Encryption yog dab tsi?

Nyob rau hauv kev ruaj ntseg cov ntaub ntawv, encryption yog ib qho tseem ceeb txheej txheem los tiv thaiv cov ntaub ntawv tsis pub lwm tus paub thiab ncaj ncees. Raws li kev siv thev naus laus zis, nws dhau los ua qhov tseem ceeb kom nkag siab tias encryption yog dab tsi thiab nws ua haujlwm li cas. Daim ntawv dawb no yog lub hom phiaj los muab kev saib tob tob ntawm kev encryption, nws lub hom phiaj thiab nws qhov tseem ceeb hauv kev tiv thaiv cov ntaub ntawv rhiab heev. nyob rau hauv lub hnub nyoog digital. Los ntawm cov hauv paus ntsiab lus mus rau cov txheej txheem siab tshaj plaws thiab cov txheej txheem, peb yuav tshawb xyuas cov ntsiab lus ntawm encryption thiab nws daim ntawv thov hauv ntau qhov chaw, muab kev nkag siab zoo ntawm cov cuab yeej kev ruaj ntseg tseem ceeb no.

1. Taw qhia txog kev encryption: Cov ntsiab lus tseem ceeb thiab cov ntsiab lus

Encryption yog txheej txheem siv los tiv thaiv cov ntaub ntawv rhiab, kom ntseeg tau tias tsuas yog cov neeg tau txais kev tso cai tuaj yeem nkag mus tau. Hauv seem no, peb yuav qhia txog cov ntsiab lus tseem ceeb thiab cov ntsiab lus ntsig txog encryption, tso cai rau koj kom nkag siab zoo dua nws ua haujlwm li cas thiab vim li cas nws tseem ceeb hauv kev ruaj ntseg cov ntaub ntawv.

Ib qho ntawm cov ntsiab lus tseem ceeb hauv kev encryption yog cryptographic algorithm. Qhov algorithm no yog cov kauj ruam ntawm kev ua lej tsim los hloov cov ntaub ntawv nyeem tau rau hauv cov ntawv nyeem tsis tau, hu ua ciphertext. Cov algorithm siv yuav tsum muaj zog thiab tiv taus txhua qhov kev sim decrypt nws, yog li ua kom cov ntaub ntawv tsis pub lwm tus paub.

Lwm lo lus tseem ceeb hauv encryption yog tus yuam sij cryptographic. Tus yuam sij cryptographic yog tus nqi zais cia siv los ntawm algorithm los encrypt thiab decrypt cov ntaub ntawv. Symmetric encryption siv tib tus yuam sij rau ob qho kev ua haujlwm, thaum asymmetric encryption siv tus yuam sij pej xeem los encrypt thiab tus yuam sij ntiag tug los txiav txim siab. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias lub zog ntawm qhov encryption feem ntau nyob ntawm kev ruaj ntseg ntawm tus yuam sij siv.

2. Hom kev encryption: Kev tshuaj xyuas kom meej

Hauv ntiaj teb Hauv kev ruaj ntseg hauv computer, encryption yog ib qho tseem ceeb los tiv thaiv cov ntaub ntawv rhiab heev. Muaj ntau hom kev encryption uas siv los lav cov ntaub ntawv tsis pub lwm tus paub. Nyob rau hauv qhov tob saib no, peb yuav delve rau hauv ntau hom encryption thiab tshuaj xyuas seb lawv ua haujlwm li cas.

- Symmetric encryption: Hom kev encryption no siv ib tus yuam sij rau ob qho tib si encrypt thiab decrypt cov ntaub ntawv. Nws yog ib txoj hauv kev nrawm thiab ua tau zoo, tab sis nws muaj qhov tsis zoo uas tus yuam sij yuav tsum tau sib koom nyob rau hauv txoj kev nyab xeeb nruab nrab ntawm tus xa thiab tus txais. Qee qhov kev siv symmetric encryption algorithms suav nrog AES (Advanced Encryption Standard) thiab DES (Data Encryption Standard).

- Asymmetric encryption: Tsis zoo li symmetric encryption, nyob rau hauv hom encryption no siv ob tus yuam sij sib txawv: tus yuam sij pej xeem thiab tus yuam sij ntiag tug. Tus yuam sij pej xeem yog siv los encrypt cov ntaub ntawv, thaum tus yuam sij ntiag tug yog siv los decrypt nws. Qhov no tso cai rau kev sib txuas lus ruaj ntseg yam tsis tas yuav qhia tus yuam sij zais cia ntawm ob tog. Asymmetric encryption yog dav siv nyob rau hauv kev ruaj ntseg raws tu qauv xws li SSL / TLS.

