CN106355102B - Based on nano material and binary double code key symmetric encryption methods with composite signal - Google Patents
Based on nano material and binary double code key symmetric encryption methods with composite signal Download PDFInfo
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- CN106355102B CN106355102B CN201510416930.XA CN201510416930A CN106355102B CN 106355102 B CN106355102 B CN 106355102B CN 201510416930 A CN201510416930 A CN 201510416930A CN 106355102 B CN106355102 B CN 106355102B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7772—Halogenides
- C09K11/7773—Halogenides with alkali or alkaline earth metal
Abstract
The invention discloses a kind of double code key encryption methods of information, includes the following steps: that each letter in each of 0-9 number and A-Z 1) is separately converted to 4 or 6 bit binary numbers, be divided into the equal binary digit of two units；2) corresponding two groups of binary digits are converted by information to be encrypted, as binary coded one and password two；3) the rare earth up-conversion luminescence nanomaterial of magnetic metal ion modification and compound are reacted, obtains reaction gains, surveyed its light, heat and magnetic signal variation if signal intensity is positive change and 1 is denoted as, conversely, being then denoted as 0；4) binary coded one and password two are established into corresponding relationship with light L, the signal intensity of hot H or magnetic M, compound, respectively obtains code key one and code key two.The material used is relatively simple, can achieve the effect that encryption by multi-signal simultaneously.It because there are two groups of code keys, therefore can realize double code key encryptions, be more advantageous to the secrecy of information.
Description
Technical field
The invention belongs to information encryptions and storing technology field, and in particular to a kind of based on the nanometer material with composite signal
Material and binary double code key encryption methods.
Background technique
The encryption of information is with certain original information data of special algorithm process, even if so that the user of unauthorized obtains
The information encrypted, but the method because not knowing decryption were obtained, the means of the content of information still can not be understood, in military, calculating
There is application in the fields such as machine.Referred to as key when the method wherein decrypted is a kind of parameter.It is be converted in plain text ciphertext or
Convert ciphertext into the parameter inputted in the algorithm of plaintext.And double code key encryption technologies have a pair of secret keys, only obtain wherein one
A code key can not interpret hiding information to come, and have better confidentiality than the encryption of single code key.Therefore, it establishes a kind of new
Double code key encryption technologies of type have wide significance and application prospect.
Summary of the invention
The object of the present invention is to provide a kind of double code key encryption methods of information.The encryption method has used binary system and nanometer
The composite signal of material.
Encryption method provided by the present invention, includes the following steps:
1) 4 bit binary numbers are converted by each of 0-9 number, is divided into the equal binary system of two units
Number converts 6 bit binary numbers for each of A-Z letter, is divided into the equal binary digit of two units；
Wherein, inadequate 4 bit binary number in each of 0-9 number, adds 0 before former binary digit, until reaching 4 two
Binary digits are extremely；Inadequate 6 bit binary number, adds 0 before former binary digit in each of A-Z letter, until
Reaching 6 bit binary numbers is extremely；
2) according to step 1), corresponding two groups of binary digits are converted by information to be encrypted, one group is used as binary system
Password one, another group as binary coded two；
3) the rare earth up-conversion luminescence nanomaterial of magnetic metal ion modification and compound are reacted, obtains reaction gained
Object surveys its light (L), hot (H) and magnetic (M) signal intensity, if signal intensity is positive change, remembers that the signal is 1, if signal becomes
The variation of constant or negative sense is turned to, then remembers that the signal is 0, wherein the compound is that can modify with the magnetic metal ion
The substance of complexing and/or redox reaction occurs for the magnetic metal ion on the surface of rare earth up-conversion luminescence nanomaterial.
4) by binary coded one and binary coded two in step 2) with light (L), hot (H) or the magnetic in step 3)
(M) signal intensity, compound establishes corresponding relationship, respectively obtains code key one and code key two to get encrypted password is arrived.
In above-mentioned encryption method, in step 3), the rare earth up-conversion luminescence nanomaterial of the magnetic metal ion modification
Middle magnetic metal ion is selected from Fe3+, Co3+And Ni3+At least one of, which has oxidisability.
