CryptographicException in BaseClient.Connect()

Using SSH.NET 2020.0.1, occasionally CryptographicException is thrown in call to BaseClient.Connect():

System.Security.Cryptography.CryptographicException: Hash not valid for use in specified state.
   at System.Security.Cryptography.CryptographicException.ThrowCryptographicException(Int32 hr)
   at System.Security.Cryptography.Utils.HashData(SafeHashHandle hHash, Byte[] data, Int32 cbData, Int32 ibStart, Int32 cbSize)
   at System.Security.Cryptography.SHA1CryptoServiceProvider.HashCore(Byte[] rgb, Int32 ibStart, Int32 cbSize)
   at System.Security.Cryptography.HashAlgorithm.ComputeHash(Byte[] buffer)
   at Renci.SshNet.Security.Cryptography.CipherDigitalSignature.Sign(Byte[] input)
   at Renci.SshNet.Security.KeyHostAlgorithm.Sign(Byte[] data)
   at Renci.SshNet.PrivateKeyAuthenticationMethod.Authenticate(Session session)
   at Renci.SshNet.ClientAuthentication.TryAuthenticate(ISession session, AuthenticationState authenticationState, String[] allowedAuthenticationMethods, SshAuthenticationException& authenticationException)
   at Renci.SshNet.ClientAuthentication.Authenticate(IConnectionInfoInternal connectionInfo, ISession session)
   at Renci.SshNet.ConnectionInfo.Authenticate(ISession session, IServiceFactory serviceFactory)
   at Renci.SshNet.Session.Connect()
   at Renci.SshNet.BaseClient.CreateAndConnectSession()
   at Renci.SshNet.BaseClient.Connect()

Will try to gather more info and report back.

Parti da BaseClient.Connect() e segui lo stack segnalato attraverso PrivateKeyAuthenticationMethod.Authenticate, KeyHostAlgorithm.Sign e CipherDigitalSignature.Sign. Riproduci la CryptographicException intermittente con SSH.NET 2020.0.1 ed esamina il flusso circostante di autenticazione e firma; il lavoro è completato quando la causa è stata identificata e la connessione non produce più questa eccezione.