Zero to Zero Knowledge: Ọrụ Hash

Okwu Mmalite Usoro Nnọọ na usoro ọhụrụ: Zero to Zero Knowledge!

N'usoro a, anyị ga-amụta ihe ndị bụ isi gbasara ọtụtụ teknụzụ dị iche iche nke na-abanye na usoro nchekwa nzuzo anyị.

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Nkebi nke 1: Ọrụ Hash

Taa, anyị na-amalite site na Hash Functions - isi ihe e ji cryptography eme na blockchains. Ma emechaa n'usoro a, anyị ga-ekpuchi ụfọdụ isiokwu dabere na ihe onwunwe ha.

Kedu ihe bụ ọrụ Hash?

Ọrụ Hash na-ewe ntinye nke ogologo ọ bụla ma na-emepụta mmepụta nke ogologo edobere.

• Ozi a ga-eji hash = Ntinye
• Algọridim eji = Ọrụ Hash
• Mwepụta sitere na ya = Uru Hash

Nwaa ya n'onwe gị!

Ka anyị jiri ngwa a nweta nghọta dị mma! Tinye ederede ọ bụla a na-anaghị agbaso iwu iji mepụta mmepụta ogologo oge. Lee ka mmepụta si dị iche dabere na algọridim hashing dị iche iche.

Nwalee ya: https://cryptii.com/pipes/hash-function

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Njirimara nke Ọrụ Hash Cryptographic

Ọrụ Hash Cryptographic ga-enwerịrị ihe atọ a:

1. Otu ụzọ - O kwesịghị ịdị mfe ịtụgharị ọrụ hash
2. Ihe Na-eguzogide Nsogbu - Ntinye abụọ dị iche iche agaghị ejikọta na otu mmepụta
3. Deterministic - Maka ntinye ọ bụla, ọrụ hash ga-enye otu nsonaazụ ahụ mgbe niile

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Ọrụ Hash Ndị A Na-ahụkarị

E nwere ọtụtụ klaasị nke ọrụ Hash. Ụfọdụ ihe atụ:

• Algọridim Hashing Edobere (SHA-3)
• Algọridim Nchịkọta Ozi 5 (MD5)
• BLAKE2b - Ejiri ya na mmepụta igodo Zcash

Okwu mmalite maka BLAKE2: https://www.blake2.net

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Ojiji nke Ọrụ Hash n'Eziokwu n'Ụwa

1. Ịhazi Ezi Uche (Nyocha Ezi Uche Data)

Nlele iguzosi ike n'ezi ihe data bụ ihe atụ nke "Ịhazi iguzosi ike n'ezi ihe". A na-eji ha emepụta checksums na faịlụ data ma na-emesi onye ọrụ obi ike na izi ezi.

2. Osisi Merkle (Osisi Hash)

Osisi hash** ma ọ bụ Merkle nwere alaka na mkpụrụ akwụkwọ nke ejiri hash cryptographic nke blọk data mee akara ya.

Osisi Merkle bụ ihe atụ nke atụmatụ nkwa nzuzo. A na-ahụ Mgbọrọgwụ osisi ahụ dị ka nkwa na mkpụrụ akwụkwọ egosipụtara na ọ bụ akụkụ nke nkwa mbụ ahụ.

Ha na-enyocha data echekwara ma ọ bụ ebufe na netwọk P2P, na-ahụ na data enwetara n'aka ndị ọgbọ ya agbanwebeghị.

3. Osisi Nkwanye Ùgwù na Zcash

N'ime ọdọ mmiri ndị e ji kpuchie Zcash Sapling na Orchard, a na-eji Note Commitment Tree iji hụ na azụmahịa dị irè megide nkwekọrịta ma zoo onye zitere ya, onye nnata na ego e riri nke ọma.

4. Akara ngosi (Mgbochi ụdị Bitcoin)

SHA256 bụ ihe atụ nke "Hash Mbinye aka" eji eme ka blọk ọ bụla ghara ịgbanwe agbanwe na Bitcoin. Ndị na-egwuputa ihe na-eji hash nke blọk gara aga + Hash nke azụmahịa niile dị na blọk ugbu a (hashMerkleRoot) + Timestamp + uru random / nsogbu netwọk maka blọk ọhụrụ.

5. Equihash (Zcash)

Equihash bụ usoro hashing eji arụ ọrụ n'ịgwupụta Zcash. Netwọk dịka Komodo & Horizen na-ejikwa ya.

Equihash: Ihe akaebe ọrụ na-adịghị nhata dabere na nsogbu ọmụmụ izugbe (Biryukov na Khovratovich): https://eprint.iacr.org/2015/946

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Ịgụkwu Ihe

Iji wulite nghọta ka mma nke ụdị ọrụ hash dị iche iche na ojiji ha jikọtara ya, nke a bụ ezigbo akụrụngwa: https://en.wikipedia.org/wiki/Hash_function

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Edemede nke ZecHub (@ZecHub) Eriri X mbụ: https://x.com/ZecHub/status/1621240109663227906

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E si na eriri Zero to Zero Knowledge nke mbụ chịkọta ibe a maka wiki ZecHub.