- Hybrid encryption: Hom kev encryption no sib txuas cov txiaj ntsig zoo ntawm symmetric thiab asymmetric encryption. Hauv qhov system no, tus yuam sij symmetric yog siv los encrypt cov ntaub ntawv, thiab tom qab ntawd, tus yuam sij symmetric yog encrypted siv asymmetric encryption. Qhov no muab kev ruaj ntseg ntau dua, txij li txhua lub sijhawm tsim kev sib txuas lus, tus yuam sij symmetric tshiab raug tsim los encrypt cov ntaub ntawv. Hybrid encryption yog siv nyob rau hauv ntau cov ntaub ntawv kev ruaj ntseg systems, xws li PGP (Zoo nkauj Tsis pub twg paub).

Hauv ntej, encryption plays lub luag haujlwm tseem ceeb hauv kev ruaj ntseg cov ntaub ntawv. Nkag siab txog ntau hom kev encryption thiab lawv ua haujlwm li cas yog qhov tseem ceeb los xyuas kom meej cov ntaub ntawv tsis pub lwm tus paub. Los ntawm symmetric encryption mus rau hybrid encryption, txhua txoj kev muaj nws tus yam ntxwv tshwj xeeb thiab kev siv. Los ntawm kev siv qhov tsim nyog encryption hauv txhua qhov xwm txheej, peb tuaj yeem tiv thaiv peb cov ntaub ntawv zoo.

3. Symmetric thiab asymmetric ciphers: Qhov sib txawv thiab kev siv

Symmetric thiab asymmetric ciphers yog ob hom cryptographic algorithms siv los tiv thaiv cov ntaub ntawv xa mus hauv tes hauj lwm lossis khaws cia hauv cov tshuab. Qhov sib txawv tseem ceeb ntawm lawv yog nyob rau hauv txoj kev uas tus yuam sij encryption raug tuav. Hauv symmetric encryptions, ib tus yuam sij zais cia yog siv rau ob qho tib si encryption thiab decryption ntawm cov ntaub ntawv. Ntawm qhov tod tes, nyob rau hauv asymmetric encryptions, siv ob lub yuam sij sib txawv, ib qho pej xeem thiab ib tus kheej, los ua cov haujlwm no.

Qhov txiaj ntsig tseem ceeb ntawm symmetric encryption yog nws qhov nrawm thiab ua haujlwm tau zoo, txij li cov txheej txheem encryption thiab decryption yog yooj yim dua los ntawm kev siv tib tus yuam sij. Ntawm qhov tod tes, asymmetric encryptions muaj kev ruaj ntseg ntau dua, txij li tus yuam sij ntiag tug tsis tau qhia lossis qhia tawm, yog li lav qhov tsis pub lwm tus paub ntawm cov ntaub ntawv. Tsis tas li ntawd, cov algorithms no tso cai rau kev lees paub ntawm cov tog neeg koom nrog hauv kev xa cov ntaub ntawv.

Sai li sai tau rau daim ntawv thov, symmetric ciphers yog zoo tagnrho rau encrypting loj ntim ntawm cov ntaub ntawv, xws li cov ntaub ntawv los yog nyuaj drives, raws li lawv muab kev ua tau zoo. Ntawm qhov tod tes, asymmetric ciphers tau siv dav hauv kev lees paub ntawm cov neeg siv khoom thiab cov kev pabcuam, nrog rau kev kos npe digital ntawm cov ntaub ntawv, lav lawv txoj kev ncaj ncees thiab kev siv tau. Tsis tas li ntawd, cov algorithms no yog qhov tseem ceeb hauv kev siv cov txheej txheem kev ruaj ntseg xws li SSL / TLS hauv web browsing.

4. Public key encryption: Nws ua haujlwm li cas thiab nws qhov zoo yog dab tsi?

Public key encryption yog ib txoj kev encryption uas siv ob yam sib txawv, ib tug pej xeem thiab ib tug ntiag tug. Cov txheej txheem no siv lej algorithms los encrypt thiab decrypt cov lus, kom ntseeg tau qhov tsis pub lwm tus paub thiab kev ncaj ncees ntawm cov ntaub ntawv xa mus. Tom ntej no, peb yuav piav qhia seb hom kev encryption no ua haujlwm li cas thiab nws qhov txiaj ntsig tseem ceeb yog dab tsi.

