90results about How to "Increase the amount of keys" patented technology

The invention discloses an image encryption method based on a chaos theory and a DNA splice model. DNA encryption belongs to a new cryptology field arising along with the DNA computation in recent years. The image encryption method is characterized in that DNA is used as an information carrier, the modern biological technology is used as an implementation tool, high storage density and high parallelization and the like of the DNA are developed, and cryptology functions of encryption, authentication, signature and the lie are realized. Because of a series of properties of wide frequency spectrum, random-like property, extreme sensitivity for structure parameters and initial state, and the like, a chaos system has the characteristic of difficult reconstruction and prediction, and is an important field of the cryptology research. By combining the advantages of the DNA cipher and the chaos theory, the invention provides an image grouping encryption technology based on a chaos and DNA splice model. The method comprises the steps of: firstly, setting a coding rule of the DNA, carrying out DNA coding and optimization on a secret image to obtain a DNA plaintext sequence and generate a corresponding chaos sequence; and setting DNA sequence grouping encryption algorithm based on the DNA splice calculation model according to the generated chaos sequence and the generated DNA plaintext sequence for realizing the information encryption of the image, thereby effectively improving the encryption effect of the information of the image.

The invention discloses a flat pin tumbler lock which adopts the milling tooth groove key and comprises a lock cylinder and the corresponding key; the lock cylinder comprises a lock body, a front plug and a back plug in the lock body; the front plug is provided with a flat pin tumbler set matched with the locking side post; wherein, the middle part of a flat pin tumbler and the end part of the other flat pin tumbler are respectively provided with projections extending to the key hole; a clip plate and a fixing part matched with the step-shaped groove on the locking side post are arranged on the upper part of the locking side post groove; the key matched with the lock cylinder includes a key plate; an inner milling tooth groove and an outer milling tooth groove are respectively arranged on the lateral and middle parts of one side of the key plate; bits are arranged on the lateral walls of the outer milling tooth groove and the inner milling tooth groove. The flat pin tumbler lock has the advantages of improving the key amount, reducing the inter-unlocking rate and having better theft protection property.

The invention is a three-dimensional code lock, which relates to a lockset. In order to overcome the shortcomings of the existing mechanical locks, such as low key quantity and low strength of the lock cylinder material, the present invention abandons the traditional shaft-type lock cylinder, fully arranges the lock code and key code in the three dimensions of space, and directly uses the key code The needle rod pushes the lock code needle rod to achieve high key capacity, miniaturization, no key slot, and high-strength lock cylinder. The lock core technology adopted in the present invention: the code lock screen and the emboli honeycomb are closely adjacent, and the code lock screen has many holes according to the two-dimensional arrangement mode, and the lock codes of various code numbers are installed in the holes to form a three-dimensional lock code. Layout, the emboli honeycomb also has many nests arranged in a two-dimensional manner, the nests are equipped with emboli and springs, the lock code screen is connected to the fixed piece, and the emboli honeycomb can rotate relatively. The key technology adopted in the present invention: the key codes of various code numbers are connected to the key code holder in a two-dimensional arrangement to form a three-dimensional layout. Lock codes and key codes are arranged in three dimensions, and the number of keys can be as high as one trillion or more.

The invention discloses a data transmission method based on quantum communication, being applied to a first communication end. The method includes the steps of encrypting the target data with a first conventional key; sending the obtained first encrypted data to a second communication end, so that the second communication end decrypts the first encrypted data by using the first traditional key to obtain the target data; performing the quantum encryption processing on the conventional key set in a first key pool using the quantum key by means of the first communication end, sending the obtained second encrypted data to the second communication end, so that the second communication end decrypts the second encrypted data with the quantum key to obtain the conventional key set including a first conventional key. According to the invention, the key size of the quantum secure communication system is improved, the normal operation of quantum secure communication system can be guaranteed. The invention further discloses a data transmission device based on quantum communication, which has the corresponding technological effects.

