Dinh chinh xac nguoi tap la ai vi mat khau de ma

dinh chinh xac nguoi tap la ai (vi mat khau de ma, chinh sira file van
ban)
- Mot dac diem sinh hoc cu the dm
mOi
ca nhan, dugc dung de xac dux
ca
nhan d6 (vi du van tay, \Tong mac, tieng n6i da dugc s6 h6a)
- Dac biet la chit 14 s6 sir dung ding nghe PKI.
Trong cac• loai tren, chi co chit
ky s6
la dap img day du cac dieu kien
cita chit 14 died tir an toan va co the sir dung thay the cho chit ky (va &Au)
truyen thOng khi khi 14 cac van ban dien tir. Cac loai chit 14 dien tit khac
thus mg chi dugc sir dung han the trong not be cac doanh nghiep (vi
kiem tra nhan vien) hoac trong met s6 giao dich B2C (vi du the ATM, the
tin dung ngan hang cap cho khach hang).
CO the thay sit khac biet re rang nhat giita chit 14 s6 va cac loai chit 14
dien tir khac: chit 14 se (cua
mot t6 chirc hay ca nhan) dugc tao ra trong
timg l'an 14 van ban dien tir la duy nhat, gin voi not dung cila van ban d6;
mOi
van ban khac nhau se tap ra cac chit
ky s6
khac nhau (nhung van xac
dinh duce chi' the 14 la ai tir chit 14
s6
do). Trong khi d6, cac chit ky dien
tir khac la duy
nhAt, gieng nhau trong cac giao dich dien tir dugc awe hien.
Theo quy dinh dm EU, trong cac lo4i chit IcS1 dien tir chi co chit ky
s6
co gia tri lam bang chimg truac toa khi co tranh chap phat sinh
Doi vii cac loai chit 14 dien tir thong thutmg, du dugc xac thuc boi met
to chirc chimg thuc, kha nang ap dung trong cac
giao dich din tir la rat thAp
vi de an town thAp. Vi du, dung ban scan van tay IA chit IcS1 dien tir cho Nip
ding IA met phucmg phap khong an town vi viec gia
moo rat
a
clang v6i dieu
kien cong nghe hien nay. Tuang to nhu Vay, diing Ong mac, giong not hay
cac mat khau cling dugc coi la cac phuong phap khong an town trong cac giao
dich dien tir. Tuy nhien, cac phuang phap
nay van
dugc sir dung trong met s6
hoat &Ong an ninh not be trong cac to chirc.
Hien nay, ding nghe PKI dugc coi la cong nghe
tot nhat
co the tao ra cac
chit 14 dien tir dac thu (chit ky so) dam bao dugc cac yeu cau trong giao dich
dien tir va dugc lust phap cac nu& thita nhan ring
rai, co the lam bang chirng
cho cac giao dich dien tir neu co tranh chAp phat sinh.

Nhu vay, vai tro quan tr9ng nhat khi ap dung chit ky s6 vao cac giao
dich dien tir la cua to chirc chimg that. T6 chirc chimg that sir dung cac
chimg chi s6 lam cong cu rang buOc khOa cong khai cua thue bao va thong
tin xac thuc thue bao do (ten, dia chi...).
Ban chat dm hoat dOng chung that chit ky dien tir la cap chuong trinh
khoa bi mat va chimg thu dien tir cho nguoi sir dung. Nhitng hoat d'eng
chinh cua dich vg chimg that chit ky dien tir gem:
- Cap, gia han, tam dinh chi, phut hei, thu hei chimg thu dien
- Cung cap thong tin can thiet de gill!) chimg that chit ky dien tit cua
nguoi ky thong diep dit
- Cung cap cac dich vu lchae lien quan den chit ky dien tir va chimg
that chit
ks,
dien tir theo quy dinh cua phap luSt. (Nguen: Dieu 28, Lust giao
dich dien tir).