Public key encryption ua haujlwm li cas?
1. Cov cim tseem ceeb: Cov txheej txheem pib los ntawm kev tsim ib khub ntawm cov yuam sij, ib qho pej xeem thiab ib qho ntiag tug. Txhua tus yuam sij yog qhov tshwj xeeb thiab cuam tshuam nrog ib tus neeg lossis qhov chaw.
2. Message encryption: Txhawm rau xa cov lus muaj kev nyab xeeb, tus neeg xa ntawv siv tus neeg txais kev pabcuam pej xeem tus yuam sij los encrypt nws. Qhov no suav nrog kev hloov cov lus qub rau hauv cov cim uas tsis tau nyeem tau rau txhua tus uas tsis muaj tus yuam sij ntiag tug sib xws.
3. Message decryption: Thaum cov lus encrypted mus txog tus neeg txais, lawv siv lawv tus yuam sij ntiag tug los decrypt nws thiab tau txais cov lus qub rov qab. Tsuas yog tus neeg tau txais txiaj ntsig tuaj yeem ua qhov no, vim tsuas yog nws muaj tus yuam sij ntiag tug tsim nyog.

Qhov zoo ntawm public key encryption
- Kev Ruaj Ntseg: Lub ntsiab kom zoo dua ntawm pej xeem tus yuam sij encryption yog tias nws muab kev ruaj ntseg siab. Vim tias cov yuam sij yog qhov tshwj xeeb thiab tsuas yog tus neeg tau txais txiaj ntsig muaj tus yuam sij ntiag tug xav tau los txiav txim siab cov lus, cov ntaub ntawv tseem tsis pub leej twg paub.
- Authenticity: Kev siv cov yuam sij rau pej xeem thiab ntiag tug kuj tso cai rau qhov tseeb ntawm tus neeg xa mus rau qhov tseeb. Los ntawm kev siv tus yuam sij ntiag tug rau digitally kos npe rau cov lus, tus neeg tau txais kev pabcuam tuaj yeem ua kom ntseeg tau tias nws los ntawm tus neeg xav tau lossis qhov chaw, zam kev nyiag tus kheej.
- Scalability: Public key encryption yog scalable heev, txhais tau tias nws tuaj yeem siv rau hauv cov tshuab loj xws li khoos phis tawj lossis lub vev xaib. Qhov no ua rau nws muaj ntau yam kev daws teeb meem rau kev tiv thaiv cov ntaub ntawv hauv ntau qhov chaw thiab cov xwm txheej.

5. Private Key Encryption: Basics thiab Common Uses

Private key encryption yog ib txoj kev cryptographic siv los tiv thaiv cov ntaub ntawv tsis pub lwm tus paub. Lub tswv yim tom qab cov txheej txheem no yog siv tus yuam sij zais zais rau encrypt thiab decrypt cov ntaub ntawv. Tsis zoo li pej xeem tus yuam sij encryption, qhov twg ib tus yuam sij yog siv rau kev encryption thiab lwm yam rau decryption, nyob rau hauv private key encryption tib tus yuam sij yog siv rau ob qho tib si txheej txheem.

Private key encryption feem ntau yog siv rau hauv cov ntawv thov uas ceev thiab kev ua haujlwm tseem ceeb, xws li kev sib txuas lus ruaj ntseg ntawm ob tog. Qee qhov kev siv ntawm cov qauv no suav nrog kev tiv thaiv cov ntaub ntawv rhiab xws li passwords, cov ntaub ntawv nyiaj txiag, thiab cov lus ntiag tug. Nws kuj yog siv rau hauv operating systems thiab cov ntawv thov uas yuav tsum tau khaws cov ntaub ntawv kom ruaj ntseg, nrog rau hauv kev lag luam e-lag luam thiab kev lag luam online.

Muaj ob peb qhov tseem ceeb encryption algorithms uas tau siv niaj hnub no. Qee qhov nrov tshaj plaws suav nrog symmetric encryption algorithm DES (Data Encryption Standard), AES (Advanced Encryption Standard), thiab asymmetric encryption algorithm RSA. Txhua qhov ntawm cov algorithms no muaj nws tus yam ntxwv thiab qib kev ruaj ntseg, yog li nws yog ib qho tseem ceeb uas yuav tau xaiv qhov tsim nyog tshaj plaws raws li qhov tshwj xeeb kev ruaj ntseg ntawm txhua rooj plaub.

6. Nrov tshaj plaws Encryption Algorithms: Kev Ua Haujlwm thiab Lub Zog

Encryption algorithms ua lub luag haujlwm tseem ceeb hauv kev ruaj ntseg cov ntaub ntawv. Hauv tsab xov xwm no, peb yuav tshawb txog qhov nrov tshaj plaws encryption algorithms los ntawm kev mus kom ze thiab txheeb xyuas lawv lub zog.

