WO2015158425A1

WO2015158425A1 - Cloud secure print process

Info

Publication number: WO2015158425A1
Application number: PCT/EP2015/000780
Authority: WO
Inventors: Jan De Kesel; William LANGERON; Guillaume BLASSEL
Original assignee: Pwonjo Ltd
Priority date: 2014-04-15
Filing date: 2015-04-14
Publication date: 2015-10-22

Abstract

A cloud secure print process for printing an original print-job record available from a first computing device on one printer selected from a series of printers connected to a printing network or web, whereby the first computing device is provided with means adapted for being connected to the printing network, whereby each printer connected to the printer network or web is defined by a group of parameters and associated with at least one printing control computing device adapted to communicate via the printing network or web for receiving and sending data's, said at least one printing control computing device being not the first computing device.

Description

Cloud secure print process

The invention relates to a printing process for printing a print job record send to a. remote printer by the web.

It is well known to send print job record via the web to remote printers associated to a remote computing device.

A major problem of such remote printing is the confidentiality, documents could be hacked when sent via the web and/or be stolen at the remote printers. The risk of printed documents to be stolen is already very high, as the printing is often kept on hold, waiting to be released hours or days before the user comes back for searching the printed document. Another problem with remote printing is that the remote printer often prints documents which are afterwards never been requested back, nor be paid.

It is therefore important to have an intermediate computing device having control function on the remote printing process.

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To end with, print jobs can be relayed to a local control printing computing device in order to reach the printer. The said control printing computing device, if limited in computing abilities can be helped by the intermediate computing device. The invention relates thus to a cloud secure print process for printing an original print-job record available from a first computing device on one printer selected from a series of printers connected to a printing network or web, said printing - network or web or cloud comprising at least one intermediate computing network or web device (said device(s) is/are acting advantageously as printing cloud control system for ensuring or controlling possible connection between the first computing device and the selected printer), whereby the first computing device is provided with means adapted for being connected to the printing network or web or cloud, whereby each printer connected to the printer network or web is defined by a group of parameters and associated with at least one printing control computing device adapted to communicate via the printing network or web for receiving and sending data's, said at least one printing control computing device being not the first computing device, said process comprising the step of :

- connecting the first computer device, possibly through an intermediate computing device, to the printing network or web for searching based on at least one parameter defining printers at least one printer of the series of printers connected to the printing network or web ;

- receiving on the first computing device data of at least one printer of the said series from the printing network or web or from an intermediate computing device;

- selecting on the first computing device at least one printer based on the data received from the printing network or web, so as to define at least one selected printer;

- sending the information relating to the selected at least one printer, via the printing network or web and/or one intermediate computing network or web device and/or the said intermediate computing device, to the printing control computing device controlling the said at least one printer or to an intermediate computing device connecting the first computer device to the printing network or web,

- editing by a computing device selected from the group consisting of said printing control computing device controlling the selected at least one printer, the said intermediate computing device connecting the first computer device to the printing network or web, and one intermediate computing network or web device, an encryption QR code, especially a QRTag specific for the selected at least one printer for at least one print job record available from the first computing device, said QRTag defining at least an encrypting key, advantageously a public encrypting key (by public encrypting key, it is referred to a key which is widely distributed, while the private key is only known by the proprietor. The two keys are related mathematically. The private key is thus only known by the control printing computing device, possibly being determined or calculated after a QR code being presented by the intermediate computing device)

- presenting to the first computing device or to a device adapted to be connected with the first computing device (such as the mobile phone device, a i-pad, a tablet, etc. The connection with the first computing device can be operated by WIFI, Bluethooth, etc.), the QR Code, preferably the QRTag, so as to enable the first computing device to have a reading of the QR Code, especially the QR Tag, or part( s) thereof; said reading being sufficient for determining or calculating an encryption key by the first computing device or by a device adapted to be connected with the first computing device or by the intermediate computing device connecting the first computing device to the printing network or web or cloud or by one intermediate computing network or web device ,

- possibly presenting to the control printing computing device, the QR Code, preferably the QRTag, so as as to enable the control printing computing device to have a reading of the QRCode, especially QR Tag or part(s) thereof, said reading being then sufficient for determining or calculating a decryption key, (for example in case of presenting the QRTag or a QRCcode, the QRTag or QRCode can be presented on any possible support, such as paper, electronic support, i-Pad, Tablet, etc., preferably controlled by the user of the first computing device who has to print a job-record),

