SlideShare ist ein Scribd-Unternehmen logo

Conventional Encryption NS2

•Als PPT, PDF herunterladen•
•
K
koolkampus
Technologie
1 von 26
Chapter 2 Conventional Encryption Message Confidentiality Henric Johnson Blekinge Institute of Technology, Sweden http://www.its.bth.se/staff/hjo/ [email_address]
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object]
Conventional Encryption Principles ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Conventional Encryption Principles
Cryptography ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Average time required for exhaustive key search 2.15 milliseconds 2 32 = 4.3 x 10 9 32 5.9 x 10 30 years 2 168 = 3.7 x 10 50 168 5.4 x 10 18 years 2 128 = 3.4 x 10 38 128 10 hours 2 56 = 7.2 x 10 16 56 Time required at 10 6 Decryption/ µs Number of Alternative Keys Key Size (bits)
Feistel Cipher Structure ,[object Object],[object Object]
Feistel Cipher Structure ,[object Object],[object Object],[object Object],[object Object],[object Object]
 
Conventional Encryption Algorithms ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
 
DES ,[object Object],[object Object],[object Object],[object Object],[object Object]
Time to break a code (10 6 decryptions/µs)
Triple DEA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],C = E K3 [D K2 [E K1 [P]]]
Triple DEA
Other Symmetric Block Ciphers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Other Symmetric Block Ciphers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Cipher Block Modes of Operation ,[object Object],[object Object],[object Object]
 
Location of Encryption Device ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
Key Distribution ,[object Object],[object Object],[object Object],[object Object]
Key Distribution (See Figure 2.10) ,[object Object],[object Object],[object Object],[object Object]
 
Recommended Reading ,[object Object],[object Object],[object Object]

Empfohlen

Hash Function
Hash Function Hash Function
Hash Function ssuserdfb2da
 
Cryptography and Network Security
Cryptography and Network SecurityCryptography and Network Security
Cryptography and Network SecurityPa Van Tanku
 
CRYPTOGRAPHY AND NETWORK SECURITY
CRYPTOGRAPHY AND NETWORK SECURITYCRYPTOGRAPHY AND NETWORK SECURITY
CRYPTOGRAPHY AND NETWORK SECURITYKathirvel Ayyaswamy
 
Data Encryption Standard
Data Encryption StandardData Encryption Standard
Data Encryption StandardAdri Jovin
 
Cryptography
CryptographyCryptography
Cryptographyokolo chukwudumebi prince
 
Elliptic Curve Cryptography
Elliptic Curve CryptographyElliptic Curve Cryptography
Elliptic Curve CryptographyAdri Jovin
 
RSA Algorithm
RSA AlgorithmRSA Algorithm
RSA AlgorithmSrinadh Muvva
 
Lecture 9 key distribution and user authentication
Lecture 9 key distribution and user authentication Lecture 9 key distribution and user authentication
Lecture 9 key distribution and user authentication rajakhurram
 

Empfohlen

Hash Function
Hash Function Hash Function
Hash Function ssuserdfb2da
 
Cryptography and Network Security
Cryptography and Network SecurityCryptography and Network Security
Cryptography and Network SecurityPa Van Tanku
 
CRYPTOGRAPHY AND NETWORK SECURITY
CRYPTOGRAPHY AND NETWORK SECURITYCRYPTOGRAPHY AND NETWORK SECURITY
CRYPTOGRAPHY AND NETWORK SECURITYKathirvel Ayyaswamy
 
Data Encryption Standard
Data Encryption StandardData Encryption Standard
Data Encryption StandardAdri Jovin
 
Cryptography
CryptographyCryptography
Cryptographyokolo chukwudumebi prince
 
Elliptic Curve Cryptography
Elliptic Curve CryptographyElliptic Curve Cryptography
Elliptic Curve CryptographyAdri Jovin
 
RSA Algorithm
RSA AlgorithmRSA Algorithm
RSA AlgorithmSrinadh Muvva
 
Lecture 9 key distribution and user authentication
Lecture 9 key distribution and user authentication Lecture 9 key distribution and user authentication
Lecture 9 key distribution and user authentication rajakhurram
 
Symmetric encryption and message confidentiality
Symmetric encryption and message confidentialitySymmetric encryption and message confidentiality
Symmetric encryption and message confidentialityCAS
 
CS6701 CRYPTOGRAPHY AND NETWORK SECURITY
CS6701 CRYPTOGRAPHY AND NETWORK SECURITYCS6701 CRYPTOGRAPHY AND NETWORK SECURITY
CS6701 CRYPTOGRAPHY AND NETWORK SECURITYKathirvel Ayyaswamy
 
symmetric key encryption algorithms
symmetric key encryption algorithms symmetric key encryption algorithms
symmetric key encryption algorithmsRashmi Burugupalli
 
Codes and Isogenies
Codes and IsogeniesCodes and Isogenies
Codes and IsogeniesPriyanka Aash
 
RSA ALGORITHM
RSA ALGORITHMRSA ALGORITHM
RSA ALGORITHMShashank Shetty
 
Cryptography Fundamentals
Cryptography FundamentalsCryptography Fundamentals
Cryptography FundamentalsDuy Do Phan
 