1. AES (Advanced Encryption Standard): Qhov no symmetric encryption algorithm yog suav hais tias yog ib qho ntawm cov muaj zog tshaj plaws thiab siv dav. Nws siv 128-ntsis thaiv thiab 128, 192, lossis 256-ntsis yuam sij. Lub zog ntawm AES yog nyob rau hauv nws cov encryption ceev, tsis kam mus rau brute quab yuam tawm tsam, thiab nws txais yuav los ntawm cov koom haum thoob ntiaj teb.

2. RSA: Tsis zoo li AES, RSA yog ib qho asymmetric encryption algorithm uas siv ob lub yuam sij (public thiab ntiag tug). Nws yog dav siv rau kev tiv thaiv cov ntaub ntawv hauv kev siv xws li kev sib pauv tseem ceeb, kos npe digital thiab authentication. Lub zog ntawm RSA nyob rau hauv kev sib piv nyuaj ntawm kev tsim cov lej tseem ceeb, uas ua rau tawg qhov tseem ceeb ua haujlwm tsis yooj yim rau cov khoos phis tawj qub.

3. Blowfish: Qhov no symmetric encryption algorithm yog tus cwj pwm los ntawm nws cov versatility thiab efficiency nyob rau hauv encrypting thiab decrypting loj ntim ntawm cov ntaub ntawv. Nws yog qhov sib txawv ntawm qhov tseem ceeb algorithm, uas txhais tau tias nws tuaj yeem txhawb cov yuam sij ntawm 32 txog 448 khoom. Txawm hais tias nws tsis yog dav siv raws li AES lossis RSA, nws tuav lub koob npe zoo hauv kev ruaj ntseg hauv computer.

Hauv luv luv, encryption algorithms xws li AES, RSA, thiab Blowfish ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv cov ntaub ntawv. Txhua tus ntawm lawv muaj cov yam ntxwv tshwj xeeb thiab cov yam ntxwv uas ua rau lawv haum rau kev siv sib txawv. Xaiv qhov tsim nyog tshaj plaws encryption algorithm yuav tsum ua raws li cov kev cai ruaj ntseg thiab cov kev xav tau tshwj xeeb ntawm txhua lub koom haum.

7. Cov txheej txheem encryption niaj hnub no: Cov piv txwv tshwj xeeb

encryption raws tu qauv Tam sim no lawv ua lub luag haujlwm tseem ceeb hauv kev ruaj ntseg ntawm cov ntaub ntawv xa mus los ntawm kev tes hauj lwm thiab cov tshuab. Cov txheej txheem no tso cai rau cov ntaub ntawv tsis pub lwm tus paub los tiv thaiv siv cov txheej txheem encryption thiab lav qhov tsis pub lwm tus paub, kev ncaj ncees thiab qhov tseeb ntawm cov ntaub ntawv.

Ib qho piv txwv tseem ceeb ntawm encryption raws tu qauv yog Thauj Txheej Kev Nyab Xeeb (TLS), dav siv nyob rau hauv lub tshav pob ntawm kev ruaj ntseg Internet kev sib txuas lus. TLS muab cov txheej txheem kev ruaj ntseg ntxiv rau cov txheej txheem kev sib txuas lus hauv qab, xws li HTTP, tso cai rau kev sib txuas ruaj ntseg, encrypted los ntawm cov neeg siv khoom thiab cov servers. Nws feem ntau siv yog nyob rau hauv daim ntawv ntawm HTTPS, qhov twg HTTP raws tu qauv ua ke nrog TLS kom ruaj ntseg kev sib txuas lus hauv web.

Lwm qhov tseem ceeb raws tu qauv yog Cov Plhaub Zoo (SSH), feem ntau yog siv los nkag tej thaj chaw deb daim ntawv rau servers thiab ua cov lus txib kom ruaj ntseg. SSH siv cov txuj ci pov thawj thiab encryption kom ruaj ntseg kev sib txuas thiab tiv thaiv kev nkag tsis tau. Tsis tas li ntawd, SSH tso cai rau cov ntaub ntawv xa mus kom ruaj ntseg ntawm cov txheej txheem. Daim ntawv pov thawj ruaj ntseg (SCP) thiab tseem muab lub peev xwm xa mus rau cov chaw nres nkoj los tsim kev nyab xeeb tunnels.

