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Key Recovery: Inert and Public (2016)
Conference Proceeding
Boyd, C., Boyen, X., Carr, C., & Haines, T. (2016). Key Recovery: Inert and Public. In Paradigms in Cryptology - Mycrypt 2016. Malicious and Exploratory Cryptology - Second International Conference, Mycrypt 2016, Kuala Lumpur, Malaysia, December 1-2, 2016, Revised Selected Papers, (111-126). https://doi.org/10.1007/978-3-319-61273-7_6

We propose a public key infrastructure framework, inspired by modern distributed cryptocurrencies, that allows for tunable key escrow, where the availability of key escrow is only provided under strict conditions and enforced through cryptographic me... Read More about Key Recovery: Inert and Public.

CARIBE: Cascaded IBE for Maximum Flexibility and User-Side Control (2016)
Conference Proceeding
Hale, B., Carr, C., & Gligoroski, D. (2016). CARIBE: Cascaded IBE for Maximum Flexibility and User-Side Control. https://doi.org/10.1007/978-3-319-61273-7_19

Mass surveillance and a lack of end-user encryption, coupled with a growing demand for key escrow under legal oversight and certificate authority security concerns, raise the question of the appropriateness of continued general dependency on PKI. Und... Read More about CARIBE: Cascaded IBE for Maximum Flexibility and User-Side Control.

Fair Client Puzzles from the Bitcoin Blockchain (2016)
Conference Proceeding
Boyd, C., & Carr, C. (2016). Fair Client Puzzles from the Bitcoin Blockchain. In J. K. Liu, & R. Steinfeld (Eds.), https://doi.org/10.1007/978-3-319-40253-6_10

Client puzzles have been proposed as a mechanism for proving legitimate intentions by providing “proofs of work”, which can be applied to discourage malicious usage of resources. A typical problem of puzzle constructions is the difference in expected... Read More about Fair Client Puzzles from the Bitcoin Blockchain.

Zero-Knowledge Proof of Decryption for FHE Ciphertexts. (2018)
Journal Article
Carr, C., Costache, A., Davies, G. T., Gjøsteen, K., & Strand, M. (2018). Zero-Knowledge Proof of Decryption for FHE Ciphertexts. (00) Journal Not Listed,

A Guide to Fully Homomorphic Encryption (2015)
Journal Article
Armknecht, F., Boyd, C., Carr, C., Gjøsteen, K., Jäschke, A., Reuter, C. A., & Strand, M. (2015). A Guide to Fully Homomorphic Encryption. (00) Journal Not Listed, 2015, 1192

Fully homomorphic encryption (FHE) has been dubbed the holy grail of cryptography, an elusive goal which could solve the IT world’s problems of security and trust. Research in the area exploded after 2009 when Craig Gentry showed that FHE can be real... Read More about A Guide to Fully Homomorphic Encryption.