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akirattii/generate-keypair-pem-by-openssl.md

Created April 11, 2018 01:48
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Generate a private/public key pem file using `openssl`
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generate-keypair-pem-by-openssl.md

Generate a private/public key pem file

# First, create a file as random seed, written as you like:
$ echo "<input_many_charactors_for_random_seed>" > random.txt

# Generate a private key:
$ openssl genrsa -rand random.txt 2048 > private.pem

# Generate a public key from above private key:
$ openssl rsa -in ./private.pem -pubout -out public.pem

Now you got 2 pem files. One is private.pem as private key pem, another is public.pem as public.

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