Codes with the Identifiable Parent Property (IPP codes) form a very useful tool in traitor tracing schemes since they guarantee (with probability 1) identification of at least one of the traitors. We consider a natural generalization of IPP codes, namely codes for which this property holds with probability close to 1. A probabilistic
version of the IPP problem has been studied under the name of collusion-secure digital fingerprinting codes. We point out that, somewhat surprisingly, fingerprintin...
Fernandez, M., Kabatiansky, G., Moreira, J. Almost IPP-codes or provably secure digital fingerprinting codes. A: IEEE International Symposium on Information Theory. "2015 IEEE International Symposium on Information Theory (ISIT 2015): Hong Kong: 14-19 June 2015". Hong Kong: Institute of Electrical and Electronics Engineers (IEEE), 2015, p. 1595-1599.