As a Certification Authority (CA), Yousign is accountable to expose technical documents to independent security experts.
These documents can be viewed by following these links (the documentation is mainly in French because Yousign is audited by French auditors):
Politique de certification de l'AC : YOUSIGN SAS - ROOT2 CA (1.0.2)
Checksum : sha256
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Politique de certification de l'AC : YOUSIGN SAS - SIGN2 CA (1.2.0)
Checksum: sha256
c371a8dc949ad2b3f0772ccf4fac46771322f1418a0795c6d095819398dc4d73
Politique d'horodatage (1.0.3)
Checksum : sha256
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Politique de certification de l'AC : YOUSIGN SAS - SIGN2 CA cachet serveur (1.0.1)
Checksum : sha256
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Politique de certification de l'AC : YOUSIGN SAS - QUALIFIED SIGNATURE CA (1.0)
Checksum: sha256
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Certificate policy sign CA: YOUSIGN SAS - QUALIFIED SEAL2 CA (1.2)
Checksum : sha256
1946eceffa4bebf1a0fef2db62913253323407972b7dcacac4b085430dcad3b2
Certificate of CA: YOUSIGN SAS - ROOT2 CA
Checksum: sha256
04d538df57f0fe6c24322c46578bc94d286d6e7fe6ca2754932b983da6008917
Certificate of CA : YOUSIGN SAS - SIGN2 CA
Checksum : sha256
9650adfae2495273b1d1bd681c13b8d3b7f0d2390a3ae97b74d75f35faa027fe
Checksum : sha256
b571369ab44fb8795d11756c6eed0e5c7dbb64d99f2e0fc81bfd6dd076aa3032
Checksum : sha256
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Certificate of CA: YOUSIGN SAS - QUALIFIED SIGNATURE CA
Checksum : sha256
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Certificate of CA : YOUSIGN SAS - QUALIFIED SEAL2 CA
Checksum: sha256
be2c8c2a902b520ed6bae14825861a3a6d590d5222abbd67e29e044783143218
Terms and conditions of use YOUSIGN SAS - SIGN2 CA (1.0)
Tips: Used for advanced signature feature
Checksum: sha256
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Conditions Générales d'Utilisation Certificat d'horodatage (1.1.2)
Checksum : sha256
2aa12c0a57ad973df8268375d0a7cfe4b6f0b8dd5abe1095ab4ac8a9cec33757
Conditions Générales d'Utilisation de l'AC : YOUSIGN SAS - QUALIFIED SIGNATURE CA (1.0.1)
Checksum : sha256
59f352eb87d22bf261d0006cbcd803f956eb66ab867be1a8f42855fdcde5b301
Conditions Générales d'Utilisation de l'AC : YOUSIGN SAS - QUALIFIED SEAL2 CA (1.0.1)
Checksum : sha256
196ef69a3d3d5b2cac30ab68159ce22d3f1c343ef0eb6d3b9b3e36e25e385a9f