Request verification for accounting request is fixed.

[pvragov]

From https://tools.ietf.org/html/rfc2866

 3.  Packet Format
  .... 
 Request Authenticator
  In Accounting-Request Packets, the Authenticator value is a 16
  octet MD5 [5] checksum, called the Request Authenticator.

  The NAS and RADIUS accounting server share a secret.  The Request
  Authenticator field in Accounting-Request packets contains a one-
  way MD5 hash calculated over a stream of octets consisting of the
  Code + Identifier + Length + 16 zero octets + request attributes +
  shared secret (where + indicates concatenation).  The 16 octet MD5
  hash value is stored in the Authenticator field of the
  Accounting-Request packet.

  Note that the Request Authenticator of an Accounting-Request can
  not be done the same way as the Request Authenticator of a RADIUS
  Access-Request, because there is no User-Password attribute in an
  Accounting-Request.

[geaaru]

Hi, take a look to my open pr... i fix a lot of things: #86

[pvragov]

Hi! It seems that you've fixed this problem. Thanks for your answer.