how to crack the altera megacore.
altera 提供了很多的IP核，在开发FPGA项目时候可以大大提高效率，但是网上的证书只有NIOS II 的授权。如何获取全部授权呢？
其实很简单，打开license.DAT
应该是这样：
FEATURE quartus alterad 2037.12 permanent uncounted 385FB2185EE1 \
HOSTID=002219074965 TS_OK SIGN="1113 5A52 EA34 2C59 C5B7 B031 \
CE45 D947 B4AB 5969 C1E6 913F DE27 F3FE 08B7 07E0 9AF1 4546 \
392F BDEF 2D19 E184 8A44 4C38 FD10 88F9 0F2F 1E21 5754 B8E8"
FEATURE 6AF7_00A2 alterad 2037.12 31-dec-2037 uncounted 25E460565093 \
VENDOR_STRING="iiiiiiiihdLkhIIIIIIIImPDuiaaaaaaaaP1X38DDDDDDDDmjz5cdddddddd4mGzGJJJJJJJJiqIh0uuuuuuuucYYWiVVVVVVVVcp0FVHHHHHHHHPUEakffffffffR2FFRkkkkkkkkqL$84"\
HOSTID=002219074965 TS_OK SIGN="1522 268B BDB1 6671 2B23 C443 \
3798 D110 5ACD 5571 F8CD 45C6 11E7 EB10 992E 1B47 84FE A8CB \
111D 4C18 EAC6 A7AA 2F4B 1CFA 5DC7 93E3 57D7 93C6 C45A A622"
#license文件存放的路径名称不能包含汉字和空格，空格可以用下划线代替。
#把license.dat里的XXXXXXXXXXXX用您老的网卡号替换(在Quartus II的Tools菜单下选择License Setup，下面就有NIC ID)。
假设 我需要三速以太网 triple speed ethernet
在编译的时候，quartus 会告诉你 这个IP核的特征字，如下：
Warning: OpenCore Plus Hardware Evaluation feature is turned on for the following cores
Warning: ""Triple Speed Ethernet" (6AF7_00BD)" will use the OpenCore Plus Hardware Evaluation feature
Warning: Messages from megafunction that supports OpenCore Plus feature
Warning: Messages from megafunction that supports OpenCore Plus feature TSE_MAC
Warning: The Triple Speed Ethernet MegaCore MAC function will be disabled after time-out is reached
Warning: Megafunction that supports OpenCore Plus feature will stop functioning in 1 hour after device is programmed那么 修改上面的证书 ，如下：
FEATURE 6AF7_00BD alterad 2037.12 31-dec-2037 uncounted 25E460565093 \
VENDOR_STRING="iiiiiiiihdLkhIIIIIIIImPDuiaaaaaaaaP1X38DDDDDDDDmjz5cdddddddd4mGzGJJJJJJJJiqIh0uuuuuuuucYYWiVVVVVVVVcp0FVHHHHHHHHPUEakffffffffR2FFRkkkkkkkkqL$84"\
HOSTID=002219074965 TS_OK SIGN="1522 268B BDB1 6671 2B23 C443 \
3798 D110 5ACD 5571 F8CD 45C6 11E7 EB10 992E 1B47 84FE A8CB \
111D 4C18 EAC6 A7AA 2F4B 1CFA 5DC7 93E3 57D7 93C6 C45A A622"
这个就是三速以太网的证书，试试吧！