The present invention discloses one kind of cipher inputting and cipher distinguishing device for turntable type cipher lock with low cost, great amount of cipher keys and simple cipher input and setting. The cipher inputting and cipher distinguishing device for turntable type cipher lock converts the lock turning direction and angle into digital signal; the digital signal is traced, determined, calculated and displayed; and based on the determination result and calculation result, corresponding logic judgment and execution are performed to realize the functions of cipher input, cipher distinction and cipher setting.

The invention discloses a gear string key mechanical anti-theft lock, and relates to the field of mechanical anti-theft locks. A key hole and a handle rotating shaft are arranged on a same vertical line; a key is formed by connecting a plurality of small gears in series; each small gear is a complete gear, or an incomplete gear, or a gear with no tooth; and the key drives all racks to run for different distances through an intermediate gear. After the key is rotated for one circle, the handle drives a cam to firstly push a locking plate to be inserted into saw teeth of the racks, then the racks cannot move any more, the cam pushes an unlocking inserting plate to be inserted into rectangular openings of the racks, and the cam can continuing rotating for unlocking. When the key is incorrect,the locking plate can still clamp the racks firstly and the racks cannot move, but the unlocking inserting plates cannot be inserted into the rectangular openings, so that the cam is prevented from rotating, and the lock cannot be unlocked. If the handle is twisted strongly, the handle is idle. Locking can be completed without using a key but reversely lifting the handle. The racks, the intermediate gear and the like are simple in structure, can be stamped and processed, and are low in manufacturing cost. The lock has the characteristics of preventing technical unlocking, preventing unlockingby damage, large key amount, stability, durability and the like.

The invention discloses an electronic remote control lock head with an emergency unlocking function, and belongs to the field of electronic locks. The electronic remote control lock head comprises a lock shell, a motor, a dial wheel, a dial wheel driving piece, an unlocking rod, an unlocking pinball, an unlocking matching spring and a lock cylinder. The motor, the dial wheel driving piece and the unlocking rod are sequentially mounted in the lock shell, a pinball containing groove is formed in the end, matched with the dial wheel driving piece, of the unlocking rod, and a stopping block is arranged in the pinball containing groove. One end of the dial wheel driving piece is connected with the motor, and the other end of the dial wheel driving piece is provided with a boss which is located in the pinball containing groove and is free of rotating interference with the stopping block. The dial wheel is fixed on the dial wheel driving piece, the unlocking pinball and the unlocking matching spring are sequentially arranged on the lower portion of the pinball containing groove, the lower end of the unlocking matching spring is matched with the lock cylinder, and the lock cylinder rotates to enable the unlocking pinball to enter or exit from the pinball containing groove. The electronic remote control lock head can be unlocked by an emergency key in emergency circumstances, and the trouble and loss of overall dismounting of the electronic lock are avoided; the concealment of an emergency key hole is good, and the safety is high.

The invention provides a blade-type lock closed and opened under the control of lifting of a brake rod, and a key, belonging to a hardware lock manufacturing technology. Under the cooperation of a blade, a safety lever, a start key, a tail sleeve and the brake rod, the safety lever can be dropped by means of the key to drive the brake rod to fall simultaneously, so that the brake rod locked in the lock is separated; and the key is capable of driving the key cylinder and the tail sleeve to rotate together, thus unlocking the lock; otherwise, the key is drawn out so that the brake rod enters the lock again and is locked in a braking groove; and then, the lock cylinder can be only idled and the lock is closed. The blade-type lock provided by the invention is novel in design, rational in structure, large in key quantity and good in safety performance. The blade-type lock comprises such components as the lock (1), wherein a kidney slot (10) is formed outside the lock cylinder (2); a safetylever groove (12) is formed on the lock cylinder (2); the safety lever (13) is assembled in the safety lever groove (12); the brake rod (19) is vertically connected in the tail sleeve (18); and the start button (20) on the rear end of the safety lever (13) is connected into the cambered groove (19-1) of the brake rod (19).