- encrypting on the first computing device the print job record to be printed on the selected printer so as to convert the print job record into an encrypted print job record;

- sending the encrypted print job record from the first computing device to a second computing device selected from the group consisting of the printing control computing device and the said intermediate computing device associated to the printing network or web or cloud, via the printing network or web or cloud, possibly via the intermediate computing device,

- decrypting the encrypted print job record by the printing control computing device controlling the at least one selected printer and/or the said intermediate computing device by using the decrypting key into the original print job record, and

- printing the original print job record on the at least one selected printer, said printing being at least partly controlled by the printing control computing device controlling the at least one selected printer .

As explained on http://en.wikipedia.org/wiki/QR_code, QR code (abbreviated from Quick Response Code) is a matrix barcode (or two-dimensional barcode) which is a machine-readable optical label that contains information about the item to which it is attached. A QR code can for example use four standardised encoding modes (numeric, alphanumeric, byte / binary, and kanji) to efficiently store data; extensions may also be. used.

A QR code consists of black modules (square dots) arranged in a square grid on a white background, which can be read by an imaging device (such as a camera) and processed using Reed-Solomon error correction until the image can be

appropriately interpreted; data is then extracted from patterns present in both horizontal and vertical components of the code. The QRTag contains at least an encryption key, and/or part of a certificate delivered by a trusted Certification Authority (the CA). The QRTag

advantageously only comprise information for the encryption information for identifying the selected printer, as well as information for communicating the secured print job to the only computing device able to decrypt the information. This enables a better control of the use of encryption key and of the decryption process. The decryption process can for example be only available after a specific time, day and hours, meaning that the control computing device can only decrypt the encrypted job record and print it after a specific moment or time. The printing can possibly only be started after receiving a specific code of the user of the first computing device or from an electronic device which. is adapted to be connected with the first computing device, for example when the user is at the site or location of the printing.

The decryption process is for example operated by using a decryption key of an asymmetric key system or a system of this kind, such as a three-pass protocol. Asymmetric key system uses specific algorithms.

The certificate delivered by the trusted Certification Authority is advantageously adapted for properly checking the identity of the key-holder, the encryption key or QRTag or QRCode sent to the first computing device or device adapted to be associated to said first computing device.

The program for encrypting can be downloaded from the web on the computing device, or can only be accessible for the time required for the encryption purposes. The encryption work can be operated by the first computing device. The encryption work can possibly only be operated within a specific time period after downloading of the program, said program having for example an instruction rendering it ineffective after a specific time period. However, it is also possible in case the first computing device is not adapted for encrypting, the intermediate computing device is adapted for operating the encryption works. For defining the encryption key and thus the decryption key, the intermediate computing device requests advantageously from the user of the first computing device an extra identification code, which is added to the QRTag, whereby the control printing computing device needs to receive said identification code for being able to have access to the decryption key.

Advantageously, the printing network or web . or cloud is associated to an intermediate computing network or web or cloud device connecting the printing network or web or cloud to the first computing device, possibly, but

advantageously through the said intermediate computing device and/or said intermediate computing network or web device. Said device or devices advantageously control the information to be sent to the computing device controlling the selected printer and provide info to the first computing device for selecting a printer associated to the printing cloud.

Advantageously, the intermediate computing device and/or said intermediate computing network or web device associated to the printing network or web is/are adapted for:

- receiving a printing request from the first computing device of a record on a printer having one or more selected parameters (such as type, location, colour printing, 3D-printing, price, opening hours, availability, past quality score, ...) ; - searching in a printer database one or more printers having said at least one or more selected parameters (said database is for example established by a provider controlling the correct working of the intermediate computing device, by searching owners of printers, shops, etc. accepting to print third party job record, by putting various information about said printer facilities, quality feedback of said printer facilities, etc.) ;

- transmitting to the first computing device data's relating to one or more printers having said at least one or more selected parameters (said transmission can be done, for example after a first registration, for example a free of charge pre registration) ;

- receiving from the first computing device the selected at least one printer;

- editing an encrypting key, advantageously a QRTag or a QRCode defining an encrypting key;

- sending the QRTag to the printing control computing device controlling the selected at least one printer. Said QRTag or QRCode can advantageously only be activated after receiving a signal form the user of the first computing device requiring a job record to be printed, for example via a message send by a mobile phone or GSM, i-Pad, Tablets, etc.

