public bool IsUserOrNot(string userId, string strPwd, out string strErrorMessage)
{
strErrorMessage = "";
string sql = "SELECT ID,Name,Passwd,RegDate FROM Users WHERE ID='" + userId + "' AND Valid = '1'";
DataTable dataTableUser = m_SqlHelper.ExecuteDataTable(sql);
if (dataTableUser.Rows.Count == 0)
{
strErrorMessage = "用户不存在！";
return(false);
}
else
{
string encryptPasswordBase64 = HisEncryption.EncodeString(dataTableUser.Rows[0]["RegDate"].ToString(), HisEncryption.PasswordLength, strPwd);
if (encryptPasswordBase64 == dataTableUser.Rows[0]["Passwd"].ToString())
{
UserName = dataTableUser.Rows[0]["Name"].ToString();
return(true);
}
else
{
strErrorMessage = "密码错误！";
return(false);
}
}
}
/// <summary>
/// 加密字符串sql用,形式为Char(xx)+Char(xx)...
/// </summary>
/// <param name="buffer">密钥</param>
/// <param name="len">长度=8</param>
/// <param name="key">传入的明码密码</param>
/// <returns></returns>
public static string EncodeStringSql(string buffer, int len, string key)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer", "传入密钥为空");
}
if (string.IsNullOrEmpty(key))
{
key = string.Empty;
}
char[] pbuffer = new char[1024];
char[] pkey = new char[80];
string s = "";
char[] ckey;
HisEncryption encryption = new HisEncryption();
buffer.ToCharArray().CopyTo(pbuffer, 0);
key.ToCharArray().CopyTo(pkey, 0);
encryption.Secret(pbuffer, len, pkey);
ckey = encryption.EncryptPassword.ToCharArray();
s = "char(" + Convert.ToByte(ckey[0]).ToString() + ")";
for (int i = 1; i < len; i++)
{
s = s + "+char(" + Convert.ToByte(ckey[i]).ToString() + ")";
}
s = s + "+char(0)";
return(s);
}
private static byte[] CharArray2ByteArray(int len, HisEncryption encryption)
{
byte[] ret = new byte[len];
for (int i = 0; i < len; i++)
{
ret[i] = Convert.ToByte(encryption.pass[i]);
}
return(ret);
}
/// <summary>
/// 加密串
/// </summary>
/// <param name="buffer">密钥</param>
/// <param name="len">长度=8</param>
/// <param name="key">传入的明码密码</param>
/// <returns>返回字符数组</returns>
public static byte[] EncodeString2ByteArray(string buffer, int len, string key)
{
if (buffer == null)
{
throw new ArgumentNullException("buffer", "传入密钥为空");
}
if (string.IsNullOrEmpty(key))
{
key = string.Empty;
}
char[] pbuffer = new char[1024];
char[] pkey = new char[80];
HisEncryption encryption = new HisEncryption();
buffer.ToCharArray().CopyTo(pbuffer, 0);
key.ToCharArray().CopyTo(pkey, 0);
encryption.Secret(pbuffer, len, pkey);
return(CharArray2ByteArray(len, encryption));
}