Initial commit
add framework code
add load & save userinfo functions
correct the mistakes in save & load userinfo func
complete function:generate_poly
add a simple Makefile and a workflow doc
complete calc_poly func
complete generate_instruction_table func
bug fix:add rand seed,clear mpz_t after using..
make generate_ins_table shorter,merge encrypt and decrypt
complete crypt_his function
complete update_history function
complete calc_hpwd func
debug version
safety bug fix:point begin with 2 instead of 0,complete main func,add testfile and some printf in the code
fix bug in calc_hpwd: using finite field arithmetic instead of rational field arithmetic when calc lagrange interpolation
bug fix
add feature:the first 8 login of an user will success.
add paper pdf
delete old readme