- Preparing a print job, ready to be processed by the control printing computing device's operating system. Preferably, the intermediate computing device and/or the intermediate computing network or web or cloud device(s) is/are associated to a billing system. Such a billing system is advantageous as confirming clearly that the job record has to be really printed.

Embodiments of the process of the invention have one or more of the following details or characteristics:

• the intermediate computing device and/or the intermediate computing network or web device(s) is/are adapted for :

- controlling an access right of the first computing device to the intermediate computing device, advantageously before the intermediate computing device send the QRTag to the first computing device. And/or

• the intermediate computing device and/or the intermediate computing network or web device(s) is/are adapted for requesting a pre-payment from the user of the first computing device, advantageously before the intermediate computing device send the QRTag to the first computing device..

And/or · the intermediate computing device and/or the intermediate computing network or web device(s) is/are adapted for controlling an access right of the printing control computing device, advantageously before the intermediate computing device send the QRTag to the first computing device.

And/or the intermediate computing device and/or the intermediate computing network or web device(s) is/are adapted for preparing a print job, ready to be processed by the control printing computing device's operating system.

And/or the first computing device or the intermediate computing device encrypts the print-job record into an encrypted print-job record, by using the encrypting key defined by the QRTag, in which the first computing device or the intermediate computing device sends advantageously through the web or net or cloud (advantageously the printing web, net or cloud) the encrypted print-job record to the printing control computing device, while the printing control computing device decrypts the encrypted print-job record into the original print-job record , and in which the printing control computing device controls the printer for printing the original print-job record.

• the first computing device encrypts the print-job record into an encrypted print-job record, by using the encrypting key defined by the QRTag, in which the first computing device sends through the web the encrypted print-job record to the intermediate computing device, in which the intermediate computing device sends the encrypted print-job record via the web to the printing control computing device, and in which the printing control computing device decrypts the encrypted print-job record into the . original print-job record , and in which the printing control computing device controls the printer for printing the original print-job record.

And/or • the first computing device sends information to the intermediate computing device with respect to a selected time when the print-job record has to be printed, and in which the intermediate computing device sends to the printing control computing device a time period before the' selected time when the print-job record has to be printed.

And/or

• the first computing device (CP1, 100) encrypts the print-job record (OR) into an encrypted print-job record (EOR), by using the encrypting key (EK) defined by the QRTag, in which the first computing device (CP1, 100) sends through the net or web (PN) the encrypted print-job record (EOR) to the intermediate computing device (ICP,102) associated to the printing network or web (PN), possibly via the intermediate computing device (101), in which the

intermediate computing device (ICP,102) associated to the Printing web or net (PN) sends the encrypted print-job record (EOR) via the net or web (PN) to the printing control computing device (CPP1) and in which the printing control computing device (CPP1, 101) of the selected printer (PI) decrypts the encrypted print-job record into the original print-job record (OR), and in which the printing control computing device (CPPl^',101) controls the selected printer (PI) for printing the original print-job record (OR). And/or

• the first computing device (CP 1,100) sends, possibly via an intermediate

computing device (101) information with respect to a selected printing time or moment when the print-job record has to be printed, to the printing network or web (PN) which is associated to an intermediate computing network or web device (ICP, 102, whereby said intermediate computing device (101) and/or said intermediate computing network or web device (ICP, 102) associated to the printing network or web (PN) sends to the printing control -computing device (CPP1) of the selected printer (PI, 103) information comprising at least to information with respect to the selected printing time or moment when the print-job record has to be printed.

• said process comprising the step of :

- connecting the first computer device, possibly through an intermediate computing device (101), to the printing network or web for searching based on at least one parameter defining printers at least one printer of the series of printers connected to the printing network or web ;

- receiving on the first computing device data of at least one printer of the said series from the printing network or web ;

- sending the information relating to the selected at least one printer, via the printing network or web, to the printing control computing device controlling the said at least one printer or to an intermediate computing device connecting the first computing device (100) to the printing network or web,

- editing by an intermediate computing device an encryption QRTag specific for the selected at least one printer for at least one print job record available from the first computing device, said QRTag defining an encrypting key and printer identification, as well as possibly, but advantageously a decrypting key or a decryption QRTag;

- encrypting on the first computing device the print job record to be printed on the selected printer so as to convert the print job record into an encrypted print job record; - sending the encrypted print job record from the first computing device to the second computing device via the printing network or web,

- sending by the intermediate computing device the encrypted print job to the control printing computing device;

- decrypting the encrypted print job record by the printing control computing device controlling the at least one selected printer by using his decrypting key into the original print job record,- and

- printing the original print job record on the at least one selected printer. Details and characteristics of a process of the invention will appear for the following description, in which reference is made to the attached drawings. In said drawings, Figures 1 A and IB are general flow sheets of an embodiment of the process of the invention.

