
Mã Hóa và Bảo Mật Thông Tin
Quiz
•
Computers
•
12th Grade
•
Practice Problem
•
Easy
XYZ ABC
Used 13+ times
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142 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đơn vị mã hóa của thuật toán A5/1 là bao nhiêu bit?
1
8
16
32
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Thuật toán A5/1 sử dụng bao nhiêu thanh ghi?
2
3
4
5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chiều dài khóa ban đầu của A5/1 là bao nhiêu bit?
19
22
23
25
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hàm 'maj' trong A5/1 trả về giá trị nào khi có từ hai bit 0 trở lên trong ba bit x, y, z?
0
1
x
y
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Đơn vị mã hóa của RC4 là bao nhiêu bit?
1
8
16
32
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mảng S trong RC4 gồm bao nhiêu số nguyên 8 bit?
128
256
512
1024
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khóa K trong RC4 có thể có chiều dài bao nhiêu?
Từ 1 đến 128 bit
Từ 1 đến 256 bit
Từ 1 đến 512 bit
Từ 1 đến 1024 bit
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