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Cyberhacker Series: Cryptography for Hackers
An excellent training about Network & Security
Cyberhacker Series: Cryptography for Hackers
Cyberhacker Series: Cryptography for HackersThis course is for beginners and IT pros looking to learn more about cryptography Each chapter closes with exercises putting your new learned skills into practical use immediately. What are the pre-requisites for this course?Students should have a working understanding of TCP/IP and networking concepts. What will you be able to do after taking this course?TLS -Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL), both frequently referred to as “SSL”, are cryptographic protocols that provide communications security over a computer network. IPSec -Internet Protocol Security(IPsec) is a network protocol suitethat authenticatesand encryptsthe packetsof data sent over a network. IPsec includes protocols for establishing mutual authenticationbetween agents at the beginning of the session and negotiation of cryptographic keysto use during the session. IPsec can protect data flows between a pair of hosts (host-to-host), between a pair of security gateways (network-to-network), or between a security gateway and a host (network-to-host).Internet Protocol security (IPsec) uses cryptographic security services to protect communications over Internet Protocol (IP) networks. IPsec supports network-level peer authentication, data-origin authentication, data integrity, data confidentiality (encryption), and replay protection. PKI -A public key infrastructure (PKI) is a set of roles, policies, and procedures needed to create, manage, distribute, use, store, and revoke digital certificates and manage public-key encryption. Web Encoding -URL Encoding (Percent Encoding) URLs can only be sent over the Internet using theASCIIcharacter-set. Since URLs often contain characters outside theASCIIset, the URL has to be converted into a validASCIIformat. URL encoding replaces unsafeASCIIcharacters with a “%” followed by twohexadecimaldigits. Symmetric Crypto -Symmetric-key algorithms are algorithms for cryptography that use the same cryptographic keys for bothencryptionof plaintext and decryption of ciphertext. The keys may be identical or there may be a simple transformation to go between the two keys. Asymmetric Crypto – Asymmetric Encryptionis a form ofEncryptionwhere keys come in pairs. . Frequently (but not necessarily), the keys are interchangeable, in the sense that if key A encrypts a message, then B can decrypt it, and if key B encrypts a message, then key A can decrypt it.
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