Existential forgery is a weak, message related forgery against a cryptographic digital signature schemes. Given a victim's verifying key, an existential forgery is successful, if the attacker finds a signature s for any new message m, such that the signature s is valid for m with respect to the victim's verifying key. The message m need not be sensical or useful in any obvious sense.
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© 2005 International Federation for Information Processing
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Bleumer, G. (2005). Existential Forgery. In: van Tilborg, H.C.A. (eds) Encyclopedia of Cryptography and Security. Springer, Boston, MA . https://doi.org/10.1007/0-387-23483-7_148
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DOI: https://doi.org/10.1007/0-387-23483-7_148
Publisher Name: Springer, Boston, MA
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