceProvider();
md5.Initialize();
sha1.Initialize();
byte[] md5Hash = md5.ComputeHash(fs);
fs.Seek(0, SeekOrigin.Begin);
byte[] sha1Hash = sha1.ComputeHash(fs);
fs.Close();
string sMD5 = "";
string sSHA1 = "";
for (int i = 0; i < md5Hash.Length; i++)
{
sMD5 += string.Format("{0:X2}", md5Hash[i]);
}
for (int i = 0; i < sha1Hash.Length; i++)
{
sSHA1 += string.Format("{0:X2}", sha1Hash[i]);
}
if (sSHA1.ToUpper() == textBoxSHA1Compare.Text.ToUpper())
{
textBoxSHA1Compare.ForeColor = Color.Green;
}
else
{
textBoxSHA1Compare.ForeColor = Color.Red;
}
if (sMD5.ToUpper() == textBoxMD5Compare.Text.ToUpper())
{
textBoxMD5Compare.ForeColor = Color.Green;
}
else
{
textBoxMD5Compare.ForeColor = Color.Red;
}
textBoxMD5Compare.Text = textBoxMD5Compare.Text.ToUpper();
textBoxSHA1Compare.Text = textBoxSHA1Compare.Text.ToUpper();
textBoxCalMd5.Text = sMD5.ToUpper();
textBoxSHACalc.Text = sSHA1.ToUpper();
}
