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

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

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

• Encryptionworksgreat,unlesssomethinggoeswrong.

• Encryptionworksgreat,aslongaseverythingworksright.

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Overview

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

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

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

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

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

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

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

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

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

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

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

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

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Lecture 10: Network Security · 2015. 11. 28. · ‣ Symmetric key encryption/decryption -Alice and Bob share the same key -challenge: exchanging the key ‣ Asymmetric key encryption/decryption