KEY DISTRIBUTION FOR A PHYSICAL UNCLONABLE ENCRYPTION SYSTEM

    公开(公告)号:WO2022117626A1

    公开(公告)日:2022-06-09

    申请号:PCT/EP2021/083730

    申请日:2021-12-01

    Applicant: BASF SE

    Abstract: A computer-implemented method for distributing symmetric encryption keys in a communication system (110) comprising a plurality of nodes (112) is disclosed. Each of the nodes (112) comprises a printing device (114) configured for generating at least one encryption key for encrypting data based on changing printer control setting (116) and printer job (118). Each node (112) comprises information about possible printer control settings (116) and possible printer jobs (118). The method comprising the following steps a) providing an initial session key information via at least one secure channel to each node (112), wherein the initial session key information comprises an initial printer control setting (116) and an initial printer job setting (118), wherein the initial session key information is different for each node (112); b) providing as one-time pad an initial session key package to each of the nodes (112) encrypted with the respective node's (112) initial session key information, wherein the initial session key package (128) comprises a plurality of items of first session key information for communication of the respective receiving node (112) with the other nodes (112) of the communication system (110), wherein any two nodes (112) have a common item of first session key information; c) generating at each node (112) second session key information for each of the other nodes (112), wherein the second session key information comprises a second printer control setting (116) and a second printer job setting (118), wherein the second session key information generated by the respective node (112) for the respective other nodes (112) is different for each of the other nodes (112); and d) sending a message from one of the nodes (112) to another one of the nodes (112), wherein the message is encrypted with the first session key information for communication between said node (112) and said another one of the nodes (112), wherein the message comprises the second session key information generated by the node (112) sending the message for the node (112) receiving the message such that the node (112) sending the message and the node (112) receiving the message are able for encrypted communication with each other.

    PROCESS FOR REMOVING WATER FROM A WET PARTICULATE MATERIAL

    公开(公告)号:WO2021104917A1

    公开(公告)日:2021-06-03

    申请号:PCT/EP2020/082274

    申请日:2020-11-16

    Applicant: BASF SE

    Abstract: The present invention is directed towards a process for removing water from a wet particulate material, said process comprising the step of introducing at least one particulate material with a residual moisture in the range of from 0.5 to 25 % by weight into a rotary drum reactor and moving it through the rotary drum reactor together with a flow of a gas, wherein said rotary drum reactor contains of the following elements: (A) a double-wall steel drum, (B) with an electrical heating system attached to the inner wall, (C) internal(s) attached to the inner wall, or to the front and end surfaces of a non-rotating part of said rotating drum, (D) and, optionally, a corrosion protection layer attached to the electric heating system.

    PROCESS FOR COATING AN OXIDE MATERIAL
    3.
    发明申请

    公开(公告)号:WO2018162234A1

    公开(公告)日:2018-09-13

    申请号:PCT/EP2018/054220

    申请日:2018-02-21

    Applicant: BASF SE

    Abstract: The present invention is related to a process for making a coated oxide material, said process comprising the following steps: (a) providing a particulate material selected from lithiated nickel-cobalt aluminum oxides, lithium cobalt oxide, lithiated cobalt-manganese oxides and lithiated layered nickel-cobalt-manganese oxides, (b) treating said cathode active material with a metal alkoxide or metal amide or alkyl metal compound, (c) treating the material obtained in step (b) with moisture, and, optionally, repeating the sequence of steps (b) and (c), wherein steps (b) and (c) are carried out in a vessel of which at least one part rotates around a horizontal axis.

    SIGNATURES AND LABELS IN A BLOCKCHAIN DERIVED FROM DIGITAL IMAGES

    公开(公告)号:WO2022223536A1

    公开(公告)日:2022-10-27

    申请号:PCT/EP2022/060273

    申请日:2022-04-19

    Applicant: BASF SE

    Abstract: A computer implemented method for generating at least one security label (110) using at least one printing device (112) is proposed. The method comprises the following steps: i) (114) generating a first digital image (116) comprising a plurality of colored pixels by printing a printer job with a printer control setting and scanning the printout using the printing device (112) thereby generating a digital fingerprint; ii) (118) providing a binary code (120) of identifier information; iii) (122) mapping the identifier information with the digital fingerprint by determining a binary code of the digital fingerprint and adding the binary code (120) of the identifier information to the color code of the first digital image (116); iv) (124) generating a second digital image (126) having a plurality of colored pixels different from the first digital image (116) by transferring the added binary codes into a color code of the second digital image (126); v) (128) printing the second digital image (126) on a substrate (129) thereby generating the security label (110).

    NEW METHOD FOR PSEUDO-RANDOM NUMBER GENERATION FOR INFORMATION ENCRYPTION

    公开(公告)号:WO2021001147A1

    公开(公告)日:2021-01-07

    申请号:PCT/EP2020/066628

    申请日:2020-06-16

    Applicant: BASF SE

    Abstract: A method of generating at least one encryption key (130) for encrypting data (142), a method of 5 data transmission between at least two communication systems (136, 138), a method of encrypting data (142) and a method of decrypting encrypted data (144) are disclosed. Further disclosed are an encryption key generating device (110), a system (134), a data encryption system (148) and a data decryption system (150). The method of generating at least one encryption key (130) for encrypting data (142), specifically for data transmission over an insecure channel, comprises: i. blending at least two materials (114) according to at least one item of blending in-formation by using a blending device (112), thereby generating at least one blend (120); ii. detecting at least one material property (124) of the blend (120) by using at least one detector (126); and iii. transforming the material property (124) into the encryption key (130) by using at least one data processing device (132) configured for applying at least one trans-formation algorithm to the material property (124).

