Difference between revisions of "Bitcoin and Cryptocurrency Technologies"
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| Line 5: | Line 5: | ||
=== Hash Function === | === Hash Function === | ||
| − | + | * Takes any string as input | |
| − | + | * Fixed-size output (we'll use 256 bits) | |
| − | + | * efficiently computable | |
Security properties: | Security properties: | ||
| − | + | * Collision-free | |
| − | + | * Hiding | |
| − | + | * Puzzle-friendly | |
Latest 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