Puas yog passwords encrypted lossis hashed?
Puas yog passwords encrypted lossis hashed?

Video: Puas yog passwords encrypted lossis hashed?

Video: Puas yog passwords encrypted lossis hashed?
Video: 90% पुरुष इस सेks पोजीशन//psychology facts in hindi//manovigyanic facts// manovigyan// 2024, Kaum ib hlis
Anonim

Encryption yog ob txoj kev ua haujlwm; yog dab tsi encrypted tuaj yeem decrypted nrog tus yuam sij kom raug. Hashing , txawm li cas los xij, yog ib txoj hauv kev ua haujlwm uas scrambles plaintext los tsim cov lus tshwj xeeb digest. Ib tug attacker uas nyiag afile ntawm hashed passwords yuav tsum tau twv tus tus password.

Tsis tas li ntawd, vim li cas tus password feem ntau hashed?

Txhawm rau tiv thaiv cov kev tawm tsam no, txhua tus tus password yog hashed ua ke nrog ib qho tshwj xeeb randomly generated piece ofinput (hu ua ntsev). Cov ntsev yog khaws cia rau hauv cov ntawv dawb hauv cov ntaub ntawv thiab nws tsis tas yuav zais cia, vim tias nws lub hom phiaj tseem ceeb yog ua kom ua ntej. hash phau ntawv txhais lus siv tsis tau.

Tom qab ntawd, lo lus nug yog, dab tsi yog qhov zoo tshaj plaws password encryption algorithm? Cov passwords yuav tsum tau hashed nrog PBKDF2, bcrypt lossis scrypt, MD-5 thiab SHA-3 yuav tsum tsis txhob siv rau password hashing thiab SHA-1/2 ( tus password + ntsev) yog bigno-no thiab. Tam sim no qhov feem ntau vetted hashing algorithm muab kev ruaj ntseg feem ntau yog bcrypt. PBKDF2 tsis yog qhov phem, tab sis yog tias koj tuaj yeem siv bcrypt koj yuav tsum.

Tom qab ntawd, dab tsi yog encrypted passwords?

Kev txhais cov ntaub ntawv mus rau hauv ib tug zais cia code. Encryption yog txoj hauv kev zoo tshaj plaws kom ua tiav datasecurity. Nyeem ib encrypted cov ntaub ntawv, koj yuav tsum muaj kev nkag mus rau tus yuam sij zais lossis tus password uas ua rau koj decrypt nws. Unencrypted cov ntaub ntawv hu ua cov ntawv dawb; encrypted cov ntaub ntawv raug xa mus ua cov ntawv cipher.

Yuav khaws cov password li cas?

Yuav khaws Passwords li cas . Tag nrho cov niaj hnub kev ruaj ntseg computer systems khw cov neeg siv ' passwords nyob rau hauv anencrypted hom ntawv. Thaum twg tus neeg siv nkag rau hauv, lub tus password nkag mus yog encrypted pib, ces muab piv rau cov khaws cia encryption ntawm cov tus password txuam nrog tus neeg siv lub npe nkag.

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