Public Key Cryptosystem
Public Key CryptosystemPublic Key Cryptosystem
Public Key CryptosystemDevakumar Kp
 
Cryptography
CryptographyCryptography
CryptographyKARNAN L S
 
Hash Function
Hash FunctionHash Function
Hash FunctionSiddharth Srivastava
 
Classical encryption techniques
Classical encryption techniquesClassical encryption techniques
Classical encryption techniquesDr.Florence Dayana
 
key distribution in network security
key distribution in network securitykey distribution in network security
key distribution in network securitybabak danyal
 
Elliptic curve cryptography
Elliptic curve cryptographyElliptic curve cryptography
Elliptic curve cryptographyCysinfo Cyber Security Community
 
Number theory and cryptography
Number theory and cryptographyNumber theory and cryptography
Number theory and cryptographyYasser Ali
 
Key management
Key managementKey management
Key managementSujata Regoti
 
cryptography
cryptographycryptography
cryptographyAbhijeet Singh
 
Elgamal & schnorr digital signature scheme copy
Elgamal & schnorr digital signature scheme copyElgamal & schnorr digital signature scheme copy
Elgamal & schnorr digital signature scheme copyNorth Cap University (NCU) Formely ITM University
 
CS6701 CRYPTOGRAPHY AND NETWORK SECURITY
CS6701 CRYPTOGRAPHY AND NETWORK SECURITYCS6701 CRYPTOGRAPHY AND NETWORK SECURITY
CS6701 CRYPTOGRAPHY AND NETWORK SECURITYKathirvel Ayyaswamy
 
Authentication Application in Network Security NS4
Authentication Application in Network Security NS4Authentication Application in Network Security NS4
Authentication Application in Network Security NS4koolkampus
 
Message authentication
Message authenticationMessage authentication
Message authenticationCAS
 
Information Security Cryptography ( L02- Types Cryptography)
Information Security Cryptography ( L02- Types Cryptography)Information Security Cryptography ( L02- Types Cryptography)
Information Security Cryptography ( L02- Types Cryptography)Anas Rock
 
latest IEEE 2015 wireless security
latest IEEE 2015 wireless securitylatest IEEE 2015 wireless security
latest IEEE 2015 wireless securityHari Krishnan
 
Recording formats and_editing_softwares
Recording formats and_editing_softwaresRecording formats and_editing_softwares
Recording formats and_editing_softwaresAzizur Rahman
 

Weitere ähnliche Inhalte

Was ist angesagt?

Symmetric encryption and message confidentiality
Symmetric encryption and message confidentialitySymmetric encryption and message confidentiality
Symmetric encryption and message confidentialityCAS
 
CS6701 CRYPTOGRAPHY AND NETWORK SECURITY
CS6701 CRYPTOGRAPHY AND NETWORK SECURITYCS6701 CRYPTOGRAPHY AND NETWORK SECURITY
CS6701 CRYPTOGRAPHY AND NETWORK SECURITYKathirvel Ayyaswamy
 
symmetric key encryption algorithms
symmetric key encryption algorithms symmetric key encryption algorithms
symmetric key encryption algorithmsRashmi Burugupalli
 
Cryptography Fundamentals
Cryptography FundamentalsCryptography Fundamentals
Cryptography FundamentalsDuy Do Phan
 
Public Key Cryptosystem
Public Key CryptosystemPublic Key Cryptosystem
Public Key CryptosystemDevakumar Kp
 
Classical encryption techniques
Classical encryption techniquesClassical encryption techniques
Classical encryption techniquesDr.Florence Dayana
 
key distribution in network security
key distribution in network securitykey distribution in network security
key distribution in network securitybabak danyal
 
Number theory and cryptography
Number theory and cryptographyNumber theory and cryptography
Number theory and cryptographyYasser Ali
 
CS6701 CRYPTOGRAPHY AND NETWORK SECURITY
CS6701 CRYPTOGRAPHY AND NETWORK SECURITYCS6701 CRYPTOGRAPHY AND NETWORK SECURITY
CS6701 CRYPTOGRAPHY AND NETWORK SECURITYKathirvel Ayyaswamy
 
Authentication Application in Network Security NS4
Authentication Application in Network Security NS4Authentication Application in Network Security NS4
Authentication Application in Network Security NS4koolkampus
 
Message authentication
Message authenticationMessage authentication
Message authenticationCAS
 
Information Security Cryptography ( L02- Types Cryptography)
Information Security Cryptography ( L02- Types Cryptography)Information Security Cryptography ( L02- Types Cryptography)
Information Security Cryptography ( L02- Types Cryptography)Anas Rock
 

Was ist angesagt? (20)

Symmetric encryption and message confidentiality
Symmetric encryption and message confidentialitySymmetric encryption and message confidentiality
Symmetric encryption and message confidentiality
 
CS6701 CRYPTOGRAPHY AND NETWORK SECURITY
CS6701 CRYPTOGRAPHY AND NETWORK SECURITYCS6701 CRYPTOGRAPHY AND NETWORK SECURITY
CS6701 CRYPTOGRAPHY AND NETWORK SECURITY
 
symmetric key encryption algorithms
symmetric key encryption algorithms symmetric key encryption algorithms
symmetric key encryption algorithms
 