Rare earth up-conversion luminescence nanomaterial in the rare earth up-conversion luminescence nanomaterial of the magnetic metal ion modification
The fluoride salt that is formed selected from doped chemical and rare earth element, oxide, oxyfluoride, fluorine halide, phosphate, vanadate and
At least one of tungstates,
Wherein, the rare earth element is selected from lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium
(Eu), in gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), scandium (Sc) and yttrium (Y)
At least one；
The doped chemical is selected from erbium (Er), holmium (Ho), thulium (Tm), ytterbium (Yb), erbium (Er), ytterbium (Yb), holmium (Ho), ytterbium
(Yb) and at least one of thulium (Tm).
In addition, can also contain lithium (Li in the fluoride salt, phosphate, vanadate or tungstates+), sodium (Na+), potassium (K+), rubidium (Rb+), caesium (Cs+), beryllium (Be2+), magnesium (Mg2+), calcium (Ca2+), strontium (Sr2+), barium (Ba2+), boron (B3+), aluminium (Al3+), gallium
(Ga3+), indium (In3+), tin (Sn2+), lead (Pb2+) and ammonium (NH4 +) at least one of cation.
Further, rare earth up-conversion luminescence is received in the rare earth up-conversion luminescence nanomaterial of the magnetic metal ion modification
Rice material can also adulterate other metallic elements, such as manganese (Mn), lithium (Li), zinc (Zn), chromium (Cr), lead (Pb), bismuth (Bi).
The rare earth up-conversion luminescence nanomaterial of magnetic metal ion modification can be nano particle and/or nanometer rods,
The diameter of the nano particle is 5nm -999nm, and the length of the nanometer rods is 6nm -20 μm, and diameter is 5nm -999nm.
The rare earth up-conversion luminescence nanomaterial of magnetic metal ion modification concretely Fe3+The NaLuF of modification4:
Yb, Er, Gd nano particle or Ni3+The NaGdF of modification4: Yb, Er, Tm nano particle, wherein the Fe3+The NaLuF of modification4:
The mass fraction of Gd is 30-50% in Yb, Er, Gd nano particle, concretely 40%；The Ni3+The NaGdF of modification4:Yb,
The mass fraction of Gd is 70-90% in Er, Tm nano particle, concretely 80%.
The rare earth up-conversion luminescence nanomaterial of the magnetic metal ion modification can be prepared by a conventional method, such as solid phase
Method, liquid phase method, vapor phase method etc..
The compound specifically can be selected from hydroquinone (HQ), ascorbic acid (AA), hydrogen peroxide (H2O2), iron ion (Fe3 +) and ferrous the complex ion ([Fe (CN) of six cyanogen conjunction6]4-)。
By test it can be seen that: when hydroquinone (HQ) is added, it is described reaction gains light (L), heat (H) and
Magnetic (M) signal intensity is positive change, is denoted as 1,1 and 1, i.e. hydroquinone (HQ) corresponding L=1, H=1 and M=1 respectively；
Similarly, ascorbic acid (AA) corresponding L=1, H=0 and M=0；Hydrogen peroxide (H2O2) correspond to L=0, H=0 and M=0；
Iron ion (Fe3+) correspond to L=0, H=0 and M=1；Six cyanogen close ferrous complex ion ([Fe (CN)6]4-) correspond to L=0, H=1 and M
=1.
In above-mentioned encryption method, in step 3), the rare earth up-conversion luminescence nanomaterial of the magnetic metal ion modification
It is to exist in form of an aqueous solutions, molar concentration 0.1mM-10mM, the compound is in the form of aqueous solution or solid
In the presence of, in the presence of the compound is as an aqueous solution, molar concentration 5mM-50mM.
When the concentration of the compound is greater than 5mM, the trend of signal intensity is constant, and only the intensity of signal has lesser
Variation.
The rare earth up-conversion luminescence nanomaterial of the magnetic metal ion modification and the volume ratio of the compound are specific
It can be 1:(0.2-5).
The reaction temperature of the reaction is 15-40 DEG C, and the reaction time is not less than 5min, concretely 5-60min.
The compound specifically can be first placed on plate by the reaction, then the magnetic metal ion is added dropwise thereto and repairs
The rare earth up-conversion luminescence nanomaterial of decorations is reacted, the plate be can independently accommodate solid or liquid plane tabular it is solid
The thickness of body, the plane tabular solid is not less than 0.5cm.
