Fundamentos de Programação

ECDH (Elliptic Curve Diffie-Hellman)

Key agreement protocol where two parties derive a shared secret using their private keys and each other's public keys on an elliptic curve. Used in Solana's confidential transfers to establish encryption keys between sender and recipient without exchanging secrets, enabling encrypted on-chain token amounts.

IDecdhAliasElliptic Curve Diffie-Hellman

Leitura rápida

Comece pela explicação mais curta e útil antes de aprofundar.

Key agreement protocol where two parties derive a shared secret using their private keys and each other's public keys on an elliptic curve. Used in Solana's confidential transfers to establish encryption keys between sender and recipient without exchanging secrets, enabling encrypted on-chain token amounts.

Modelo mental

Use primeiro a analogia curta para raciocinar melhor sobre o termo quando ele aparecer em código, docs ou prompts.

Pense nisso como um bloco de construção que ajuda a ligar uma definição isolada ao sistema maior onde ela vive.

Contexto técnico

Coloque o termo dentro da camada de Solana em que ele vive para raciocinar melhor sobre ele.

Serialização, memória, estruturas de dados e bases de engenharia.

Por que builders ligam para isso

Transforme o termo de vocabulário em algo operacional para produto e engenharia.

Este termo destrava conceitos adjacentes rapidamente, então funciona melhor quando você o trata como um ponto de conexão, não como definição isolada.

Handoff para IA

Handoff para IA

Use este bloco compacto quando quiser dar contexto aterrado para um agente ou assistente sem despejar a página inteira.

ECDH (Elliptic Curve Diffie-Hellman) (ecdh)
Categoria: Fundamentos de Programação
Definição: Key agreement protocol where two parties derive a shared secret using their private keys and each other's public keys on an elliptic curve. Used in Solana's confidential transfers to establish encryption keys between sender and recipient without exchanging secrets, enabling encrypted on-chain token amounts.
Aliases: Elliptic Curve Diffie-Hellman
Relacionados: Curve25519, Criptografia, Criptografia de Chave Pública
Glossary Copilot

Faça perguntas de Solana com contexto aterrado sem sair do glossário.

Use contexto do glossário, relações entre termos, modelos mentais e builder paths para receber respostas estruturadas em vez de output genérico.

Explicar este código

Opcional: cole código Anchor, Solana ou Rust para o Copilot mapear primitivas de volta para termos do glossário.

Faça uma pergunta aterrada no glossário

Faça uma pergunta aterrada no glossário

O Copilot vai responder usando o termo atual, conceitos relacionados, modelos mentais e o grafo ao redor do glossário.

Grafo conceitual

Veja o termo como parte de uma rede, não como uma definição sem saída.

Esses ramos mostram quais conceitos esse termo toca diretamente e o que existe uma camada além deles.

Ramo

Curve25519

An elliptic curve designed by Daniel Bernstein for efficient Diffie-Hellman key exchange. It operates on a Montgomery curve over a 255-bit prime field, offering 128-bit security. Solana uses the related Edwards form (Ed25519) for transaction signatures. Curve25519 is favored for its speed, constant-time implementation, and resistance to timing attacks.

Ramo

Criptografia

The process of converting plaintext data into ciphertext that can only be read with the correct decryption key. Symmetric encryption (AES) uses one key for both operations. Asymmetric encryption (RSA, ECIES) uses public/private key pairs. On Solana, encryption is used in confidential transfers (Twisted ElGamal), off-chain communication, and wallet security.

Ramo

Criptografia de Chave Pública

A cryptographic system using mathematically linked key pairs: a public key (shared freely) and a private key (kept secret). Used for digital signatures (sender signs with private key, anyone verifies with public key) and encryption (encrypt with public key, decrypt with private key). Solana uses Ed25519 for signatures and Curve25519/Ristretto255 for encryption.

Próximos conceitos para explorar

Continue a cadeia de aprendizado em vez de parar em uma única definição.

Estes são os próximos conceitos que valem abrir se você quiser que este termo faça mais sentido dentro de um workflow real de Solana.

