[我的ASP.net学习历程]调用类库函库的简单加密方法

ASP.net自带了一个MD5和SHA1加密类库！
下面是调用此类库的两种加密方法：

=====================

public string GetMD5(string strData)
{
//使用MD5加密方法：
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] md5Bytes = System.Text.Encoding.Default.GetBytes(strData);
byte[] cryString = md5.ComputeHash(md5Bytes);
string md5Str = string.Empty;
for (int i=0;i<cryString.Length;i++)
{
md5Str += cryString[i].ToString("X");
}
return md5Str;
}

public string GetEncrypt(string strData,string strType)
{
//使用鍵值哈希算法中的MD5或SHA1的加密方法：
string strCryData = string.Empty;
if (strType.ToUpper() == "SHA1")
{
strCryData = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(strData,"SHA1");
}
else if (strType.ToUpper() == "MD5")
{
strCryData = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(strData,"MD5");
}
return strCryData;
}

public string GetSHA256(string strData)
{
//使用SHA256加密算法：
System.Security.Cryptography.SHA256 sha256 = new System.Security.Cryptography.SHA256Managed();
byte[] sha256Bytes = System.Text.Encoding.Default.GetBytes(strData);
byte[] cryString = sha256.ComputeHash(sha256Bytes);
string sha256Str = string.Empty;
for (int i=0;i<cryString.Length;i++)
{
sha256Str += cryString[i].ToString("X");
}
return sha256Str;
}

public string GetSHA384(string strData)
{
//使用SHA384加密算法：
System.Security.Cryptography.SHA384 sha384 = new System.Security.Cryptography.SHA384Managed();
byte[] sha384Bytes = System.Text.Encoding.Default.GetBytes(strData);
byte[] cryString = sha384.ComputeHash(sha384Bytes);
string sha384Str = string.Empty;
for (int i=0;i<cryString.Length;i++)
{
sha384Str += cryString[i].ToString("X");
}
return sha384Str;
}

public string GetSHA512(string strData)
{
//使用SHA512加密算法：
System.Security.Cryptography.SHA512 sha512 = new System.Security.Cryptography.SHA512Managed();
byte[] sha512Bytes = System.Text.Encoding.Default.GetBytes(strData);
byte[] cryString = sha512.ComputeHash(sha512Bytes);
string sha512Str = string.Empty;
for (int i=0;i<cryString.Length;i++)
{
sha512Str += cryString[i].ToString("X");
}
return sha512Str;
}