Create a dedicated timestamper which use the openssl cli and custom certificates #2

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julienfastre merged 6 commits from test-ts-sign into main 2024-10-11 14:19:52 +00:00
3 changed files with 89 additions and 0 deletions
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from sign import SignOrchestrator
"""
This is a script to sign a file with the dummy assets
It is created mainly for testing purpose
"""
orchestrator = SignOrchestrator('/run/user/1000/ca/cachet.p12',
'/home/julien/dev/chill/sign-pdf-worker/ts-authority/vendee-tsa.conf',
'xxxxxxxxxxxxxxxxxxx',
'/run/user/1000/ca/tsa-chain.pem',
pkcs12_password=b"xxxxxxxxxxxxxxxx")
with open('./assets/test.pdf', 'rb') as input:
signed_content = orchestrator.sign(reason="first signer", signature_index=0,
input_content=input.read(), box_place=(300, 600, 500, 660), on_page=0,
signer_text="Mme Caroline Diallo")
with open('./assets/test_signed_0.pdf', 'wb') as output:
output.write(signed_content.read())
with open('./assets/test_signed_0.pdf', 'rb') as input:
signed_content = orchestrator.sign(reason="second signer", signature_index=1,
input_content=input.read(), box_place=(100, 600, 300, 660), on_page=0,
signer_text="M. Bah Mamadou")
with open('./assets/test_signed_1.pdf', 'wb') as output:
output.write(signed_content.read())

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@ -151,3 +151,17 @@ The OK response ensures that the original signed timestamp is correctly authoriz
openssl ts -verify -data /etc/hosts -in /tmp/response.tsr -CAfile ca/root-ca.pem -untrusted ca/tsa.pem openssl ts -verify -data /etc/hosts -in /tmp/response.tsr -CAfile ca/root-ca.pem -untrusted ca/tsa.pem
``` ```
# Préparation pour Vendée
## Extraire les infos
```bash
openssl pkcs12 -info -in horodatage.p12 -legacy
```
Ca demandera un mot de passe pour déchiffrer, et un autre mot de passe pour chiffrer la clé qui apparaitra.
- on recopie la clé et on fait un copier-coller dans /run/user/1000/ca/private/tsa.key
- on recopie tous les certificats, on supprime les interligne, et on colle ça dans /run/user/1000/ca/tsa-chain.pem
- on recopie le premier certificat, pour céer /run/user/1000/ca/tsa.crt

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#
# rootca.conf
#
# See Ristic OpenSSL Cookbook URL above.
oid_section = new_oids
[ new_oids ]
tsa_policy1 = 1.2.3.4.1
tsa_policy2 = 1.2.3.4.5.6
tsa_policy3 = 1.2.3.4.5.7
[ tsa ]
default_tsa = tsa_config1
[ tsa_config1 ]
dir = /run/user/1000/ca # TSA root directory, same as root-ca
serial = $dir/tsa_serial # current serial number (mandatory)
signer_cert = $dir/tsa.crt # signing certificate (optional)
certs = $dir/tsa-chain.pem # certification chain (optional)
signer_key = $dir/private/tsa.key # tsa private key (optional)
default_policy = tsa_policy1
signer_digest = sha256 # digest to use for signing (optional)
other_policies = tsa_policy2,tsa_policy3 # other policies (optional)
digests = sha256,sha384,sha512 # acceptable digests (mandatory)
accuracy = secs:1,millisecs:500,microsecs:100 # accuracy optional
ordering = yes # is ordering defined? (optional, default: no)
tsa_name = yes # must tsa name be included in reply? (opt., default: no)
ess_cert_id_chain = yes # must ess cert id change be incl? (opt., default: no)
ess_cert_id_alg = sha256 # alg to compute cert. id (optional, default: sha1)
# added, was missing in the blog post
crypto_device = builtin
# The tsa_ext extension is
# used to create the tsa cert tsa.crt
[ tsa_ext ]
authorityKeyIdentifier = keyid:always
basicConstraints = critical,CA:false
extendedKeyUsage = critical,timeStamping
keyUsage = critical,nonRepudiation
subjectKeyIdentifier = hash