Cybersecurity | Cryptography Secrecy | Symmetric Key Algorithm

#cybersecurity #databreach #datarisk #cybersecuritygoals #breachimpact #cryptography #confidentiality #integrity #authentication #nonrepudiation #symmetriccryptography #ecdhpalgorithm #privatekey #secretkeys #alicebob #moderncryptography #algorithms * Hello everyone, welcome back, in this video, I am explaining modern cryptography with three types of algorithms (Symmetric Key, Asymmetric Key, Hashing) commonly used today ! * Cryptographic Secrecy & Symmetric Key (secret / private key) Algorithms ^ Early days of cryptography, “security through obscurity” ^ Best way to keep algorithm secure was to hide details ^ Modern cryptosystems do not rely on algorithms secrecy ^ Rely on secrecy of one/more cryptographic keys used ^ Length of key is an extremely important factor in determining the strength of the cryptosystem ^ 56-bit Data Encryption Standard (DES) algorithm is no longer secure ^ Several advances in cryptanalysis techniques ^ Modern cryptographic systems use at least 128-bit key ^ Longer the key, harder it is to break the cryptosystem ^ Symmetric cryptography rely on a “shared secret” encryption key distributed ^ This key is used by all members to encrypt / decrypt messages ^ Sender & receiver both possess a copy of the shared key ^ Symmetric key cryptography has several weaknesses * YouTube channel link: https://www.youtube.com/@NareshKSHETRI * Cybersecurity playlist in my Channel: https://www.youtube.com/playlist?list=PL7-xjgCdZq85ZwT6L6UHLc39rGGGX60Wc * LinkedIn (let us connect): https://www.linkedin.com/in/NareshKshetri/ * Website (Google Sites): https://sites.google.com/view/NareshKshetri * Please like, share, & subscribe if the video was helpful !