Presente nel catalogo dei servizi SaaS
What is it and why use Lambda Service.
(and how you can try it for free)
Lambda Service allows you to create digitally signed PDF documents, which maintain their legal
validity even in paper format (print).
CHE COSA È LA BLOCKCHAIN?
Blockchain è un protocollo di pubblicazione decentralizzato per la
costruzione di sistemi di registrazione dati, immutabili e verificabili
in modo indipendente.
Consente di memorizzare in modo sicuro prove digitali, a
dimostrazione di provenienza e integrità di dati.
GT50 ha selezionato tra le blockchain, FACTOM (www.factom.com)
ed è divenuta un nodo di questa rete.
Tramite l’utilizzo di questa blockchain, la piattaforma Lambda ha la
capacità di provare con data certa l’esistenza dei singoli file
memorizzati in Lambda Store.
The legal validity of the paper document derives from the presence of a special secure QRCode
inserted in the PDF signature area.
The content of this QRCode (Lambda Seal) guarantees an inviolable and secure connection between
the digitally signed document and the paper copy of the document.
(Here a presentation to Lambda Service)
Lambda Seal does not contain a simple link to a document, but a secure data structure,
containing the decryption key of the document and a series of other information necessary
for its acquisition. Through Lambda Seal it will always be possible to obtain in real
time the original signed document (PAdES): nobody will be able to modify or replace your
documents, even when printed.
The Lambda platform has an online storage system (Lambda Store) of signed and encrypted documents
this approach is secure and fully compliant with GDPR.
The connection is manageable by the owners of the documents: the Lambda platform allows the
owners of the documents to suspend or revoke the release of the documents and to add an
information note on their status.
As an additional option, documents managed by Lambda Service are referenced in the
FACTOM blockchain. This action notifies the existence
of the document when it is signed and inserted in the Lambda platform
The graphic stamp is customizable at will and can contain your logo or the equivalent of your rubber stamp.
Who needs Lambda Service?
Lambda Service can be used both by Companies/Businesses in a centralized way through the λPes Appliance
and automatic digital signature, and by Professionals and small Businesses through a free application
for Windows or OSX environments, managing the signature operations with your normal digital signature.
Where are my files stored and why are they safe?
To complement Lambda Service, GT50 offers the Lambda
Store(*) file hosting.
The verification of the integrity and use of the data contained in the Lambda Seal is done
through the use of Universal QReader™ a smartphone/tablet App, freely downloadable from
PlayStore(Android) and AppStore(IOS). .
If read by a different application, Lambda Seal can inform the user of the need to use
Universal QReader™ by providing a link to the store to download the App.
The Lambda Store keeps your documents online, encrypted with AES256,
the strongest standard encryption algorithm available today.
GT50 doesn't have the decryption keys, so it can't access the content of
these files, it can only store them; for this reason we talk about
The data is always stored in encrypted form and only those who already
have the document in paper form have - through the QRCode present in the
graphic area of the signature - the decryption key of the single file.
This mechanism definitely protects the files stored on Lambda Store: even in
case of violation of these servers, no one will be able to access the
content of your files.
This approach is GDPR compliance.
Who designed and built Lambda Service?
We have been dealing with security for more than twenty years; in 2001 we invented the concept of
Digital Stamp and Electronic Marking, becoming the national market leader.
Like the other security products we designed, the Lambda Service platform follows the security
standards and implements only standard encryption algorithms.
With data security as its first objective, the platform has been designed in a simple way, just as
its implementation is simple and - thanks to the standard encryption and digital signature algorithms
used - allows the creation of documents that are inviolable but easily usable by those who are authorized.
Try Lambda Service
Lambda Service can be tested free of charge for a period of 30 (thirty)
days using our Windows-based
(here the user manual)
LambdaSign allows you to sign one or more PDF documents and to customize
the graphic area of the signature with your own logo or image of a rubber
stamp, possibly enriched with information about the signer, taken from the
digital signature certificate.
During the test period, the Customer will be able to verify all the Platform's
functionalities; afterwards he will be able to decide whether to transform this
test period into a license, completing the registration process and paying the
annual subscription to the service, which for each user is €99.00.
The subscription allows you to manage 500 documents/year and includes a 200MB
document space; with this license the documents cannot exceed 4MB in size.
For those who need to manage more documents or more available space or if they
have to work on files of particular size, there is the LambdaSignPro version.
Go to the support page,
select "λSignPro" as the topic and send us your requests.
Register in the demo area of the GT50 Services portal.
After registration you will receive an email to confirm your registration and the
link to download the LambdaSign installation software.
Alternatively, you can download LambdaSign directly from
here and register in
Integration with Corporate Information Systems
For more information about Lambda Service and its integration in the company ICT
environment, go to http://www.gt50.org/support.php,
select "λService" as the topic and send us your requests.
(*) Lambda Store is a facility already included in Lambda Service, designed
primarily for Professionals or SMEs; Lambda Service can easily use a content
provider other than Lambda Store, according to the will of the Customer.