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/ key_and_certificate_conversions.sh
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April 24, 2025 12:22
Different private/public key conversions GnuPG, OpenSSH and OpenSSL
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| # Source: http://www.sysmic.org/dotclear/index.php?post/2010/03/24/Convert-keys-betweens-GnuPG%2C-OpenSsh-and-OpenSSL | |
| # OpenSSH private keys are directly understable by OpenSSL. You can test for example: | |
| openssl rsa -in ~/.ssh/id_rsa -text | |
| openssl dsa -in ~/.ssh/id_dsa -text | |
| # So, you can directly use it to create a certification request: | |
| openssl req -new -key ~/.ssh/id_dsa -out myid.csr | |
| # You can also use your ssh key to create a sef-signed certificate: |