    VERFAHREN ZUR HERSTELLUNG VON CHLOR DURCH GASPHASENOXIDATION VON CHLORWASSERSTOFF IN EINEM WIRBELSCHICHTREAKTOR
    7.
    发明申请
    VERFAHREN ZUR HERSTELLUNG VON CHLOR DURCH GASPHASENOXIDATION VON CHLORWASSERSTOFF IN EINEM WIRBELSCHICHTREAKTOR 审中-公开
    用于生产氯氯化氢气相氧化流化床反应器

    公开(公告)号:WO2011015503A1

    公开(公告)日:2011-02-10

    申请号:PCT/EP2010/060943

    申请日:2010-07-28

    CPC classification number: C01B7/04 B01J8/0055 B01J8/18

    Abstract: Vorgeschlagen wird ein Verfahren zur Herstellung von Chlor durch Gasphasenoxidation von Chlorwasserstoff an einem heterogenen, partikelförmigen Katalysator, in einem Wirbelschichtreaktor, unter Erhalt eines Produktgasgemisches, das in Zyklonen (1), die im oberen Bereich des Wirbelschichtreaktors angeordnet sind, von mitgerissenen Katalysatorpartikeln befreit wird, umfassend einen zylindrischen oberen Teil (2) mit einem tangentialen oder spiralförmigen Einlauf (3) für das Produktgasgemisch, der sich an seinem unteren Ende über einen konischen Teil (4) in ein Zyklonfallrohr (5) verjüngt, sowie ein zentrales Tauchrohr (6) im oberen Bereich des Zyklons (1) zur Ableitung des von mitgerissenen Katalysatorpartikeln befreiten Produktgasgemisches, das dadurch gekennzeichnet ist, dass - eine bis sieben Kaskaden von jeweils zwei bis fünf hintereinander geschalteten Zyklonen (1) eingesetzt werden, wobei die Zyklone (1) jeder Kaskade, mit Ausnahme des jeweils zuerst durchströmten Zyklons (1), der so ausgelegt ist, dass darin ca. 90 bis 99 Gew.-% der mitgerissenen Katalysatorpartikeln abgeschieden werden, am unteren Ende des Zyklonfallrohrs (5) jeweils ein Trickle Valve (7) aufweisen, umfassend ein abgewinkeltes Rohrendstück (8) sowie eine lose, in einem Winkel α zur Vertikalen aufgehängte Klappe (9), wobei der Winkel α und das Gewicht der Klappe (9) so ausgelegt sind, dass das Drehmoment der Klappe (9) bezogen auf den Durchmesser der Auslassöffnung aus dem abgewinkelten Rohrendstück (8) im Bereich von 2 bis 300 N/m 2 liegt.

    Abstract translation: 公开了一种用于在流化床反应器中制备的氯化氢气相氧化氯在非均相,颗粒催化剂,以得到在旋风器的产物气体混合物(1),其被布置在夹带的催化剂颗粒的流化床反应器的上部区域是自由的方法, 包括圆柱形上部部分(2)具有切向或螺旋形入口(3),用于经由一个圆锥形部分位于在其下端(4)在旋风分离器落管(5)是锥形的产物气体混合物,和一个中央浸入管(6) 旋风分离器(1)的,用于从夹带的催化剂释放的上部区域中的粒子的产物气体混合物,其特征在于: - 一至七个两个至五个串联连接的旋风分离器(1)的级联被使用,其中,所述旋风器(1),每个级联的, 与第一外通过每个旋风分离器流动(1) 其被设计成使得在大约90至99被沉积重量夹带的催化剂的%在旋风分离器落管(5)的在每种情况下的下端的滴流阀(7)包括一个弯曲的管端(8)和一个松散的颗粒 悬浮在于垂直翼片(9),其中所述角度a和所述翼片的重量(9)被设计的角度,以使折翼的转矩(9)相对于所述成角度的管端部的出口开口的直径(8) 是在2至300 N / m 2的范围。

    ECOLOGICAL MINING USING AT LEAST ONE PRINTING DEVICE FOR PROOF-OF-WORK

    公开(公告)号:WO2022194850A1

    公开(公告)日:2022-09-22

    申请号:PCT/EP2022/056665

    申请日:2022-03-15

    Applicant: BASF SE

    Abstract: A computer implemented method for proof-of-work for generating and validating a block of a blockchain using at least one printing device is proposed. The printing device is configured for generating at least one digital image depending on a printer control setting. The method comprises the following steps: i) (110) providing an initial digital image (112) comprising a plurality of colored pixels, wherein the initial digital image (110) is taken from an image database and/or is generated by printing and scanning the initial digital image by using an initial printer control setting; ii) (114) providing a task digital image (116) comprising a plurality of colored pixels different from the initial digital image (112); iii) (118) selecting a mining printer control setting (120), printing the initial digital image (112) by using the printing device by blending pigments with the selected mining printer control setting (120) and scanning the printed image by using at least one scanning device, thereby generating a mining digital image (122) having a plurality of colored pixels different from the initial digital image (112); iv) (124) comparing the colored pixels of the mining digital image (122) and the task digital image (116) by using at least one processing device; wherein the method comprises repeating steps ii) (114) to iv) (124) until the colored pixels of the mining digital image (122) and the task digital image (116) are found to be identical, wherein in each case in step iii) (118) a different mining printer control setting (120) is selected, wherein the mining printer control setting (120) for which the mining digital image (122) and the task digital image (116) are found to be identical is used as the proof-of-work for generating and validating the block of the blockchain.

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