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Kopi-Paste Bug min ye PSpice AES-256 Encryption tiɲɛ

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15 min read Via jtsylve.blog

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Kopi-Paste Bug min ye PSpice AES-256 Encryption tiɲɛ

porozɛw dilanni diɲɛ kɔnɔ, a ka c’a la, gɛlɛya minnu ka jugu kosɛbɛ, olu tɛ bɔ algorisimu dɛsɛ gɛlɛnw na, nka u bɛ bɔ hadamadenw ka kɔlɔsili nɔgɔmanw na. O tiɲɛ hakilijiginba dɔ bɔra kɛnɛ kan filiba dɔ fɛ min sɔrɔla PSpice kɔnɔ, n’o ye Cadence ka ciriw simulasi porogaramu ye min bɛ bɛn izini ma. O buguri in, n’o tun sigilen bɛ AES-256 kodɔncogo barikama waleyali la, o bɔyɔrɔ tun bɛ diɲɛnatigɛ la min bɛ marifa bɔ a la: fili min kɛra kopi-paste (kopi-paste) la. Nin ko in bɛ gɛlɛya dɔ sinsin diɲɛ bɛɛ kan porozɛw dilanni na, wa a b’a jira mun na modulu, auditable platforms i n’a fɔ Mewayz bɛ ka kɛ fɛn nafamaw ye jago siratigɛw jɔli la minnu bɛ se ka muɲu. Nin bugu in maana ye lasɔmini maana ye min bɛ tali kɛ kode fila-fila musaka dogolenw na ani porogaramuw jɔcogo kelen-kelenw ka nɔgɔya kan.

Kriptografu ka balawu dɔ farikololabɔli

O buguri sɔrɔla `cryptlib` kriptografiki gafemarayɔrɔ la , PSpice bɛ baara kɛ ni min ye a ka kodɔncogo la . A kɔnɔko la, Advanced Encryption Standard (AES) bɛ baara kɛ baarakɛcogo caman na. AES-256 ta la, o ɲɔgɔnna 14 bɛ yen. Lamini kelen-kelen bɛɛ bɛ "kɔlɔsili kilisi" kɛrɛnkɛrɛnnen de wajibiya, min bɛ bɔ sirili kilisi fɔlɔ la, taabolo dɔ fɛ min bɛ wele ko kilisi bonya. O dabɔbaa ka baara tùn ye ka 'lupulu Sɔrɔ k'o 'sèn 14 ninnu Kɛ. Nka, sanni a ka kɛ 'lupu saniyalen ye, min bɛ Se ka segin-ka-bɔ, kode in Dabɔra ni bloki fla ye minnu bɛ Taa ɲɔgɔn fɛ kosɛbɛ: kelen bɛ Kɛ 'sèn 9 fɔlɔw ye, kelen bɛ Kɛ 'sèn duuru labanw ye. Kopi-ni-paste baara dɔ senfɛ, kode layini kɔrɔlen dɔ min bɛ fɛn falen-falen kɛcogo dɔ Kɛ, o Bɔra bloki filanan na bala la. O kɔrɔ ye ko sirili 5 labanw na, AES algorisimu yɔrɔ koloma dɔ tɛmɛna dɔrɔn, ka sirili barika dɔgɔya kosɛbɛ.

