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SIA · Sistemas Informáticos Abiertos S.A.U.

Qualified Trust Service Provider

Qualified services for electronic signature and electronic seal, time-stamping, and qualified electronic registered delivery. Direct access to documentation, certification hierarchies and validation endpoints (CRL/ARL/OCSP).

Qualified services

Qualified certificate for electronic signature

Qualified certificate for electronic signature

Qualified certificate for electronic signature, in accordance with Regulation (EU) No 910/2014 (eIDAS), enabling the creation of qualified electronic signatures with full legal effect and an unambiguous link to the signatory.

Issuance of qualified certificates (Medium level)
  • Citizen
  • Public Employee
  • Natural Person linked to a Company
  • Natural Person Representative of a Legal Person
  • Natural Person Representative of an Entity without Legal Personality
Issuance of qualified certificates (High level)
  • Citizen
  • Public Employee
  • Natural Person linked to a Company
  • Natural Person Representative of a Legal Person
  • Natural Person Representative of an Entity without Legal Personality

Qualified certificate for electronic seal

Qualified certificate for electronic seal

Qualified certificate for electronic seal, in accordance with Regulation (EU) No 910/2014 (eIDAS), which enables the origin and integrity of data issued by a legal person to be ensured, with full legal effect.

Issuance of qualified seal certificates (Medium level)
  • Electronic Seal
  • Electronic Seal (Public Administrations)
  • Electronic Seal (PSD2)
  • e-Government portal
Issuance of qualified seal certificates (High level)
  • Electronic Seal
  • Electronic Seal (Public Administrations)
  • Electronic Seal (PSD2)
  • e-Government portal

Qualified time stamp

Qualified time stamp

Qualified time-stamping service, in accordance with Regulation (EU) No 910/2014 (eIDAS), providing reliable evidence that data existed at a given time, using a trustworthy and traceable time source.

Issuance of qualified electronic time stamps
  • time-stamping (TSA)

Electronic registered delivery

Qualified electronic registered delivery service

Qualified electronic registered delivery service, in accordance with Regulation (EU) No 910/2014 (eIDAS), ensuring secure transmission of data, identification of sender and recipient, and generation of electronic evidence with legal effect.

Documentation

Certification Authority hierarchies

Certification Authorities and published cryptographic fingerprints for verification.

SIA ROOT

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SHA256
4c8cb897fed5ffceb8796cdfef70c1d34044f2c5085e85de7ce9c86798a29e2c
SHA512
9b7502485f12e41f0da43ade533e7133b941a5fc2793079d57e0f944b4a76b600c347a2685c0b2581296a9dbc05da6c87a89c005929683882d047cdffea24db8
SIA SUB01

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SHA256
68690054b917c0e4a96092c4b359f7418098b64ef149a70b785a389c45515d10
SHA512
2d45cca297f615f996fb15aac1624faac3fdb0d135270131cf69683630659324de61d922785829c28caaa81be18093adac33fe4cd055491aa80654f3a52c4ed0
SIA ROOT CA 2025

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SHA256
d14aee92f8065dd457894eb73f366e450c6cc84a8fda856a40dc885d67daa083
SHA512
651154e7c0a15cf229d2ced09282baced5cd7970860176ac3ed385e27c8e3d4c8b3907982338c0ff0e3f8c9588f680daed7ec1552b3e30b45c1a90cca311e8af
SIA SUB01 2025

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SHA256
59b49880637b4db199077cf0e3881b354356406bca191471e6062740d8d517a2
SHA512
d3d98f19a802285649c0170f3bbe9fe4839d47d267ec6cdea6b874754460e91a137da38e9c70d492ecbed4108984f3b42913e4f1df1a0111f51b0030812dcc58

Other authorities (TSA)

TSAQC 2022

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VALIDEZ
No antes de .....: Nov 24 09:44:49 2022 GMT
Ni después de ...: Ene 29 10:26:43 2030 GMT
SHA256
e8f75ad5ce0897d95afdcaac28758211687ea40d3fced01c806aca085e643d1e
SHA512
333c7d281ed6c84813f00883f2175411e35035c4c2091285c392698aa509d114d50ce656247c6d51950dcba3b80c454a0b77639fd55984aa3abdc381ccff881b
TSAQC 2020

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VALIDEZ
No antes de .....: Sep 04 11:54:01 2020 GMT
Ni después de ...: Sep 04 12:24:01 2023 GMT
SHA256
55a4109a4eaa63b6461fdbb11e1c0bada6e18cdadb454fe563a7d36f18bf571c
SHA512
a9350117806497d7de178bfebe28df08a86d1ba56a13512d9ed15c0d8f148d30ed2349f5724f411ad37084f528f683a6c86e53936d3f8c1d927ece4e1f653d49
TSAQC 2017

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VALIDEZ
No antes de .....: Dic 01 11:42:49 2017 GMT
Ni después de ...: Dic 01 12:12:49 2020 GMT
SHA256
946bbf535a21d9d732e3e570b62e793b3a092221357ce1b2fa61c71695802d38
SHA512
587b964d33f6914994c06e64f8fb9c2e8b5a9e797c52972298df48c378d21ee707ff05a4c2c92c9439c7d485efb77663a31d1c93ec795ce2d9c1760a8e4ccf21

Validation

Direct links to CRL/ARL and certificates for validation/OCSP.

CRL

Certificate Revocation List

CRL SIA SUB01 Download
CRL SIA SUB01 2025 Descargar

ARL

Authority Revocation List

ARL SIA ROOT Download
ARL SIA ROOT CA 2025 Descargar

OCSP / Signers

OCSP signer certificates

HIERARCHY SIA ROOT Download
HIERARCHY SIA CA 2025 Download

Revocation

Revocation request

Certificate revocation requests must be sent by email to psc@sia.es, stating the holder’s DNI or NIE and the reason for the request.

Optionally, and in order to facilitate processing, the certificate serial number may be included.

Trusted List (EU)

Check the official register on the trusted list.

Trustmark

External link to the European Union Trusted List