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Modernize certificate generation

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- Use 2048 bit keys (required for modern OpenSSL)
- Use SHA256 instead of SHA1 (required for modern OpenSSL)
- Add a SubjectAltName to be able to trigger certain edge-cases
- Add all.sh to conveniently re-generate certificates
This commit is contained in:
Jonas Schäfer 2018-11-19 15:56:42 +01:00
parent 550777a9d6
commit 8bcabff0c1
9 changed files with 22 additions and 15 deletions
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7
samples/certs/all.sh Normal file
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@ -0,0 +1,7 @@
#!/bin/bash
./rootA.sh
./rootB.sh
./clientA.sh
./clientB.sh
./serverA.sh
./serverB.sh

4
samples/certs/clientA.sh
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@ -1,9 +1,9 @@
#!/bin/sh
openssl req -newkey rsa:1024 -sha1 -keyout clientAkey.pem -out clientAreq.pem \
openssl req -newkey rsa:2048 -sha256 -keyout clientAkey.pem -out clientAreq.pem \
-nodes -config ./clientA.cnf -days 365 -batch
openssl x509 -req -in clientAreq.pem -sha1 -extfile ./clientA.cnf \
openssl x509 -req -in clientAreq.pem -sha256 -extfile ./clientA.cnf \
-extensions usr_cert -CA rootA.pem -CAkey rootAkey.pem -CAcreateserial \
-out clientAcert.pem -days 365

4
samples/certs/clientB.sh
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@ -1,9 +1,9 @@
#!/bin/sh
openssl req -newkey rsa:1024 -sha1 -keyout clientBkey.pem -out clientBreq.pem \
openssl req -newkey rsa:2048 -sha256 -keyout clientBkey.pem -out clientBreq.pem \
-nodes -config ./clientB.cnf -days 365 -batch
openssl x509 -req -in clientBreq.pem -sha1 -extfile ./clientB.cnf \
openssl x509 -req -in clientBreq.pem -sha256 -extfile ./clientB.cnf \
-extensions usr_cert -CA rootB.pem -CAkey rootBkey.pem -CAcreateserial \
-out clientBcert.pem -days 365

4
samples/certs/rootA.sh
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@ -1,7 +1,7 @@
#!/bin/sh
openssl req -newkey rsa:1024 -sha1 -keyout rootAkey.pem -out rootAreq.pem -nodes -config ./rootA.cnf -days 365 -batch
openssl req -newkey rsa:2048 -sha256 -keyout rootAkey.pem -out rootAreq.pem -nodes -config ./rootA.cnf -days 365 -batch
openssl x509 -req -in rootAreq.pem -sha1 -extfile ./rootA.cnf -extensions v3_ca -signkey rootAkey.pem -out rootA.pem -days 365
openssl x509 -req -in rootAreq.pem -sha256 -extfile ./rootA.cnf -extensions v3_ca -signkey rootAkey.pem -out rootA.pem -days 365
openssl x509 -subject -issuer -noout -in rootA.pem

4
samples/certs/rootB.sh
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@ -1,7 +1,7 @@
#!/bin/sh
openssl req -newkey rsa:1024 -sha1 -keyout rootBkey.pem -out rootBreq.pem -nodes -config ./rootB.cnf -days 365 -batch
openssl req -newkey rsa:2048 -sha256 -keyout rootBkey.pem -out rootBreq.pem -nodes -config ./rootB.cnf -days 365 -batch
openssl x509 -req -in rootBreq.pem -sha1 -extfile ./rootB.cnf -extensions v3_ca -signkey rootBkey.pem -out rootB.pem -days 365
openssl x509 -req -in rootBreq.pem -sha256 -extfile ./rootB.cnf -extensions v3_ca -signkey rootBkey.pem -out rootB.pem -days 365
openssl x509 -subject -issuer -noout -in rootB.pem

4
samples/certs/serverA.cnf
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@ -118,7 +118,7 @@ x509_extensions = v3_ca # The extensions to add to the self signed cert
# so use this option with caution!
string_mask = nombstr
# req_extensions = v3_req # The extensions to add to a certificate request
req_extensions = req_ext # The extensions to add to a certificate request
[ req_distinguished_name ]
countryName = Country Name (2 letter code)
@ -198,7 +198,7 @@ authorityKeyIdentifier=keyid,issuer
# subjectAltName=email:copy
# An alternative to produce certificates that aren't
# deprecated according to PKIX.
# subjectAltName=email:move
subjectAltName=DNS:foo.bar.example
# Copy subject details
# issuerAltName=issuer:copy

4
samples/certs/serverA.sh
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@ -1,9 +1,9 @@
#!/bin/sh
openssl req -newkey rsa:1024 -keyout serverAkey.pem -out serverAreq.pem \
openssl req -newkey rsa:2048 -keyout serverAkey.pem -out serverAreq.pem \
-config ./serverA.cnf -nodes -days 365 -batch
openssl x509 -req -in serverAreq.pem -sha1 -extfile ./serverA.cnf \
openssl x509 -req -in serverAreq.pem -sha256 -extfile ./serverA.cnf \
-extensions usr_cert -CA rootA.pem -CAkey rootAkey.pem -CAcreateserial \
-out serverAcert.pem -days 365

2
samples/certs/serverB.cnf
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@ -195,7 +195,7 @@ authorityKeyIdentifier=keyid,issuer
# This stuff is for subjectAltName and issuerAltname.
# Import the email address.
# subjectAltName=email:copy
subjectAltName=DNS:fnord.bar.example
# An alternative to produce certificates that aren't
# deprecated according to PKIX.
# subjectAltName=email:move

4
samples/certs/serverB.sh
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@ -1,9 +1,9 @@
#!/bin/sh
openssl req -newkey rsa:1024 -keyout serverBkey.pem -out serverBreq.pem \
openssl req -newkey rsa:2048 -keyout serverBkey.pem -out serverBreq.pem \
-config ./serverB.cnf -nodes -days 365 -batch
openssl x509 -req -in serverBreq.pem -sha1 -extfile ./serverB.cnf \
openssl x509 -req -in serverBreq.pem -sha256 -extfile ./serverB.cnf \
-extensions usr_cert -CA rootB.pem -CAkey rootBkey.pem -CAcreateserial \
-out serverBcert.pem -days 365