Fundamentos de Programação

Curve25519

An elliptic curve designed by Daniel Bernstein for efficient Diffie-Hellman key exchange. It operates on a Montgomery curve over a 255-bit prime field, offering 128-bit security. Solana uses the related Edwards form (Ed25519) for transaction signatures. Curve25519 is favored for its speed, constant-time implementation, and resistance to timing attacks.

Fundamentos de Programação

Criptografia

The process of converting plaintext data into ciphertext that can only be read with the correct decryption key. Symmetric encryption (AES) uses one key for both operations. Asymmetric encryption (RSA, ECIES) uses public/private key pairs. On Solana, encryption is used in confidential transfers (Twisted ElGamal), off-chain communication, and wallet security.

Fundamentos de Programação

Criptografia de Chave Pública

A cryptographic system using mathematically linked key pairs: a public key (shared freely) and a private key (kept secret). Used for digital signatures (sender signs with private key, anyone verifies with public key) and encryption (encrypt with public key, decrypt with private key). Solana uses Ed25519 for signatures and Curve25519/Ristretto255 for encryption.

Fundamentos de Programação

ELF Binary

Executable and Linkable Format — the binary format used for deployed Solana programs. Rust source code is compiled via cargo-build-sbf into an SBF-targeted ELF binary (.so file) that the Solana runtime loads and executes. The ELF format contains the program's compiled bytecode, symbol tables, and relocation information. ELF binaries are uploaded to buffer accounts during deployment and then written to the program data account.

Termos relacionados

Siga os conceitos que realmente dão contexto a este termo.

Entradas de glossário só ficam úteis quando estão conectadas. Esses links são o caminho mais curto para ideias adjacentes.

Fundamentos de Programaçãocurve25519

Curve25519

An elliptic curve designed by Daniel Bernstein for efficient Diffie-Hellman key exchange. It operates on a Montgomery curve over a 255-bit prime field, offering 128-bit security. Solana uses the related Edwards form (Ed25519) for transaction signatures. Curve25519 is favored for its speed, constant-time implementation, and resistance to timing attacks.

Fundamentos de Programaçãoencryption

Criptografia

The process of converting plaintext data into ciphertext that can only be read with the correct decryption key. Symmetric encryption (AES) uses one key for both operations. Asymmetric encryption (RSA, ECIES) uses public/private key pairs. On Solana, encryption is used in confidential transfers (Twisted ElGamal), off-chain communication, and wallet security.

Fundamentos de Programaçãopublic-key-cryptography

Criptografia de Chave Pública

A cryptographic system using mathematically linked key pairs: a public key (shared freely) and a private key (kept secret). Used for digital signatures (sender signs with private key, anyone verifies with public key) and encryption (encrypt with public key, decrypt with private key). Solana uses Ed25519 for signatures and Curve25519/Ristretto255 for encryption.

Mais na categoria

Permaneça na mesma camada e continue construindo contexto.

Essas entradas vivem ao lado do termo atual e ajudam a página a parecer parte de um grafo maior, não um beco sem saída.

Fundamentos de Programação

Rust

A systems programming language emphasizing memory safety, zero-cost abstractions, and concurrency without a garbage collector. Rust uses an ownership model with borrow checking at compile time to prevent data races and null pointer bugs. It is the primary language for Solana program development (via Anchor or native solana-program crate) and the Agave validator client.

Fundamentos de Programação

TypeScript

A statically typed superset of JavaScript that compiles to plain JavaScript. TypeScript adds type annotations, interfaces, generics, and enums to catch errors at compile time. It is the standard language for Solana client-side development—wallet adapters, dApp frontends, test suites, and SDK interactions (web3.js, Anchor client) are typically written in TypeScript.

Fundamentos de Programação

JavaScript

The ubiquitous scripting language for web development, running in browsers and Node.js. JavaScript is dynamically typed and event-driven. Most Solana dApp frontends and scripts use JavaScript/TypeScript with libraries like @solana/web3.js. Node.js enables server-side JS for backend services, indexers, and bot development.

Fundamentos de Programação

Node.js

A JavaScript runtime built on Chrome's V8 engine that enables server-side JavaScript execution. Node.js uses an event-driven, non-blocking I/O model. In the Solana ecosystem, Node.js is used for: running Anchor tests (Mocha/Jest), backend services, transaction bots, indexers, and CLI tools. npm/yarn/pnpm manage JavaScript package dependencies.