Difference between revisions of "Bitcoin and Cryptocurrency Technologies"
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(Created page with "https://www.coursera.org/learn/cryptocurrency == Cryptographic Hash Functions ==") |
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== Cryptographic Hash Functions == | == Cryptographic Hash Functions == | ||
| + | |||
| + | === Hash Function === | ||
| + | |||
| + | - Takes any string as input | ||
| + | - Fixed-size output (we'll use 256 bits) | ||
| + | - efficiently computable | ||
| + | |||
| + | Security properties: | ||
| + | |||
| + | - Collision-free | ||
| + | - Hiding | ||
| + | - Puzzle-friendly | ||
Revision as of 17:33, 22 July 2017
https://www.coursera.org/learn/cryptocurrency
Cryptographic Hash Functions
Hash Function
- Takes any string as input - Fixed-size output (we'll use 256 bits) - efficiently computable
Security properties:
- Collision-free - Hiding - Puzzle-friendly