trapdoor function
(mathematics, cryptography) A function that is easy to compute in one direction but difficult to compute in the opposite direction (finding its inverse) without special information.
A substance or agent that prevents or reverses pollution.
plural of sharpling
The amount of storage space in the boot or trunk of a motor vehicle.
研究者たちは、片方向では計算が容易だが秘密情報がなければ逆算が困難な一種の関数を用いて通信を保護しており、暗号化は簡単でも秘密鍵なしでは復号が事実上不可能になる。
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