Cov piv txwv tseem ceeb ntawm cov txheej txheem encryption tsuas yog qee qhov ntawm ntau lwm tus muaj hnub no. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev xaiv cov txheej txheem tsim nyog yuav nyob ntawm qhov kev xav tau kev ruaj ntseg tshwj xeeb thiab ib puag ncig uas nws yuav siv. Los ntawm kev siv cov txheej txheem encryption rau peb cov kev sib txuas lus thiab cov tshuab, peb tuaj yeem ua kom muaj kev tiv thaiv thiab kev ceev ntiag tug ntawm cov ntaub ntawv rhiab heev.

8. Kev nkag mus rau hauv kev sib txuas lus digital: cov cuab yeej thiab kev ntsuas kev nyab xeeb

Hauv lub hnub nyoog digital, kev ruaj ntseg kev sib txuas lus ua lub luag haujlwm tseem ceeb. Encryption tau dhau los ua cov cuab yeej tseem ceeb los lav qhov tsis pub lwm tus paub ntawm cov ntaub ntawv xa tawm hauv Is Taws Nem. Muaj ntau yam cuab yeej thiab kev ntsuas kev nyab xeeb uas peb yuav tsum tau coj mus rau hauv tus account los tiv thaiv peb cov kev sib txuas lus thiab xyuas kom meej cov ntaub ntawv.

Ib qho ntawm cov cuab yeej siv dav tshaj plaws yog Kev Ruaj Ntseg Sockets Layer Protocol (SSL), uas siv cov txheej txheem encryption los tiv thaiv cov ntaub ntawv xa mus ntawm browser thiab server. Cov txheej txheem no yog siv rau ntawm nplooj ntawv web kom muaj kev ruaj ntseg kev sib txuas los ntawm HTTPS raws tu qauv. Nws yog ib qho tseem ceeb kom paub meej tias cov cov web sites Peb tau mus xyuas siv HTTPS thiab muaj daim ntawv pov thawj SSL siv tau los xyuas kom muaj kev sib txuas lus ruaj ntseg.

Ntxiv rau kev siv SSL, nws raug nquahu kom siv cov cuab yeej encryption kawg-rau-kawg, uas lav tias tsuas yog ob tog koom nrog kev sib txuas lus tuaj yeem nyeem cov lus. Qee yam ntawm cov cuab yeej no suav nrog cov ntawv xa ntawv encrypted xws li Signal, Telegram lossis WhatsApp siv lawv cov kev xaiv sib tham zais cia. Cov ntawv thov no siv cov txheej txheem encryption qib siab thiab xyuas kom meej tias tsuas yog tus xa thiab tus neeg txais tuaj yeem txiav txim siab cov lus sib pauv.

9. Quantum cryptography: Lub neej yav tom ntej ntawm encryption

Quantum cryptography yog ib qho kev tshawb fawb tsis tu ncua uas muaj cov kev daws teeb meem tshiab rau kev sib tw ntawm cov ntaub ntawv encryption. Tsis zoo li classical encryption systems, uas tso siab rau lej algorithms los tiv thaiv cov ntaub ntawv, quantum cryptography siv cov ntsiab lus tseem ceeb ntawm quantum physics kom ruaj ntseg kev sib txuas lus.

Ib lub ntsiab lus tseem ceeb hauv quantum cryptography yog kev siv cov subatomic hais, xws li photons, xa cov ntaub ntawv kom ruaj ntseg. Hauv quantum system, photons tuaj yeem ua polarized rau hauv ntau lub xeev los sawv cev cov ntaub ntawv me me, thiab thaum xa los ntawm kev sib txuas lus, lawv lub xeev quantum tseem nyob tsis zoo. Qhov no txhais tau hais tias txhua qhov kev sim cuam tshuam cov ntaub ntawv yuav hloov lub xeev quantum ntawm cov photons, tso cai rau kev kuaj pom tus neeg nkag mus.

Kev ruaj ntseg ntawm quantum cryptography yog raws li lub hauv paus ntsiab lus ntawm quantum uncertainty, uas hais tias nws yog tsis yooj yim sua rau ib txhij ntsuas tus nqi pes tsawg ntawm ob complementary zog ntawm ib tug particle. Ua raws li txoj cai no, quantum cryptography siv quantum entanglement los tsim cov yuam sij tshwj xeeb thiab random encryption. Cov yuam sij no tau sib koom ntawm tus xa thiab txais cov ntaub ntawv, thiab txhua qhov kev sim cuam tshuam lawv yuav raug kuaj pom, txij li kev ntsuas lub xeev quantum ntawm cov khoom sib txuas yuav hloov lawv lub xeev.

