public static string ETag(this FileInfo fileInfo)
{
string eTag;
using (var ms = new MemoryStream(fileInfo.LastAccessTime.SerializeToBytes()))
{
eTag = HashData.ComputeHashMd5(ms);
}
return(eTag);
}
private static void TestHashingAPI()
{
const string originalMessage = "Original message to hash";
const string originalMessage2 = "Or1ginal message to hash";
Console.WriteLine($"Original Message 1: {originalMessage}");
Console.WriteLine($"Original Message 2: {originalMessage2}");
Console.WriteLine();
var mdHashedMessage = HashData.ComputeHashMd5(Encoding.UTF8.GetBytes(originalMessage));
var mdHashedMessage2 = HashData.ComputeHashMd5(Encoding.UTF8.GetBytes(originalMessage2));
var sha1HashedMessage = HashData.ComputeHashSha1(Encoding.UTF8.GetBytes(originalMessage));
var sha1HashedMessage2 = HashData.ComputeHashSha1(Encoding.UTF8.GetBytes(originalMessage2));
var sha256HashedMessage = HashData.ComputeHashSha256(Encoding.UTF8.GetBytes(originalMessage));
var sha256HashedMessage2 = HashData.ComputeHashSha256(Encoding.UTF8.GetBytes(originalMessage2));
var sha512HashedMessage = HashData.ComputeHashSha512(Encoding.UTF8.GetBytes(originalMessage));
var sha512HashedMessage2 = HashData.ComputeHashSha512(Encoding.UTF8.GetBytes(originalMessage2));
Console.WriteLine();
Console.WriteLine($"MD5 Message 1: {Convert.ToBase64String(mdHashedMessage)}");
Console.WriteLine($"MD5 Message 2: {Convert.ToBase64String(mdHashedMessage2)}");
Console.WriteLine();
Console.WriteLine();
Console.WriteLine($"SHA1 Message 1: {Convert.ToBase64String(sha1HashedMessage)}");
Console.WriteLine($"SHA1 Message 2: {Convert.ToBase64String(sha1HashedMessage2)}");
Console.WriteLine();
Console.WriteLine();
Console.WriteLine($"SHA256 Message 1: {Convert.ToBase64String(sha256HashedMessage)}");
Console.WriteLine($"SHA256 Message 2: {Convert.ToBase64String(sha256HashedMessage2)}");
Console.WriteLine();
Console.WriteLine();
Console.WriteLine($"SHA512 Message 1: {Convert.ToBase64String(sha512HashedMessage)}");
Console.WriteLine($"SHA512 Message 2: {Convert.ToBase64String(sha512HashedMessage2)}");
Console.WriteLine();
}
