TY - JOUR T1 - Secret Agents Leave Big Footprints: How to Plant a Cryptographic Trapdoor, and Why You Might Not Get Away with It PY - 2003/01/01 AU - Clark JA AU - Jacob JL AU - Stepney S ED - DO - DOI: 10.1007/3-540-45110-2_100 PB - Springer Berlin Heidelberg SP - 2022 EP - 2033 Y2 - 2024/12/22 ER -