10. Encryption nyob rau hauv kev tiv thaiv ntawm tus kheej cov ntaub ntawv: kev cai thiab kev txiav txim siab

Kev txhim kho thev naus laus zis thiab kev loj hlob ntawm tus kheej cov ntaub ntawv khaws cia hauv ntau lub tshuab yuav tsum tau ua raws li kev tiv thaiv tsim nyog. Ib qho ntawm cov kev ntsuas no yog cov ntaub ntawv encryption, uas yog hais txog kev hloov pauv ntawm cov ntaub ntawv rau hauv hom ntawv nyeem tsis tau tshwj tsis yog tias koj muaj tus yuam sij decryption. Hauv qhov kev nkag siab no, muaj cov kev cai tseem ceeb thiab kev txiav txim siab los coj mus rau hauv tus account kom lav qhov ua tau zoo ntawm encryption hauv kev tiv thaiv ntawm tus kheej cov ntaub ntawv.

Ua ntej, nws yog ib qho tseem ceeb kom ua raws li cov cai hauv zos thiab thoob ntiaj teb ntawm kev tiv thaiv cov ntaub ntawv. Piv txwv ntawm cov kev cai no yog General Data Protection Regulation (GDPR) hauv European Union thiab Txoj Cai Tiv Thaiv Tus Kheej Cov Ntaub Ntawv hauv Tebchaws Asmeskas. Cov kev cai no tsim cov kev cai tsawg kawg nkaus rau kev ua cov ntaub ntawv tus kheej, suav nrog kev lav phib xaub rau cov ntaub ntawv rhiab.

Ntxiv nrog rau kev ua raws li cov cai, nws yog ib qho tseem ceeb uas yuav tau xav txog qhov encryption algorithm siv. Muaj ntau txoj kev encryption, xws li symmetric encryption thiab asymmetric encryption. Symmetric encryption siv tib tus yuam sij rau encrypt thiab decrypt cov ntaub ntawv, thaum asymmetric encryption siv ob tus yuam sij sib txawv: tus yuam sij pej xeem rau encrypt thiab tus yuam sij ntiag tug rau decrypt. Nws yog ib qho tsim nyog los ntsuas qhov algorithm zoo tshaj plaws rau kev nyab xeeb thiab kev xav tau ntiag tug ntawm lub koom haum.

Hauv cov ntsiab lus, encryption hauv kev tiv thaiv tus kheej cov ntaub ntawv yog ib qho kev ntsuas tseem ceeb los lav qhov tsis pub lwm tus paub thiab kev ncaj ncees ntawm cov ntaub ntawv. Txhawm rau siv nws kom zoo, nws yog qhov yuav tsum tau ua raws li cov cai hauv zos thiab thoob ntiaj teb, nrog rau ntsuas thiab xaiv qhov tsim nyog tshaj plaws encryption algorithm. Encryption yog lub cuab yeej muaj zog uas yuav tsum yog ib feem ntawm cov ntaub ntawv tiv thaiv lub tswv yim ntawm txhua lub koom haum uas tswj hwm cov ntaub ntawv rhiab.

11. Kev tawm tsam thiab qhov tsis zoo nyob rau hauv encryption: Kev soj ntsuam kev pheej hmoo

12. Qhov tseem ceeb ntawm kev encryption hauv computer kev ruaj ntseg: Tiv thaiv cov ntaub ntawv rhiab heev

Encryption yog ib qho cuab yeej tseem ceeb hauv kev ruaj ntseg hauv computer los tiv thaiv cov ntaub ntawv rhiab heev. Nws muaj xws li hloov cov ntaub ntawv mus rau hauv ib hom ntawv nyeem tsis tau rau leej twg uas tsis muaj tus yuam sij decryption sib raug. Qhov no ua kom ntseeg tau tias txawm tias ib tus neeg tswj hwm nkag mus rau cov ntaub ntawv, lawv yuav tsis tuaj yeem nkag siab nws lossis siv nws ua phem.

Muaj cov txheej txheem encryption sib txawv, los ntawm cov txheej txheem yooj yim mus rau ntau qhov kev sib txuas lus tseem ceeb rau pej xeem. Qee cov algorithms muaj xws li AES (Advanced Encryption Standard), RSA (Rivest-Shamir-Addleman), thiab DES (Data Encryption Standard), thiab lwm yam. Cov algorithms no siv cov txheej txheem sib txawv los encode thiab txiav txim siab cov ntaub ntawv, muab ntau qib kev ruaj ntseg.

