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Keys & Signing

OpenSSL
Create key and csr
openssl req -newkey rsa:4096 -keyout <user key> -out <user csr> -nodes -days 365 -subj "/CN=<name>"`
Sign csr with ca
openssl x509 -req -in <user csr> -CA <ca cert> -CAkey <ca key> -out <signed user cert> -set_serial 01 -days 365
Convert to pkcs12 for use in browsers as client certificate
openssl pkcs12 -export -clcerts -in <signed user cert> -inkey <user key> -out <user>.p12
Check key infos
openssl rsa -pubin -inform PEM -text -noout < public.key
Decrypt file with key
openssl rsautl -inkey key.priv -decrypt -in file.enc
Putty
Convert putty ppk to openssh rsa
puttygen private.ppk -O private-openssh -o private.ssh

Misc

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Language & Framwork Specifics

Last modified 9mo ago