The invention discloses a code mechanical lock core structure with tooth control, comprising one or more code mechanisms, and a limit member and a control mechanism which are matched with the code mechanism; the code mechanism comprises a center coupled shaft arranged at a center plate and a coding part formed by a code adjustment disc, a ratchet wheel and a return buckle; a second projecting part matched with a notch on the ratchet wheel is arranged at the limit member which is also provided with a second return spring; and the control mechanism comprises an elastic wheel toggling sheet and a tooth control sheet which can be disengaged from the ratchet on the ratchet wheel, and axial return springs are respectively arranged at the wheel toggling sheet and the tooth control sheet. Codes of a lock provided with the lock core structure of the invention are of two-dimensional structure, namely that a plurality of lock core structures can form transverse plurality-digit codes and each single lock core structure can be provided with longitudinal M-digit codes by the code adjustment disc. The code structure can form massive amount of codes by permutation and combination, thus the lock core structure has extremely large size of key and high confidentiality.

The present invention relates to a billiard latch with two rows of billiard groups which are different each from other in spring force in which one row of billiard groups is thinner one and another row of billiard groups of thicker one which can prop said thiner row of billiard groups against its hole position, and said billiard latch is characterized by that when the billiard groups are arbitrarily slidden, said two rows of billiard groups are alternatively or simultaneously being in the state of preventing said billiard latch from being technically unlatched.

The invention relates to a locking head with multiple rows of cross bullets, T-shape bullets and humper, and the key, belonging to hardware lock industry. It comprises key 1, lock core 2 and so on. It is characterized in that multiple rows of bullet holes 50 are set above the key groove 31 of lock core 2 and bullets 51 are set in bullet holes 50; multiple rows of flat bullet holes 52 are set in locking head 3 and anti-drawing flat bullets 53 and spring 54 are set in 52; T-shape bullet holes 9 is set under the key groove and T-shape bullets 4 and spring 10 are set in 9; humper groove 8 is set on the direction vertical with 9, humper 6 is set in humper groove 8 and springs 5 are set at two ends of humper 6; V-shape groove 7 is set on locking head 3 relative to 8; said T-shape bullet 4 comprises body 4-1, column head 4-2 and rectangle groove 4-3; there are two to five rows of bullet holes 50 and there are two to five rows of flat bullet holes 52; V-shape groove 32 is set in the middle of key; side bullet teeth 17 are set at left-right sides of key 1; triangle cylinders 33 are set up and down in the middle of key groove 31. it is provided with novel design, compact structure and good theftproof performance.

The invention discloses a gear transmission type mechanical anti-theft lock, and relates to the field of mechanical anti-theft locks. The gear transmission type mechanical anti-theft lock is characterized in that a key hole and a handle rotating shaft are horizontally arranged, a key is formed by connecting a plurality of pinions in series, each pinion is a complete gear or an incomplete gear or has zero teeth, and the key drives each rack to run for different distances through an intermediate gear. After the key is rotated by a circle, a handle drives a cam to push a locking plate to be inserted into sawteeth of the racks firstly, the racks cannot move any more, the cam pushes an unlocking inserting plate to be inserted into rectangular openings of the racks, and the cam continues to rotate to achieve unlocking. If the key is incorrect, the locking plate still clamps all the racks and cannot move, but the unlocking inserting plate cannot be inserted into the rectangular openings, so that the cam is prevented from continuously rotating, and the lock cannot be unlocked; if the handle is strongly twisted, the handle idles; and the lock is locked only needing to reversely lift the handle without the key. The mechanism is simple in structure, low in manufacturing cost and easy to install, and the lock has the characteristics of technical unlocking prevention, damage unlocking prevention, large secret key amount, stability, durability and the like.