Figures 2 to 5 are specific schematic flow sheets of embodiments of the invention.

The cloud secure print process of figures 1A and IB is a process for printing an original print-job record OR available from a first computing device CP1/ 100 on one printer PI/ 103 selected from a series of printers P1,P2, 103, 103'... connected to a printing network or web PN, whereby the first computing device CP1 is provided with means adapted for being connected to the printing network PN. Each printer connected to the printer network or web is defined by a group of parameters Fl,F2,etc. and associated with at least one printing control computing device (CPP1 for PI; CPP2 for P2, etc.) adapted to communicate via the printing network or web or cloud PN for receiving and sending data's, said at least one printing control computing device CPP1,CPP2 being not the first computing device CP1.

The process comprises the step of :

- connecting the first computer device CP1 to the printing network or web or cloud PN for searching based on at least one parameter F 1 defining printers P 1 ,P2, ... , 103, 103' at least one printer PI of the series of printers connected to the printing network or web ; - receiving on the first computing device CP1 data of at least one printer PI of the said series from the printing network or web PN or from the intermediate computer ICP, said intermediate computer ICP being adapted for controlling the process ;

- selecting on the first computing device CP 1/100 at least one printer (for example PI) based on the data received from the printing network or web, so as to define at least one selected printer;

- sending the information relating to the selected at least one printer PI, via the printing network or web PN to an intermediate computing device ICP associated to the printing network or web, said computing device controlling at least partly the working the printing net or web or cloud PN for providing via the web or cloud PN information to the first computing device CP1, as well as to the printing control computing device CPP1 of the selected printer PI,

- editing by the intermediate computing device ICP a QRTag specific for the selected at least one printer for at least one print job record available from the first computing device, said QRTag defining an encrypting key, a certificate delivered by a trusted Certification authority CA, as well as information for communicating the secured print job to the only computing device able to decrypt the secure print job. For example, information for communicating the secure print job are email address, time when the email has to be sent, etc. ; said encrypting key being advantageously memorised in a external data bank system 200 provided with means for deleting or cancelling key or key access after a selected time period ;

- encrypting on the first computing device CP1 the print job record to be printed on the selected printer so as to convert the print job record into an encrypted print job record EOR;

- sending the encrypted print job record EOR from the first computing device to the second computing device via the printing network or web, possibly via the intermediate computing device ICP/102,

- decrypting the encrypted print job record EOR by the printing control computing device CPP1 controlling the at least one selected printer PI by using the decrypting key DK into the original print job record , and

- printing the original print job record on the at least one selected printer. The QRTag defines an encryption key EK

The intermediate computing device ICP/102 associated to the printing network or web or cloud is adapted for:

- receiving from the first computing device the selected at least one printer;

- editing a QRTag defining an encrypting key;

- The right to use can also be adapted to control the possible existing authors rights, national laws or requirements, the type of documents which can be printed, etc.) ;

Preferably, the intermediate computing device ICP/102 is associated to a billing system. Such a billing system is advantageous as confirming clearly that the job record has to be really printed.

The intermediate computing device ICP/102 is adapted for : - controlling an access right of the first computing device to the intermediate computing device.

The intermediate computing device is adapted for requesting a pre-payment from the user of the first.

The intermediate computing device is adapted for controlling an access right of the printing control, The first computing device encrypts the print-job record OR into an encrypted print-job record EOR, by using the encrypting key EK defined by the QRTag, in which the first computing device CPl/100 sends through the web the encrypted print-job record to the printing control computing device, and in which the printing control computing device CPP1 decrypts the encrypted print-job record EOR into the original print-job record OR, and in which the printing control computing device controls the printer for printing the original print-job record, for example for printing the document at a specified moment.