Codes and Isogenies
Codes and IsogeniesCodes and Isogenies
Codes and Isogenies
 
RSA ALGORITHM
RSA ALGORITHMRSA ALGORITHM
RSA ALGORITHM
 
Cryptography Fundamentals
Cryptography FundamentalsCryptography Fundamentals
Cryptography Fundamentals
 
Public Key Cryptosystem
Public Key CryptosystemPublic Key Cryptosystem
Public Key Cryptosystem
 
Cryptography
CryptographyCryptography
Cryptography
 
Hash Function
Hash FunctionHash Function
Hash Function
 
Classical encryption techniques
Classical encryption techniquesClassical encryption techniques
Classical encryption techniques
 
key distribution in network security
key distribution in network securitykey distribution in network security
key distribution in network security
 
Elliptic curve cryptography
Elliptic curve cryptographyElliptic curve cryptography
Elliptic curve cryptography
 
Number theory and cryptography
Number theory and cryptographyNumber theory and cryptography
Number theory and cryptography
 
Key management
Key managementKey management
Key management
 
cryptography
cryptographycryptography
cryptography
 
Elgamal & schnorr digital signature scheme copy
Elgamal & schnorr digital signature scheme copyElgamal & schnorr digital signature scheme copy
Elgamal & schnorr digital signature scheme copy
 
CS6701 CRYPTOGRAPHY AND NETWORK SECURITY
CS6701 CRYPTOGRAPHY AND NETWORK SECURITYCS6701 CRYPTOGRAPHY AND NETWORK SECURITY
CS6701 CRYPTOGRAPHY AND NETWORK SECURITY
 
Authentication Application in Network Security NS4
Authentication Application in Network Security NS4Authentication Application in Network Security NS4
Authentication Application in Network Security NS4
 
Message authentication
Message authenticationMessage authentication
Message authentication
 
Information Security Cryptography ( L02- Types Cryptography)
Information Security Cryptography ( L02- Types Cryptography)Information Security Cryptography ( L02- Types Cryptography)
Information Security Cryptography ( L02- Types Cryptography)
 

Andere mochten auch

latest IEEE 2015 wireless security
latest IEEE 2015 wireless securitylatest IEEE 2015 wireless security
latest IEEE 2015 wireless securityHari Krishnan
 
Recording formats and_editing_softwares
Recording formats and_editing_softwaresRecording formats and_editing_softwares
Recording formats and_editing_softwaresAzizur Rahman
 
Information Security Lesson 5 - Network Infrastructure - Eric Vanderburg
Information Security Lesson 5 - Network Infrastructure - Eric VanderburgInformation Security Lesson 5 - Network Infrastructure - Eric Vanderburg
Information Security Lesson 5 - Network Infrastructure - Eric VanderburgEric Vanderburg
 
Network security & information security maintainence modified
Network security & information security maintainence modifiedNetwork security & information security maintainence modified
Network security & information security maintainence modifiedKeerthan Shetty
 
international data encryption Algoritm (IDEA) and RC-4
international data encryption Algoritm (IDEA) and RC-4international data encryption Algoritm (IDEA) and RC-4
international data encryption Algoritm (IDEA) and RC-4sikindir
 
Block Cipher Modes of Operation And Cmac For Authentication
Block Cipher Modes of Operation And Cmac For AuthenticationBlock Cipher Modes of Operation And Cmac For Authentication
Block Cipher Modes of Operation And Cmac For AuthenticationVittorio Giovara
 
Unit V network management and security
Unit V network management and securityUnit V network management and security
Unit V network management and securitysangusajjan
 
Introduction of cryptography and network security
Introduction of cryptography and network securityIntroduction of cryptography and network security
Introduction of cryptography and network securityNEHA PATEL
 
Byte Rotation Algorithm
Byte Rotation AlgorithmByte Rotation Algorithm
Byte Rotation AlgorithmEngr0918
 
euclids division lemma
euclids division lemmaeuclids division lemma
euclids division lemmaJashan Kainth
 
Idea (international data encryption algorithm)
Idea (international data encryption algorithm)Idea (international data encryption algorithm)
Idea (international data encryption algorithm)Arofiah Hidayati
 
C08 crypto-digital signature13
C08 crypto-digital signature13C08 crypto-digital signature13
C08 crypto-digital signature13ravik09783
 
Block cipher modes of operation
Block cipher modes of operation Block cipher modes of operation
Block cipher modes of operation harshit chavda
 
Information and Network Security
Information and Network SecurityInformation and Network Security
Information and Network SecurityMaulik Togadiya
 
Digital signature schemes
Digital signature schemesDigital signature schemes
Digital signature schemesravik09783
 

Andere mochten auch (20)

latest IEEE 2015 wireless security
latest IEEE 2015 wireless securitylatest IEEE 2015 wireless security
latest IEEE 2015 wireless security
 
Recording formats and_editing_softwares
Recording formats and_editing_softwaresRecording formats and_editing_softwares
Recording formats and_editing_softwares
 