In above-mentioned encryption method, in step 3), described its light (L) of survey, hot (H) and magnetic (M) signal intensity can specifically pass through
Following method carries out: irradiating the reaction gains with 980nm near-infrared laser, and carries out quasi- color processing, obtains light (L) variation
Signal, if hot spot, then light (L) variable signal is positive change, otherwise (i.e. blank), then light (L) variable signal be it is constant or
Negative sense variation；
The reaction gains are irradiated with 808nm near-infrared laser, and carry out quasi- color processing, obtain hot (H) variable signal,
If hot spot, then hot (H) variable signal is positive change, otherwise (i.e. blank), then hot (H) variable signal is that constant or negative sense becomes
Change；
Imaging is carried out to the reaction gains with magnetic resonance imaging, and carries out quasi- color processing, obtains magnetic (M) variation
Signal, if hot spot, then magnetic (M) variable signal is positive change, otherwise (i.e. blank), then magnetic (M) variable signal be it is constant or
Negative sense variation.
Wherein, the quasi- color processing is to carry out colors countenance by grayscale image of the Image J software to imaging, make signal compared with
Strong and weaker place shows different colors, to enhance signal side and weaker square contrast strongly.
In above-mentioned encryption method, in step 3), the forward signal variation of the light (L), hot (H) and magnetic (M) is respectively glimmering
Luminous intensity enhancing, the enhancing of temperature raised degree height and magnetic resonance signal；The light (L), heat (H) and magnetic (M) reversed letter
Number variation is respectively that fluorescence intensity weakens, the raised degree of temperature is low and the decrease of magnetic resonance signal, wherein the temperature increases
Degree height and the raised degree of temperature it is low be for the raised temperature of water, much higher than water think temperature increase
Degree it is high, approximately think that the raised degree of temperature is low with water.
The positive change and negative sense variation are a pair of of inverse change of light, heat or magnetic signal: the enhancing and decrease of light, temperature
Spend that elevated-levels height is low with elevated-levels or the enhancing and decrease of magnetic resonance signal.
The signal intensity of the light (L), hot (H) and magnetic (M) is the constant production for referring to no forward signal and negative-going signal
Raw or forward signal or negative-going signal generate weak, i.e. the ratio between the variable quantity of forward signal and forward signal is born less than 1%
To the ratio between the variable quantity of signal and negative-going signal less than 1%.
In above-mentioned encryption method, in step 4), the corresponding relationship can be established by the following method: by binary coded one
Light (L) under the corresponding compound, hot (H) and the corresponding type of magnetic (M) and sequentially i.e. are converted into binary coded two
It can.
The light (L), hot (H) and the corresponding type of magnetic (M) are selected from photo-thermal composite signal (L-H), optomagnetic composite signal (L-
M), at least one of pyromagnetic composite signal (H-M) or photo-thermal magnetic composite signal (L-H-M).
The light (L), hot (H) and the corresponding sequence of magnetic (M) selected from (L, H), (H, L), (L, M), (M, L), (H, M), (M,
H), at least one of (L, M, H), (L, H, M), (H, L, M), (H, M, L), (M, H, L) and (M, L, H).
In above-mentioned encryption method, in step 4), the decryption of the encrypted password can be carried out as follows: by institute
It states described corresponding to code key one and code key two (type and its corresponding sequence containing light (L), hot (H) and magnetic (M) signal)
Compound is reacted with the rare earth up-conversion luminescence nanomaterial that the magnetic metal ion is modified, and obtains reaction gains,
Its light (L), hot (H) and magnetic (M) signal intensity are surveyed, if signal intensity is positive change, remembers that the signal is 1, if signal intensity
Change for constant or negative sense, then remembers that the signal is 0, so that binary digit is converted by the code key one and code key two, point
Binary coded one and binary coded two are not obtained, finally convert number for binary coded one and binary coded two
And/or letter to get arrive prime information.
Information (number and/or letter) is converted binary digit by the present invention, changes two by code key one and code key two
The order of binary digits replaces number or letter using the specific compound.
Material used in the method for the present invention is relatively simple, and can reach the effect of encryption by multi-signal simultaneously
Fruit.Since double code key encryptions there are two groups of code keys, may be implemented, it is more advantageous to the secrecy of information.
Detailed description of the invention
Fig. 1 is each compound solution and corresponding signal intensity in embodiment.
Fig. 2 is digital (0-9) each in the present invention corresponding binary digit.
Fig. 3 is digital information section, digital information section, compound name, the code key by encryption of unencryption in embodiment 1
One and code key two.
