mirror of https://github.com/CrimsonTome/tldr.git
36 lines
848 B
Markdown
36 lines
848 B
Markdown
# openssl
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> OpenSSL is a cryptography toolkit.
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- Check an SSL connection:
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`openssl s_client -connect {{domain}}:{{port}}`
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- Generate new private key and CSR:
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`openssl req -out {{path/to/CSR.csr}} -new -newkey rsa:2048 -nodes -keyout {{path/to/pivate.key}}`
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- Read contents of a certificate:
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`openssl x509 -text -noout -in {{path/to/certificate.crt}}`
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- Read contents of a private key:
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`openssl rsa -check -in {{path/to/pivate.key}}`
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- Verify a CSR file:
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`openssl req -text -noout -verify -in {{path/to/CSR.csr}}`
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- Check MD5 hash of a certificate:
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`openssl x509 -noout -modulus -in {{path/to/certificate.crt}} | openssl md5`
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- Check MD5 hash of a private key:
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`openssl rsa -noout -modulus -in {{path/to/pivate.key}} | openssl md5`
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- Check MD5 hash of a CSR file:
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`openssl req -noout -modulus -in {{path/to/CSR.csr}} | openssl md5`
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