//---------------------------------------------------------------------
// Host key.
//---------------------------------------------------------------------
public byte[] GetRemoteHostKeyHash(LIBSSH2_HOSTKEY_HASH hashType)
{
this.session.Handle.CheckCurrentThreadOwnsHandle();
if (!Enum.IsDefined(typeof(LIBSSH2_HOSTKEY_HASH), hashType))
{
throw new ArgumentException(nameof(hashType));
}
using (SshTraceSources.Default.TraceMethod().WithParameters(hashType))
{
var hashPtr = UnsafeNativeMethods.libssh2_hostkey_hash(
this.session.Handle,
hashType);
if (hashPtr == IntPtr.Zero)
{
return(null);
}
else
{
var hash = new byte[HostKeyHashLength(hashType)];
Marshal.Copy(hashPtr, hash, 0, hash.Length);
return(hash);
}
}
}
private static int HostKeyHashLength(LIBSSH2_HOSTKEY_HASH hashType)
{
switch (hashType)
{
case LIBSSH2_HOSTKEY_HASH.MD5:
return(16);
case LIBSSH2_HOSTKEY_HASH.SHA1:
return(16);
case LIBSSH2_HOSTKEY_HASH.SHA256:
return(32);
default:
throw new ArgumentException(nameof(hashType));
}
}
public static extern IntPtr libssh2_hostkey_hash(
SshSessionHandle session,
LIBSSH2_HOSTKEY_HASH hashType);
