Allen Bradley 5069-l310erm RSA加密算法是一種非對稱加密算法，這種算法非常可靠，密鑰越長，它就越難破解。根據已經披露的文獻，目前被破解的最長RSA密鑰是768個二進制位。
也就是說，長度超過768位的密鑰，還無法破解（至少沒人公開宣布）。因此可以認為，1024位的RSA密鑰基本安全，2048位的密鑰極其安全。
2.RSA算法原理
在了解RSA算法原理之前，先了解一下非對稱加密的過程： 非對稱加密是通過兩個密鑰（公鑰-私鑰）來實現對數據的加密和解密的。公鑰用于加密，私鑰用于解密。對于非對稱的加密和解密為什么可以使用不同的密鑰來進行，這些都是數學上的問題了。不同的非對稱加密算法也會應用到不同的數學知識。接下來就來看看RSA算法是怎么來對數據進行加密的。
3.RSA算法特點
不需要進行密鑰傳遞，提高了安全性
可以進行數字簽名認證
加密解密效率不高，一般只適用于處理小量數據（如：密鑰）
容易遭受小指數攻擊
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