Inventor · disambiguated record
Don Coppersmith
Also filed as: COPPERSMITH DON
22 granted patents·2,818 citations·filing 1983–2002
97Inventor score
Files withIBM22
Top patents by PatentIndex Score
22 records- 0198US5592553AAuthentication system using one-time passwordsIBM·Filed 1996·Granted Jan 7, 1997·565 cites·31 claims
- 0297US5796827ASystem and method for near-field human-body coupling for encrypted communication with identification cardsIBM·Filed 1996·Granted Aug 18, 1998·711 cites·17 claims
- 0396US6069955ASystem for protection of goods against counterfeitingIBM·Filed 1998·Granted May 30, 2000·234 cites·17 claims
- 0491US5661807AAuthentication system using one-time passwordsIBM·Filed 1995·Granted Aug 26, 1997·223 cites·14 claims
- 0590US4908861AData authentication using modification detection codes based on a public one way encryption functionIBM·Filed 1987·Granted Mar 13, 1990·148 cites·21 claims
- 0689US5454039ASoftware-efficient pseudorandom function and the use thereof for encryptionIBM·Filed 1993·Granted Sep 26, 1995·97 cites·17 claims
- 0785US4564944AError correcting schemeIBM·Filed 1983·Granted Jan 14, 1986·32 cites·13 claims
- 0883US7100050B1Secured signal modification and verification with privacy controlIBM·Filed 2000·Granted Aug 29, 2006·22 cites·4 claims
- 0980US4675650ARun-length limited code without DC levelIBM·Filed 1985·Granted Jun 23, 1987·36 cites·15 claims
- 1079US6256736B1Secured signal modification and verification with privacy controlIBM·Filed 1998·Granted Jul 3, 2001·53 cites·12 claims
- 1173US7236592B2Efficient stream cipher system and methodIBM·Filed 2002·Granted Jun 26, 2007·18 cites·20 claims
- 1272US6243470B1Method and apparatus for advanced symmetric key block cipher with variable length key and blockIBM·Filed 1998·Granted Jun 5, 2001·83 cites·47 claims
- 1372US5835597ASoftware-efficient pseudorandom function and the use thereof for decryptionIBM·Filed 1997·Granted Nov 10, 1998·44 cites·16 claims
- 1470US6996543B1System for protection of goods against counterfeitingIBM·Filed 1998·Granted Feb 7, 2006·150 cites·16 claims
- 1569US6185679B1Method and apparatus for a symmetric block cipher using multiple stages with type-1 and type-3 feistel networksIBM·Filed 1998·Granted Feb 6, 2001·66 cites·25 claims
- 1668US6192129B1Method and apparatus for advanced byte-oriented symmetric key block cipher with variable length key and blockIBM·Filed 1998·Granted Feb 20, 2001·67 cites·27 claims
- 1767US6185304B1Method and apparatus for a symmetric block cipher using multiple stagesIBM·Filed 1998·Granted Feb 6, 2001·59 cites·29 claims
- 1867US5768390ACryptographic system with maskingIBM·Filed 1997·Granted Jun 16, 1998·60 cites·25 claims
- 1963US6189095B1Symmetric block cipher using multiple stages with modified type-1 and type-3 feistel networksIBM·Filed 1998·Granted Feb 13, 2001·52 cites·35 claims
- 2060US6301362B1Method and apparatus for cryptographically transforming an input block into an output blockIBM·Filed 1998·Granted Oct 9, 2001·45 cites·16 claims
- 2154US6101275AMethod for finding a best test for a nominal attribute for generating a binary decision treeIBM·Filed 1998·Granted Aug 8, 2000·30 cites·17 claims
- 2254US5675652AComputer readable device implementing a software-efficient pseudorandom function encryptionIBM·Filed 1995·Granted Oct 7, 1997·23 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →