Forged fingerprints and PGP architecture
Tämän pro gradu-tutkielman tavoitteena on selvittää, että mikä tapa tuottaa PGP sormenjälkiä on tehokkain. Tämä tehdään siitä syystä, että halutaan löytää mahdollisimman tehokas tapa luoda samankaltainen sormenjälki kuin kohteen julkisen avaimen sormenjälki. Sormenjäljet lasketaan 2048-bittisistä RSA avaimesta neljällä eri tavalla, jotta selviäisi mikä niistä on aika- ja tallennustila-tehokkain. RSA useammalla kuin kahdella alkuluvulla toteutettuna näyttää olevan nopein ja vievän vähiten tallennustilaa olettaen, että alkulukujen määrä valitaan tarkoin. The idea of this thesis is to find the most efficient way of generating new PGP fingerprints. This is done in order to try and create a fingerprint that is similar to a fingerprint of the target. Fingerprints from 2048-bit RSA keys are generated in four different ways to determine which one is the most time and space efficient. Multi-prime RSA seems to be the fastest and most space efficient when the number of primes that make-up RSA is chosen carefully.
Keywords
Metadata
Show full item recordCollections
- Pro gradu -tutkielmat [29620]
Related items
Showing items with similar title or keywords.
-
Towards a "fingerprint" of paper network; separating forgeries from genuine by the properties of fibre structure
Takalo, Jouni; Timonen, Jussi; Sampo, Jouni; Rantala, Maaria; Siltanen, Samuli; Lassas, Matti (SPIE - International Society for Optical Engineering, 2014)A novel method is introduced for distinguishing counterfeit banknotes from genuine samples. The method is based on analyzing differences in the networks of paper fibers. The main tool is a curvelet-based algorithm for ... -
Search for fingerprints of tetrahedral symmetry in 156Gd
Doan, Q.T.; Curien, D.; Stézowski, O.; Dudek, J.; Mazurek, K.; Gózdz, A.; Piot, J.; Duchêne, G.; Gall, B.; Molique, H.; Richet, M.; Medina, P.; Guinet, D.; Redon, N.; Schmitt, Ch; Jones, P.; Peura, P.; Ketelhut, S.; Nyman, M.; Jakobsson, U.; Greenlees, P. T.; Julin, R.; Juutinen, S.; Rahkila, P.; Maj, A.; Zuber, K.; Bednarczyk, P.; Schunck, N.; Dobaczewski, J.; Astier, A.; Deloncle, I.; Verney, D.; de Angelis, G.; Gerl, J. (Jagellonian University, 2009)Theoretical predictions suggest the presence of tetrahedral symmetry as an explanation for the vanishing intra-band E2 transitions at the bottom of the odd-spin negative-parity band in 156Gd. The present study reports on ... -
Cluster-Based RF Fingerprint Positioning Using LTE and WLAN Outdoor Signals
Mondal, Riaz; Ristaniemi, Tapani; Turkka, Jussi (IEEE, 2015)In this paper we evaluate user-equipment (UE) positioning performance of three cluster-based RF fingerprinting methods using LTE and WLAN signals. Real-life LTE and WLAN data were collected for the evaluation purpose ... -
An efficient grid-based RF fingerprint positioning algorithm for user location estimation in heterogeneous small cell networks
Mondal, Riaz; Turkka, Jussi; Ristaniemi, Tapani (IEEE, 2014)This paper proposes a novel technique to enhance the performance of grid-based Radio Frequency (RF) fingerprint position estimation framework. First enhancement is an introduction of two overlapping grids of training ... -
Improving RF Fingerprinting Methods by Means of D2D Communication Protocol
Khandker, Syed; Torres-Sospedra, Joaquín; Ristaniemi, Tapani (MDPI AG, 2019)Radio Frequency (RF) fingerprinting is widely applied for indoor positioning due to the existing Wi-Fi infrastructure present in most indoor spaces (home, work, leisure, among others) and the widespread usage of smartphones ...