The first computing device CPl 100 encrypts the print-job record into an encrypted print-job record, by using the encrypting key defined by the, in which the first computing device sends through the web the encrypted print-job record to the intermediate computing device, in which the intermediate computing device sends the encrypted print-job record via the web to the printing control computing device, and in which the printing control computing device decrypts the encrypted print-job record into the original print-job record , and in which the printing control computing device controls the printer for printing the original print-job record.

The first computing device sends information to the intermediate computing device with respect to a selected time when the print-job record has to be printed. The process comprises specifically the step of : - connecting the first computer device to the printing network or web for searching based on at least one parameter defining printers at least one printer of the series of printers connected to the printing network or web

- sending the information relating to the selected at least one printer, via the printing network or web, to the printing control computing device controlling the said at least one printer or to an intermediate computing device associated to the printing network or web,

- editing by an intermediate computing device an encryption QRTag specific for the selected at least one printer, said QRTag defining an encrypting key;

- presenting to device adapted to be connected with the first computing device the QRTag,

- sending the encrypted print job record from the first computing device to the second computing device via the printing network or web,

- sending a message from the control printing computing device to the

intermediate computing device, for example for stating that the job record will be printed at one specific moment, message which will then be forwarded to the device adapted to be connected with the first computing device;

- decrypting the encrypted print job record by the printing control computing device controlling the at least one selected printer by using the decrypting key into the original print job record, and

- printing the original print job record on the at least one selected printer, and - possibly sending a message to the device adapted to be connected to the first computing device that the job has been printed and/or is available at this specific location. Said message can be sent by the intermediate computer or by a computer connected to the computing device controlling the printer or by the computing device controlling the printer. Figure 2 shows a first computer device 100 connected to an intermediate computing device 101, for example by Bluetooth, Wifi connections. The first computer device 100 comprises a file to be printed on a printer selected from a group of printers 103 in connection with the intermediate computing device. The intermediate computing device is in this case also the printing control computing device. The printing network or web comprises an intermediate network/web computing device 102, said intermediate computing device 102 controlling advantageously the working of the printing network or web or cloud PN. The first computer device 100 sends a print request to the intermediate computing device 101, as well as parameters relating to the user of said first computer device. Said intermediate computing device 101 (which does not control the cloud as such, but can send and collect information from the printing cloud PN) is then connected (for example via internet) to the intermediate computing web device 102, which controls at least a portion of the printing cloud, for sending a message relating to a print rights control request, so that the intermediate web computing device can determine the printer(s) valid for printing files from the first computing device 100, the time for such printing, the cost of such printing, etc. The Intermediate web computing device sends this information back to the intermediate computing device and via the later to the first computing device 100, in the form of information listing the authorized printers, the time, the cost of printing, a QR Tag suitable for determining an encryption key, etc.

The first computing device will determine from the received QR Tag an encryption key for the file to be printed and will use said encryption key for establishing an encrypted file. The user of the first computing device will then select the authorized printer for printing the file and will send this information to the mtermediate computing device 101, as well as the encrypted file. The intermediate computing device will then send the print instruction (selected printer, prove of payment, etc.) to the intermediate computing network/web device, whereby said intermediate computing network/web device will send to the intermediate computing device 101 rights confirmation for printing the file on the selected printer 103, as well as a QR Tag adapted for calculating a decrypting key for the encrypted file. The intermediate computing network/web device decrypts the encrypted file in a file ready to be printed, but can keep the printing on hold in function of the printing time request. The intermediate computing device 101 sends, after or when or just before sending the printing instructions to the printer 103, a printing message, whereby the user knows that his file has been printed or will be printed shortly, for example within the next 10 to 30 minutes.

This enables to prevent the print-job record or file to be transferred on the cloud printer network/web or cloud across the internet. The intermediate computing network/web or cloud device controls the

intermediate computing device 101 and thus the printer 103.

Figure 3 shows schematically a process quite similar to the process of Figure 3, except that the encrypted file is sent by the intermediate computing device 101 to the intermediate computing network/web device 102, in which the encrypted file is decrypted advantageously just before the required or requested printing time. In this process, the intermediate computing device 101 transfers the decrypted file to be printed to the selected printer 103, and as soon as the decrypted file has been transferred to the printer 103, an instruction present in the intermediate computing device cancels the decrypted file or converts said file into a new encrypted file. Figure 4 shows schematically an option for processes of the invention. The print request is send from the first computing device 100 to the intermediate computing device 101 with instruction to delay the printing, for example for more than 1 or several days. In this case, advantageously after having determined the printer where the printing has to be operated and after checking the rights confirmation for printing the job or file, the intermediate computing device 101 sends the encrypted file to the intermediate computing network/web device. Said encrypted print job to be printed is then kept on hold. Just before the requested printing time on the selected printer and/or after receipt of a printing instruction from the first computing device 100, the intermediate computing device 101 receives from the intermediate computing network/web device the encrypted file, as well as a QR Tag enabling the intermediate computing device 101 to calculate a decrypting key enabling to decrypt the file to be printed. The so decrypted file is then sent to the selected printer 103 for printing.

