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Generating Certificate Request with OpenSSL

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Endi S. Dewata edited this page Apr 14, 2021 · 5 revisions

To generate a certificate request with a new key:

$ openssl req \
    -new \
    -newkey rsa:2048 \
    -nodes \
    -keyout testuser.key \
    -subj "/UID=testuser/DC=example/DC=com" \
    -out testuser.csr

To generate a certificate request with an existing key:

$ openssl req \
    -new \
    -key testuser.key \
    -nodes \
    -subj "/UID=testuser/DC=example/DC=com" \
    -out testuser.csr
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