October 2025
Intermediate to advanced
570 pages
16h 46m
Portuguese (Portugal, Brazil)
book
Dominando o Ethereum, 2nd Edition
by Carlo Parisi, Alessandro Mazza, Niccolo Pozzolini, Gavin Wood, Andreas M. Antonopoulos
Content preview from Dominando o Ethereum, 2nd Edition
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Capítulo 9. Segurança de contratos inteligentes
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A segurança é uma das considerações mais importantes ao escrever contratos inteligentes. No campo da programação de contratos inteligentes, os erros são caros e facilmente explorados. Neste capítulo, examinaremos as práticas recomendadas de segurança e os padrões de projeto, bem como os antipadrões de segurança, que são práticas e padrões que podem introduzir vulnerabilidades nos contratos inteligentes.
Como em outros programas, um contrato inteligente executará exatamente o que está escrito, o que nem sempre é o que o programador pretendia. Além disso, todos os contratos inteligentes são públicos, e qualquer usuário pode interagir com eles simplesmente criando uma transação. Qualquer vulnerabilidade pode ser explorada, e as perdas são quase sempre impossíveis de recuperar. Portanto, é fundamental que você siga as práticas recomendadas e use padrões de design bem testados.
Pense no desenvolvimento robusto como a primeira camada em um "modelo de queijo suíço" de segurança. Cada camada de proteção age como um corte de queijo suíço: nenhuma é perfeita por si só, mas juntas criam uma defesa mais forte. A primeira camada é seguir práticas de desenvolvimento sólidas: usar padrões de projeto confiáveis, escrever códigos claros e intencionais e evitar ativamente as armadilhas conhecidas. Essa camada fundamental nos dá o ...
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