In the embodiments of figures 2 to 4, the intermediate computing device is connected to the printing control intermediate computing device or intermediate computing network or web device can in function of the choice or request from the user of the first computing device 100 :

- ask to the intermediate computing web or network device, the rights to print, if printing the job is allowed, directly send the print job to the printer device, and report the print result to the intermediate computing web/network device, for statistics and/or payment purpose; and/or

- modify the print instruction and/or send instructions to the intermediate computing device or to the computing device controlling the printer (which can be different from the intermediate computing device 101) to modify the print instructions and/or options, and/or to modify the print job itself; and/or

- receive the "to be printed" job and relay it to the intermediate computing network or web device, for example for transforming the "to be printed" job in a printer readable format for the printer and/or the computing device controlling the printer and/or the intermediate computing device, the printer readable format file being then sent to the intermediate computing device or the computing device controlling the selected printer so that said readable format file being printed on the selected printer, the intermediate computing device or the computing device controlling the selected printer being advantageously able to modify one or more print options and/or the print job itself; but also for example to kept on hold the "to be printed job" (encrypted or decrypted, but preferably as encrypted format) or to release in the future the "to be printed " job, possibly served with another intermediate computing device, such as the intermediate web/network computing device.

Figure 5 is a schematic view of a further process similar to that shown in Figure 3, except that the intermediate computing network/web device is connected to a first intermediate computing device 101 connected to the first computing device 100, as well to a possible printer for printing jobs after receipt of rights confirmation, and to a second intermediate computing device 10Γ connected to another printer 103' located at another place than the location of the printer 103. The intermediate computing network/web device 102 is then able to send right confirmation and print instruction to the second intermediate computing device 10 for printing the job on the printer 103'. In this embodiment, QR Tags are sent for example to the first intermediate computing device 101 and to the second intermediate computing device 10Γ, so as to enable the said intermediate computing device to calculate respectively an encrypting code and a decrypting code, whereby the intermediate computing network/web device receives and sends only an encrypted job file, the decrypting being only operated in the second intermediate computing device 10 which control the printer 103'.

Claims

What I claim is:

1. A cloud secure print process for printing an original print-job record (OR) available from a first computing device (CP1, 100) on one printer (PI) selected from a series of printers (P 1 ,P2, 103,103') connected to a printing network or web (PN), said printing network or web (PN) comprising at least one intermediate computing network or web device (ICP, 102), whereby the first computing device (CP1, 100) is provided with means adapted for being connected to the printing network (PN), whereby each printer (Ρ1,Ρ2,103,103') connected to the printer network or web (PN) is defined by a group of parameters (F1,F2,...) and associated with at least one printing control computing device (CPP1,CPP2, 101) adapted to communicate via the printing network or web (PN) for receiving and sending data's, said at least one printing control computing device (CPP1, CPP2, 101) being not the first computing device (CP1, 100), said process comprising the step of :

- connecting the first computer device (CP1, 100), possibly through an

intermediate computing device (101,101'), to the printing network or web (PN) for searching based on at least one parameter (F1,F2,...) defining printers at least one printer of the series of printers (P1,P2,...) connected to the printing network or web (PN);

- receiving on the first computing device (CP1, 100) data of at least one printer of the said series from me printing network or web (PN) or from an intermediate computing device (101, ICP, 102);

- selecting on the first computing device (CP1, 100) at least one printer (PI) based on the data received from the printing network or web (PN) or from an

intermediate computing device or intermediate computing network or web device (101, ICP, 102), so as to define at least one selected printer (PI);

- sending the information relating to the selected at least one printer (PI), via the printing network or web (PN) and/or one intermediate computing network or web device (102, ICP) and/or the said intermediate computing device (101), to the printing control computing device (CPP1) controlling the sa d at least one printer (PI) or to an intermediate computing device (101) connecting the first computer device (CP1, 100) to the printing network or web (PN),