Mun na kodebiti monolitikiw ye fɛnɲɛnamaw lamɔyɔrɔ ye

O fili in tora senna san caman kɔnɔ k' a sɔrɔ a ma kɔlɔsi bawo a su donna kodɔnba dɔ kɔnɔ , min ye kelen ye . O sigida suguw la, modulu kelen i n’a fɔ `cryptlib` bɛ siri kosɛbɛ baarakɛminɛn in fini na, o bɛ sɛgɛsɛgɛli ni sɛgɛsɛgɛli danfaralenw kɛ gɛlɛya ye. Kodɔn-yɔrɔ-ko-fɔlenw hakilina tun tɛ fɛn ye min bɛ a yɛrɛ la, min bɛ se ka kɔrɔbɔ nɔgɔya la, nka a tun ye puzzle dɔ yɔrɔ ye min ka bon kosɛbɛ. O modulari dɛsɛ in ye farati fɔlɔ ye baarakɛda ka porogaramuw la. A bɛ fiyentɔw bila yɔrɔ minnu na, fili nɔgɔman dɔ bɛ se ka kɛ cogo min na, o bɛ se ka sigida bɛɛ lakanani tiɲɛ, i n’a fɔ a yɔrɔ kelen min dafara, o bɛ se ka fɛn dilanni sira gɛlɛn dɔ jɔ cogo min na. Nin yɔrɔ in de la, hakilila min bɛ modular business OS kɔfɛ i n’a fɔ Mewayz, o bɛ fɛɛrɛ wɛrɛ jira min bɛ mɔgɔ bila ka miiri. Ni jagokɛlaw ye sistɛmuw dilan ni modulu danfaralenw ye, minnu bɛ se ka wuli ka bɔ u nɔ na, jagokɛlaw bɛ se ka baarakɛcogo danfara, ka yɔrɔ kelen-kelen bɛɛ jateminɛ nɔgɔya, k’u kɔrɔbɔ, k’u kuraya, k’a sɔrɔ u ma farati lase sistɛmu tiɲɛni ma.

Kalansenw bi porozɛw yiriwali kama

PSpice bug bɛ kalan nafama caman kalan minnu bɛ taa ka tɛmɛ ciriw simulasiyɔn porogaramuw kan kosɛbɛ :

  • Segin-ka-bɔnye farati : kopi-pasting kode ye fili sɔrɔyɔrɔ tɔgɔjugu ye . Duplicate bɛɛ ye fɛn ye min bɛ se ka kɛ sababu ye ka danfara don sini ani ka buguri don.
  • Unit Testing is Non-Negotiable : Unit testing completely for the AES encryption function, ka bɔli lajɛ ni vektɔri dɔntaw ye minnu sɛgɛsɛgɛra, o tun bɛna nin minɛ o yɔrɔnin bɛɛ.
  • Kode seginnkanni bɛ sistɛmuw kisi : ɲɛ fila filanan , kɛrɛnkɛrɛnnenya la lakanako gɛlɛnw dakunw kan , o ye buguri minɛcogo ɲuman dɔ ye .
  • Nɔgɔya ka tɛmɛn hakilitigiya kan : lupu nɔgɔman , jɛlen min tun bɛ kɛ ka 14 kɛ , o tun bɛna fili kosɛbɛ ka tɛmɛ bloki tilalen sigicogo kan .
"Nin gɛlɛya in b'a jira ko kriptositɛmu fanga tɛ sɔrɔ algorisimu jatebɔ dɔrɔn na nka a waleyali bɛnnen don cogo kelen na. Sɛgɛsɛgɛli kelen min kɛra kode kɔnɔ, o bɛ se ka AES-256 dɔgɔya ka se barikantanya hakɛ ma min tɛ foyi ye ka kari."(blockquote>) – Lakanali ɲininikɛlaw ka sɛgɛsɛgɛli

Ka jɔli kɛ modulu dafalen jusigilan kan

O bugu in nɔfɛko y' a to Cadence ka patɔrɔn kɔrɔlen dɔ bɔ , o ye ɛntɛrinɛti tɔn jatebaliya wajibiya k' u ka cidenyabaara kɔrɔlenw ka porogaramuw kuraya joona . O tiɲɛni ni lakana farati min bɛ se ka sɔrɔ, o tun ka bon kosɛbɛ. Jagokɛlaw fɛ bi, ka u jigi da porogaramu kelenw kan, minnu bɛ kɛ ni kɛsu nɛrɛma ye, o bɛ na ni faratiw ye minnu bɛ sɔrɔ baarakɛcogo la. plateforme min bɛ i n’a fɔ Mewayz, o bɛ o ɲɛnabɔ ni jagokɛcogo jɔnjɔnw ye — k’a ta kunnafonidilanw ɲɛnabɔli la ka se lakana sariyaw ma — i n’a fɔ modulu yɛrɛmahɔrɔnyalenw baarakɛminɛnw kɔnɔ minnu bɛ ɲɔgɔn kan. O jɔcogo in bɛ sira Di yɔrɔ kelen-kelen bɛɛ ka tiɲɛni ma min bɛ To senna, min bɛ Bɔ ɲɔgɔn na. Ni bɔnɛ dɔ sɔrɔla modulu kelen kɔnɔ, a bɛ se ka patch walima ka ɲɔgɔn falen-falen k’a sɔrɔ a ma jago baarakɛcogo bɛɛ tiɲɛ. A kunba ye, Mewayz bɛ porogaramuw dilanni suguya saniyalen, min bɛ se ka ladon, ani min bɛ se ka jateminɛ, o yiriwa, min bɛ "copy-paste bugs" bali ka kɛ baarakɛda kɔnɔ gɛlɛyaw ye, k’a lajɛ ko i ka jago hakilina dafalen tɛ tiɲɛ abada fili kelen fɛ, fili nɔgɔman fɛ.