Information Security Lesson 5 - Network Infrastructure - Eric Vanderburg
Information Security Lesson 5 - Network Infrastructure - Eric VanderburgInformation Security Lesson 5 - Network Infrastructure - Eric Vanderburg
Information Security Lesson 5 - Network Infrastructure - Eric Vanderburg
 
Network security & information security maintainence modified
Network security & information security maintainence modifiedNetwork security & information security maintainence modified
Network security & information security maintainence modified
 
international data encryption Algoritm (IDEA) and RC-4
international data encryption Algoritm (IDEA) and RC-4international data encryption Algoritm (IDEA) and RC-4
international data encryption Algoritm (IDEA) and RC-4
 
Block Cipher Modes of Operation And Cmac For Authentication
Block Cipher Modes of Operation And Cmac For AuthenticationBlock Cipher Modes of Operation And Cmac For Authentication
Block Cipher Modes of Operation And Cmac For Authentication
 
Unit V network management and security
Unit V network management and securityUnit V network management and security
Unit V network management and security
 
Cipher block modes
Cipher block modesCipher block modes
Cipher block modes
 
Introduction of cryptography and network security
Introduction of cryptography and network securityIntroduction of cryptography and network security
Introduction of cryptography and network security
 
Byte Rotation Algorithm
Byte Rotation AlgorithmByte Rotation Algorithm
Byte Rotation Algorithm
 
euclids division lemma
euclids division lemmaeuclids division lemma
euclids division lemma
 
Idea (international data encryption algorithm)
Idea (international data encryption algorithm)Idea (international data encryption algorithm)
Idea (international data encryption algorithm)
 
C08 crypto-digital signature13
C08 crypto-digital signature13C08 crypto-digital signature13
C08 crypto-digital signature13
 
Hash function
Hash function Hash function
Hash function
 
Block cipher modes of operation
Block cipher modes of operation Block cipher modes of operation
Block cipher modes of operation
 
Hash function
Hash functionHash function
Hash function
 
Cryptography
CryptographyCryptography
Cryptography
 
Information and Network Security
Information and Network SecurityInformation and Network Security
Information and Network Security
 
Diffiehellman
DiffiehellmanDiffiehellman
Diffiehellman
 
Digital signature schemes
Digital signature schemesDigital signature schemes
Digital signature schemes
 

Ähnlich wie Conventional Encryption NS2

CH02-CompSec4e.pptx
CH02-CompSec4e.pptxCH02-CompSec4e.pptx
CH02-CompSec4e.pptxams1ams11
 
Comparative Analysis of Cryptographic Algorithms and Advanced Cryptographic A...
Comparative Analysis of Cryptographic Algorithms and Advanced Cryptographic A...Comparative Analysis of Cryptographic Algorithms and Advanced Cryptographic A...
Comparative Analysis of Cryptographic Algorithms and Advanced Cryptographic A...editor1knowledgecuddle
 
Triple Data Encryption Standard (t-DES)
Triple Data Encryption Standard (t-DES) Triple Data Encryption Standard (t-DES)
Triple Data Encryption Standard (t-DES) Hardik Manocha
 
Ch12 Cryptography it-slideshares.blogspot.com
Ch12 Cryptography it-slideshares.blogspot.comCh12 Cryptography it-slideshares.blogspot.com
Ch12 Cryptography it-slideshares.blogspot.comphanleson
 
Cryptography Lecture by Sam Bowne
Cryptography Lecture by Sam BowneCryptography Lecture by Sam Bowne
Cryptography Lecture by Sam BowneSecurityTube.Net
 
CH2 Stallings,_William_Computer_Security_Principles_and_Practice_Pearson [54-...
CH2 Stallings,_William_Computer_Security_Principles_and_Practice_Pearson [54-...CH2 Stallings,_William_Computer_Security_Principles_and_Practice_Pearson [54-...
CH2 Stallings,_William_Computer_Security_Principles_and_Practice_Pearson [54-...ams1ams11
 
Vtu network security(10 ec832) unit 2 notes..
Vtu network security(10 ec832) unit 2 notes..Vtu network security(10 ec832) unit 2 notes..
Vtu network security(10 ec832) unit 2 notes..Jayanth Dwijesh H P
 
Secured algorithm for gsm encryption & decryption
Secured algorithm for gsm encryption & decryptionSecured algorithm for gsm encryption & decryption
Secured algorithm for gsm encryption & decryptionTharindu Weerasinghe
 
Information and data security block cipher and the data encryption standard (...
Information and data security block cipher and the data encryption standard (...Information and data security block cipher and the data encryption standard (...
Information and data security block cipher and the data encryption standard (...Mazin Alwaaly
 
An Understanding And Perspectives of END TO END ENCRYPTION (4).pdf
An Understanding And Perspectives of END TO END ENCRYPTION (4).pdfAn Understanding And Perspectives of END TO END ENCRYPTION (4).pdf
An Understanding And Perspectives of END TO END ENCRYPTION (4).pdfKailasS9
 
6. cryptography
6. cryptography6. cryptography
6. cryptography7wounders
 
CISSP Certification Security Engineering-Part2
CISSP Certification Security Engineering-Part2CISSP Certification Security Engineering-Part2
CISSP Certification Security Engineering-Part2Hamed Moghaddam
 