- editing by a computing device selected from the group consisting of said printing control computing device(CPPl, 101) controlling the selected at least one printer (P 1 , 103 ), the said intermediate computing device (101) connecting the first computer device (100,CP1) to the printing network or web (PN), and one intermediate computing network or web device (ICP,102) an encryption QR code, especially a QRTag specific for the selected at least one printer (PI) for at least one print job record (OR) available from the first computing device (CP1, 100), said QRTag defining at least an encrypting key (EK), advantageously a public encrypting key (by public encrypting key, it is referred to a key which is widely distributed, while the private key is only known by the proprietor. The two keys are related mathematically. The private key is thus only known by the control printing computing device, possibly being determined or calculated after a QR code being presented by the intermediate computing device)

- presenting to the first computing device (CP1, 100) or to a device (101) adapted to be connected with the first computing device, the QR Code, preferably the QRTag, so as to enable the first computing device to have a reading of the QR Code, especially the QR Tag, or part( s) thereof; said reading being sufficient for determining or calculating an encryption key (EK) by the first computing device (CP1, 100) or by a device (101) adapted to be connected with the first computing device (CP1, 100) or by the intermediate computing device (101) connecting the first computing device (100, CP 1) to the printing network or web (PN) or by one intermediate computing network or web device (ICP,102),

- possibly presenting to the control printing computing device (CPP1,101) of the selected printer (PI), the QR Code, preferably the QRTag, so as as to enable the control printing computing device (CPP1,101) to have a reading of the QRCode, especially QR Tag or part(s) thereof, said reading being then sufficient for . determining or calculating a decryption key,

- encrypting on the first computing device (CP1, 100) or on the intermediate computing device (101) the print job record (OR) to be printed on the selected printer (PI) so as to convert the print job record into an encrypted print job record (EOR);

- sending the encrypted print job record (EOR) from the first computing device (CP 1, 100) to. a second computing device selected from the printing control computing device (CPPl, 101), and the said intermediate computing device

(102,ICP) associated to the printing network or web (PN), via the printing network or web (PN), and possibly via the intermediate computing device (101),

- decrypting the encrypted print job record by the printing control computing device (CPPl, 101) controlling the at least one selected printer (PI, 103). and/or the said intermediate computing device (102, ICP) by using the decrypting key into the original print job record (OR), and

- printing the original print job record (OR) on the at least one selected printer (PI), said printing being at least controlled by the printing control computing - device (CPPl, 101) controlling the at least one selected printer (PI, 103).

2. The cloud secure print process of claim 1, in which the printing network or web (PN) is associated to an intermediate computing network or web device (ICP, 102) connecting the printing network or web (PN) to the first computing device (CP1, 100) possibly, but advantageously through the said intermediate computing device (101), whereby said intermediate computing device (101) and/or said intermediate computing network or web device (ICP, 102) associated to the printing network or web (PN) is adapted for:

- receiving a printing request from the first computing device of a record on a printer having one or more selected parameters;

- searching in a printer database one or more printers having said at least one or more selected parameters;

- transmitting to the first computing device data's relating to one or more printers having said at least one or more selected parameters ;

- receiving from the first computing device the selected at least one printer;

- editing a QRTag defining an encrypting key;

3. The cloud secure print process of claim 2, in which the printing network or web (PN) is associated to an intermediate computing network or web device (ICP, 102)

- connecting the printing network or web (PN) to the first computing device (100, CPl) possibly, but advantageously through the said intermediate computing device (101), whereby said intermediate computing device (101) and/ or said intermediate computing network or web device (102, ICP) associated to the printing network or web (PN) is associated to a billing system.

4. The cloud secure print process of claim 2 or 3, in which the printing network or web (PN) is associated to an intermediate computing network or web device

(ICP, 102) connecting the printing network or web (PN) to the first computing device (CP 1,100) possibly, but advantageously through the said intermediate computing device (101), whereby said mtermediate computing device (101) and/or said intermediate computing network or web device (ICP, 102)associated to the printing network or web (PN) is adapted for:

- controlling an access right of the first computing device to the intermediate computing device.

