Elliptic curve form optimized for fast addition operations, used by Ed25519 (Curve25519 in twisted Edwards form). Solana uses Ed25519 for all keypair generation and transaction signing. The curve's algebraic properties enable complete addition formulas (no edge cases), making implementations simpler and resistant to side-channel attacks.
Comece pela explicação mais curta e útil antes de aprofundar.
Elliptic curve form optimized for fast addition operations, used by Ed25519 (Curve25519 in twisted Edwards form). Solana uses Ed25519 for all keypair generation and transaction signing. The curve's algebraic properties enable complete addition formulas (no edge cases), making implementations simpler and resistant to side-channel attacks.
Use primeiro a analogia curta para raciocinar melhor sobre o termo quando ele aparecer em código, docs ou prompts.
Pense nisso como parte da engrenagem que mantém a ordenação, execução ou consenso da rede funcionando.
Coloque o termo dentro da camada de Solana em que ele vive para raciocinar melhor sobre ele.
Consenso, rotação de líderes, slots, epochs e o runtime.
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.
Use este bloco compacto quando quiser dar contexto aterrado para um agente ou assistente sem despejar a página inteira.
Twisted Edwards Curve (twisted-edwards-curve) Categoria: Protocolo Base Definição: Elliptic curve form optimized for fast addition operations, used by Ed25519 (Curve25519 in twisted Edwards form). Solana uses Ed25519 for all keypair generation and transaction signing. The curve's algebraic properties enable complete addition formulas (no edge cases), making implementations simpler and resistant to side-channel attacks. Aliases: Edwards Curve Relacionados: Ed25519, Ed25519 Precompile, On-Curve / Off-Curve
Use contexto do glossário, relações entre termos, modelos mentais e builder paths para receber respostas estruturadas em vez de output genérico.
Opcional: cole código Anchor, Solana ou Rust para o Copilot mapear primitivas de volta para termos do glossário.
O Copilot vai responder usando o termo atual, conceitos relacionados, modelos mentais e o grafo ao redor do glossário.
Esses ramos mostram quais conceitos esse termo toca diretamente e o que existe uma camada além deles.
The elliptic curve digital signature algorithm used by Solana for all transaction signing. Ed25519 uses Curve25519 and produces 64-byte signatures with 32-byte public keys. Solana also provides an Ed25519 precompile program for on-chain signature verification within program logic.
A native Solana program (address: Ed25519SigVerify111111111111111111111111111) that enables batch verification of Ed25519 signatures within on-chain program logic. Unlike the runtime's built-in transaction signature verification, this precompile allows programs to verify arbitrary Ed25519 signatures over arbitrary data, useful for off-chain message verification, oracle attestations, and multi-party protocols. Multiple signatures can be verified in a single instruction.
In elliptic curve cryptography, a point is 'on-curve' if it satisfies the curve equation (e.g., Ed25519) and can serve as a valid public key with a corresponding private key. An 'off-curve' point does not lie on the curve and has no associated private key. Solana Program Derived Addresses (PDAs) are deliberately generated as off-curve points by appending a bump seed, guaranteeing that no private key exists and only the owning program can sign for the address.
Estes são os próximos conceitos que valem abrir se você quiser que este termo faça mais sentido dentro de um workflow real de Solana.
Entradas de glossário só ficam úteis quando estão conectadas. Esses links são o caminho mais curto para ideias adjacentes.
The elliptic curve digital signature algorithm used by Solana for all transaction signing. Ed25519 uses Curve25519 and produces 64-byte signatures with 32-byte public keys. Solana also provides an Ed25519 precompile program for on-chain signature verification within program logic.
A native Solana program (address: Ed25519SigVerify111111111111111111111111111) that enables batch verification of Ed25519 signatures within on-chain program logic. Unlike the runtime's built-in transaction signature verification, this precompile allows programs to verify arbitrary Ed25519 signatures over arbitrary data, useful for off-chain message verification, oracle attestations, and multi-party protocols. Multiple signatures can be verified in a single instruction.
In elliptic curve cryptography, a point is 'on-curve' if it satisfies the curve equation (e.g., Ed25519) and can serve as a valid public key with a corresponding private key. An 'off-curve' point does not lie on the curve and has no associated private key. Solana Program Derived Addresses (PDAs) are deliberately generated as off-curve points by appending a bump seed, guaranteeing that no private key exists and only the owning program can sign for the address.
Essas entradas vivem ao lado do termo atual e ajudam a página a parecer parte de um grafo maior, não um beco sem saída.
A clock mechanism that cryptographically proves the passage of time between events. PoH uses a sequential SHA-256 hash chain where each output becomes the next input, creating a verifiable ordering of events without requiring consensus. The leader produces ~400,000 hashes per slot (~400ms), and any validator can verify the sequence in parallel, enabling Solana's high throughput by removing the need for validators to agree on time.
Solana's custom BFT consensus algorithm built on top of Proof of History. Tower BFT uses PoH as a clock to reduce communication overhead in traditional PBFT from O(n²) to O(n). Validators vote on forks with exponentially increasing lockout periods—each consecutive vote doubles the lockout, making rollbacks progressively more expensive. A fork is finalized when it reaches supermajority (66.7%+ of stake).
A time window during which a designated leader validator can produce a block. Each slot lasts approximately 400 milliseconds. Slots are numbered sequentially from genesis and grouped into epochs of 432,000 slots (~2-3 days). Not every slot produces a block—a skipped slot means the leader was offline or too slow.
A set of entries produced by a leader during a single slot. A block contains transactions bundled into entries, each with a PoH hash proving ordering. Blocks are broken into shreds for network propagation via Turbine. Maximum block size is limited by compute units (48M CU cap per block) rather than byte size.