Chun-Yuan Hsiao Chi-Jen Lu Leonid Reyzin Conditional Computational Entropy, or Toward Separating Pseudoentropy from Compressibility. 169-186 2007 conf/eurocrypt/2007 EUROCRYPT http://dx.doi.org/10.1007/978-3-540-72540-4_10 db/conf/eurocrypt/eurocrypt2007.html#HsiaoLR07