Qhov tseem ceeb ntawm encryption nyob rau hauv qhov tseeb tias nws tiv thaiv tsis pub lwm tus paub thiab kev ncaj ncees ntawm cov ntaub ntawv. Los ntawm encrypting cov ntaub ntawv, nws tiv thaiv los ntawm kev nyeem lossis hloov kho los ntawm cov neeg tsis tau tso cai. Tsis tas li ntawd, nyob rau hauv qhov xwm txheej uas tus neeg sab nrauv cuam tshuam cov ntaub ntawv hauv kev thauj mus los, encryption xyuas kom meej tias nws tsis tuaj yeem nkag siab. Yog li ntawd, nws yog ib qho tseem ceeb rau kev siv encryption nyob rau hauv lub computer kev ruaj ntseg los xyuas kom meej tus kheej thiab tsis pub leej twg paub ntawm rhiab cov ntaub ntawv.

13. Kev nkag mus thiab hauv Is Taws Nem ntawm Tej Yam: Kev Sib Tw thiab Kev daws teeb meem

Encryption tau dhau los ua qhov tseem ceeb hauv Internet ntawm Yam (IoT) qhov chaw. Raws li tus naj npawb ntawm cov khoom txuas txuas ntxiv nce ntxiv, nws yog qhov tseem ceeb kom ntseeg tau tias kev nyab xeeb thiab kev ceev ntiag tug ntawm cov ntaub ntawv xa mus thiab khaws cia. Txawm li cas los xij, encrypting kev sib txuas lus thiab cov ntaub ntawv hauv IoT nthuav qhia ntau yam kev cov nyom thiab cov kev cai tshwj xeeb los coj mus rau hauv tus account.

Ib qho ntawm cov teeb meem tseem ceeb ntawm kev encryption hauv IoT yog qhov txwv loj thiab kev ua haujlwm ntawm cov khoom siv sib txuas. Cov cuab yeej no feem ntau muaj cov peev txheej tsawg, ua rau nws nyuaj rau kev siv cov txheej txheem encryption algorithms. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau nrhiav kev sib sib zog nqus thiab muaj txiaj ntsig encryption kev daws teeb meem uas haum rau cov kev txwv ntawm IoT cov khoom siv.

Tsis tas li ntawd, lwm qhov kev sib tw tseem ceeb yog kev sib txawv ntawm cov khoom siv thiab cov txheej txheem siv hauv IoT. Txhua lub cuab yeej siv tau cov kev sib txuas lus sib txawv thiab muaj cov kev cai tshwj xeeb. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tsum muaj cov kev hloov pauv hloov pauv thiab hloov pauv hloov pauv hloov pauv hloov pauv mus rau qhov sib txawv IoT xav tau thiab cov qauv tsim.

Ib qho kev daws teeb meem los daws cov teeb meem no yog kev siv ua ke asymmetric thiab symmetric encryption algorithms. Asymmetric algorithms, xws li RSA, yog siv rau kev sib pauv tseem ceeb thiab kev lees paub, thaum symmetric algorithms, xws li AES, yog siv los encrypt thiab decrypt cov ntaub ntawv nws tus kheej. Tsis tas li ntawd, nws raug nquahu kom siv cov txheej txheem kev nyab xeeb, xws li TLS / SSL, uas muab cov txheej txheem ntxiv kev tiv thaiv rau kev sib txuas lus IoT.

Txhawm rau kom ntseeg tau cov ntaub ntawv kev nyab xeeb thiab kev ceev ntiag tug hauv IoT, nws tseem yog qhov tseem ceeb rau kev ua raws li kev tswj hwm qhov tseem ceeb. Qhov no suav nrog kev ruaj ntseg tiam, kev faib tawm thiab hloov tshiab ntawm cov yuam sij cryptographic siv hauv cov txheej txheem encryption. Tsis tas li ntawd, cov cai thiab cov txheej txheem tsim nyog yuav tsum tau tsim los rau kev khaws cia thiab kev tswj xyuas tseem ceeb, nrog rau kev tshem tawm thiab hloov pauv thaum muaj kev cuam tshuam lossis poob.

Nyob rau hauv cov ntsiab lus, encryption nyob rau hauv Internet ntawm Tej yam nthuav qhia tshwj xeeb cov kev cov nyom thiab cov kev daws teeb meem vim hais tias ntawm cov kev txwv ntawm cov khoom siv IoT thiab ntau haiv neeg thiab cov txheej txheem siv. Kev sib xyaw ua ke ntawm asymmetric thiab symmetric encryption algorithms, nrog rau kev siv cov txheej txheem kev ruaj ntseg thiab cov kev tswj hwm zoo, tuaj yeem pab ua kom cov ntaub ntawv muaj kev nyab xeeb thiab kev ceev ntiag tug hauv IoT ib puag ncig.