5. The cloud secure print process of claim 4, in which the printing network or web (PN) is associated to an intermediate computing network or web device (102JCP) connecting the printing network or web (PN) to the first computing device

(CP 1,100) possibly, but advantageously through the said intermediate computing device (101), whereby said intermediate computmg device (101) and/or said intermediate computing network or web device (ICP, 102) associated to the printing network or web (PN)is adapted for requesting a pre-payment from the user of the first computing device.

6. The cloud secure print process of claim 4 or 5, in which the printing network or web (PN) is associated to an intermediate computing network or web device (ICP, 102) connecting the printing network or web (PN) to the first computing device (CP 1,100) possibly, but advantageously through the said intermediate computing device (101), whereby said intermediate computing device (101) and/or said intermediate computing network or web device (ICP,102) associated to the printing network or web (PN) is adapted for controlling an access right of the printing control computing device.

7. The cloud secure print process of any one of the preceding claims, in which the first computing device (CP1, 100) or the intermediate computing device (101) encrypts the print-job record (OR) into an encrypted print-job record (EOR), by using the encrypting key (EK) defined by the QRTag, in which the first computing device (CP1, 100) or the intermediate computing device (101) sends

advantageously at least through the web or net (PN) the encrypted print-job record (EOR) to the printing control computing device (CPP1) of the selected printer (PI), and in which the printing control computing device (CPP1) decrypts the encrypted print-job record (EOR) into the original print-job record (OR) , and in which the printing control computing device (CPP1) controls the selected printer (PI) for printing the original print-job record (OR).

8. The cloud secure print process of any one of the claims 1 to 7, in which the first computing device (CP1, 100) encrypts the print-job record (OR) into an encrypted print-job record (EOR), by using the encrypting key (EK) defined by the QRTag, in which the first computing device (CP1, 100) sends through the net or web (PN) the encrypted print-job record (EOR) to the intermediate computing device (ICP,102) associated to the printing network or web (PN), possibly via the intermediate computing device (101), in which the intermediate computing device. (ICP,102) associated to the Printing web or net (PN) sends the encrypted print-job record (EOR) via the net or web (PN) to the printing control computing device (CPP1) and in which the printing control computing device (CPP1, 101) of the selected printer (PI) decrypts the encrypted print-job record into the original print- job record (OR), and in which the printing control computing device (CPP1,101) controls the selected printer (PI) for printing the original print-job record (OR).

9. The cloud secure print process of any one of the claims 1 to 8, in which the first computing device (CP 1,100) sends, possibly via an intermediate computing device (101) information with respect to a selected printing time or moment when the print-job record has to be printed, to the printing network or web (PN) which is associated to an intermediate computing network or web device (I CP, 102, whereby said intermediate computing device (101) and/or said intermediate computing network or web device (I CP, 102) associated to the printing network or web (PN) sends to the printing control computing device (CPPl) of the selected printer (PI, 103) information comprising at least to information with respect to the selected printing time or moment when the print-job record has to be printed.

10. The cloud secure print process of any one of the preceding claims, said process comprising the steps of:

- connecting the first computer device (CP 1,100), possibly through an intermediate computing device (101), to the printing network or web (PN) for searching based on at least one parameter (F1,F2) defining printers (PI, 103), at least one printer of the series of printers connected to the printing network or web (PN) ;

- receiving on the first computing device (CP 1,100) data of at least one printer (P 1 , 103) of the said series from the printing network or web;

- selecting on the first computing device (CP 1,100) at least one printer based on the data received from the printing network or web (PN), so as to define at least one selected printer (PI, 103);

- sending the information relating to the selected at least one printer (PI, 103), via the printing network or web (PN), to the printing control computing device (CPPl, 101) controlling the said at least one printer or to an intermediate computing device (101) connecting the first computing device (100) to the printing network or web (PN),

- editing by an intermediate computing device (ICP, 102) associated to the printing network or web, an encryption QRTag specific for the selected at least one. printer, said QRTag defining an encrypting key; - encrypting on the first computing device (100,CP1) the print job record (OR) to be printed on the selected printer (103,P1) so as to convert the print job record (OR) into an encrypted print j ob record (EOR);

- sending the encrypted print job record (EOR) from the first computing device (100,CP1) to the second computing device via the printing network or web,

- decrypting the encrypted print job record by the printing control computing device (CPP1,101) controlling the at least one selected printer (103,P1) by using me decrypting key into the original print job record, and

- printing the Original print job record (OR) on the at least one selected printer (PI, 103).