E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and...

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E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange. 6. Trust and Digital Certificates. 7. Tunnelling. 8. Cryptocurrencies and Blockchain. 9. Future Cryptography. 10. Host Security. Prof Bill Buchanan OBE https://asecuritysite.com/encryption https://asecuritysite.com/esecurity

Transcript of E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and...

Page 1: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

E-Security1.CryptographyFundamentals. 2.SymmetricKeyEncryption. 3.HashingandMAC.4.Asymmetric(Public)KeyEncryption.5.KeyExchange.6.TrustandDigitalCertificates.7.Tunnelling.8.CryptocurrenciesandBlockchain.9.FutureCryptography.10.HostSecurity. ProfBillBuchananOBE https://asecuritysite.com/encryption https://asecuritysite.com/esecurity

Page 2: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

Disclaimer

• Encryptionworksgreat,untilitdoesn't.• Encryptionworksgreat,aslongasnoonemakesamistake.

• Encryptionworksgreat,unlesssomethinggoeswrong.

• Encryptionworksgreat,aslongaseverythingworksright.

Page 3: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

Module Delivery Website

esecurityworkspace.slack.com

@billatnapier

github.com/billbuchanan/esecurity

Overleaf

asecuritysite.com

youtube.com

https://asecuritysite.com/esecurity
Page 4: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

Module Delivery Website

github.com/billbuchanan/esecurity

Overleafyoutube.com

Lectures/LabDemos Courseworksubmission

Labs

https://asecuritysite.com/esecurity
Page 5: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

Draft TimetableWebsite

https://asecuritysite.com/esecurity
Page 6: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

Overview

Page 7: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

1.FundamentalsTraditionalCiphers. Key-basedEncryption.EncodingMethods. FrequencyAnalysis. GCD. RandomNumbers. PrimeNumbers.BigIntegers. EncryptionOperators(MOD,XORandShift). ProfBillBuchananOBE https://asecuritysite.com/encryption

Page 8: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

2.SymmetricKeyBasics BlockorStream? SecretKeyMethodsSaltingAES 3DESChaCha20/Poly1305 KeyEntropyProfBillBuchananOBE https://asecuritysite.com/encryption

Page 9: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

3.HashingandMAC HashingMethods. Cracking. TypicalMethods:MD5,SHA-1,SHA-3,LM,Bcrypt,PBKDF2HashedPasswords. TimedOneTimePasswords. MessageAuthenticationCodes(MACs). ProfBillBuchananOBE https://asecuritysite.com/encryption

Page 10: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

4.AsymmetricKeyPrinciples.RSA. EllipticCurve. UsingPrivateKeytoAuthenticate. PGP:SignedEmail. ProfBillBuchananOBE https://asecuritysite.com/encryption

Page 11: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

5.KeyExchangePrinciples.Diffie-Hellman(DH). Passingthesecretkeywithkeyexchange.EllipticCurveDiffie-Hellman(ECDH)ProfBillBuchananOBE https://asecuritysite.com/encryption

Page 12: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

6.TrustandDigitalCertificates Principles.TrustInfrastructures. PKIInfrastructure. CreatingSignedCertificates.Signatures(ECDSA,Hashed-based). ProfBillBuchananOBE https://asecuritysite.com/encryption

Page 13: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

7.TunnellingSSL/TLS.Keygeneration/keyexchange.SSH.IPSec.ProfBillBuchananOBE https://asecuritysite.com/encryption

Page 14: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

8.Blockchain&Cryptocurrencies Principles.Bitcoin.Ethereum. SmartContracts. ProfBillBuchananOBE https://asecuritysite.com/encryption

Page 15: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

9.FutureCryptoZeroknowledgeproof.Homomorphicencryption.Light-weightcrypto.Quantum-robustcryptography. ProfBillBuchananOBE https://asecuritysite.com/encryption

Page 16: E-Security · E-Security 1. Cryptography Fundamentals. 2. Symmetric Key Encryption. 3. Hashing and MAC. 4. Asymmetric (Public) Key Encryption. 5. Key Exchange.

E-Security1.CryptographyFundamentals. 2.SymmetricKeyEncryption. 3.HashingandMAC.4.Asymmetric(Public)KeyEncryption.5.KeyExchange.6.TrustandDigitalCertificates.7.Tunnelling.8.CryptocurrenciesandBlockchain.9.FutureCryptography.10.HostSecurity. ProfBillBuchananOBE https://asecuritysite.com/encryption https://asecuritysite.com/esecurity


Encryption and Security Issues -- Sheizaf Rafaeli Encryption and Data Security Encryption and Data Security Jungles, Towers, Monkeys, Locks and Keys.

