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[SuessLabs#32][SuessLabs#61] added vsdbg to launch.json, added rsa-sh…
…a2-256 for ssh.net, added ssh.exe adapter,.. working version
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,151 @@ | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Text; | ||
| using System.Threading.Tasks; | ||
| using Renci; | ||
| using Renci.SshNet; | ||
| using Renci.SshNet.Sftp; | ||
| using Renci.SshNet.Security; | ||
| using Renci.SshNet.Common; | ||
| using Renci.SshNet.Security.Cryptography.Ciphers; | ||
| using Renci.SshNet.Security.Cryptography; | ||
|
|
||
| using System.Security.Cryptography; | ||
| using System.Reflection; | ||
| namespace VsLinuxDebugger.Core | ||
| { | ||
| /// <summary> | ||
| /// Based on https://github.com/sshnet/SSH.NET/blob/1d5d58e17c68a2f319c51e7f938ce6e964498bcc/src/Renci.SshNet/Security/Cryptography/RsaDigitalSignature.cs#L12 | ||
| /// | ||
| /// With following changes: | ||
| /// | ||
| /// - OID changed to sha2-256 | ||
| /// - hash changed from sha1 to sha2-256 | ||
| /// </summary> | ||
| public class RsaSha256DigitalSignature : CipherDigitalSignature, IDisposable | ||
| { | ||
| private HashAlgorithm _hash; | ||
|
|
||
| public RsaSha256DigitalSignature(RsaWithSha256SignatureKey rsaKey) | ||
| // custom OID | ||
| : base(new ObjectIdentifier(2, 16, 840, 1, 101, 3, 4, 2, 1), new RsaCipher(rsaKey)) | ||
| { | ||
| // custom | ||
| _hash = SHA256.Create(); | ||
| } | ||
|
|
||
| protected override byte[] Hash(byte[] input) | ||
| { | ||
| return _hash.ComputeHash(input); | ||
| } | ||
|
|
||
| private bool _isDisposed; | ||
|
|
||
| public void Dispose() | ||
| { | ||
| Dispose(true); | ||
| GC.SuppressFinalize(this); | ||
| } | ||
|
|
||
| protected virtual void Dispose(bool disposing) | ||
| { | ||
| if (_isDisposed) | ||
| return; | ||
|
|
||
| if (disposing) | ||
| { | ||
| var hash = _hash; | ||
| if (hash != null) | ||
| { | ||
| hash.Dispose(); | ||
| _hash = null; | ||
| } | ||
|
|
||
| _isDisposed = true; | ||
| } | ||
| } | ||
|
|
||
| ~RsaSha256DigitalSignature() | ||
| { | ||
| Dispose(false); | ||
| } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Utility class which allows ssh.net to connect to servers using ras-sha2-256 | ||
| /// </summary> | ||
| public static class RsaSha256Util | ||
| { | ||
| public static void SetupConnection(ConnectionInfo connection) | ||
| { | ||
| connection.HostKeyAlgorithms["rsa-sha2-256"] = data => new KeyHostAlgorithm("rsa-sha2-256", new RsaKey(), data); | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Converts key file to rsa key with sha2-256 signature | ||
| /// Due to lack of constructor: https://github.com/sshnet/SSH.NET/blob/bc99ada7da3f05f50d9379f2644941d91d5bf05a/src/Renci.SshNet/PrivateKeyFile.cs#L86 | ||
| /// We do that in place | ||
| /// </summary> | ||
| /// <param name="keyFile"></param> | ||
| /// <exception cref="ArgumentNullException"></exception> | ||
| public static void ConvertToKeyWithSha256Signature(PrivateKeyFile keyFile) | ||
| { | ||
| var oldKeyHostAlgorithm = keyFile.HostKey as KeyHostAlgorithm; | ||
| if (oldKeyHostAlgorithm == null) | ||
| { | ||
| throw new ArgumentNullException(nameof(oldKeyHostAlgorithm)); | ||
| } | ||
|
|
||
| var oldRsaKey = oldKeyHostAlgorithm.Key as RsaKey; | ||
| if (oldRsaKey == null) | ||
| { | ||
| throw new ArgumentNullException(nameof(oldRsaKey)); | ||
| } | ||
|
|
||
| var newRsaKey = new RsaWithSha256SignatureKey(oldRsaKey.Modulus, oldRsaKey.Exponent, oldRsaKey.D, oldRsaKey.P, oldRsaKey.Q, | ||
| oldRsaKey.InverseQ); | ||
|
|
||
| UpdatePrivateKeyFile(keyFile, newRsaKey); | ||
| } | ||
|
|
||
| private static void UpdatePrivateKeyFile(PrivateKeyFile keyFile, RsaWithSha256SignatureKey key) | ||
| { | ||
| var keyHostAlgorithm = new KeyHostAlgorithm(key.ToString(), key); | ||
|
|
||
| var hostKeyProperty = typeof(PrivateKeyFile).GetProperty(nameof(PrivateKeyFile.HostKey)); | ||
| hostKeyProperty.SetValue(keyFile, keyHostAlgorithm); | ||
|
|
||
| var keyField = typeof(PrivateKeyFile).GetField("_key", BindingFlags.NonPublic | BindingFlags.Instance); | ||
| keyField.SetValue(keyFile, key); | ||
| } | ||
| } | ||
|
|
||
| public class RsaWithSha256SignatureKey : RsaKey | ||
| { | ||
| public RsaWithSha256SignatureKey(BigInteger modulus, BigInteger exponent, BigInteger d, BigInteger p, BigInteger q, | ||
| BigInteger inverseQ) : base(modulus, exponent, d, p, q, inverseQ) | ||
| { | ||
| } | ||
|
|
||
| private RsaSha256DigitalSignature _digitalSignature; | ||
|
|
||
| protected override DigitalSignature DigitalSignature | ||
| { | ||
| get | ||
| { | ||
| if (_digitalSignature == null) | ||
| { | ||
| _digitalSignature = new RsaSha256DigitalSignature(this); | ||
| } | ||
|
|
||
| return _digitalSignature; | ||
| } | ||
| } | ||
|
|
||
| public override string ToString() | ||
| { | ||
| return "rsa-sha2-256"; | ||
| } | ||
| } | ||
| } |
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