Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mathematics, cryptography A
function that is easy tocompute in onedirection but difficult to compute in theopposite direction (finding itsinverse ) without special information.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
From the idea that it is easy to fall through a trapdoor but difficult to climb back out.
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