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

Pgp pretty good privacy
Pgp pretty good privacyPgp pretty good privacy
Pgp pretty good privacyPawan Arya
 
symmetric key encryption algorithms
symmetric key encryption algorithms symmetric key encryption algorithms
symmetric key encryption algorithmsRashmi Burugupalli
 
block ciphers
block ciphersblock ciphers
block ciphersAsad Ali
 
Symmetric encryption
Symmetric encryptionSymmetric encryption
Symmetric encryptionDR RICHMOND ADEBIAYE
 
Transport layer security (tls)
Transport layer security (tls)Transport layer security (tls)
Transport layer security (tls)Kalpesh Kalekar
 
2. public key cryptography and RSA
2. public key cryptography and RSA2. public key cryptography and RSA
2. public key cryptography and RSADr.Florence Dayana
 
Symmetric Cipher Model, Substitution techniques, Transposition techniques, St...
Symmetric Cipher Model, Substitution techniques, Transposition techniques, St...Symmetric Cipher Model, Substitution techniques, Transposition techniques, St...
Symmetric Cipher Model, Substitution techniques, Transposition techniques, St...JAINAM KAPADIYA
 
Transposition Cipher
Transposition CipherTransposition Cipher
Transposition Cipherdaniyalqureshi712
 

Empfohlen

Pgp pretty good privacy
Pgp pretty good privacyPgp pretty good privacy
Pgp pretty good privacyPawan Arya
 
symmetric key encryption algorithms
symmetric key encryption algorithms symmetric key encryption algorithms
symmetric key encryption algorithmsRashmi Burugupalli
 
block ciphers
block ciphersblock ciphers
block ciphersAsad Ali
 
Symmetric encryption
Symmetric encryptionSymmetric encryption
Symmetric encryptionDR RICHMOND ADEBIAYE
 
Transport layer security (tls)
Transport layer security (tls)Transport layer security (tls)
Transport layer security (tls)Kalpesh Kalekar
 
2. public key cryptography and RSA
2. public key cryptography and RSA2. public key cryptography and RSA
2. public key cryptography and RSADr.Florence Dayana
 
Symmetric Cipher Model, Substitution techniques, Transposition techniques, St...
Symmetric Cipher Model, Substitution techniques, Transposition techniques, St...Symmetric Cipher Model, Substitution techniques, Transposition techniques, St...
Symmetric Cipher Model, Substitution techniques, Transposition techniques, St...JAINAM KAPADIYA
 
Transposition Cipher
Transposition CipherTransposition Cipher
Transposition Cipherdaniyalqureshi712
 
OSI Security Architecture
OSI Security ArchitectureOSI Security Architecture
OSI Security Architectureuniversity of education,Lahore
 
Transport Layer Security (TLS)
Transport Layer Security (TLS)Transport Layer Security (TLS)
Transport Layer Security (TLS)Arun Shukla
 
5. message authentication and hash function
5. message authentication and hash function5. message authentication and hash function
5. message authentication and hash functionChirag Patel
 
RSA ALGORITHM
RSA ALGORITHMRSA ALGORITHM
RSA ALGORITHMShashank Shetty
 
Symmetric encryption and message confidentiality
Symmetric encryption and message confidentialitySymmetric encryption and message confidentiality
Symmetric encryption and message confidentialityCAS
 
Cryptographic algorithms
Cryptographic algorithmsCryptographic algorithms
Cryptographic algorithmsAnamika Singh
 
Principles of public key cryptography and its Uses
Principles of public key cryptography and its UsesPrinciples of public key cryptography and its Uses
Principles of public key cryptography and its UsesMohsin Ali
 
Secure Socket Layer
Secure Socket LayerSecure Socket Layer
Secure Socket LayerPina Parmar
 
MAC-Message Authentication Codes
MAC-Message Authentication CodesMAC-Message Authentication Codes
MAC-Message Authentication CodesDarshanPatil82
 
Rc4
Rc4Rc4
Rc4Amjad Rehman
 
DES (Data Encryption Standard) pressentation
DES (Data Encryption Standard) pressentationDES (Data Encryption Standard) pressentation
DES (Data Encryption Standard) pressentationsarhadisoftengg
 
Email Security : PGP & SMIME
Email Security : PGP & SMIMEEmail Security : PGP & SMIME
Email Security : PGP & SMIMERohit Soni
 
