anchor.diff:  group_config(chacha20_poly1305, Config) ->
       AEAD = chacha20_poly1305(),
       [{aead, AEAD} | Config];
  +group_config(poly1305, Config) ->
  +    V = [%% {Key, Txt, Expect}
  +         {%% RFC7539 2.5.2
  +           crypto_SUITE:hexstr2bin("85d6be7857556d337f4452fe42d506a80103808afb0db2fd4abff6af4149f51b"),
  +           <<"Cryptographic Forum Research Group">>,
  +           crypto_SUITE:hexstr2bin("a8061dc1305136c6c22b8baf0c0127a9")
  +         }
  +        ],
  +    [{poly1305,V} | Config];
   group_config(aes_cbc, Config) ->
       Block = aes_cbc(Config),
       [{block, Block} | Config];
  
positive.code:                      {group, aes_ctr},
  		     {group, aes_gcm},
  		     {group, chacha20_poly1305},
  		     {group, aes_cbc}]},
       {fips, [], [{group, no_md4},
                   {group, no_md5},
  
negative.code:      {aes_ctr, [], [stream]},
       {aes_gcm, [], [aead]},
       {chacha20_poly1305, [], [aead]},
       {poly1305, [], [poly1305]},
       {aes_cbc, [], [block]},
       {no_md4, [], [no_support, no_hash]},
       {no_md5, [], [no_support, no_hash, no_hmac]},
  