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using Hazel.Crypto;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Text;
namespace Hazel.UnitTests.Crypto
{
[TestClass]
public class Sha256Tests
{
[TestMethod]
public void TestOneBlockMessage()
{
ByteSpan message = Encoding.ASCII.GetBytes(
"abc"
);
byte[] expectedDigest = Utils.HexToBytes(
"ba7816bf 8f01cfea 414140de 5dae2223 b00361a3 96177a9c b410ff61 f20015ad"
);
byte[] actualDigest = new byte[Sha256Stream.DigestSize];
using (Sha256Stream sha256 = new Sha256Stream())
{
sha256.AddData(message);
sha256.CopyOrCalculateFinalHash(actualDigest);
}
CollectionAssert.AreEqual(expectedDigest, actualDigest);
}
[TestMethod]
public void TestMultiBlockMessage()
{
ByteSpan message = Encoding.ASCII.GetBytes(
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
);
byte[] expectedDigest = Utils.HexToBytes(
"248d6a61 d20638b8 e5c02693 0c3e6039 a33ce459 64ff2167 f6ecedd4 19db06c1"
);
byte[] actualDigest = new byte[Sha256Stream.DigestSize];
using (Sha256Stream sha256 = new Sha256Stream())
{
sha256.AddData(message);
sha256.CopyOrCalculateFinalHash(actualDigest);
}
CollectionAssert.AreEqual(expectedDigest, actualDigest);
}
[TestMethod]
public void TestLongMessage()
{
ByteSpan message = Encoding.ASCII.GetBytes(
new string('a', 1000000)
);
byte[] expectedDigest = Utils.HexToBytes(
"cdc76e5c 9914fb92 81a1c7e2 84d73e67 f1809a48 a497200e 046d39cc c7112cd0"
);
byte[] actualDigest = new byte[Sha256Stream.DigestSize];
using (Sha256Stream sha256 = new Sha256Stream())
{
sha256.AddData(message);
sha256.CopyOrCalculateFinalHash(actualDigest);
}
CollectionAssert.AreEqual(expectedDigest, actualDigest);
}
}
}
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