Fig. 4 is being added on the rare earth of magnetic metal ion modification under the irradiation of 980nm near-infrared laser in embodiment 1
Encrypted digital information section photo after converting Illuminant nanometer material.
Fig. 5 is being added on the rare earth of magnetic metal ion modification under the irradiation of 808nm near-infrared laser in embodiment 1
Encrypted digital information section photo after converting Illuminant nanometer material.
Fig. 6 is in embodiment 1 in T1Turn on the rare earth that magnetic metal ion modification is added under magnetic resonance imaging mode
Encrypted digital information section photo after changing light nano material.
Fig. 7 is the password solved according to code key one, the password solved according to code key two, the number decrypted in embodiment 1
The comparison picture of word message segment, original code and former digital information section.
Fig. 8 is alphabetical (A-Z) each in the present invention corresponding binary digit.
Fig. 9 is alphabetical information section, alphabetical information section, compound name, the code key by encryption of unencryption in embodiment 2
One and code key two.
Figure 10 is the addition oxidisability magnetic metal ion modification under the irradiation of 980nm near-infrared laser in embodiment 2
Rare earth up-conversion luminescence nanomaterial after encryption letter message segment photo.
Figure 11 is the addition oxidisability magnetic metal ion modification under the irradiation of 808nm near-infrared laser in embodiment 2
Rare earth up-conversion luminescence nanomaterial after encryption letter message segment photo.
Figure 12 is in embodiment 2 in T1Addition oxidisability magnetic metal ion under magnetic resonance imaging mode is modified dilute
Encryption letter message segment photo after native up-conversion luminescence nanomaterial.
Figure 13 is the password solved according to code key one, the password solved according to code key two, the word decrypted in embodiment 2
The comparison picture of female message segment, original code and former alphabetical information section.
Specific embodiment
Method of the invention is illustrated below by specific embodiment, but the present invention is not limited thereto.
Experimental method described in following embodiments is unless otherwise specified conventional method；The reagent and material, such as
Without specified otherwise, commercially obtain.
NaLuF containing 40%Gd used in following embodiments 14: the nano material of Yb, Er, Gd are according to following
What method was prepared: firstly, by 0.40mmol LuCl3, 0.40mmol GdCl3, 0.18mmol YbCl3And 0.02mmol
ErCl3It is added in the there-necked flask of 100mL, adds 6mL oleic acid and 15mL octadecylene.Then it under the protection of nitrogen, will mix
Conjunction solution, which is heated to 120 DEG C, is completely dissolved rare earth-iron-boron, after forming transparent clear solution, stops heating, is cooled to room
Temperature.Later, 6mL NaOH (2.5mmol) and NH are added into solution4The methanol solution of F (4mmol) is heated under nitrogen protection
80 DEG C are removed methanol, after about 30min, are warming up to 120 DEG C and are vacuumized water removal deoxygenation, finally react 1h under nitrogen atmosphere.Reaction knot
Then suitable hexamethylene and ethyl alcohol is added in Shu Hou, cooled to room temperature, supernatant is removed in centrifuge separation；Add into solid
Enter ultrasonic disperse after appropriate hexamethylene, after adding ethanol in proper amount, then is centrifugated；Above step is repeated, continues to use hexamethylene
With ethanol washing several times after, the NaLuF of 40%Gd can be obtained4: nano material (nano particle, the diameter 7- of Yb, Er, Gd
9nm)。
Fe used in following embodiments 13+The NaLuF containing 40%Gd of modification4: the nano material of Yb, Er, Gd be by
It is prepared according to following method:
By the NaLuF containing 40%Gd4: the nanomaterial solution and NOBF of Yb, Er, Gd4Ultrasound is mixed with mass ratio 1:1
Processing, the temperature of processing are 20 DEG C, time 5min, wash away the oil-soluble ligand on surface, then use CH respectively2Cl2With anhydrous second
Alcohol washs twice, is redispersed in the deionized water for the sodium citrate that mass fraction is 20%, the stir process 1h at 20 DEG C.Through
After crossing citric acid treatment, the FeCl of isometric 0.5mM is added3Solution continues to stir 1h, and centrifuge separation is washed with deionized water
It washs three times, obtains Fe3+The nano material NaLuF containing 40%Gd of modification4:Yb,Er,Gd。
NaGdF containing 80%Gd used in following embodiments 24: the nano material of Yb, Er, Tm are according to following
What method was prepared: taking 1.5mL deionized water, 5mL oleic acid, 10mL ethyl alcohol stirs in 100mL flask, is added
0.3g NaOH is stirred to being completely dissolved；Then GdCl is added3(0.80mmol), YbCl3(0.16mmol), ErCl3
(0.02mmol) and TmCl3(0.02mmol) is sufficiently stirred；NaF (4mmol) is dissolved in 2mL deionized water, and is delayed
Slowly it is added in above-mentioned solution, autoclave, 200 DEG C of holding 10h is transferred to after stir about 15min；Ethyl alcohol, hexamethylene are used after cooling
Alkane centrifugation, washing, sample is sealed in hexamethylene, spare, obtains the NaGdF containing 80%Gd4: the nanometer of Yb, Er, Tm
Material (nano particle, diameter 20-25nm).
