Glossary term
What is Hash?
In Apex Flow Academy, "Hash" means: A one-way scramble of a value. You can check a value against it but you cannot turn it back. It is taught in Node.js: Build the Back End and APIs and Cybersecurity and Ethical Hacking: Fundamentals. Related terms include Migration, Salt, Placeholder and Session token.
- 2 courses teach it
- plain-word definition
The facts
What is Hash?
A one-way scramble of a value. You can check a value against it but you cannot turn it back. (From Node.js: Build the Back End and APIs. 1 other course defines it for their own subject, so each definition follows.)
What does Hash mean in Node.js: Build the Back End and APIs?
A one-way scramble of a value. You can check a value against it but you cannot turn it back.
What does Hash mean in Cybersecurity and Ethical Hacking: Fundamentals?
A one-way fingerprint of data. The same input always gives the same fingerprint, and you cannot turn the fingerprint back into the input.
Where is Hash taught?
Hash is defined in Node.js: Build the Back End and APIs and Cybersecurity and Ethical Hacking: Fundamentals.
Node.js: Build the Back End and APIsCybersecurity and Ethical Hacking: Fundamentals
Which lessons cover Hash?
These lessons name it in their title or objectives:
- Node.js: Build the Back End and APIs, lesson 4.1: Store passwords the safe way
- Node.js: Build the Back End and APIs, lesson 4.2: Register a user
- Node.js: Build the Back End and APIs, lesson 4.3: Log in and get a token
- Cybersecurity and Ethical Hacking: Fundamentals, lesson 3.3: Passwords: How They Are Stored and Guessed
- Cybersecurity and Ethical Hacking: Fundamentals, lesson 5.3: Fix Passwords: Slow Hashes and Guess Limits
Which terms are related to Hash?
Next to Hash in the course glossaries: Migration, Salt, Placeholder, Session token, SQL injection, Authentication and authorization, SQL, Origin and CORS, Encryption and HTTP and HTTPS.
MigrationSaltPlaceholderSession tokenSQL injectionAuthentication and authorizationSQLOrigin and CORSEncryptionHTTP and HTTPS
The hard questions, answered straight
Bold questions people really ask. Each answer comes from the course data or a settled Academy fact.
Do I need experience before I learn Hash?
It depends on the course. Each course that teaches it lists its own prerequisites, and all are listed at intermediate and beginner level:
- Node.js: Build the Back End and APIs: Basic JavaScript: variables, functions, objects, arrays, conditions and loops.
- Cybersecurity and Ethical Hacking: Fundamentals: No security, networking or programming experience is needed.