/// <summary>
/// 计算SHA-512码
/// </summary>
/// <param name="word">字符串</param>
/// <param name="toUpper">返回哈希值格式 true：英文大写，false：英文小写</param>
/// <returns></returns>
public static string Hash_SHA_512(string word, bool toUpper = true)
{
try
{
System.Security.Cryptography.SHA512CryptoServiceProvider SHA512CSP
= new System.Security.Cryptography.SHA512CryptoServiceProvider();
byte[] bytValue = System.Text.Encoding.UTF8.GetBytes(word);
byte[] bytHash = SHA512CSP.ComputeHash(bytValue);
SHA512CSP.Clear();
//根据计算得到的Hash码翻译为SHA-1码
string sHash = "", sTemp = "";
for (int counter = 0; counter < bytHash.Count(); counter++)
{
long i = bytHash[counter] / 16;
if (i > 9)
{
sTemp = ((char)(i - 10 + 0x41)).ToString();
}
else
{
sTemp = ((char)(i + 0x30)).ToString();
}
i = bytHash[counter] % 16;
if (i > 9)
{
sTemp += ((char)(i - 10 + 0x41)).ToString();
}
else
{
sTemp += ((char)(i + 0x30)).ToString();
}
sHash += sTemp;
}
//根据大小写规则决定返回的字符串
return(toUpper ? sHash : sHash.ToLower());
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
/// <summary>
/// 获取文本SHA512
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
public static string GetTextSHA_512(string text)
{
if (string.IsNullOrEmpty(text))
{
return(string.Empty);
}
System.Security.Cryptography.SHA512CryptoServiceProvider SHA512CSP
= new System.Security.Cryptography.SHA512CryptoServiceProvider();
byte[] bytValue = System.Text.Encoding.UTF8.GetBytes(text);
byte[] bytHash = SHA512CSP.ComputeHash(bytValue);
SHA512CSP.Clear();
//根据计算得到的Hash码翻译为SHA-1码
string sHash = ConvertHashBytes(bytHash);
//根据大小写规则决定返回的字符串
return(sHash.ToLower());
}