Ni used in following embodiments 23+The NaGdF containing 80%Gd of modification4: the nano material of Yb, Er, Tm is
It is prepared by the following method: by NaLuF4: it is 20% citric acid that the nano material of Yb, Er, Tm, which are dispersed in mass fraction,
In the deionized water of sodium, the stir process 1h at 20 DEG C.After citric acid treatment, the NiCl of isometric 0.5mM is added3,
Continue to stir 1h, centrifuge separation is washed with deionized three times, obtains Ni3+The NaGdF containing 80%Gd of modification4:Yb,Er,
The nano material of Tm.
Fig. 1 draws obtain by the following method:
The Fe for being 1mM by molar concentration3+The NaLuF of the 40%Gd of modification4: the aqueous solution of the nano particle of Yb, Er, Gd point
It is not the aqueous solution of hydroquinone (HQ), the aqueous solution of ascorbic acid (AA), hydrogen peroxide (H of 5mM with molar concentration2O2)
Aqueous solution, iron ion (Fe3+) aqueous solution and six cyanogen close ferrous complex ion ([Fe (CN)6]4-) aqueous solution be with volume ratio
1:1 reacts 5min at being mixed in 20 DEG C on plate of the thickness not less than 0.5cm, respectively with 980nm near-infrared laser, 808nm
Near-infrared laser and T1Picture is shot under magnetic resonance imaging mode, after quasi- color processing, measures each reaction gains respectively
The signal intensity of light (L), heat (H) and magnetic (M), if there is hot spot, signal intensity is positive change, remembers that the signal is 1；If not
There is hot spot, then signal intensity is that constant or negative sense changes, then remembers that the signal is 0, obtain Fig. 1；
Embodiment 1, based on nano material and binary novel double code key encryption methods with composite signal:
1, encrypt part: first listing the digital information section for needing to encrypt is 1234, and digital information section 1234 is converted by Fig. 2
For two groups of binary digits, as shown in figure 3, respectively binary coded one: 00 00 00 01, binary coded two: 01 10
11 00, convert corresponding leuco-compounds solution for binary coded one and binary coded two further according to Fig. 1, i.e., two into
Compound used in password one processed and corresponding code key one are as shown in figure 3, compound used in binary coded two and right
The code key two answered is as shown in figure 3, encrypt the digital information section that needs encrypt for 1234.
2, part is cracked: the Fe for being 1mM by molar concentration3+The NaLuF of the 40%Gd of modification4: the nanometer of Yb, Er, Gd
The aqueous solution of grain is the hydrogen peroxide (H of 5mM with molar concentration respectively2O2) aqueous solution, iron ion (Fe3+) aqueous solution and six
Cyanogen closes ferrous complex ion ([Fe (CN)6]4-) aqueous solution with volume ratio be 1:1 thickness not less than 0.5cm plate on mix
Together in 5min is reacted at 20 DEG C, respectively with 980nm near-infrared laser, 808nm near-infrared laser and T1Under magnetic resonance imaging mode
Picture is shot, by quasi- color processing, the place for keeping signal strong and weak shows different colors, so that it is stronger to enhance signal
The local contrast with weaker side measures the light (L) of each reaction gains, the signal intensity of heat (H) and magnetic (M) respectively, surveys
Test result is respectively such as Fig. 4, Fig. 5 and Fig. 6.To convert binary digit for the code key one and code key two, respectively obtain
Binary coded one and binary coded two, finally number is converted by binary coded one and binary coded two to get arriving
Prime information.Corresponding decrypted result is as shown in Figure 7.