Block cipher modes of operation
Block cipher modes of operation Block cipher modes of operation
Block cipher modes of operation harshit chavda
 
Data Encryption Standard (DES)
Data Encryption Standard (DES)Data Encryption Standard (DES)
Data Encryption Standard (DES)Haris Ahmed
 
Cryptography.ppt
Cryptography.pptCryptography.ppt
Cryptography.pptUday Meena
 
Security services and mechanisms
Security services and mechanismsSecurity services and mechanisms
Security services and mechanismsRajapriya82
 
SHA- Secure hashing algorithm
SHA- Secure hashing algorithmSHA- Secure hashing algorithm
SHA- Secure hashing algorithmRuchi Maurya
 
Public Key Encryption & Hash functions
Public Key Encryption & Hash functionsPublic Key Encryption & Hash functions
Public Key Encryption & Hash functionsDr.Florence Dayana
 
PGP S/MIME
PGP S/MIMEPGP S/MIME
PGP S/MIMESou Jana
 
Message authentication
Message authenticationMessage authentication
Message authenticationCAS
 
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?

Transport Layer Security (TLS)
Transport Layer Security (TLS)Transport Layer Security (TLS)
Transport Layer Security (TLS)Arun Shukla
 
5. message authentication and hash function
5. message authentication and hash function5. message authentication and hash function
5. message authentication and hash functionChirag Patel
 
Symmetric encryption and message confidentiality
Symmetric encryption and message confidentialitySymmetric encryption and message confidentiality
Symmetric encryption and message confidentialityCAS
 
Cryptographic algorithms
Cryptographic algorithmsCryptographic algorithms
Cryptographic algorithmsAnamika Singh
 
Principles of public key cryptography and its Uses
Principles of public key cryptography and its UsesPrinciples of public key cryptography and its Uses
Principles of public key cryptography and its UsesMohsin Ali
 
Secure Socket Layer
Secure Socket LayerSecure Socket Layer
Secure Socket LayerPina Parmar
 
MAC-Message Authentication Codes
MAC-Message Authentication CodesMAC-Message Authentication Codes
MAC-Message Authentication CodesDarshanPatil82
 
DES (Data Encryption Standard) pressentation
DES (Data Encryption Standard) pressentationDES (Data Encryption Standard) pressentation
DES (Data Encryption Standard) pressentationsarhadisoftengg
 
Email Security : PGP & SMIME
Email Security : PGP & SMIMEEmail Security : PGP & SMIME
Email Security : PGP & SMIMERohit Soni
 
Block cipher modes of operation
Block cipher modes of operation Block cipher modes of operation
Block cipher modes of operation harshit chavda
 
Data Encryption Standard (DES)
Data Encryption Standard (DES)Data Encryption Standard (DES)
Data Encryption Standard (DES)Haris Ahmed
 
Cryptography.ppt
Cryptography.pptCryptography.ppt
Cryptography.pptUday Meena
 
Security services and mechanisms
Security services and mechanismsSecurity services and mechanisms
Security services and mechanismsRajapriya82
 
SHA- Secure hashing algorithm
SHA- Secure hashing algorithmSHA- Secure hashing algorithm
SHA- Secure hashing algorithmRuchi Maurya
 
Public Key Encryption & Hash functions
Public Key Encryption & Hash functionsPublic Key Encryption & Hash functions
Public Key Encryption & Hash functionsDr.Florence Dayana
 
PGP S/MIME
PGP S/MIMEPGP S/MIME
PGP S/MIMESou Jana
 
Message authentication
Message authenticationMessage authentication
Message authenticationCAS
 

Was ist angesagt? (20)

OSI Security Architecture
OSI Security ArchitectureOSI Security Architecture
OSI Security Architecture
 
Transport Layer Security (TLS)
Transport Layer Security (TLS)Transport Layer Security (TLS)
Transport Layer Security (TLS)
 
5. message authentication and hash function
5. message authentication and hash function5. message authentication and hash function
5. message authentication and hash function
 
RSA ALGORITHM
RSA ALGORITHMRSA ALGORITHM
RSA ALGORITHM
 
Symmetric encryption and message confidentiality
Symmetric encryption and message confidentialitySymmetric encryption and message confidentiality
Symmetric encryption and message confidentiality
 
