/// <summary>
/// 获取字符串的 MD5 哈希值，默认编码为<see cref="Encoding.UTF8"/>
/// </summary>
/// <param name="value">待加密的值</param>
/// <param name="bitType">MD5加密类型，默认为<see cref="MD5BitType.L32"/></param>
/// <param name="encoding">编码类型，默认为<see cref="Encoding.UTF8"/></param>
/// <returns></returns>
public static string Signature(string value, MD5BitType bitType = MD5BitType.L32, Encoding encoding = null)
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (encoding == null)
{
encoding = Encoding.UTF8;
}
switch (bitType)
{
case MD5BitType.L16:
return(Encrypt16Func()(value)(encoding));
case MD5BitType.L32:
return(Encrypt32Func()(value)(encoding));
case MD5BitType.L64:
return(Encrypt64Func()(value)(encoding));
default:
throw new ArgumentOutOfRangeException(nameof(bitType), bitType, null);
}
}
/// <summary>
/// 验证签名
/// </summary>
/// <param name="comparison">对比的值</param>
/// <param name="value">待加密的值</param>
/// <param name="bitType">MD5加密类型，默认为<see cref="MD5BitType.L32"/></param>
/// <param name="encoding">编码类型，默认为<see cref="Encoding.UTF8"/></param>
/// <returns></returns>
public static bool Verify(string comparison, string value, MD5BitType bitType = MD5BitType.L32,
Encoding encoding = null) => comparison == Signature(value, bitType, encoding);