Embodiment 2, based on nano material and binary novel double code key encryption methods with composite signal:
1, encrypt part: first listing the alphabetical information section for needing to encrypt is ZHOU, is ZHOU by Fig. 8 turns by alphabetical information section
Turn to two groups of binary digits, as shown in figure 9, respectively binary coded one and binary coded two, further according to Fig. 1 by two into
Password one processed and binary coded two is converted into corresponding leuco-compounds solution, i.e., compound used in binary coded one
With corresponding code key one as shown in figure 9, compound used in binary coded two and corresponding code key two are as shown in figure 9, i.e.
It is that ZHOU is encrypted to the alphabetical information section that needs encrypt.
2, part is cracked: the Ni for being 1mM by molar concentration3+The NaGdF containing 80%Gd of modification4: the water of Yb, Er, Tm
Solution is aqueous solution, the hydrogen peroxide of the aqueous solution of the hydroquinone (HQ) of 5mM, ascorbic acid (AA) with molar concentration respectively
(H2O2) aqueous solution and six cyanogen close ferrous complex ion ([Fe (CN)6]4-) aqueous solution with volume ratio be 1:1 it is not small in thickness
5min is reacted in being mixed at 20 DEG C on the plate of 0.5cm, respectively with 980nm near-infrared laser, 808nm near-infrared laser and T1
Picture is shot under magnetic resonance imaging mode, after quasi- color processing, measures light (L), hot (H) and the magnetic of each reaction gains respectively
(M) signal intensity, test result is respectively such as Figure 10, Figure 11 and Figure 12.To convert the code key one and code key two to
Binary digit respectively obtains binary coded one and binary coded two, finally by binary coded one and binary coded
Two are converted into letter to get prime information is arrived.Corresponding decrypted result is as shown in figure 13.
Claims (10)
1. a kind of double code key encryption methods of information, include the following steps:
1) 4 bit binary numbers are converted by each of 0-9 number, is divided into the equal binary number of two units
Word converts 6 bit binary numbers for each of A-Z letter, is divided into the equal binary digit of two units；
2) according to step 1), corresponding two groups of binary digits are converted by information to be encrypted, one group as binary coded
One, another group as binary coded two；
3) the rare earth up-conversion luminescence nanomaterial of magnetic metal ion modification and compound are reacted, obtain reaction gains,
Its light L, hot H and magnetic M signal intensity are surveyed, if signal intensity is positive change, remembers that the signal is 1, if signal intensity is negative sense
Variation is constant, then remembers that the signal is 0, wherein the compound is to convert on the rare earth modified with the magnetic metal ion
The substance of complexing and/or redox reaction occurs for the magnetic metal ion on the surface of Illuminant nanometer material；
4) signal by binary coded one and binary coded two in step 2) with light L, hot H or magnetic M in step 3)
Variation, compound establish corresponding relationship, respectively obtain code key one and code key two to get encrypted password is arrived.
2. encryption method according to claim 1, it is characterised in that: in step 3), the magnetic metal ion modification
Magnetic metal ion is selected from Fe in rare earth up-conversion luminescence nanomaterial3+, Co3+And Ni3+At least one of；
Rare earth up-conversion luminescence nanomaterial is selected from the rare earth up-conversion luminescence nanomaterial of the magnetic metal ion modification
Fluoride salt, oxide, oxyfluoride, fluorine halide, phosphate, vanadate and the wolframic acid that doped chemical and rare earth element are formed
At least one of salt；
Wherein, the rare earth element is selected from lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium and yttrium
At least one of；
The doped chemical is selected from least one of erbium, holmium, thulium, ytterbium, erbium, ytterbium, holmium, ytterbium and thulium.
3. encryption method according to claim 2, it is characterised in that: the fluoride salt, phosphate, vanadate or wolframic acid
It is cationic containing at least one of lithium, sodium, potassium, caesium, beryllium, magnesium, calcium, strontium, barium, boron, aluminium, gallium, indium, tin, lead and ammonium in salt；
It is mixed in rare earth up-conversion luminescence nanomaterial in the rare earth up-conversion luminescence nanomaterial of the magnetic metal ion modification
At least one of miscellaneous manganese, lithium, zinc, chromium, lead and bismuth element.
