Cryptography and Network Security Chapter 1 doc
Cryptography and Network Security Chapter 1 doc
... security
detection, security audit trails, security
recovery
recovery
Model for Network Security
Model for Network Security
Model for Network Security
Model for Network Security
using this ...
Model for Network Access
Security
Security
Cryptography and
Cryptography and
Network Security
Network Security
Chapter 1
Chapter 1
Fourth Edi...
Cryptography and Network Security Chapter 8 doc
... 11 13 17 19 23 29 31 37 41 43 47 53 59
2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59
61 67 71 73 79 83 89 97 10 1 10 3 10 7 10 9 11 3 12 7
61 67 71 73 79 83 89 97 10 1 10 3 10 7 10 9 11 3 12 7
13 1 13 7 ... 83 89 97 10 1 10 3 10 7 10 9 11 3 12 7
13 1 13 7 13 9 14 9 15 1 15 7 16 3 16 7 17 3 17 9 18 1 19 1
13 1 13 7 13 9 14 9 15 1 15 7...
Cryptography and Network Security Chapter 9 doc
...
=17
=17
x
x
11 =18 7
11 =18 7
"?
"?
D
D
ø(
ø(
n
n
)=(
)=(
p–
p–
1) (
1) (
q-
q-
1) =16
1) =16
x
x
10 =16 0
10 =16 0
@?
@?
e
e
&
&
gcd(e ,16 0) =1; ... 7
4
4
.7
.7
1
1
= 3.7 = 10 mod 11
= 3.7 = 10 mod 11
eg.
eg.
3
3
12 9
12 9
= 3
= 3
12 8
12 8
.3
.3
1
1
= 5.3 = 4 mod 11
= 5.3 = 4 mod 11
Expone...
Cryptography and Network Security Chapter 2 pdf
... j k l m n o p q r s t u v w x y z
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
then have Caesar cipher ... 3.4 × 10
38
2
12 7
µs = 5.4 × 10
24
years 5.4 × 10
18
years
16 8
2
16 8
= 3.7 × 10
50
2
16 7
µs = 5.9 × 10
36
years 5.9 × 10
30
years
26 characte...
Cryptography and Network Security Chapter 6 pptx
...
standard allows any number of bit (1, 8, 64 or
standard allows any number of bit (1, 8, 64 or
12 8 etc) to be feed back
12 8 etc) to be feed back
denoted CFB -1, CFB-8, CFB-64, CFB -12 8 etc ... DES
K1
K1
(O
(O
i -1
i -1
)
)
O
O
-1
-1
= IV
= IV
uses: stream encryption on noisy channels
uses: stream encryption on noisy channels
Output FeedBack (OFB)
Output FeedBack (OFB)...
Cryptography and Network Security Chapter 7 pptx
... Feedback Mode
X
X
i
i
= E
= E
Km
Km
[
[
X
X
i -1
i -1
]
]
ANSI X9 .17 PRG
ANSI X9 .17 PRG
Cryptography and
Cryptography and
Network Security
Network Security
Chapter 7
Chapter 7
Fourth Edition
Fourth ... published collections of random numbers
a few published collections of random numbers
Rand Co, in 19 55, published 1 million numbers
Rand Co, in 19 55, p...
Cryptography and Network Security Chapter 10 pptx
...
248
248
97
97
= 16 0
= 16 0
(Alice)
(Alice)
K
K
AB
AB
= y
= y
A
A
x
x
B
B
mod 353 =
mod 353 =
40
40
233
233
= 16 0
= 16 0
(Bob)
(Bob)
Cryptography and
Cryptography and
Network Security
Network ...
Equivalent Security
Equivalent Security
Symmetric
scheme
(key size in
bits)
ECC-based
scheme
(size of n in
bits)
RSA/DSA
RSA/DSA
(modulus size
in bits)...
Cryptography and Network Security Chapter 13 pot
... 64
•
and q is a prime factor of
and q is a prime factor of
(p -1)
(p -1)
choose
choose
g = h
g = h
(p -1) /q
(p -1) /q
•
where
where
h<p -1, h
h<p -1, h
(p -1) /q
(p -1) /q
(mod p) > 1
(mod ... Signature
Algorithm
Algorithm
(DSA)
(DSA)
Cryptography and
Cryptography and
Network Security
Network Security
Chapter 13
Chapter 13
Fourth Ed...
Cryptography and Network Security Block Cipher doc
... S
1
136 010 14 311 5 719 42 812 15
0 510 37 912 1 511 2 613 814 14
835 911 12 610 113 214 4 715 0
709 512 610 3 811 15 211 3 414
CS595 -Cryptography and Network Security
Permutation Table
q The permutation after each round
25 411 22
63 013 19
932732
14 2482
10 311 85
262 315 1
17 2 812 29
212 0 716
CS595 -Cryptography ... array(i))
13 2 313 02928
292827262524
25242322 212 0...
Cryptography and Network Security docx
... Wired and Wireless Networks, Kameswari Chebrolu and Bhaskaran Raman, 09 -13 May 2005
Cryptography and Network
Security
Bhaskaran Raman
Department of CSE, IIT Kanpur
Reference: Whitfield Diffie and ... Wired and Wireless Networks, Kameswari Chebrolu and Bhaskaran Raman, 09 -13 May 2005
Digital Encryption Standard
(DES)
64 bits 64 bits
+
64 bits
Plain-text Key Cipher-text
R1...
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