{"id":195,"date":"2025-06-02T13:00:12","date_gmt":"2025-06-02T17:00:12","guid":{"rendered":"https:\/\/carleton.ca\/sci-lab\/?p=195"},"modified":"2025-11-11T16:27:08","modified_gmt":"2025-11-11T21:27:08","slug":"mahmoud-sayed-defends-his-phd","status":"publish","type":"post","link":"https:\/\/carleton.ca\/sci-lab\/2025\/mahmoud-sayed-defends-his-phd\/","title":{"rendered":"Mahmoud Sayed defends his PhD"},"content":{"rendered":"

Mahmoud Sayed<\/a> has successfully defended his PhD thesis with the title: Homomorphic Encryption Based Obfuscated Complex Queries System\u00a0<\/strong><\/em><\/p>\n

His work focused on a novel technique for implementing a privacy-preserving software application on remote untrusted server using a modified construction of the Fully Homomorphic Encryption of The Torus. With traditional encryption, the users are able to hide their data from the cloud server operator, but they cannot process it on the cloud without decrypting them. Homomorphic Encryption allows the cloud server to operate on encrypted data, but it does not hide the algorithm itself. With the proposed approach approach, the users are able to fully utilize the full computation power of cloud servers without revealing their data or processing algorithm: protect the data and the procedure.<\/p>\n

In addition, the proposed methodology allows also processing plain un-encrypted data on the cloud while hiding the algorithm and the result. This extends the list of applications to an interesting realm: GPS directions from online maps without revealing the traveler’s destination to the service provider, searching online without revealing the search criterial to the search engine, and much more!<\/p>\n

The examination committee consisted of:<\/p>\n\n\n\n\n\n\n\n\n
External Examiner<\/td>\nAmr Youssef, Concordia Institute for Information
\nSystems Engineering, Concordia University<\/td>\n<\/tr>\n
Internal Examiner<\/td>\nAshraf Matrawy, School of Computer Science,
\nCarleton University<\/td>\n<\/tr>\n
Member of Joint Institute<\/td>\nDavid Knox, Electrical Engineering & Computer
\nScience, University of Ottawa<\/td>\n<\/tr>\n
Member of Department<\/td>\nMohamed Atia, Systems & Computer Engineering, Carleton University<\/td>\n<\/tr>\n
Thesis Supervisor<\/td>\nMostafa Taha, Systems & Computer Engineering, Carleton University<\/td>\n<\/tr>\n
Chair of Defence<\/td>\nXiaoyu Wang, Electronics Engineering, Carleton
\nUniversity<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The defence committee nominated Mahmoud’s work for a university medal.<\/p>\n

Congratulations to Dr. Mahmoud Sayed!<\/p>\n

\"M.<\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Mahmoud Sayed has successfully defended his PhD thesis with the title: Homomorphic Encryption Based Obfuscated Complex Queries System\u00a0 His work focused on a novel technique for implementing a privacy-preserving software application on remote untrusted server using a modified construction of the Fully Homomorphic Encryption of The Torus. With traditional encryption, the users are able to […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","_mi_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[22],"tags":[],"yoast_head":"\nMahmoud Sayed defends his PhD - Secure Cryptographic Implementations Lab<\/title>\n<meta name=\"description\" content=\"Mahmoud Sayed has successfully defended his PhD thesis with the title: Homomorphic Encryption Based Obfuscated Complex Queries System\u00a0 His work focused on\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/carleton.ca\/sci-lab\/2025\/mahmoud-sayed-defends-his-phd\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"MAHMOUDSAYED3\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/carleton.ca\/sci-lab\/2025\/mahmoud-sayed-defends-his-phd\/\",\"url\":\"https:\/\/carleton.ca\/sci-lab\/2025\/mahmoud-sayed-defends-his-phd\/\",\"name\":\"Mahmoud Sayed defends his PhD - 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