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Ɲininkali minnu bɛ kɛ tuma caman na

Kopi-Paste Bug min ye PSpice AES-256 Encryption tiɲɛ

porozɛw dilanni diɲɛ kɔnɔ, a ka c’a la, gɛlɛya minnu ka jugu kosɛbɛ, olu tɛ bɔ algorisimu dɛsɛ gɛlɛnw na, nka u bɛ bɔ hadamadenw ka kɔlɔsili nɔgɔmanw na. O tiɲɛ hakilijiginba dɔ bɔra kɛnɛ kan filiba dɔ fɛ min sɔrɔla PSpice kɔnɔ, n’o ye Cadence ka ciriw simulasi porogaramu ye min bɛ bɛn izini ma. O buguri in, n’o tun sigilen bɛ AES-256 kodɔncogo barikama waleyali la, o bɔyɔrɔ tun bɛ diɲɛnatigɛ la min bɛ marifa bɔ a la: fili min kɛra kopi-paste (kopi-paste) la. Nin ko in bɛ gɛlɛya dɔ sinsin diɲɛ bɛɛ kan porozɛw dilanni na, wa a b’a jira mun na modulu, auditable platforms i n’a fɔ Mewayz bɛ ka kɛ fɛn nafamaw ye jago siratigɛw jɔli la minnu bɛ se ka muɲu. Nin bugu in maana ye lasɔmini maana ye min bɛ tali kɛ kode fila-fila musaka dogolenw na ani porogaramuw jɔcogo kelen-kelenw ka nɔgɔya kan.

Kriptografu ka balawu dɔ farikololabɔli

O buguri sɔrɔla `cryptlib` kriptografiki gafemarayɔrɔ la , PSpice bɛ baara kɛ ni min ye a ka kodɔncogo la . A kɔnɔko la, Advanced Encryption Standard (AES) bɛ baara kɛ baarakɛcogo caman na. AES-256 ta la, o ɲɔgɔnna 14 bɛ yen. Lamini kelen-kelen bɛɛ bɛ "kɔlɔsili kilisi" kɛrɛnkɛrɛnnen de wajibiya, min bɛ bɔ sirili kilisi fɔlɔ la, taabolo dɔ fɛ min bɛ wele ko kilisi bonya. O dabɔbaa ka baara tùn ye ka 'lupulu Sɔrɔ k'o 'sèn 14 ninnu Kɛ. Nka, sanni a ka kɛ 'lupu saniyalen ye, min bɛ Se ka segin-ka-bɔ, kode in Dabɔra ni bloki fla ye minnu bɛ Taa ɲɔgɔn fɛ kosɛbɛ: kelen bɛ Kɛ 'sèn 9 fɔlɔw ye, kelen bɛ Kɛ 'sèn duuru labanw ye. Kopi-ni-paste baara dɔ senfɛ, kode layini kɔrɔlen dɔ min bɛ fɛn falen-falen kɛcogo dɔ Kɛ, o Bɔra bloki filanan na bala la. O kɔrɔ ye ko sirili 5 labanw na, AES algorisimu yɔrɔ koloma dɔ tɛmɛna dɔrɔn, ka sirili barika dɔgɔya kosɛbɛ.

