Puncturable proxy re-encryption supporting to group messaging service
This work envisions a new encryption primitive for many-to-many paradigms such as group messaging systems. Previously, puncturable encryption (PE) was introduced to provide forward security for asynchronous messaging services. However, existing PE schemes were proposed only for one-to-one communicat...
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sg-smu-ink.sis_research-84152023-08-11T05:05:59Z Puncturable proxy re-encryption supporting to group messaging service PHUONG, Tran Viet Xuan SUSILO, Willy KIM, Jongkil YANG, Guomin LIU, Dongxi This work envisions a new encryption primitive for many-to-many paradigms such as group messaging systems. Previously, puncturable encryption (PE) was introduced to provide forward security for asynchronous messaging services. However, existing PE schemes were proposed only for one-to-one communication, and causes a significant overhead for a group messaging system. In fact, the group communication over PE can only be achieved by encrypting a message multiple times for each receiver by the sender’s device, which is usually suitable to restricted resources such as mobile phones or sensor devices. Our new suggested scheme enables to re-encrypt ciphertexts of puncturable encryption by a message server (i.e., a proxy) so that computationally heavy operations are delegated to the server who has more powerful processors and a constant power source. We then proposed a new Puncturable Proxy Re-Encryption (PPRE) scheme. The scheme is inspired by unidirectional proxy re-encryption (UPRE), which achieves forward secrecy through fine-grained revocation of decryption capability by integrating the PE scheme. This paper first presents a forward secure PPRE in the group messaging service. Our scheme is IND-CCA secure under 3-weak Decision Bilinear Diffie-Hellman Inversion assumption. 2019-09-01T07:00:00Z text application/pdf https://ink.library.smu.edu.sg/sis_research/7412 info:doi/10.1007/978-3-030-29959-0_11 https://ink.library.smu.edu.sg/context/sis_research/article/8415/viewcontent/Puncturable_Proxy_Re_Encryption_Supporting_to_Group_Messaging_Service.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Puncturable encryption Proxy Re-Encryption Group messaging service CCA security Information Security |
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Puncturable encryption Proxy Re-Encryption Group messaging service CCA security Information Security PHUONG, Tran Viet Xuan SUSILO, Willy KIM, Jongkil YANG, Guomin LIU, Dongxi Puncturable proxy re-encryption supporting to group messaging service |
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This work envisions a new encryption primitive for many-to-many paradigms such as group messaging systems. Previously, puncturable encryption (PE) was introduced to provide forward security for asynchronous messaging services. However, existing PE schemes were proposed only for one-to-one communication, and causes a significant overhead for a group messaging system. In fact, the group communication over PE can only be achieved by encrypting a message multiple times for each receiver by the sender’s device, which is usually suitable to restricted resources such as mobile phones or sensor devices. Our new suggested scheme enables to re-encrypt ciphertexts of puncturable encryption by a message server (i.e., a proxy) so that computationally heavy operations are delegated to the server who has more powerful processors and a constant power source. We then proposed a new Puncturable Proxy Re-Encryption (PPRE) scheme. The scheme is inspired by unidirectional proxy re-encryption (UPRE), which achieves forward secrecy through fine-grained revocation of decryption capability by integrating the PE scheme. This paper first presents a forward secure PPRE in the group messaging service. Our scheme is IND-CCA secure under 3-weak Decision Bilinear Diffie-Hellman Inversion assumption. |
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text |
author |
PHUONG, Tran Viet Xuan SUSILO, Willy KIM, Jongkil YANG, Guomin LIU, Dongxi |
author_facet |
PHUONG, Tran Viet Xuan SUSILO, Willy KIM, Jongkil YANG, Guomin LIU, Dongxi |
author_sort |
PHUONG, Tran Viet Xuan |
title |
Puncturable proxy re-encryption supporting to group messaging service |
title_short |
Puncturable proxy re-encryption supporting to group messaging service |
title_full |
Puncturable proxy re-encryption supporting to group messaging service |
title_fullStr |
Puncturable proxy re-encryption supporting to group messaging service |
title_full_unstemmed |
Puncturable proxy re-encryption supporting to group messaging service |
title_sort |
puncturable proxy re-encryption supporting to group messaging service |
publisher |
Institutional Knowledge at Singapore Management University |
publishDate |
2019 |
url |
https://ink.library.smu.edu.sg/sis_research/7412 https://ink.library.smu.edu.sg/context/sis_research/article/8415/viewcontent/Puncturable_Proxy_Re_Encryption_Supporting_to_Group_Messaging_Service.pdf |
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