Error identifying Active Authentication Hash Algorithm - Chinese ePassport

[rbrouwer]

The solution of #194 broke AA for recent Chinese passports.

Those will return 0 bytes when giving them an Expected Response Length of 65536. When undoing the changes to secure messaging and setting the Expected Response Length to 256. Those work just fine again.

I guess behaviour such as in JMRTD' AAAPDUSender is wanted; Guessing the correct length and even retrying with 65536 when 256 did not make sense.