Convert pem key to ssh-rsa format

by

No need to compile stuff. You can do the same with ssh-keygen:

ssh-keygen -f pub1key.pub -i

will read the public key in openssl format from pub1key.pub and output it in OpenSSH format.

Note: In some cases you will need to specify the input format:

ssh-keygen -f pub1key.pub -i -mPKCS8

From the ssh-keygen docs (From man ssh-keygen):

-m key_format Specify a key format for the -i (import) or -e (export) conversion options. The supported key formats are: “RFC4716” (RFC 4716/SSH2 public or private key), “PKCS8” (PEM PKCS8 public key) or “PEM” (PEM public key). The default conversion format is “RFC4716”.

More Related Contents:

  1. Cross Compile OpenSSH for ARM
  2. How can I transform between the two styles of public key format, one “BEGIN RSA PUBLIC KEY”, the other is “BEGIN PUBLIC KEY”
  3. Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”
  4. Converting pfx to pem using openssl
  5. CMake not able to find OpenSSL library
  6. Use RSA private key to generate public key? [closed]
  7. Converting PKCS#12 certificate into PEM using OpenSSL
  8. Difference between openSSL rsautl and dgst
  9. Verify a certificate chain using openssl verify
  10. Convert PEM traditional private key to PKCS8 private key
  11. Using OpenSSL what does “unable to write ‘random state'” mean?
  12. Multiple OpenSSL RSA signing methods produce different results
  13. How to extract public key using OpenSSL?
  14. OpenSSL Verify return code: 20 (unable to get local issuer certificate)
  15. How do I manage the error “OpenSSL v1.1.1 ssl_choose_client_version unsupported protocol”? [closed]
  16. Why is Apple Deprecating OpenSSL in MacOS 10.7 (Lion)? [closed]
  17. RSA: Get exponent and modulus given a public key
  18. Correct location of openssl.cnf file
  19. Programmatically Create X509 Certificate using OpenSSL
  20. How to generate an openSSL key using a passphrase from the command line?
  21. How to save public key from a certificate in .pem format
  22. How to create public and private key with openssl?
  23. How to convert an ECDSA key to PEM format
  24. Unable to load Private Key. (PEM routines:PEM_read_bio:no start line:pem_lib.c:648:Expecting: ANY PRIVATE KEY) [closed]
  25. Creating a .p12 file
  26. How do I get Visual Studio Code to trust our self-signed proxy certificate?
  27. When was TLS 1.2 support added to OpenSSL?
  28. How to make browser trust localhost SSL certificate? [closed]
  29. Build Multiarch OpenSSL on OS X
  30. How do I remove the passphrase for the SSH key without having to create a new key?

Leave a Comment