Process State and Progress Visualization Using Self-Organizing Map. - Risto M. Hakala; Timo Similä; Miki Sirola; Jukka Parviainen (IDEAL, 2006)

A Key-Recovery Attack on SOBER-128. - Kaisa Nyberg; Risto M. Hakala (Symmetric Cryptography, 2007)

Linear Distinguishing Attack on Shannon. - Risto M. Hakala; Kaisa Nyberg (ACISP, 2008)

Cache-Timing Template Attacks. - Billy Bob Brumley; Risto M. Hakala (ASIACRYPT, 2009)

A multidimensional linear distinguishing attack on the Shannon cipher. - Risto M. Hakala; Kaisa Nyberg (Int. J. Appl. Cryptogr., 2009)

Consecutive S-box Lookups: A Timing Attack on SNOW 3G. - Billy Bob Brumley; Risto M. Hakala; Kaisa Nyberg; Sampo Sovio (ICICS, 2010)

On the Nonlinearity of Discrete Logarithm in mathbb F2n mathbb F_{2^n}. - Risto M. Hakala; Kaisa Nyberg (SETA, 2010)

A practical distinguisher for the Shannon cipher. - Zahra Ahmadian; Javad Mohajeri; Mahmoud Salmasizadeh; Risto M. Hakala; Kaisa Nyberg (J. Syst. Softw., 2010)

Estimating Resistance against Multidimensional Linear Attacks: An Application on DEAN. - Risto M. Hakala; Atle Kivelä; Kaisa Nyberg (Inscrypt, 2012)

An upper bound for the linearity of Exponential Welch Costas functions. - Risto M. Hakala (Finite Fields Their Appl., 2012)

Results on Linear Models in Cryptography ; Lineaaristen mallien tuloksia kryptografiassa. - Risto M. Hakala (2013)