< with a clickable list
of publications.
Regular email: **mjos@iki.fi**. PGP keys for general use at:
[**https://keybase.io/mjos**](https://keybase.io/mjos).
Secure mobile account: **mjos@mjos.fi**. Protonmail PGP keys here:
[**mjos@mjos.fi.asc**](https://mjos.fi/mjos@mjos.fi.asc).
I keep some software at
[**https://github.com/mjosaarinen**](https://github.com/mjosaarinen).
## Work
Until very recently I worked as a Senior Principal Security Engineer with
[ARM](https://www.arm.com/) in
[Cambridge, UK](https://goo.gl/maps/ZJu5zoAJMX62).
I am currently transitioning back to academia.
## Research Interests
Focus of my current research is in next-generation and quantum resistant
cryptographic algorithms.
The [NIST Post-Quantum Crypto Project](http://csrc.nist.gov/groups/ST/post-quantum-crypto/)
forms the foundation for my research this year, with submission of candidate
algorithms at the end of November. As can be seen from my recent publications,
I shifted my main research interests from symmetric cryptanalysis to lattice
algorithms already a year or two ago.
[HILA5](https://mjos.fi/hila5) is an official candidate the NIST PQC effort.
The submission package lives in
[https://github.com/mjosaarinen/hila5](https://github.com/mjosaarinen/hila5).
## Upcoming preprints and publications from recent years (i.e. this decade)
* [**HILA5: On Reliability, Reconciliation, and Error Correction for
Ring-LWE Encryption**](http://eprint.iacr.org/2017/424).
Proc. SAC 2017, LNCS 10719, pp. 192-212, Springer, 2018.
* [**Arithmetic Coding and Blinding Countermeasures for
Lattice Signatures**](http://rdcu.be/oHun).
To appear in
[J. Cryptographic Engineering](http://link.springer.com/journal/13389),
Springer 2017.
* [**Ring-LWE Ciphertext Compression and Error Correction: Tools for
Lightweight Post-Quantum Cryptography**](http://dx.doi.org/10.1145/3055245.3055254).
Proc. IoTPTS '17, pp. 15-22, ACM 2017.
* [**The BRUTUS Automatic Cryptanalytic Framework**](http://dx.doi.org/10.1007/s13389-015-0114-1).
J. Cryptographic Engineering, Vol. 6, No. 1, pp 75-82. Springer 2016.
* [**The BLAKE2 Cryptographic Hash and Message Authentication Code
(MAC)**](https://tools.ietf.org/html/rfc7693).
*With Jean-Philippe Aumasson.* RFC 7693. IETF 2015.
* [**WHIRLBOB, the Whirlpool based Variant of STRIBOB**](http://dx.doi.org/10.1007/978-3-319-26502-5_8).
*With Billy B. Brumley.* Proc. NordSec 2015, LNCS 9417, pp. 106-122.
Springer 2015.
* [**STRIBOB: Authenticated Encryption from GOST R
34.11-2012 LPS Permutation**](http://mi.mathnet.ru/eng/mvk146).
Mat. Vopr. Kriptogr., Vol. 6, No. 2, pp. 67-78.
Steklov Mathematical Institute of RAS 2015.
* [**Simple AEAD Hardware Interface (SAEHI) in a SoC: Implementing
an On-Chip Keyak/WhirlBob
Coprocessor**](http://dx.doi.org/10.1145/2666141.2666144).
Proc. TrustED '14, pp. 51-56. ACM 2014.
* [**CBEAM: Efficient Authenticated Encryption from Feebly
One-Way Phi Functions**](http://dx.doi.org/10.1007/978-3-319-04852-9_13).
Proc. CT-RSA 2014. LNCS 8366, pp. 251-269. Springer 2014.
* [**Beyond Modes: Building a Secure Record Protocol from a
Cryptographic Sponge Permutation**](http://dx.doi.org/10.1007/978-3-319-04852-9_14).
Proc. CT-RSA 2014. LNCS 8366, pp. 270-285. Springer 2014.
* [**Developing a Grey Hat C2 and RAT for APT Security Training and
Assessment**](https://mjos.fi/doc/saarinen_hrpaper.pdf).
For GreHack 2013 Hacking Conference. Grenoble, France, 15 November 2013.
* [**Related-Key Attacks Against Full Hummingbird-2**](http://dx.doi.org/10.1007/978-3-662-43933-3_24).
Proc. FSE 2013. LNCS 8424, pp. 467-482. Springer 2013.
* [**A Do-It-All-Cipher for RFID: Design Requirements (Extended
Abstract)**](https://eprint.iacr.org/2012/317).
*With Daniel Engels.* ePrint 2012/317, IACR 2012.
* [**The BLUEJAY Ultra-Lightweight Hybrid Cryptosystem**](http://dx.doi.org/10.1109/SPW.2012.11).
Proc. TrustED 2012 (SPW 2012), pp. 27-32. IEEE Computer Society 2012.
* [**Cycling Attacks on GCM, GHASH and Other Polynomial MACs and Hashes**](http://dx.doi.org/10.1007/978-3-642-34047-5_13).
Proc. FSE 2012. LNCS 7549, pp. 216-225. Springer 2012.
* [**Practical Attack on 8 Rounds of the Lightweight Block Cipher KLEIN**](http://dx.doi.org/10.1007/978-3-642-25578-6_11).
*With Jean-Philippe Aumasson and Maria Naya-Plasencia.*
Proc. INDOCRYPT 2011. LNCS 7107, pp. 134-145. Springer 2011.
* [**Cryptographic Analysis of All 4 x 4 - Bit S-Boxes**](http://dx.doi.org/10.1007/978-3-642-28496-0_7).
Proc. SAC 2011. LNCS 7118, pp. 118-133. Springer 2012.
* [**The Hummingbird-2 Lightweight Authenticated Encryption Algorithm**](http://dx.doi.org/10.1007/978-3-642-25286-0_2).
*With Danel Engels, Peter Schweitzer, and Eric M. Smith*.
Proc. RFIDSec 2011. LNCS 7055, pp. 19-31, Springer 2012.
* [**Cryptanalysis of Hummingbird-1**](http://dx.doi.org/10.1007/978-3-642-21702-9_19).
Proc. FSE 2011. LNCS 6733, pp. 328-341, Springer 2011.
]]>