The invention discloses an improved lock head comprising a lock body, a lock core, billiards with V-shaped grooves, and locking side columns which are matched with the V-shaped grooves on the billiards; at least two rows of billiards are not arranged on the same straight line; penetrated guide grooves are arranged on the locking side columns along the radial direction of the lock core; one row of billiards are matched with the sides of the locking side columns; and other rows of billiards are arranged in the guide grooves of the locking side columns and are matched with the end walls of the guide grooves. According to the improved lock head, because the billiards are additionally arranged in the lock core with limited volume, the key amount of the lock core can be greatly improved, and the inter-opening rate of the lock core is reduced. Due to the arrangement of the guide grooves on the locking side columns, the locking side columns can always be kept at a balanced state under the guidance of the billiards in the guide grooves during moving, so that one parts of the locking side columns are not retracted into the lock core and only a small parts of the locking side columns are clamped in a lock body, a non-matching key is prevented from unlocking, and the security of the lock core is improved.

The invention provides a mechanical lock cylinder and a lock, and belongs to the technical field of locks. The mechanical lock cylinder comprises a lock shell, a lock liner, a locking mechanism and multiple blades. The lock liner is rotatably arranged on the lock shell, and a lock hole is formed in the lock liner. The locking mechanism has a locking state for preventing the lock liner from rotating and an unlocking state for allowing the lock liner to rotate. Each blade is movably arranged on the lock liner in the first preset direction and the second preset direction, and each blade has a first position, a second position and a third position. When at least one blade is located at the first position or the second position, the locking mechanism is in the locking state, and in the process that a key is inserted into the lock hole, the key can push all the blades to move from the first positions to the second positions in the first preset direction and push all the blades to move from the second positions to the third positions in the second preset direction, so that the locking mechanism is switched from the locking state to the unlocking state. The mechanical lock cylinder of the structure is high in secret key quantity and technical opening prevention capacity and not prone to being illegally prized open.

The invention discloses a novel mechanical lock wherein a housing and a lock tooth-like is arranged in the locking member, a ring form marble slide track and a center hole are arranged in the lock pin, a marble and a spring are arranged in the hole, the spring encloses the ejector pin on the left side, the motivation block is fixed in the lock pin, the right-hand side of the ejector pin is aligned with the groove of the motivation block, the motivation pawl is arranged on the lock pin, the lock pin is positioned by a retaining ring, the face cover is mounted above the lock member, the marble is pressed by the left side of the spring, the right-hand side of the spring contacts with the end surface of the lock pin

The invention discloses a multi-dimensional radial and axial invisible ball anti-theft lock. The lock comprises a lock body, a lock core, a cover of the lock core, a key hole, one or two rows of radial balls arranged in a ball cavity and a spring connected with the balls, wherein on the lock body, another semi-circle which is opposite to the radial ball cavity direction is provided with four to five vertical groove type ball cavities, the lock core is provided inside with axial invisible balls, which can be inserted in the vertical groove type ball cavities and the number of which is the same as the number of the vertical groove type ball cavities, and a spring; the axial invisible balls are provided with special form convex platforms; and the place which is 14 to 20 millimeters deep in the lock body is provided with a ring-shaped through groove in which the special form convex platforms can be inserted and rotated. In the invention, the axial invisible balls can not be shifted and measured, and the lock can not opened by home-made tools, thereby preventing the lock from being opened by vibration method or a vibrator and greatly increasing the quantity of secret keys; and the mutual unlocking rate of the lock is extremely low, and the lock achieves the aim of anti-theft and ensures the safety of users.

The invention provides a lock cylinder and a lockset. The lock cylinder comprises a shell, a lock liner, a plurality of rotors, a first elastic piece and a key, wherein an installation cavity is defined by the shell, and the shell is provided with a locking assembly; the lock liner is arranged in the installation cavity and provided with key grooves; the multiple rotors are sequentially arranged on the lock liner in the axial direction of the lock liner, the outer edges of the rotors are provided with encoding grooves, the end portions of the rotors extend into the key grooves, and the lockingassembly is provided with locking positions clamped into the encoding grooves and unlocking positions disengaging from the encoding grooves; one end of the first elastic piece is connected to the lock liner, and the other end of the first elastic piece is connected to the end portions of the rotors so as to provide restoring force for the rotors; and at least one side edge of the key is providedwith edge grooves, and the edge grooves correspond to the rotors in a one-to-one manner. According to the lock cylinder, the key number of the lock cylinder can be effectively increased, technologicalunlocking is prevented, meanwhile, an idling function is achieved, and the lock cylinder is prevented from being unlocked violently.

