Original: Notions of security In their foundational paper, Goldwasser, Micali, and Rivest lay out a hierarchy of attack models against digital signatures: In a key-only attack, the attacker is only given the public verification key.
Simplified: In their foundational paper, Goldwasser, Micali, and Rivest lay out a hierarchy of attack models against digital signatures: In a key-only attack, the attacker is only given the public verification key.