Different date block size using to evaluate the performance between different...
Different date block size using to evaluate the performance between different...Different date block size using to evaluate the performance between different...
Different date block size using to evaluate the performance between different...IJCNCJournal
 
Cryptography and network security
Cryptography and network securityCryptography and network security
Cryptography and network securityNagendra Um
 

Ähnlich wie Conventional Encryption NS2 (20)

Day5
Day5Day5
Day5
 
CH02-CompSec4e.pptx
CH02-CompSec4e.pptxCH02-CompSec4e.pptx
CH02-CompSec4e.pptx
 
Comparative Analysis of Cryptographic Algorithms and Advanced Cryptographic A...
Comparative Analysis of Cryptographic Algorithms and Advanced Cryptographic A...Comparative Analysis of Cryptographic Algorithms and Advanced Cryptographic A...
Comparative Analysis of Cryptographic Algorithms and Advanced Cryptographic A...
 
82 86
82 8682 86
82 86
 
82 86
82 8682 86
82 86
 
Triple Data Encryption Standard (t-DES)
Triple Data Encryption Standard (t-DES) Triple Data Encryption Standard (t-DES)
Triple Data Encryption Standard (t-DES)
 
Ch12 Cryptography it-slideshares.blogspot.com
Ch12 Cryptography it-slideshares.blogspot.comCh12 Cryptography it-slideshares.blogspot.com
Ch12 Cryptography it-slideshares.blogspot.com
 
Cryptography Lecture by Sam Bowne
Cryptography Lecture by Sam BowneCryptography Lecture by Sam Bowne
Cryptography Lecture by Sam Bowne
 
CH2 Stallings,_William_Computer_Security_Principles_and_Practice_Pearson [54-...
CH2 Stallings,_William_Computer_Security_Principles_and_Practice_Pearson [54-...CH2 Stallings,_William_Computer_Security_Principles_and_Practice_Pearson [54-...
CH2 Stallings,_William_Computer_Security_Principles_and_Practice_Pearson [54-...
 
Vtu network security(10 ec832) unit 2 notes..
Vtu network security(10 ec832) unit 2 notes..Vtu network security(10 ec832) unit 2 notes..
Vtu network security(10 ec832) unit 2 notes..
 
Secured algorithm for gsm encryption & decryption
Secured algorithm for gsm encryption & decryptionSecured algorithm for gsm encryption & decryption
Secured algorithm for gsm encryption & decryption
 
Information and data security block cipher and the data encryption standard (...
Information and data security block cipher and the data encryption standard (...Information and data security block cipher and the data encryption standard (...
Information and data security block cipher and the data encryption standard (...
 
Encryption
EncryptionEncryption
Encryption
 
Network security
Network securityNetwork security
Network security
 
An Understanding And Perspectives of END TO END ENCRYPTION (4).pdf
An Understanding And Perspectives of END TO END ENCRYPTION (4).pdfAn Understanding And Perspectives of END TO END ENCRYPTION (4).pdf
An Understanding And Perspectives of END TO END ENCRYPTION (4).pdf
 
6. cryptography
6. cryptography6. cryptography
6. cryptography
 
CISSP Certification Security Engineering-Part2
CISSP Certification Security Engineering-Part2CISSP Certification Security Engineering-Part2
CISSP Certification Security Engineering-Part2
 
Network Security
Network SecurityNetwork Security
Network Security
 
Different date block size using to evaluate the performance between different...
Different date block size using to evaluate the performance between different...Different date block size using to evaluate the performance between different...
Different date block size using to evaluate the performance between different...
 
Cryptography and network security
Cryptography and network securityCryptography and network security
Cryptography and network security
 

Mehr von koolkampus

Local Area Networks in Data Communication DC24
Local Area Networks in Data Communication DC24Local Area Networks in Data Communication DC24
Local Area Networks in Data Communication DC24koolkampus
 
Bit Oriented Protocols in Data Communication DC23
Bit Oriented Protocols in Data Communication DC23Bit Oriented Protocols in Data Communication DC23
Bit Oriented Protocols in Data Communication DC23koolkampus
 
Data Link Control in Data Communication DC20
Data Link Control in Data Communication DC20Data Link Control in Data Communication DC20
Data Link Control in Data Communication DC20koolkampus
 
Error Detection and Correction in Data Communication DC18
Error Detection and Correction in Data Communication DC18Error Detection and Correction in Data Communication DC18
Error Detection and Correction in Data Communication DC18koolkampus
 
TDM in Data Communication DC16
TDM in Data Communication DC16TDM in Data Communication DC16
TDM in Data Communication DC16koolkampus
 
Radio Communication Band(Data Communication) DC14
Radio Communication Band(Data Communication) DC14Radio Communication Band(Data Communication) DC14
Radio Communication Band(Data Communication) DC14koolkampus
 
Connectors in Data Communication DC12
Connectors in Data Communication DC12Connectors in Data Communication DC12
Connectors in Data Communication DC12koolkampus
 
Transmission of Digital Data(Data Communication) DC11
Transmission of Digital Data(Data Communication) DC11Transmission of Digital Data(Data Communication) DC11
Transmission of Digital Data(Data Communication) DC11koolkampus
 