Cryptographic algorithms
Cryptographic algorithmsCryptographic algorithms
Cryptographic algorithms
 
Principles of public key cryptography and its Uses
Principles of public key cryptography and its UsesPrinciples of public key cryptography and its Uses
Principles of public key cryptography and its Uses
 
Secure Socket Layer
Secure Socket LayerSecure Socket Layer
Secure Socket Layer
 
MAC-Message Authentication Codes
MAC-Message Authentication CodesMAC-Message Authentication Codes
MAC-Message Authentication Codes
 
Rc4
Rc4Rc4
Rc4
 
DES (Data Encryption Standard) pressentation
DES (Data Encryption Standard) pressentationDES (Data Encryption Standard) pressentation
DES (Data Encryption Standard) pressentation
 
Email Security : PGP & SMIME
Email Security : PGP & SMIMEEmail Security : PGP & SMIME
Email Security : PGP & SMIME
 
Block cipher modes of operation
Block cipher modes of operation Block cipher modes of operation
Block cipher modes of operation
 
Data Encryption Standard (DES)
Data Encryption Standard (DES)Data Encryption Standard (DES)
Data Encryption Standard (DES)
 
Cryptography.ppt
Cryptography.pptCryptography.ppt
Cryptography.ppt
 
Security services and mechanisms
Security services and mechanismsSecurity services and mechanisms
Security services and mechanisms
 
SHA- Secure hashing algorithm
SHA- Secure hashing algorithmSHA- Secure hashing algorithm
SHA- Secure hashing algorithm
 
Public Key Encryption & Hash functions
Public Key Encryption & Hash functionsPublic Key Encryption & Hash functions
Public Key Encryption & Hash functions
 
PGP S/MIME
PGP S/MIMEPGP S/MIME
PGP S/MIME
 
Message authentication
Message authenticationMessage authentication
Message authentication
 

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
 
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
 
Hash Techniques in Cryptography
Hash Techniques in CryptographyHash Techniques in Cryptography
Hash Techniques in CryptographyBasudev Saha
 

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
 
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
 
Hash Techniques in Cryptography
Hash Techniques in CryptographyHash Techniques in Cryptography
Hash Techniques in Cryptography
 

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

Handwritten Text Recognition for manuscripts and early printed texts
Handwritten Text Recognition for manuscripts and early printed textsHandwritten Text Recognition for manuscripts and early printed texts
Handwritten Text Recognition for manuscripts and early printed textsMaria Levchenko
 
Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024BookNet Canada
 
Scaling API-first – The story of a global engineering organization
Scaling API-first – The story of a global engineering organizationScaling API-first – The story of a global engineering organization
Scaling API-first – The story of a global engineering organizationRadu Cotescu
 
Transforming Data Streams with Kafka Connect: An Introduction to Single Messa...
Transforming Data Streams with Kafka Connect: An Introduction to Single Messa...Transforming Data Streams with Kafka Connect: An Introduction to Single Messa...
Transforming Data Streams with Kafka Connect: An Introduction to Single Messa...HostedbyConfluent
 
Finology Group – Insurtech Innovation Award 2024
Finology Group – Insurtech Innovation Award 2024Finology Group – Insurtech Innovation Award 2024
Finology Group – Insurtech Innovation Award 2024The Digital Insurer
 
08448380779 Call Girls In Civil Lines Women Seeking Men
08448380779 Call Girls In Civil Lines Women Seeking Men08448380779 Call Girls In Civil Lines Women Seeking Men
08448380779 Call Girls In Civil Lines Women Seeking MenDelhi Call girls
 
Unblocking The Main Thread Solving ANRs and Frozen Frames
Unblocking The Main Thread Solving ANRs and Frozen FramesUnblocking The Main Thread Solving ANRs and Frozen Frames
Unblocking The Main Thread Solving ANRs and Frozen FramesSinan KOZAK
 
[2024]Digital Global Overview Report 2024 Meltwater.pdf
[2024]Digital Global Overview Report 2024 Meltwater.pdf[2024]Digital Global Overview Report 2024 Meltwater.pdf
[2024]Digital Global Overview Report 2024 Meltwater.pdfhans926745
 
Presentation on how to chat with PDF using ChatGPT code interpreter
Presentation on how to chat with PDF using ChatGPT code interpreterPresentation on how to chat with PDF using ChatGPT code interpreter
Presentation on how to chat with PDF using ChatGPT code interpreternaman860154
 
