Key-spoofing attacks on nested signature blocks

B. Christianson, M.R. Low

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


For a given signature block and any other data, there exists a key which produces the same signature block. The threat that this poses to schemes which use nested signature blocks as pointers to other tokens is identified, using a theft-proof capability mechanism as an illustration. A modification to public key certificates is then proposed to eliminate this threat.
Original languageEnglish
Pages (from-to)1043-1044
JournalElectronics Letters
Issue number13
Publication statusPublished - 1995


  • public key cryptography

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