Analog to Digital Encoding in Data Communication DC9
Analog to Digital Encoding in Data Communication DC9Analog to Digital Encoding in Data Communication DC9
Analog to Digital Encoding in Data Communication DC9koolkampus
 
Signal with DC Component(Data Communication) DC7
Signal with DC Component(Data Communication) DC7Signal with DC Component(Data Communication) DC7
Signal with DC Component(Data Communication) DC7koolkampus
 
Layer Examples in Data Communication CD4
Layer Examples in Data Communication CD4Layer Examples in Data Communication CD4
Layer Examples in Data Communication CD4koolkampus
 
OSI Model (Data Communication) DC3
OSI Model (Data Communication) DC3OSI Model (Data Communication) DC3
OSI Model (Data Communication) DC3koolkampus
 
Basic Concepts in Data Communication DC1
Basic Concepts in Data Communication DC1Basic Concepts in Data Communication DC1
Basic Concepts in Data Communication DC1koolkampus
 
Token Passing in Data Communication DC25
Token Passing in Data Communication DC25Token Passing in Data Communication DC25
Token Passing in Data Communication DC25koolkampus
 
Data Link Protocols in Data Communication DC22
Data Link Protocols in Data Communication DC22Data Link Protocols in Data Communication DC22
Data Link Protocols in Data Communication DC22koolkampus
 
Flow Control in Data Communication DC21
Flow Control in Data Communication DC21Flow Control in Data Communication DC21
Flow Control in Data Communication DC21koolkampus
 
CRC in Data Communication DC19
CRC in Data Communication DC19CRC in Data Communication DC19
CRC in Data Communication DC19koolkampus
 
Telephone Networn in Data Communication DC17
Telephone Networn in Data Communication DC17Telephone Networn in Data Communication DC17
Telephone Networn in Data Communication DC17koolkampus
 
Multiplexing in Data Communication DC15
Multiplexing in Data Communication DC15Multiplexing in Data Communication DC15
Multiplexing in Data Communication DC15koolkampus
 
Transmission Media in Data Communication DC13
Transmission Media in Data Communication DC13Transmission Media in Data Communication DC13
Transmission Media in Data Communication DC13koolkampus
 

Mehr von koolkampus (20)

Local Area Networks in Data Communication DC24
Local Area Networks in Data Communication DC24Local Area Networks in Data Communication DC24
Local Area Networks in Data Communication DC24
 
Bit Oriented Protocols in Data Communication DC23
Bit Oriented Protocols in Data Communication DC23Bit Oriented Protocols in Data Communication DC23
Bit Oriented Protocols in Data Communication DC23
 
Data Link Control in Data Communication DC20
Data Link Control in Data Communication DC20Data Link Control in Data Communication DC20
Data Link Control in Data Communication DC20
 
Error Detection and Correction in Data Communication DC18
Error Detection and Correction in Data Communication DC18Error Detection and Correction in Data Communication DC18
Error Detection and Correction in Data Communication DC18
 
TDM in Data Communication DC16
TDM in Data Communication DC16TDM in Data Communication DC16
TDM in Data Communication DC16
 
Radio Communication Band(Data Communication) DC14
Radio Communication Band(Data Communication) DC14Radio Communication Band(Data Communication) DC14
Radio Communication Band(Data Communication) DC14
 
Connectors in Data Communication DC12
Connectors in Data Communication DC12Connectors in Data Communication DC12
Connectors in Data Communication DC12
 
Transmission of Digital Data(Data Communication) DC11
Transmission of Digital Data(Data Communication) DC11Transmission of Digital Data(Data Communication) DC11
Transmission of Digital Data(Data Communication) DC11
 
Analog to Digital Encoding in Data Communication DC9
Analog to Digital Encoding in Data Communication DC9Analog to Digital Encoding in Data Communication DC9
Analog to Digital Encoding in Data Communication DC9
 
Signal with DC Component(Data Communication) DC7
Signal with DC Component(Data Communication) DC7Signal with DC Component(Data Communication) DC7
Signal with DC Component(Data Communication) DC7
 
Layer Examples in Data Communication CD4
Layer Examples in Data Communication CD4Layer Examples in Data Communication CD4
Layer Examples in Data Communication CD4
 
OSI Model (Data Communication) DC3
OSI Model (Data Communication) DC3OSI Model (Data Communication) DC3
OSI Model (Data Communication) DC3
 
Basic Concepts in Data Communication DC1
Basic Concepts in Data Communication DC1Basic Concepts in Data Communication DC1
Basic Concepts in Data Communication DC1
 
Token Passing in Data Communication DC25
Token Passing in Data Communication DC25Token Passing in Data Communication DC25
Token Passing in Data Communication DC25
 
Data Link Protocols in Data Communication DC22
Data Link Protocols in Data Communication DC22Data Link Protocols in Data Communication DC22
Data Link Protocols in Data Communication DC22
 
Flow Control in Data Communication DC21
Flow Control in Data Communication DC21Flow Control in Data Communication DC21
Flow Control in Data Communication DC21
 
CRC in Data Communication DC19
CRC in Data Communication DC19CRC in Data Communication DC19
CRC in Data Communication DC19
 