The invention discloses an anti-strong open eccentric computer calabash lock. The front and back double-sided 'E'-shaped keyhole of the existing computer calabash lock is utilized, a fastening sealing strip is additionally arranged in a semi-notch on an opening end of the keyhole, a half part of a closing end of the keyhole is changed into a keyhole with a shape like a Chinese character 'shan', and the position of the keyhole is moved downwards for a certain distance to be eccentric. A key which is matched with the keyhole is also changed into a key with a shape like the Chinese character 'shan'. When the lock is turned to be opened violently and forcefully, a hard alloy key of an unlocking tool also needs to be changed into the shape like the Chinese character 'shan', the width of the hard alloy key is greatly reduced than the width of the original key with the front and back double-sided 'E'-shaped keyhole, so that the strength is caused to be greatly reduced; moreover, because the width is greatly reduced, the torsional moment which is generated by using the same strong force is also greatly reduced; in addition, the lock cylinder keyhole with the shape like the Chinese character 'shan' is eccentric, when strong force is exerted to turn, the larger the force is, the larger the external diameter deformation of a lock cylinder is caused to be, the larger the resistance is, and the harder the turning is; and the exerted strong force needs to be greatly increased, as a result, the alloy key which has the strength being greatly reduced is broken at first. The lock cannot be unlocked through a strong force unlocking manner, has good anti-theft performance and is simple and reliable in structure.

The invention discloses a wheel lock cylinder. The wheel lock cylinder comprises a lock shell, a lock core, an annular hollow frame, a spring bolt, a plurality of password units and a key starting block; the lock core is arranged in the lock shell; the frame sleeves the lock core; the plurality of password units are arranged on the lock core; each password unit comprises a calibration ring, a billiard and a billiard base; a ratchet and a calibration groove are arranged on each calibration ring; a billiard base installation groove is formed in the lock core opposite to each billiard base; eachbilliard base is fixedly arranged on each billiard base installation groove; each billiard is arranged in each billiard base in a matching manner; a protrusion is fixedly arranged at the other end ofeach billiard and positioned on the outer side of each billiard base; each protrusion is engaged with the ratchet; a pressing plate and a positioning shifting rod are arranged in the lock shell; and afirst elastic element, opposite to the pressing plate, is arranged in the lock shell. The wheel lock cylinder is simple in structure, small in the number of parts, low in manufacturing cost, high insafety performance and suitable for large-scale batch production.

The invention provides an incomplete gear driven thief resistant machine lock, and relates to the field of thief resistant machine locks. A key of the thief resistant machine lock is formed by connecting a plurality of short-tooth pinions with the same parameters in series, and the pinions are incomplete gears or complete gears or have zero tooth number and are meshed with spur racks on sliding plates correspondingly; after the key is rotated by a circle, the key drives the sliding plates to operate by different distances, then a lever handle drives a cam to push a locking plate to be insertedinto sawteeth of the sliding plates firstly, then the sliding plates cannot move any more, the cam pushes an unlocking inserting plate to be inserted into rectangular openings of the sliding plates,and the cam continues to rotate to unlock; if the key is unmatched, the locking plate still clamps all the sliding plates and avoids the sliding plates from moving, but the unlocking inserting plate cannot be inserted into the rectangular openings, so that the cam is prevented from continuously rotating, and the lock cannot be unlocked; if the lever handle is strongly twisted, the lever handle idles; and the lock is locked without the key, and the lever handle is reversely lifted to complete locking. The lock is simple in structure, low in manufacturing cost and easy to install, and has the advantages of being resistant to technical unlocking and damage unlocking, large in secret key amount, stable, durable and the like.