Video: Dab tsi yog qhov txawv ntawm qhov encryption algorithm thiab tus yuam sij?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Algorithm yog pej xeem, paub los ntawm tus sender, receiver, attacker thiab txhua leej txhua tus paub txog encryption . Ntsiab ntawm qhov tod tes yog tus nqi tshwj xeeb uas siv los ntawm koj nkaus xwb (thiab tus txais kev pabcuam hauv Symmetric Encryption ). Ntsiab yog qhov ua rau koj encrypted cov lus tshwj xeeb los ntawm cov uas siv los ntawm lwm tus.
Tsuas yog li ntawd, dab tsi yog qhov tseem ceeb hauv encryption algorithm?
Hauv cryptoography , a tus yuam sij yog ib daim ntawm cov ntaub ntawv (ib qho parameter) uas txiav txim siab qhov ua haujlwm ntawm cov ntaub ntawv cryptographic algorithm . Rau encryption algorithms , a tus yuam sij qhia meej txog kev hloov pauv ntawm cov ntawv dawb rau hauv ciphertext, thiab rov qab rau kev decryption algorithms.
Ib tug kuj yuav nug, hom tus yuam sij twg muaj ib tus yuam sij rau encryption thiab lwm tus yuam sij rau decryption? Nco qab tias muaj ob qho yooj yim hom ntawm encryption : symmetric algorithms: (tseem hu ua "secret tus yuam sij ”) siv tib yam tus yuam sij rau ob leeg encryption thiab decryption ; asymmetric algorithms: (tseem hu ua "public tus yuam sij ”) siv txawv cov yuam sij rau encryption thiab decryption.
Ntawm no, tus yuam sij encryption zoo li cas?
Symmetrical key encryption yog siv rau encrypting cov ntaub ntawv loj npaum li cas. 256-ntsis AES cov yuam sij yog cov yuam sij sib npaug. Asymmetric, los yog pej xeem / ntiag tug encryption , siv ib khub ntawm cov yuam sij. Thaum asymmetrical tus yuam sij khub yog generated, pej xeem tus yuam sij feem ntau yog siv rau encryption , thiab private tus yuam sij feem ntau yog siv los decrypt.
Dab tsi yog cipher thiab qhov tseem ceeb?
A cipher algorithm yog cov qauv lej tsim tshwj xeeb los ua kom pom tseeb tus nqi thiab cov ntsiab lus ntawm cov ntaub ntawv. Qhov no tus yuam sij yog siv los encrypt cov ntaub ntawv, thiab qhov ntawd tus yuam sij los yog complementary tus yuam sij yuav tsum tau decrypt cov ntaub ntawv rov qab mus rau ib daim ntawv muaj txiaj ntsig.
Pom zoo:
Dab tsi ntawm algorithms xav kom tus neeg xa khoom thiab tus neeg txais kev sib pauv hloov tus yuam sij zais cia uas siv los xyuas kom meej qhov tsis pub lwm tus paub ntawm cov lus?
Dab tsi ntawm algorithms xav kom tus neeg xa khoom thiab tus neeg txais kev sib pauv pauv tus yuam sij zais cia uas siv los xyuas kom tsis pub leej twg paub cov lus? Kev piav qhia: Symmetrical algorithms siv tib tus yuam sij, tus yuam sij zais cia, los encrypt thiab decrypt cov ntaub ntawv. Tus yuam sij no yuav tsum tau muab qhia ua ntej ua ntej kev sib txuas lus tuaj yeem tshwm sim
Dab tsi yog tus yuam sij ntiag tug thiab pej xeem tus yuam sij hauv Blockchain?
Thaum ib tug neeg xa koj cryptocoins hla Blockchain, lawv tau xa lawv mus rau qhov hashed version ntawm qhov hu ua "Public Key". Muaj lwm tus yuam sij uas zais ntawm lawv, uas yog hu ua "Private Key." Qhov Private Key no yog siv los muab Public Key
Puas yog tus yuam sij tseem ceeb kuj yog tus yuam sij txawv teb chaws?
Cov yuam sij tseem ceeb ib txwm yuav tsum muaj qhov tshwj xeeb, cov yuam sij txawv teb chaws yuav tsum tso cai rau qhov tsis muaj txiaj ntsig yog tias lub rooj yog ib qho kev sib raug zoo. Nws yog qhov zoo kawg nkaus siv tus yuam sij txawv teb chaws los ua tus yuam sij tseem ceeb yog tias lub rooj sib txuas los ntawm kev sib raug zoo ib leeg, tsis yog ib qho kev sib raug zoo
Ib tus yuam sij txawv teb chaws puas tuaj yeem siv lwm tus yuam sij txawv teb chaws?
1 Teb. Tus yuam sij txawv teb chaws tuaj yeem siv txhua qhov chaw uas txhais tau tias nws txawv. Yog hais tias qhov tshwj xeeb teb yog nws tus kheej txhais tau tias yog tus yuam sij txawv teb chaws, nws tsis txawv. Yog tias nws yog thaj chaw tshwj xeeb, nws kuj tuaj yeem yog lub hom phiaj ntawm lwm FK
Tus yuam sij tseem ceeb thib ob thiab tus yuam sij txawv teb chaws yog dab tsi?
Txawv Teb Chaws Tseem Ceeb: Yog Lub Ntsiab Tseem Ceeb ib lub rooj tshwm (hloov-hais) hauv lwm lub rooj. Secondary (los yog lwm txoj kev) Key: Puas yog ib qho chaw hauv lub rooj uas tsis raug xaiv los ua ib qho ntawm ob hom saum toj no