preimage attack
[ˈpriː.ɪmɪdʒ əˈtæk]
nounpl: preimage attacks
ataque de pré-imagem
1. A cryptographic attack in which an attacker attempts to find an input (message) that produces a specific hash value, without knowing the original input
A preimage attack on a cryptographic hash function would allow an attacker to forge digital signatures.
Um ataque de pré-imagem em uma função hash criptográfica permitiria que um invasor falsificasse assinaturas digitais.
2. In formal mathematics, finding an element in the domain that maps to a given element in the codomain of a function
The security of the system depends on the computational infeasibility of executing a preimage attack.
A segurança do sistema depende da impossibilidade computacional de executar um ataque de pré-imagem.
This is specialized cryptographic terminology used uniformly across international technical communities, academic institutions, and cybersecurity sectors in both Brazil and Portugal. The Portuguese term 'ataque de pré-imagem' is the established technical translation, though English is often retained in technical documentation. Understanding this concept is essential in cybersecurity education and professional practice in both countries.
Related Idioms & Phrases
to mount a preimage attack
vulnerable to preimage attacks
preimage attack resistance
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