14. Encryption nyob rau hauv cov ntsiab lus ntawm cryptocurrencies thiab blockchain: ib tug technical look

Hauv cov ntsiab lus ntawm cryptocurrencies thiab blockchain, encryption plays lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev ruaj ntseg thiab kev ncaj ncees ntawm cov ntaub ntawv. Kev siv cov cryptographic algorithms tso cai rau cov ntaub ntawv tsis pub lwm tus paub los tiv thaiv, nrog rau qhov tseeb ntawm kev hloov pauv kom raug txheeb xyuas.

Ib txoj hauv kev siv ntau tshaj plaws nyob rau hauv ib puag ncig no yog pej xeem qhov tseem ceeb encryption, uas yog raws li kev siv ob lub yuam sij sib txawv: ib qho pej xeem thiab ib qho ntiag tug. Tus yuam sij pej xeem tau muab faib nrog rau lwm cov neeg siv thiab siv los encrypt cov ntaub ntawv, thaum tus yuam sij ntiag tug khaws cia tsis pub leejtwg paub thiab siv los decrypt nws. Txoj kev no lav tias tsuas yog tus neeg tau txais cov ntaub ntawv tuaj yeem nkag mus tau.

Ntxiv nrog rau qhov tseem ceeb rau pej xeem encryption, muaj lwm cov txheej txheem cryptographic siv hauv cryptocurrencies thiab blockchain, xws li hash functions thiab digital kos npe. Hash ua haujlwm tso cai rau txhua tus lej ntawm cov ntaub ntawv raug txo qis rau ib txoj hlua ruaj ntawm cov cim, ua kom yooj yim rau kev txheeb xyuas qhov tseeb ntawm cov ntaub ntawv. Ntawm qhov tod tes, kev kos npe digital tso cai ua pov thawj ntawm kev tso cai ntawm kev sib pauv, vim lawv yog raws li kev siv cov yuam sij pej xeem thiab ntiag tug los txheeb xyuas qhov tseeb ntawm cov lus. Hauv cov ntsiab lus, encryption yog ib feem tseem ceeb ntawm lub ntiaj teb cryptocurrencies thiab blockchain, lav kev ruaj ntseg thiab kev ntseeg siab ntawm cov ntaub ntawv.

Hauv ntej, encryption yog ib qho cuab yeej tseem ceeb hauv kev tiv thaiv cov ntaub ntawv rhiab hauv lub hnub nyoog digital. Los ntawm complex lej algorithms, thawj cov ntaub ntawv yog hloov mus rau hauv ib daim ntawv uas yog unreadable los ntawm ib tug neeg tsis tau tso cai. Cov txheej txheem no ua kom muaj kev ceev ntiag tug thiab kev ncaj ncees ntawm cov ntaub ntawv, kom ntseeg tau tias tsuas yog cov neeg tau txais kev tso cai tuaj yeem nkag mus rau nws cov ntsiab lus.

Niaj hnub no, encryption tau dhau los ua tus qauv hauv kev ruaj ntseg cov ntaub ntawv, siv ob qho tib si hauv kev ua haujlwm ib puag ncig thiab hauv peb cov haujlwm niaj hnub. Nws yog ib qho tseem ceeb kom nkag siab txog nws cov hauv paus ntsiab lus kom muaj peev xwm txiav txim siab paub thiab tiv thaiv peb cov ntaub ntawv zoo.

Txawm li cas los xij, nws yog ib qho tseem ceeb kom nco ntsoov tias encryption tsis yog ruam. Raws li thev naus laus zis nce qib, yog li ua cov txheej txheem decryption. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum nyob twj ywm ntawm kev nce qib hauv cryptanalysis thiab nyob twj ywm rau hnub tim ntawm encryption cov kev coj ua zoo tshaj plaws.

Hauv kev xaus, encryption yog ib qho cuab yeej tseem ceeb los tiv thaiv peb cov ntaub ntawv hauv lub ntiaj teb digital sib txuas ntxiv. Nws daim ntawv thov raug thiab paub qab hau pab txhawb rau cov ntaub ntawv kev ruaj ntseg thiab tsis pub leej twg paub cov ntaub ntawv rhiab. Kev paub txog qhov kev txhim kho tshiab kawg hauv kev encryption thiab ua kom lub qhov muag tawm ntawm qhov muaj peev xwm tsis zoo yog qhov tseem ceeb los ua kom peb cov kab ke thiab kev sib txuas lus ruaj ntseg.