public async Task ShouldRoundTripASignature()
{
using (var materialized = await KeyVaultConfigurationDiscoverer.Materialize(_configuration))
{
using (var context = new KeyVaultSigningContext(materialized))
{
using (var sha256 = SHA256.Create())
{
byte[] data = new byte[] { 1, 2, 3 };
byte[] digest = sha256.ComputeHash(data);
var signature = await context.SignDigestAsync(digest);
var result = await context.VerifyDigestAsync(digest, signature);
Assert.True(result);
}
}
}
}
public async Task ShouldFailToVerifyBadSignature()
{
using (var materialized = await KeyVaultConfigurationDiscoverer.Materialize(_configuration))
{
using (var context = new KeyVaultSigningContext(materialized))
{
using (var sha256 = SHA256.Create())
{
byte[] data = new byte[] { 1, 2, 3 };
byte[] digest = sha256.ComputeHash(data);
var signature = await context.SignDigestAsync(digest);
signature[0] = (byte)~signature[0]; //Flip some bits.
var result = await context.VerifyDigestAsync(digest, signature);
Assert.False(result);
}
}
}
}