Histor y of HAM Radio presentation slide
Histor y of HAM Radio presentation slideHistor y of HAM Radio presentation slide
Histor y of HAM Radio presentation slidevu2urc
 
08448380779 Call Girls In Diplomatic Enclave Women Seeking Men
08448380779 Call Girls In Diplomatic Enclave Women Seeking Men08448380779 Call Girls In Diplomatic Enclave Women Seeking Men
08448380779 Call Girls In Diplomatic Enclave Women Seeking MenDelhi Call girls
 
Swan(sea) Song – personal research during my six years at Swansea ... and bey...
Swan(sea) Song – personal research during my six years at Swansea ... and bey...Swan(sea) Song – personal research during my six years at Swansea ... and bey...
Swan(sea) Song – personal research during my six years at Swansea ... and bey...Alan Dix
 
CNv6 Instructor Chapter 6 Quality of Service
CNv6 Instructor Chapter 6 Quality of ServiceCNv6 Instructor Chapter 6 Quality of Service
CNv6 Instructor Chapter 6 Quality of Servicegiselly40
 
The 7 Things I Know About Cyber Security After 25 Years | April 2024
The 7 Things I Know About Cyber Security After 25 Years | April 2024The 7 Things I Know About Cyber Security After 25 Years | April 2024
The 7 Things I Know About Cyber Security After 25 Years | April 2024Rafal Los
 
04-2024-HHUG-Sales-and-Marketing-Alignment.pptx
04-2024-HHUG-Sales-and-Marketing-Alignment.pptx04-2024-HHUG-Sales-and-Marketing-Alignment.pptx
04-2024-HHUG-Sales-and-Marketing-Alignment.pptxHampshireHUG
 
IAC 2024 - IA Fast Track to Search Focused AI Solutions
IAC 2024 - IA Fast Track to Search Focused AI SolutionsIAC 2024 - IA Fast Track to Search Focused AI Solutions
IAC 2024 - IA Fast Track to Search Focused AI SolutionsEnterprise Knowledge
 
WhatsApp 9892124323 ✓Call Girls In Kalyan ( Mumbai ) secure service
WhatsApp 9892124323 ✓Call Girls In Kalyan ( Mumbai ) secure serviceWhatsApp 9892124323 ✓Call Girls In Kalyan ( Mumbai ) secure service
WhatsApp 9892124323 ✓Call Girls In Kalyan ( Mumbai ) secure servicePooja Nehwal
 
A Domino Admins Adventures (Engage 2024)
A Domino Admins Adventures (Engage 2024)A Domino Admins Adventures (Engage 2024)
A Domino Admins Adventures (Engage 2024)Gabriella Davis
 
Boost PC performance: How more available memory can improve productivity
Boost PC performance: How more available memory can improve productivityBoost PC performance: How more available memory can improve productivity
Boost PC performance: How more available memory can improve productivityPrincipled Technologies
 
The Role of Taxonomy and Ontology in Semantic Layers - Heather Hedden.pdf
The Role of Taxonomy and Ontology in Semantic Layers - Heather Hedden.pdfThe Role of Taxonomy and Ontology in Semantic Layers - Heather Hedden.pdf
The Role of Taxonomy and Ontology in Semantic Layers - Heather Hedden.pdfEnterprise Knowledge
 

Kürzlich hochgeladen (20)

Handwritten Text Recognition for manuscripts and early printed texts
Handwritten Text Recognition for manuscripts and early printed textsHandwritten Text Recognition for manuscripts and early printed texts
Handwritten Text Recognition for manuscripts and early printed texts
 
Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
Transcript: #StandardsGoals for 2024: What’s new for BISAC - Tech Forum 2024
 
Scaling API-first – The story of a global engineering organization
Scaling API-first – The story of a global engineering organizationScaling API-first – The story of a global engineering organization
Scaling API-first – The story of a global engineering organization
 
Transforming Data Streams with Kafka Connect: An Introduction to Single Messa...
Transforming Data Streams with Kafka Connect: An Introduction to Single Messa...Transforming Data Streams with Kafka Connect: An Introduction to Single Messa...
Transforming Data Streams with Kafka Connect: An Introduction to Single Messa...
 
