AN TON THNG MI IN TGing vin hng dn: Nguyn Phng AnhThnh vin:L Thi HongTrn Vn HongKhng Trng ip

Chng 1: Tng quan v thng mi in tKhi nimThng mi in t (e-commerce) l s mua bn sn phm hay dch v trn cc h thng in t nhInternetv ccmng my tnh.

Thng mi in t da trn mt s cng ngh nh:Chuyn tin in tQun l chui dy chuyn cung ngTip th InternetGiao dch trc tuynTrao i d liu in t Cch thng qun l hng tn khoCc h thng t ng thu thp d liu

Cc hnh thc thng mi in tCc i tng tham gia:Chnh ph(G - Goverment)Doanh nghip(B - Business)Khch hng(C - Customer hay Consumer)

Hnh thc theo i tng tham gia:B2C, B2B, B2G, G2B,G2G, G2C, C2G, C2B, C2C

Mi trng trong thng mi in t gm cc nhn t:H tng c s cng ngh H tng c s nhn lc Bo mt, an ton H thng thanh ton t ng Bo v s hu tr tuHnh lang php l

Cc phng php bo mt trong thng mi in t:M haCh k in tTng laBo v vt l

Chng 2: Tng laTng quan:Tng la (Firewall) l mt thit b phn cng v/hoc phn mm hot ng trong mt mi trng my tnh ni mng.

Nhim v c bn:Kim sot giao tip d liu gia hai vng khc nhau.C 2 loi tng la thng dng l :Tng la bo vTng la ngn chn

Cc kiu tng la:Truyn thng c thc hin gia mt nt n v mng, hay gia mt s mng.Truyn thng c chn ti tng mng hay ti tng ng dng.Tng la c theo di trng thi ca truyn thng.

Demo

Xy dng lut cho tng la

Chng 3: Phng php m ha s dung thut ton AESTng quan AES (Advanced Encryption Standard):L chun m d liu mi c a ra bi Vin tiu chun v cng ngh quc gia Hoa K thng 10 nm 2000.L m khi i xng vi ba kch thc kha c th la chn (128 bt, 192 bt v 256 bt).

Chun m d liu AES:

a0,0a0,1a0,2a0,3a1,0a1,1a1,2a1,3a2,0a2,1a2,2a2,3a3,0a3,1a3,2a3,3

S vng lp

Qu trnh m ha AES 128 bt

SubBytes

ShiftRows

MixColumnsC(x) = 3x^3 + x^2 + x + 2 (modulo x^4+1)

AddRoundKey

DEMO

M ha s dng thut ton AES

Cm n cc thy c cng ton th cc bn lng nghe!