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ygotthilf/jwtRS256.sh

Last active March 23, 2026 01:32
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How to generate JWT RS256 key
Raw
jwtRS256.sh
ssh-keygen -t rsa -b 4096 -m PEM -f jwtRS256.key
# Don't add passphrase
openssl rsa -in jwtRS256.key -pubout -outform PEM -out jwtRS256.key.pub
cat jwtRS256.key
cat jwtRS256.key.pub
@NNHungLong
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NNHungLong commented Jul 27, 2023

Thanks

@AColocho
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AColocho commented Aug 31, 2023

Now, it doesn't work because newer version of ssh-keygen no longer uses PEM format as default key format. It have changed to RFC4716 for default key format. Thus, I have to set PEM format explicitly :

ssh-keygen -t rsa -b 4096 -m PEM -f jwtRS256.key

This will work 👍

In case anyone is getting an error from openssl, try this.

@solairerove
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solairerove commented Sep 17, 2023

many thanks

@iamanikeev
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iamanikeev commented Sep 25, 2023

thank you good sir!

@muhammadfazeel1
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muhammadfazeel1 commented Nov 19, 2023

Thanks :)

@honne23
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honne23 commented Jan 31, 2024

nice

@mthienpont
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mthienpont commented Jan 31, 2024

oh hell yeah

@farzadafi
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farzadafi commented Feb 3, 2024

concise and useful :)

@peterDitrih
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peterDitrih commented Feb 29, 2024

thx

@IHsuanLu
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IHsuanLu commented Mar 15, 2024

thanks!

@bmewj
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bmewj commented Mar 24, 2024

Thanks

@danwonghk01
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danwonghk01 commented Apr 11, 2024

Thanks!! Amazing!

@vlack-coder
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vlack-coder commented May 4, 2024

let me contribute to the thanks
Thanks

@DoobyDouglas
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DoobyDouglas commented May 8, 2024

awesome

@Rock070
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Rock070 commented Aug 18, 2024

Thanks!

@jamerlan
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jamerlan commented Aug 19, 2024

It was useful for me too! Thanks!

@caiquesantosss
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caiquesantosss commented Mar 26, 2025

Thanks!

@mtrbpr
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mtrbpr commented Jun 2, 2025

thanks

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