Distinguishing Attacks on the Stream Cipher Py. - Souradyuti Paul; Bart Preneel; Gautham Sekar (FSE, 2006)

Improved Meet-in-the-Middle Attacks on Reduced-Round DES. - Orr Dunkelman; Gautham Sekar; Bart Preneel (INDOCRYPT, 2007)

Related-Key Attacks on the Py-Family of Ciphers and an Approach to Repair the Weaknesses. - Gautham Sekar; Souradyuti Paul; Bart Preneel (INDOCRYPT, 2007)

Weaknesses in the Pseudorandom Bit Generation Algorithms of the Stream Ciphers TPypy and TPy. - Gautham Sekar; Souradyuti Paul; Bart Preneel (IACR Cryptol. ePrint Arch., 2007)

New Weaknesses in the Keystream Generation Algorithms of the Stream Ciphers TPy and Py. - Gautham Sekar; Souradyuti Paul; Bart Preneel (IACR Cryptol. ePrint Arch., 2007)

New Attacks on the Stream Cipher TPy6 and Design of New Ciphers the TPy6-A and the TPy6-B. - Gautham Sekar; Souradyuti Paul; Bart Preneel (IACR Cryptol. ePrint Arch., 2007)

Correlated Keystreams in Moustique. - Emilia Käsper; Vincent Rijmen; Tor E. Bjørstad; Christian Rechberger; Matthew J. B. Robshaw; Gautham Sekar (AFRICACRYPT, 2008)

Cryptanalysis of the ESSENCE Family of Hash Functions. - Nicky Mouha; Gautham Sekar; Jean-Philippe Aumasson; Thomas Peyrin; Søren S. Thomsen; Meltem Sönmez Turan; Bart Preneel (Inscrypt, 2009)

A New Approach to chi2 Cryptanalysis of Block Ciphers. - Jorge Nakahara Jr.; Gautham Sekar; Daniel Santana de Freitas; Chang Chiann; Ramon Hugo de Souza; Bart Preneel (ISC, 2009)

Improved Distinguishing Attacks on HC-256. - Gautham Sekar; Bart Preneel (IWSEC, 2009)

Meet-in-the-Middle Attacks on Reduced-Round XTEA. - Gautham Sekar; Nicky Mouha; Vesselin Velichkov; Bart Preneel (CT-RSA, 2011)

Practical Attacks on a Cryptosystem Proposed in Patent WO/2009/066313. - Gautham Sekar; Bart Preneel (WISA, 2011)

Cryptanalysis and Design of Symmetric Cryptographic Algorithms (Cryptanalyse en ontwerp van symmetrische cryptografische algoritmen). - Gautham Sekar (2011)

The Stream Cipher Core of the 3GPP Encryption Standard 128-EEA3: Timing Attacks and Countermeasures. - Gautham Sekar (IACR Cryptol. ePrint Arch., 2012)

Challenging the increased resistance of regular hash functions against birthday attacks. - Nicky Mouha; Gautham Sekar; Bart Preneel (J. Math. Cryptol., 2012)

Practical (Second) Preimage Attacks on TCS_SHA-3. - Gautham Sekar; Soumyadeep Bhattacharya (IACR Cryptol. ePrint Arch., 2013)

Side Channel Cryptanalysis of Streebog. - Gautham Sekar (SSR, 2015)

Distinguishing Attacks on (Ultra-)Lightweight WG Ciphers. - Mabin Joseph; Gautham Sekar; R. Balasubramanian (LightSec, 2016)

Practical (Second) Preimage Attacks on the TCS_SHA-3 Family of Cryptographic Hash Functions. - Gautham Sekar; Soumyadeep Bhattacharya (J. Inf. Process. Syst., 2016)

Side channel analysis of SPECK. - Mabin Joseph; Gautham Sekar; R. Balasubramanian (J. Comput. Secur., 2020)

On the Security of the Stream Ciphers RCR-64 and RCR-32. - Mabin Joseph; Gautham Sekar; R. Balasubramanian; G. Venkiteswaran (Comput. J., 2022)

Revisiting the Software-Efficient Stream Ciphers RCR-64 and RCR-32. - Mabin Joseph; Gautham Sekar; R. Balasubramanian (Comput. J., 2024)

Fault-assisted side-channel analysis of HMAC-Streebog. - Gautham Sekar; Mabin Joseph; R. Balasubramanian (Cryptologia, 2025)