Signature not confirmed for these files
What it means
RO e-Factura's signature check answers with this message when the invoice XML and the signature file could not be validated together, so the invoice cannot be treated as an original produced by RO e-Factura.
The usual cause
The check tests whether the signature is authentic and belongs to the invoice XML. Check that both files come from the same ZIP downloaded from RO e-Factura and that the invoice XML has not been changed since.
How to fix it
Run the check again with the invoice XML and the signature file exactly as they are in the ZIP. If it still fails, download the ZIP again from RO e-Factura.
The message as published
ANAF sends this message without a code. The heading above is Klarbon's own description, not ANAF's wording; the message itself is in the official document linked below.
Read the official document . Source: XML Signature Validation API: API pentru validarea semnăturilor la facturile electronice, version 1.0 (2024-09-03), published by Ministerul Finanțelor, read on 8 November 2026.
Klarbon explains each code in its own words; the official wording is in the document linked above.