4. encryption method according to claim 1, it is characterised in that: in step 3), the magnetic metal ion modification
Rare earth up-conversion luminescence nanomaterial is nano particle and/or nanometer rods, and the diameter of the nano particle is 5nm -999nm, institute
The length for stating nanometer rods is 6nm -20 μm, and diameter is 5nm -999nm.
5. encryption method according to claim 1, it is characterised in that: converted on the rare earth of the magnetic metal ion modification
Illuminant nanometer material is Fe3+The NaLuF of modification4: Yb, Er, Gd nano particle or Ni3+The NaGdF of modification4: Yb, Er, Tm nanometers
Particle；
Wherein, the Fe3+The NaLuF of modification4: the mass fraction of Gd is 30-50% in Yb, Er, Gd nano particle；The Ni3+
The NaGdF of modification4: the mass fraction of Gd is 70-90% in Yb, Er, Tm nano particle.
6. encryption method according to claim 1, it is characterised in that: the compound be selected from hydroquinone, ascorbic acid,
Hydrogen peroxide, iron ion and six cyanogen close ferrous complex ion；
The signal intensity of the hydroquinone: light L=1, hot H=1 and magnetic M=1；
The signal intensity of the ascorbic acid: light L=1, hot H=0 and magnetic M=0；
The signal intensity of the hydrogen peroxide: light L=0, hot H=0 and magnetic M=0；
The signal intensity of the iron ion: light L=0, hot H=0 and magnetic M=1；
Six cyanogen closes the signal intensity of ferrous complex ion: light L=0, hot H=1 and magnetic M=1.
7. encryption method according to claim 1, it is characterised in that: in step 3), the magnetic metal ion modification
Rare earth up-conversion luminescence nanomaterial is to exist in form of an aqueous solutions, molar concentration 0.1mM-10mM；
The compound is existed in the form of aqueous solution or solid, in the presence of the compound is as an aqueous solution,
Molar concentration is 5mM-50mM；
The rare earth up-conversion luminescence nanomaterial of the magnetic metal ion modification and the volume ratio of the compound are 1:(0.2-
5)；
The reaction temperature of the reaction is 15-40 DEG C, and the reaction time is not less than 5min, specially 5-60min.
8. encryption method according to claim 1, it is characterised in that: in step 3), its light of survey L, hot H and magnetic M letter
Number variation carries out by the following method: irradiating the reaction gains with 980nm near-infrared laser, and carries out quasi- color processing, obtains
To light L variable signal, if hot spot, then light L variable signal is positive change, conversely, then light L variable signal is constant or negative sense
Variation；
The reaction gains are irradiated with 808nm near-infrared laser, and carry out quasi- color processing, hot H variable signal are obtained, if light
Spot, then hot H variable signal is positive change, conversely, then hot H variable signal is that constant or negative sense changes；
Imaging is carried out to the reaction gains with magnetic resonance imaging, and carries out quasi- color processing, obtains magnetic M variable signal,
If hot spot, then magnetic M variable signal is positive change, conversely, then magnetic M variable signal is that constant or negative sense changes.
9. encryption method according to claim 1, it is characterised in that: in step 4), the corresponding relationship passes through such as lower section
Method is established: light L, hot H and magnetic M that binary coded one and binary coded two are converted under the corresponding compound are corresponded to
Type and sequence；
The smooth L, hot H and the corresponding type of magnetic M are selected from photo-thermal composite signal LH, optomagnetic composite signal LM, pyromagnetic composite signal
At least one of HM and photo-thermal magnetic composite signal LHM；
The smooth L, hot H and the corresponding sequence of magnetic M are selected from LH, HL, LM, ML, HM, MH, LMH, LHM, HLM, HML, MHL and MLH
At least one of.
10. encryption method according to claim 1, it is characterised in that: in step 4), to the solution of the encrypted password
It is close to carry out as follows: the compound corresponding to the code key one and code key two and the magnetic metal ion are modified
Rare earth up-conversion luminescence nanomaterial reacted, obtain reaction gains, survey its light L, hot H and magnetic M signal intensity, if letter
Number variation is positive change, then remembers that the signal is 1, if signal intensity is that constant or negative sense changes, remember that the signal is 0, by institute
It states code key one and code key two is converted into binary digit, respectively obtain binary coded one and binary coded two, finally will
Binary coded one and binary coded two are converted into number and/or letter to get prime information is arrived.
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