pic 16f88

You have two values to compare for each individuals.
One being the pin number, the other being the thumb data. The pin number has to match the thumb data.

Data Read
BANKSEL EEADR ; Select Bank of EEADR
MOVF ADDR, W ;
MOVWF EEADR ; Data Memory Address
; to read
BANKSEL EECON1 ; Select Bank of EECON1
BCF EECON1, EEPGD; Point to Data memory
BSF EECON1, RD ; EE Read
BANKSEL EEDATA ; Select Bank of EEDATA
MOVF EEDATA, W ; W = EEDATA

Data Write:

BANKSEL EECON1 ; Select Bank of
; EECON1
BTFSC EECON1, WR ; Wait for write
GOTO $-1 ; to complete
BANKSEL EEADR ; Select Bank of
; EEADR
MOVF ADDR, W ;
MOVWF EEADR ; Data Memory
; Address to write
MOVF VALUE, W ;
MOVWF EEDATA ; Data Memory Value
; to write
BANKSEL EECON1 ; Select Bank of
; EECON1
BCF EECON1, EEPGD ; Point to DATA
; memory
BSF EECON1, WREN ; Enable writes
BCF INTCON, GIE ; Disable INTs.
MOVLW 55h ;
MOVWF EECON2 ; Write 55h
MOVLW AAh ;
MOVWF EECON2 ; Write AAh
BSF EECON1, WR ; Set WR bit to
; begin write
BSF INTCON, GIE ; Enable INTs.
BCF EECON1, WREN ; Disable writes

It's on the data sheet.