What is cryptography?
Cryptography is a method of protecting information and communications using codes so that only those for whom the information is intended can read and process it.
In computer science, cryptography refers to secure information and communication techniques derived from mathematical concepts and a set of rule-based calculations called algorithms to transform messages in ways that are hard to decipher. These deterministic algorithms are used for cryptographic key generation, digital signing, verification to protect data privacy, web browsing on the internet, and confidential communications such as credit card transactions and email.
Cryptography techniques
Cryptography is closely related to the disciplines of cryptology and cryptanalysis. It includes techniques such as microdots, merging words with images, and other ways to hide information in storage or transit. However, in today’s computer-centric world, cryptography is most often associated with scrambling plaintext (ordinary text, sometimes referred to as cleartext) into ciphertext (a process called encryption), then back again (known as decryption). Individuals who practice this field are known as cryptographers.
- What is Decryption?In digital security, encryption and decryption engage in an intricate interplay, much like two facets of a single entity. Encryption involves the skill of protecting data by transforming it into an incomprehensible code. At the same time, decryption is the procedure that deciphers this code, unveiling the initial information concealed beneath intricate layers. Let’s set… Read more: What is Decryption?
- What is Twofish? Is Twofish secure?Twofish is the successor to Blowfish and, like its predecessor, uses symmetric encryption, so only one 256-bit key is necessary. This technique is one of the fastest encryption algorithms and is ideal for both hardware and software environments. When it was released, it was a finalist for the National Institute of Technology and Science’s (NIST’s) competition to find… Read more: What is Twofish? Is Twofish secure?
- What is Blowfish in security? Who uses Blowfish?Blowfish is the first symmetric encryption algorithm created by Bruce Schneier in 1993. Symmetric encryption uses a single encryption key to both encrypt and decrypt data. The sensitive data and the symmetric encryption key are utilized within the encryption algorithm to turn the sensitive data into ciphertext. Blowfish and its successor, Twofish, were in the running to replace the Data Encryption Standard… Read more: What is Blowfish in security? Who uses Blowfish?
- Tunneling or Port Forwarding
Tunneling is generally done by encapsulating the private network data and protocol information within the public network transmission units so that the private network protocol information appears to the public network as data. Tunneling allows the use of the Internet, a public network, to convey data on behalf of a private network. One approach to… Read more: Tunneling or Port Forwarding - DEFINITION: binarybinary What is binary? Binary describes a numbering scheme with only two possible values for each digit — 0 or 1 — and is the basis for all binary code used in computing systems. These systems use this code to understand operational instructions and user input and to present a relevant output to the user. Binary also refers to any digital encoding/decoding system with… Read more: DEFINITION: binary
