Welcome to the resource topic for 2009/315
Title:
Breaking RSA-based PIN Encryption with thirty ciphertext validity queries
Authors: N. P. Smart
Abstract:We show that one can recover the PIN from a standardised RSA-based PIN encryption algorithm from a small number of queries to a ciphertext validity checking oracle. The validity checking oracle required is rather special and we discuss whether such oracles could be obtained in the real world. Our method works using a minor extension to the ideas of Bleichenbacher and Manger, in particular we obtain information from negative, as well as positive, responses from the validity checking oracle.
ePrint: https://eprint.iacr.org/2009/315
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