Encryption and Security Issues -- Sheizaf Rafaeli Encryption and Data Security Encryption and Data Security Jungles, Towers, Monkeys, Locks and Keys.

Security fundamentals Topic 4 Encryption. Agenda Using encryption Cryptography Symmetric encryption Hash functions Public key encryption Applying cryptography.

Security fundamentals Topic 4 Encryption. Agenda Using encryption Cryptography Symmetric encryption Hash functions Public key encryption Applying cryptography.

Blue picking hacking Bluetooth Smart Locksconference.hitb.org/hitbsecconf2017ams/materials...Bluetooth 4 security (specification) Pairing Key Generation Encryption Encryption in Bluetooth

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A public key encryption scheme secure against key … · 2009-01-16 · A public key encryption scheme secure against key dependent chosen plaintext and ... security against both

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Security in Overview Computer Networksjain/cse473-16/ftp/i_8sec4.pdf · Secret Key Encryption: Review 1. Secret key encryption requires a shared secret key 2. Block encryption, e.g.,

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Injecting Security Controls in Software Applications · Security Controls: Encryption Cryptographic Storage Strong Encryption Algorithm : • AES Key Management • Store unencrypted

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Security & Privacy DSC340 Mike Pangburn. Agenda Security Encrypted networking Types of encryption Shared key Public key Information privacy.

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Information Security CS 526 · Public Key Encryption Algorithms •Most public-key encryption algorithms use either modular arithmetic number theory, or elliptic curves •RSA –based

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Chapter 8 Security - York University€¦ · Symmetric key crypto: DES. DES: Data Encryption Standard US encryption standard [NIST 1993] 56-bit symmetric key, 64-bit plaintext input

Chapter 8 Security - York University€¦ · Symmetric key crypto: DES. DES: Data Encryption Standard US encryption standard [NIST 1993] 56-bit symmetric key, 64-bit plaintext input

Information Security CS 526 - Purdue University · Public Key Encryption Algorithms •Most public-key encryption algorithms use either modular arithmetic number theory, or elliptic

Information Security CS 526 - Purdue University · Public Key Encryption Algorithms •Most public-key encryption algorithms use either modular arithmetic number theory, or elliptic

Crypto Conclusion - facultystaff.richmond.edudszajda/classes/cs334/Fall_2016/... · Fall 2014 CS 334: Computer Security 6 Message Encryption • if public-key encryption is used:

Crypto Conclusion - facultystaff.richmond.edudszajda/classes/cs334/Fall_2016/... · Fall 2014 CS 334: Computer Security 6 Message Encryption • if public-key encryption is used:

6. Key Security Safeguards - Roger Clarke · 6. Key Security Safeguards Roger Clarke Xamax Consultancy, ... ¥ Cash Transactions, incl. ... 'vouching' ¥ Channel Encryption ...

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Encryption and Security. Outline Overview of encryption –Terminology –History –Common issues Secret-key encryption –Block and stream ciphers –DES –RC5.

Encryption and Security. Outline Overview of encryption –Terminology –History –Common issues Secret-key encryption –Block and stream ciphers –DES –RC5.

Public Key Encryption from trapdoor permutations · Dan Boneh Public Key Encryption from trapdoor permutations Public key encryption: definitions and security Online Cryptography

Public Key Encryption from trapdoor permutations · Dan Boneh Public Key Encryption from trapdoor permutations Public key encryption: definitions and security Online Cryptography

Storage Security: Encryption and Key Management · Storage Security: Encryption and Key Management ... warranties of merchantability and fitness for a ... determine the secret or

Storage Security: Encryption and Key Management · Storage Security: Encryption and Key Management ... warranties of merchantability and fitness for a ... determine the secret or

Key Management and Distribution. YSLInformation Security – Mutual Trust2 Major Issues Involved in Symmetric Key Distribution For symmetric encryption.

Key Management and Distribution. YSLInformation Security – Mutual Trust2 Major Issues Involved in Symmetric Key Distribution For symmetric encryption.

Securing the Cloud - Using Encryption and Key Management to Solve Today's Cloud Security

Securing the Cloud - Using Encryption and Key Management to Solve Today's Cloud Security

Public Key Broadcast Encryption - University of …fuchun/seminars/181214.pdf · 1 Public Key Broadcast Encryption Leyou Zhang Centre for Computer and Information Security University

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