btcpayserver/BTCPayServer.BoltCardTools
btcpayserver/BTCPayServer.BoltCardTools
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Add GetId

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This commit is contained in:
nicolas.dorier 2023-10-20 11:07:28 +09:00
parent 67bb1c7220
commit 674ea8ffd8
No known key found for this signature in database
GPG Key ID: 6618763EF09186FE
4 changed files with 18 additions and 5 deletions
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12
src/BTCPayServer.NTag424/AESKey.cs
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@ -280,4 +280,16 @@ public class AESKey
new byte[] { 0x2d, 0x00, 0x3f, 0x78 },
uid));
}
/// <summary>
/// Get the ID from the UID and the encryption key (K1)
/// </summary>
/// <param name="uid">The UID</param>
/// <returns>The ID</returns>
public byte[] GetId(byte[] uid)
{
return Derive(Helpers.Concat(
new byte[] { 0x2d, 0x00, 0x3f, 0x7b },
uid)).ToBytes().Take(7).ToArray();
}
}

2
src/BTCPayServer.NTag424/BTCPayServer.NTag424.csproj
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@ -5,7 +5,7 @@
<TargetFramework>net6.0</TargetFramework>
<LangVersion>10.0</LangVersion>
<Nullable>enable</Nullable>
<Version>1.0.2</Version>
<Version>1.0.3</Version>
</PropertyGroup>
<PropertyGroup>

6
src/BTCPayServer.NTag424/BoltcardKeys.cs
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@ -6,9 +6,9 @@ namespace BTCPayServer.NTag424;
/// <summary>
/// The keys saved into the BoltCard
/// </summary>
/// <param name="AppMasterKey">The key used to call ChangeKey</param>
/// <param name="EncryptionKey">The key used to encrypt PICCData (p=)</param>
/// <param name="AuthenticationKey">The key used to authenticated PICCData (c=)</param>
/// <param name="AppMasterKey">K0: The key used to call ChangeKey</param>
/// <param name="EncryptionKey">K1: The key used to encrypt PICCData (p=)</param>
/// <param name="AuthenticationKey">K2: The key used to authenticated PICCData (c=)</param>
/// <param name="K3">Unused, shouldn't be predictable</param>
/// <param name="K4">Unused, shouldn't be predictable</param>
public record BoltcardKeys(

3
tests/UnitTest1.cs
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@ -85,6 +85,7 @@ public class UnitTest1
Logs.WriteLine("K2: " + keys.AuthenticationKey.ToBytes().ToHex());
Logs.WriteLine("K3: " + keys.K3.ToBytes().ToHex());
Logs.WriteLine("K4: " + keys.K4.ToBytes().ToHex());
Logs.WriteLine("ID: " + keys.EncryptionKey.GetId(uid).ToHex());
}
[Fact]
@ -220,7 +221,7 @@ public class UnitTest1
await ntag.AuthenticateEV2First(0, AESKey.Default);
var uid = await ntag.GetCardUID();
var keys = BoltcardKeys.CreateDeterministicKeys(issuerKey, uid, batchId: 0);
// await ntag.ResetCard(keys);
await ntag.SetupBoltcard("http://test.com", BoltcardKeys.Default, keys);
var message = await ntag.ReadNDef();