如何获取pem文件的公钥? [英] How do I get the public key of a pem file?

问题描述

我有一个包含我的私钥的 .pem 文件.但是，BitBucket 部署密钥具有以下格式:

I have a .pem file containing my private key. However, a BitBucket deployment key has this format:

SSH-RSA AAAAB3NzaC3yc2EAAAADAQABAAABAQDfZxX2LXOJlo5MP2tLP4fmQyjIAcATwATFKwM6K3mtT7 + LKx1jk6YlFlEcj2CFxJHHTy6LCdDqoVzL3iNcD + mDl7NbcNEHytZNJnFQ5lAHPxDVa9ZbLnmP1OlfUvsQS + jAt7yMSwd8gZ6McOJfp9ZUn + r5LLpjYkF + AMQFPsf + 6lhSJaOjOTbsA39OJwlnnSO6HF3W2Om + 8Bgdpa/E4En5RZTBwFCAvLaaXY3XgN76xCR24TwTWFicBHWeLdADGFXB7OBOv4y805fNGbNKOl3Yb21mG89aUQlYjobeLqImyIrrEhX36hEdMW/t6zZK/1I0QC//ULA + GjJoeuPW4WY3ubuntu@Box

ssh-rsa AAAAB3NzaC3yc2EAAAADAQABAAABAQDfZxX2LXOJlo5MP2tLP4fmQyjIAcATwATFKwM6K3mtT7+LKx1jk6YlFlEcj2CFxJHHTy6LCdDqoVzL3iNcD+mDl7NbcNEHytZNJnFQ5lAHPxDVa9ZbLnmP1OlfUvsQS+jAt7yMSwd8gZ6McOJfp9ZUn+r5LLpjYkF+AMQFPsf+6lhSJaOjOTbsA39OJwlnnSO6HF3W2Om+8Bgdpa/E4En5RZTBwFCAvLaaXY3XgN76xCR24TwTWFicBHWeLdADGFXB7OBOv4y805fNGbNKOl3Yb21mG89aUQlYjobeLqImyIrrEhX36hEdMW/t6zZK/1I0QC//uLa+GjJoeuPW4WY3 ubuntu@Box

通常使用:

cat ~/.ssh/id_rsa.pub |pbcopy

如何从 .pem 文件中以这种格式提取我的公钥?

How do I extract my public key, in this format, from a .pem file?

推荐答案

在 Linux 上:

ssh-keygen -f private.pem -y > public.pub

在 macOS 上:

ssh-keygen -f Private.pem -y | pbcopy

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请注意，如果您对 .pem 文件的权限含糊不清，则 ssh-keygen 将生成一个空的 .pub 文件.

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Note that if your permissions are vague on the .pem file, then ssh-keygen will generate an empty .pub file.

您通常可以通过以下方式解决此问题:

You can usually fix this with:

chmod 400 private.pem 

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