眼下,密码系统正集中力量让解密部分尽可能地难以实施。
The industry standard, known as RSA , relies on two keys, one public and one private.
被称为RSA的行业标准,取决于两种密钥,一种是公开密钥,另一种是秘密密钥。
These keys are very big numbers, each of which is derived from the product of the sametwo prime numbers.
这此密钥都是非常庞大的数字,每一个都来源于两个相同素数的乘积。
Anyone can encrypt a message using the public key, but only someone with the private keycan decrypt it.
任何人都可以使用公开密钥加密消息,但只有拥有秘密密钥的人才能解密。
To find the private key, you have to work out what the primes are from the public key.
为了找到这个秘密密钥,人们不得不进行大量的运算,从公开密钥中找到这两个素数。
Make the primes big enoughand hunting big primes is something of a sport amongmathematiciansand the task of factorising the public key to reveal the primes, thoughpossible in theory, would take too long in practice.
虽然,从理论上讲,1、要保证素数足够大发现大的素数是数学家们热衷的一种游戏,2、对公开密钥进行因式分解希望找到这些素数,这两项任务是可能的,但是在实际中将会花费很长时间。
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