Finology Group – Insurtech Innovation Award 2024
Finology Group – Insurtech Innovation Award 2024Finology Group – Insurtech Innovation Award 2024
Finology Group – Insurtech Innovation Award 2024
 
08448380779 Call Girls In Civil Lines Women Seeking Men
08448380779 Call Girls In Civil Lines Women Seeking Men08448380779 Call Girls In Civil Lines Women Seeking Men
08448380779 Call Girls In Civil Lines Women Seeking Men
 
Unblocking The Main Thread Solving ANRs and Frozen Frames
Unblocking The Main Thread Solving ANRs and Frozen FramesUnblocking The Main Thread Solving ANRs and Frozen Frames
Unblocking The Main Thread Solving ANRs and Frozen Frames
 
[2024]Digital Global Overview Report 2024 Meltwater.pdf
[2024]Digital Global Overview Report 2024 Meltwater.pdf[2024]Digital Global Overview Report 2024 Meltwater.pdf
[2024]Digital Global Overview Report 2024 Meltwater.pdf
 
Presentation on how to chat with PDF using ChatGPT code interpreter
Presentation on how to chat with PDF using ChatGPT code interpreterPresentation on how to chat with PDF using ChatGPT code interpreter
Presentation on how to chat with PDF using ChatGPT code interpreter
 
Histor y of HAM Radio presentation slide
Histor y of HAM Radio presentation slideHistor y of HAM Radio presentation slide
Histor y of HAM Radio presentation slide
 
08448380779 Call Girls In Diplomatic Enclave Women Seeking Men
08448380779 Call Girls In Diplomatic Enclave Women Seeking Men08448380779 Call Girls In Diplomatic Enclave Women Seeking Men
08448380779 Call Girls In Diplomatic Enclave Women Seeking Men
 
Swan(sea) Song – personal research during my six years at Swansea ... and bey...
Swan(sea) Song – personal research during my six years at Swansea ... and bey...Swan(sea) Song – personal research during my six years at Swansea ... and bey...
Swan(sea) Song – personal research during my six years at Swansea ... and bey...
 
CNv6 Instructor Chapter 6 Quality of Service
CNv6 Instructor Chapter 6 Quality of ServiceCNv6 Instructor Chapter 6 Quality of Service
CNv6 Instructor Chapter 6 Quality of Service
 
The 7 Things I Know About Cyber Security After 25 Years | April 2024
The 7 Things I Know About Cyber Security After 25 Years | April 2024The 7 Things I Know About Cyber Security After 25 Years | April 2024
The 7 Things I Know About Cyber Security After 25 Years | April 2024
 
04-2024-HHUG-Sales-and-Marketing-Alignment.pptx
04-2024-HHUG-Sales-and-Marketing-Alignment.pptx04-2024-HHUG-Sales-and-Marketing-Alignment.pptx
04-2024-HHUG-Sales-and-Marketing-Alignment.pptx
 
IAC 2024 - IA Fast Track to Search Focused AI Solutions
IAC 2024 - IA Fast Track to Search Focused AI SolutionsIAC 2024 - IA Fast Track to Search Focused AI Solutions
IAC 2024 - IA Fast Track to Search Focused AI Solutions
 
WhatsApp 9892124323 ✓Call Girls In Kalyan ( Mumbai ) secure service
WhatsApp 9892124323 ✓Call Girls In Kalyan ( Mumbai ) secure serviceWhatsApp 9892124323 ✓Call Girls In Kalyan ( Mumbai ) secure service
WhatsApp 9892124323 ✓Call Girls In Kalyan ( Mumbai ) secure service
 
A Domino Admins Adventures (Engage 2024)
A Domino Admins Adventures (Engage 2024)A Domino Admins Adventures (Engage 2024)
A Domino Admins Adventures (Engage 2024)
 
Boost PC performance: How more available memory can improve productivity
Boost PC performance: How more available memory can improve productivityBoost PC performance: How more available memory can improve productivity
Boost PC performance: How more available memory can improve productivity
 
The Role of Taxonomy and Ontology in Semantic Layers - Heather Hedden.pdf
The Role of Taxonomy and Ontology in Semantic Layers - Heather Hedden.pdfThe Role of Taxonomy and Ontology in Semantic Layers - Heather Hedden.pdf
The Role of Taxonomy and Ontology in Semantic Layers - Heather Hedden.pdf
 

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.