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SSH keyを4096bitで作成する

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SSH keyを4096bitで作成するには?

コマンド

-bオプションで指定

ssh-keygen -t rsa -b 4096

bitが違うとどうなるか?

4096bitになると2048bitの2倍の鍵の種類ができるというわけではない。
1bit増えるごとに2倍になるので
2を2048回かけた分だけ鍵の種類が増える。
よってその分だけ解読しづらくなる。

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