Telephone Networn in Data Communication DC17
Telephone Networn in Data Communication DC17Telephone Networn in Data Communication DC17
Telephone Networn in Data Communication DC17
 
Multiplexing in Data Communication DC15
Multiplexing in Data Communication DC15Multiplexing in Data Communication DC15
Multiplexing in Data Communication DC15
 
Transmission Media in Data Communication DC13
Transmission Media in Data Communication DC13Transmission Media in Data Communication DC13
Transmission Media in Data Communication DC13
 

Kürzlich hochgeladen

A Deep Dive on Passkeys: FIDO Paris Seminar.pptx
A Deep Dive on Passkeys: FIDO Paris Seminar.pptxA Deep Dive on Passkeys: FIDO Paris Seminar.pptx
A Deep Dive on Passkeys: FIDO Paris Seminar.pptxLoriGlavin3
 
Generative AI for Technical Writer or Information Developers
Generative AI for Technical Writer or Information DevelopersGenerative AI for Technical Writer or Information Developers
Generative AI for Technical Writer or Information DevelopersRaghuram Pandurangan
 
Gen AI in Business - Global Trends Report 2024.pdf
Gen AI in Business - Global Trends Report 2024.pdfGen AI in Business - Global Trends Report 2024.pdf
Gen AI in Business - Global Trends Report 2024.pdfAddepto
 
Unleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding ClubUnleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding ClubKalema Edgar
 
Take control of your SAP testing with UiPath Test Suite
Take control of your SAP testing with UiPath Test SuiteTake control of your SAP testing with UiPath Test Suite
Take control of your SAP testing with UiPath Test SuiteDianaGray10
 
Ensuring Technical Readiness For Copilot in Microsoft 365
Ensuring Technical Readiness For Copilot in Microsoft 365Ensuring Technical Readiness For Copilot in Microsoft 365
Ensuring Technical Readiness For Copilot in Microsoft 3652toLead Limited
 
SALESFORCE EDUCATION CLOUD | FEXLE SERVICES
SALESFORCE EDUCATION CLOUD | FEXLE SERVICESSALESFORCE EDUCATION CLOUD | FEXLE SERVICES
SALESFORCE EDUCATION CLOUD | FEXLE SERVICESmohitsingh558521
 
How to write a Business Continuity Plan
How to write a Business Continuity PlanHow to write a Business Continuity Plan
How to write a Business Continuity PlanDatabarracks
 
Passkey Providers and Enabling Portability: FIDO Paris Seminar.pptx
Passkey Providers and Enabling Portability: FIDO Paris Seminar.pptxPasskey Providers and Enabling Portability: FIDO Paris Seminar.pptx
Passkey Providers and Enabling Portability: FIDO Paris Seminar.pptxLoriGlavin3
 
DevEX - reference for building teams, processes, and platforms
DevEX - reference for building teams, processes, and platformsDevEX - reference for building teams, processes, and platforms
DevEX - reference for building teams, processes, and platformsSergiu Bodiu
 
DSPy a system for AI to Write Prompts and Do Fine Tuning
DSPy a system for AI to Write Prompts and Do Fine TuningDSPy a system for AI to Write Prompts and Do Fine Tuning
DSPy a system for AI to Write Prompts and Do Fine TuningLars Bell
 
The State of Passkeys with FIDO Alliance.pptx
The State of Passkeys with FIDO Alliance.pptxThe State of Passkeys with FIDO Alliance.pptx
The State of Passkeys with FIDO Alliance.pptxLoriGlavin3
 
TeamStation AI System Report LATAM IT Salaries 2024
TeamStation AI System Report LATAM IT Salaries 2024TeamStation AI System Report LATAM IT Salaries 2024
TeamStation AI System Report LATAM IT Salaries 2024Lonnie McRorey
 
Scanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL CertsScanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL CertsRizwan Syed
 
New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024
New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024
New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024BookNet Canada
 
unit 4 immunoblotting technique complete.pptx
unit 4 immunoblotting technique complete.pptxunit 4 immunoblotting technique complete.pptx
unit 4 immunoblotting technique complete.pptxBkGupta21
 
SIP trunking in Janus @ Kamailio World 2024
SIP trunking in Janus @ Kamailio World 2024SIP trunking in Janus @ Kamailio World 2024
SIP trunking in Janus @ Kamailio World 2024Lorenzo Miniero
 
Streamlining Python Development: A Guide to a Modern Project Setup
Streamlining Python Development: A Guide to a Modern Project SetupStreamlining Python Development: A Guide to a Modern Project Setup
Streamlining Python Development: A Guide to a Modern Project SetupFlorian Wilhelm
 
Advanced Computer Architecture – An Introduction
Advanced Computer Architecture – An IntroductionAdvanced Computer Architecture – An Introduction
Advanced Computer Architecture – An IntroductionDilum Bandara
 
SAP Build Work Zone - Overview L2-L3.pptx
SAP Build Work Zone - Overview L2-L3.pptxSAP Build Work Zone - Overview L2-L3.pptx
SAP Build Work Zone - Overview L2-L3.pptxNavinnSomaal
 

Kürzlich hochgeladen (20)

