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Fixed tests cases & added RFC8032 case

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This commit is contained in:
Thorsten Sommer 2020-01-03 20:39:07 +01:00
parent 4ec458e0d3
commit 64f3a8fd93
1 changed files with 67 additions and 8 deletions
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75
Ed25519 Tests/SignerTests.cs
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@ -1,9 +1,9 @@
using System;
using System.Collections.Generic;
using System.Security.Cryptography;
using System.Text;
using Ed25519;
using NUnit.Framework;
using NUnit.Framework.Constraints;
namespace Ed25519_Tests
{
@ -13,9 +13,10 @@ namespace Ed25519_Tests
public void TestSigner01()
{
var message = Encoding.UTF8.GetBytes("This is a test message.");
var publicKey = Encoding.ASCII.GetBytes("01365464163464646464164641634160"); // 32 bytes
var privateKey = Encoding.ASCII.GetBytes("Secret key");
var privateKey = new Span<byte>(new byte[32]);
RandomNumberGenerator.Create().GetBytes(privateKey);
var publicKey = privateKey.ExtractPublicKey();
var signature = Signer.Sign(message, privateKey, publicKey);
Assert.That(signature.Length, Is.EqualTo(64));
@ -25,23 +26,81 @@ namespace Ed25519_Tests
public void TestSigner02()
{
var message = Encoding.UTF8.GetBytes("This is a test message.");
var publicKey = Encoding.ASCII.GetBytes("0136546416346464646416464163416"); // 31 bytes
var privateKey = Encoding.ASCII.GetBytes("Secret key");
var privateKey = new Span<byte>(new byte[32]);
RandomNumberGenerator.Create().GetBytes(privateKey);
Assert.That(() => Signer.Sign(message, privateKey, publicKey), Throws.ArgumentException); // Public key is too short
var publicKey = privateKey.ExtractPublicKey()[2..];
try
{
Signer.Sign(message, privateKey, publicKey);
}
catch (ArgumentException e)
{
Assert.That(true); // Public key is too short!
}
}
[Test]
public void TestSigner03()
{
var message = Encoding.UTF8.GetBytes("This is a test message.");
var publicKey = Encoding.ASCII.GetBytes("01365464163464646464164641634160"); // 32 bytes
var privateKey = Encoding.ASCII.GetBytes("Secret key");
var privateKey = new Span<byte>(new byte[32]);
RandomNumberGenerator.Create().GetBytes(privateKey);
var publicKey = privateKey.ExtractPublicKey();
var signature = Signer.Sign(message, privateKey, publicKey);
var validationResult = Signer.Validate(signature, message, publicKey);
Assert.That(validationResult, Is.True);
}
[Test]
public void TestSigner04()
{
var messageOriginal = Encoding.UTF8.GetBytes("This is a test message.");
var privateKey = new Span<byte>(new byte[32]);
RandomNumberGenerator.Create().GetBytes(privateKey);
var publicKey = privateKey.ExtractPublicKey();
var signature = Signer.Sign(messageOriginal, privateKey, publicKey);
var messageAltered = Encoding.UTF8.GetBytes("This is a test message!");
var validationResult = Signer.Validate(signature, messageAltered, publicKey);
Assert.That(validationResult, Is.False); // Message was altered!
}
// See https://tools.ietf.org/html/rfc8032#section-7.1
[Test]
public void TestRFC8032Test01()
{
var message = new ReadOnlySpan<byte>(); // Empty message!
var publicKey = new byte[]
{
0xd7, 0x5a, 0x98, 0x01, 0x82, 0xb1, 0x0a, 0xb7, 0xd5, 0x4b, 0xfe, 0xd3, 0xc9, 0x64, 0x07, 0x3a,
0x0e, 0xe1, 0x72, 0xf3, 0xda, 0xa6, 0x23, 0x25, 0xaf, 0x02, 0x1a, 0x68, 0xf7, 0x07, 0x51, 0x1a,
};
var privateKey = new byte[]
{
0x9d, 0x61, 0xb1, 0x9d, 0xef, 0xfd, 0x5a, 0x60, 0xba, 0x84, 0x4a, 0xf4, 0x92, 0xec, 0x2c, 0xc4,
0x44, 0x49, 0xc5, 0x69, 0x7b, 0x32, 0x69, 0x19, 0x70, 0x3b, 0xac, 0x03, 0x1c, 0xae, 0x7f, 0x60,
};
var expectedSignature = new byte[]
{
0xe5, 0x56, 0x43, 0x00, 0xc3, 0x60, 0xac, 0x72, 0x90, 0x86, 0xe2, 0xcc, 0x80, 0x6e, 0x82, 0x8a,
0x84, 0x87, 0x7f, 0x1e, 0xb8, 0xe5, 0xd9, 0x74, 0xd8, 0x73, 0xe0, 0x65, 0x22, 0x49, 0x01, 0x55,
0x5f, 0xb8, 0x82, 0x15, 0x90, 0xa3, 0x3b, 0xac, 0xc6, 0x1e, 0x39, 0x70, 0x1c, 0xf9, 0xb4, 0x6b,
0xd2, 0x5b, 0xf5, 0xf0, 0x59, 0x5b, 0xbe, 0x24, 0x65, 0x51, 0x41, 0x43, 0x8e, 0x7a, 0x10, 0x0b,
};
var signature = Signer.Sign(message, privateKey, publicKey);
Assert.That(signature.ToArray(), Is.EqualTo(expectedSignature));
var validationResult = Signer.Validate(signature, message, publicKey);
Assert.That(validationResult, Is.True);
}
}
}