mirror of
https://github.com/denisidoro/navi.git
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82 lines
2.9 KiB
Plaintext
82 lines
2.9 KiB
Plaintext
% openssl, certificate, encryption
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## General OpenSSL Commands
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# Create a new signing request and key
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openssl req -new -newkey rsa:<RSA_LENGTH> -nodes -out <OUTPUT_CSR> -keyout <OUTPUT_KEY>
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# Create a new self-signed certificate
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openssl req -x509 -sha256 -nodes -days <VALIDITY> -newkey rsa:<RSA_LENGTH> -out <OUTPUT_CRT> -keyout <OUTPUT_KEY>
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# Create a signing request from existing key
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openssl req -out <OUTPUT_CSR> -key <INPUT_KEY> -new
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# Create a signing request from existing certificate and key
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openssl x509 -x509toreq -out <OUTPUT_CSR> -in <INPUT_CRT> -signkey <INPUT_KEY>
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# Remove a passphrase from a private key
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openssl rsa -in <INPUT_KEY> -out <OUTPUT_PLAINTEXT_KEY>
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## Converting between the different encoding
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# Convert a DER encoded file to a PEM encoded file
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openssl x509 -inform der -in <INPUT_CRT> -out <OUTPUT_PEM>
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# Convert a PEM encoded file to a DER encoded file
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openssl x509 -outform der -in <INPUT_PEM> -out <OUTPUT_CRT>
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# Convert a PKCS12 encoded file containing a private key and certificates to PEM
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openssl pkcs12 -in <INPUT_PKCS12> -out <OUTPUT_PEM> -nodes
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# Extract the private key from a PKCS12 encoded file
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openssl pkcs12 -in <INPUT_PKCS12> -out <OUTPUT_PEM> -nodes -nocerts
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# Extract the certificate from a PKCS12 encoded file
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openssl pkcs12 -in <INPUT_PKCS12> -out <OUTPUT_PEM> -nodes -nokeys
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# Convert a PEM certificate file and a private key to PKCS12 encoded file
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openssl pkcs12 -export -out <OUTPUT_PKCS12> -inkey <INPUT_KEY> -in <INPUT_CRT> -certfile <INPUT_CRT>
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## Validating certificates and keys using OpenSSL
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# Validate a certificate signing request
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openssl req -text -noout -verify -in <OUTPUT_CSR>
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# Validate a private key
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openssl rsa -in <INPUT_KEY> -check
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# Validate a certificate
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openssl x509 -in <INPUT_CRT> -text -noout
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# Validate a PKCS12 file (.pfx or .p12)
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openssl pkcs12 -info -in <INPUT_PKCS12>
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## Debugging using OpenSSL
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# Compare the MD5 hash of a certificate
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openssl x509 -noout -modulus -in <INPUT_CRT> | openssl md5
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# Compare the MD5 hash of a private key
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openssl rsa -noout -modulus -in <INPUT_KEY> | openssl md5
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# Compare the MD5 hash of a certificate signing request
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openssl req -noout -modulus -in <INPUT_CSR> | openssl md5
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# Display the server certificate chain
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openssl s_client -connect <URL>:<PORT>
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# Sensible/common default alternatives
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$ VALIDITY: printf "DAYS\tCOMMENT\n1\ta day\n30\ta month\n365\ta year\n730\ttwo years" --- --column 1 --headers 1
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$ RSA_LENGTH: printf "KEY LENGTH\tCOMMENT\n2048\t\tDefault\n4096\t\tBetter\n8192\t\tSlow?" --- --column 1 --headers 1
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# Attempt to find files with the appropriate endings, default to everything.
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$ INPUT_PKCS12: ls -a | grep -e "\(.pfx\|.p12\)" || ls -a
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$ INPUT_CSR: ls -a | grep -e "\(.csr\)" || ls -a
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$ INPUT_KEY: ls -a | grep -e "\(.key\|.pem\)" || ls -a
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$ INPUT_CRT: ls -a | grep -e "\(.crt\|.cer\|.der\)" || ls -a
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$ INPUT_PEM: ls -a | grep -e "\(.pem\)" || ls -a
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