A Deep Dive on Passkeys: FIDO Paris Seminar.pptx
A Deep Dive on Passkeys: FIDO Paris Seminar.pptxA Deep Dive on Passkeys: FIDO Paris Seminar.pptx
A Deep Dive on Passkeys: FIDO Paris Seminar.pptx
 
Generative AI for Technical Writer or Information Developers
Generative AI for Technical Writer or Information DevelopersGenerative AI for Technical Writer or Information Developers
Generative AI for Technical Writer or Information Developers
 
Gen AI in Business - Global Trends Report 2024.pdf
Gen AI in Business - Global Trends Report 2024.pdfGen AI in Business - Global Trends Report 2024.pdf
Gen AI in Business - Global Trends Report 2024.pdf
 
Unleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding ClubUnleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding Club
 
Take control of your SAP testing with UiPath Test Suite
Take control of your SAP testing with UiPath Test SuiteTake control of your SAP testing with UiPath Test Suite
Take control of your SAP testing with UiPath Test Suite
 
Ensuring Technical Readiness For Copilot in Microsoft 365
Ensuring Technical Readiness For Copilot in Microsoft 365Ensuring Technical Readiness For Copilot in Microsoft 365
Ensuring Technical Readiness For Copilot in Microsoft 365
 
SALESFORCE EDUCATION CLOUD | FEXLE SERVICES
SALESFORCE EDUCATION CLOUD | FEXLE SERVICESSALESFORCE EDUCATION CLOUD | FEXLE SERVICES
SALESFORCE EDUCATION CLOUD | FEXLE SERVICES
 
How to write a Business Continuity Plan
How to write a Business Continuity PlanHow to write a Business Continuity Plan
How to write a Business Continuity Plan
 
Passkey Providers and Enabling Portability: FIDO Paris Seminar.pptx
Passkey Providers and Enabling Portability: FIDO Paris Seminar.pptxPasskey Providers and Enabling Portability: FIDO Paris Seminar.pptx
Passkey Providers and Enabling Portability: FIDO Paris Seminar.pptx
 
DevEX - reference for building teams, processes, and platforms
DevEX - reference for building teams, processes, and platformsDevEX - reference for building teams, processes, and platforms
DevEX - reference for building teams, processes, and platforms
 
DSPy a system for AI to Write Prompts and Do Fine Tuning
DSPy a system for AI to Write Prompts and Do Fine TuningDSPy a system for AI to Write Prompts and Do Fine Tuning
DSPy a system for AI to Write Prompts and Do Fine Tuning
 
The State of Passkeys with FIDO Alliance.pptx
The State of Passkeys with FIDO Alliance.pptxThe State of Passkeys with FIDO Alliance.pptx
The State of Passkeys with FIDO Alliance.pptx
 
TeamStation AI System Report LATAM IT Salaries 2024
TeamStation AI System Report LATAM IT Salaries 2024TeamStation AI System Report LATAM IT Salaries 2024
TeamStation AI System Report LATAM IT Salaries 2024
 
Scanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL CertsScanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL Certs
 
New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024
New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024
New from BookNet Canada for 2024: BNC CataList - Tech Forum 2024
 
unit 4 immunoblotting technique complete.pptx
unit 4 immunoblotting technique complete.pptxunit 4 immunoblotting technique complete.pptx
unit 4 immunoblotting technique complete.pptx
 
SIP trunking in Janus @ Kamailio World 2024
SIP trunking in Janus @ Kamailio World 2024SIP trunking in Janus @ Kamailio World 2024
SIP trunking in Janus @ Kamailio World 2024
 
Streamlining Python Development: A Guide to a Modern Project Setup
Streamlining Python Development: A Guide to a Modern Project SetupStreamlining Python Development: A Guide to a Modern Project Setup
Streamlining Python Development: A Guide to a Modern Project Setup
 
Advanced Computer Architecture – An Introduction
Advanced Computer Architecture – An IntroductionAdvanced Computer Architecture – An Introduction
Advanced Computer Architecture – An Introduction
 
SAP Build Work Zone - Overview L2-L3.pptx
SAP Build Work Zone - Overview L2-L3.pptxSAP Build Work Zone - Overview L2-L3.pptx
SAP Build Work Zone - Overview L2-L3.pptx
 

Conventional Encryption NS2

  • 1. Chapter 2 Conventional Encryption Message Confidentiality Henric Johnson Blekinge Institute of Technology, Sweden http://www.its.bth.se/staff/hjo/ [email_address]
  • 2.
  • 3.
  • 5.
  • 6. Average time required for exhaustive key search 2.15 milliseconds 2 32 = 4.3 x 10 9 32 5.9 x 10 30 years 2 168 = 3.7 x 10 50 168 5.4 x 10 18 years 2 128 = 3.4 x 10 38 128 10 hours 2 56 = 7.2 x 10 16 56 Time required at 10 6 Decryption/ µs Number of Alternative Keys Key Size (bits)
  • 7.
  • 8.
  • 9.  
  • 10.
  • 11.  
  • 12.  
  • 13.
  • 14. Time to break a code (10 6 decryptions/µs)
  • 15.
  • 17.
  • 18.
  • 19.
  • 20.  
  • 21.
  • 22.  
  • 23.
  • 24.
  • 25.  
  • 26.