Convert id_rsa to pem file

convert id_rsa to pem

openssl rsa -in ~/.ssh/id_rsa -outform pem > id_rsa.pem
chmod 600 id_rsa.pem

I had the same problem and fixed by adding -m PEM when generate keys.

So the gen key command look like:

ssh-keygen -t rsa -b 4096 -m PEM

Then you can get pem from your rsa private key.

openssl rsa -in id_rsa -outform pem > id_rsa.pem

@kollaesch doesn't seem to be the case. I still got:

@macbook:~/work$ openssl dsa -in id_dsa -outform pem
read DSA key
unable to load Private Key
140736256754632:error:0906D06C:PEM routines:PEM_read_bio:no start line:pem_lib.c:697:Expecting: ANY PRIVATE KEY
unable to load Key

Thanks, this worked for me as well.

This worked!!! But as others said, your private key is overwritten.

For private keys in OpenSSH format that use passphrase, you can convert them to PEM format using

ssh-keygen -f my-rsa-key -m pem -p

Note: when it was missing -p argument I got Expecting: ANY PRIVATE KEY error.

@coolaj86 tried to run on windows, got errors (rsa -> jwt json)

C:\Users\dz\.ssh> ssh-to-jwk id_rsa
C:\Users\dz\AppData\Roaming\npm\node_modules\ssh-to-jwk\lib\ssh-parser.js:135
    len = dv.getUint32(index, false);
             ^

RangeError: Offset is outside the bounds of the DataView
    at DataView.getUint32 (<anonymous>)
    at Object.SSH.parseElements (C:\Users\dz\AppData\Roaming\npm\node_modules\ssh-to-jwk\lib\ssh-parser.js:135:14)
    at Object.SSH.parse (C:\Users\dz\AppData\Roaming\npm\node_modules\ssh-to-jwk\lib\ssh-parser.js:23:24)
    at Object.<anonymous> (C:\Users\dz\AppData\Roaming\npm\node_modules\ssh-to-jwk\bin\ssh-to-jwk.js:26:16)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
    at Module.load (internal/modules/cjs/loader.js:928:32)
    at Function.Module._load (internal/modules/cjs/loader.js:769:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:72:12)
    at internal/main/run_main_module.js:17:47

I had the same problem and fixed by adding -m PEM when generate keys.

So the gen key command look like:

ssh-keygen -t rsa -b 4096 -m PEM

Then you can get pem from your rsa private key.

openssl rsa -in id_rsa -outform pem > id_rsa.pem

@kollaesch doesn't seem to be the case. I still got:

@macbook:~/work$ openssl dsa -in id_dsa -outform pem
read DSA key
unable to load Private Key
140736256754632:error:0906D06C:PEM routines:PEM_read_bio:no start line:pem_lib.c:697:Expecting: ANY PRIVATE KEY
unable to load Key

Worked to me too. Thanks man !

Just run this

ssh-keygen -f ~/.ssh/id_rsa.pub -e -m pem > ~/.ssh/id_rsa.pub.pem

Some of the examples above contain insecure use of chmod.
In general to create a file securely, always set the umask first! e.g.

$ rm -f examplefile ; ( umask 0077 && echo "" > examplefile ) ; ls -l examplefile
-rw------- 1 tim tim 1 Feb 26 13:55 examplefile
$  rm -f examplefile ; ( umask 0377 && echo "" > examplefile ) ; ls -l examplefile
-r-------- 1 tim tim 1 Feb 26 13:55 examplefile

...if you don't do that, then your file creation is subject to a race condition, and can be maliciously read between you creating it, and chmodding it...

Huh, TIL! Thanks @linuxtim!