Mun na kodebiti monolitikiw ye fɛnɲɛnamaw lamɔyɔrɔ ye

O fili in tora senna san caman kɔnɔ k' a sɔrɔ a ma kɔlɔsi bawo a su donna kodɔnba dɔ kɔnɔ , min ye kelen ye . O sigida suguw la, modulu kelen i n’a fɔ `cryptlib` bɛ siri kosɛbɛ baarakɛminɛn in fini na, o bɛ sɛgɛsɛgɛli ni sɛgɛsɛgɛli danfaralenw kɛ gɛlɛya ye. Kodɔn-yɔrɔ-ko-fɔlenw hakilina tun tɛ fɛn ye min bɛ a yɛrɛ la, min bɛ se ka kɔrɔbɔ nɔgɔya la, nka a tun ye puzzle dɔ yɔrɔ ye min ka bon kosɛbɛ. O modulari dɛsɛ in ye farati fɔlɔ ye baarakɛda ka porogaramuw la. A bɛ fiyentɔw bila yɔrɔ minnu na, fili nɔgɔman dɔ bɛ se ka kɛ cogo min na, o bɛ se ka sigida bɛɛ lakanani tiɲɛ, i n’a fɔ a yɔrɔ kelen min dafara, o bɛ se ka fɛn dilanni sira gɛlɛn dɔ jɔ cogo min na. O yɔrɔ de la, hakilina min bɛ jago OS modulari kɔfɛ i n’a fɔ Mewayz, o bɛ fɛɛrɛ wɛrɛ jira min bɛ mɔgɔ bila ka miiri. Ni jagokɛlaw ye sistɛmuw dilan ni modulu danfaralenw ye, minnu bɛ se ka wuli ka bɔ u nɔ na, jagokɛlaw bɛ se ka baarakɛcogo danfara, ka yɔrɔ kelen-kelen bɛɛ jateminɛ nɔgɔya, k’u kɔrɔbɔ, k’u kuraya, k’a sɔrɔ u ma farati lase sistɛmu tiɲɛni ma.

Kalansenw bi porozɛw yiriwali kama

PSpice bug bɛ kalan nafama caman kalan minnu bɛ taa ka tɛmɛ ciriw simulasiyɔn porogaramuw kan kosɛbɛ :

Ka jɔli kɛ modulu dafalen jusigilan kan

O bugu in nɔfɛko y' a to Cadence ka patɔrɔn kɔrɔlen dɔ bɔ , o ye ɛntɛrinɛti tɔn jatebaliya wajibiya k' u ka cidenyabaara kɔrɔlenw ka porogaramuw kuraya joona . O tiɲɛni ni lakana farati min bɛ se ka sɔrɔ, o tun ka bon kosɛbɛ. Jagokɛlaw fɛ bi, ka u jigi da porogaramu kelenw kan, minnu bɛ kɛ ni kɛsu nɛrɛma ye, o bɛ na ni faratiw ye minnu bɛ sɔrɔ baarakɛcogo la. Plateforme min bɛ i n’a fɔ Mewayz, o bɛ o ɲɛnabɔ ni jago baara jɔnjɔnw ye — k’a ta kunnafonidilanw la ka se lakana sariyaw ma — i n’a fɔ modulu yɛrɛmahɔrɔnyalenw baarakɛminɛnw kɔnɔ minnu bɛ ɲɔgɔn kan. O jɔcogo in bɛ sira Di yɔrɔ kelen-kelen bɛɛ ka tiɲɛni ma min bɛ To senna, min bɛ Bɔ ɲɔgɔn na. Ni bɔnɛ dɔ sɔrɔla modulu kelen kɔnɔ, a bɛ se ka patch walima ka ɲɔgɔn falen-falen k’a sɔrɔ a ma jago baarakɛcogo bɛɛ tiɲɛ. A kunba ye, Mewayz bɛ porogaramuw dilanni suguya saniyalen, min bɛ se ka ladon, ani min bɛ se ka jateminɛ, o yiriwa, min bɛ "copy-paste bugs" bali ka kɛ baarakɛda kɔnɔ gɛlɛyaw ye, k’a lajɛ ko i ka jago hakilina dafalen tɛ tiɲɛ abada fili kelen fɛ, fili nɔgɔman fɛ.

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