Information: Join today and make your research activities more affordable! Technical workshop participation fees and annual registration fees are available at member rates.
Notice: [Important] Announcement of Changes to Registration Fee Payment and Manuscript Upload Procedures for IEICE Technical Meetings
IEICE Technical Committee Submission System
Conference Paper's Information		 Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2026-03-03 10:20
Formal verification of SFrame with Tamarin
Keishi Hashiba, Atsushi Tanaka, Takanori Isobe (U Osaka) ICSS2025-87
Abstract (in Japanese) (See Japanese page) 
(in English) SFrame is a protocol primarily used for web conference communications, running on top of RTP/SRTP to enable E2EE communication between participants. While a manual cryptographic evaluation of SFrame's security has already been performed by Isobe et al., formal or comprehensive verification has not yet been conducted.
In this study, we formalized the SFrame protocol using the formal verification tool Tamarin Prover and performed formal verification of its general security requirements.
We showed that it does not meet several security requirements, including those pointed out in RFC 9605, such as the inability to recognize spoofed packets and the inability to match the order of multiple packets.
Keyword (in Japanese) (See Japanese page) 
(in English) SFrame / Tamarin Prover / Formal verification / RFC 9605 / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 381, ICSS2025-87, pp. 9-16, March 2026.
Paper # ICSS2025-87 
Date of Issue 2026-02-24 (ICSS) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF ICSS2025-87

Conference Information
Committee ICSS IPSJ-SPT  
Conference Date 2026-03-03 - 2026-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Prefectural Museum & Art Museum 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Security, Trust, etc. 
Paper Information
Registration To ICSS 
Conference Code 2026-03-ICSS-SPT 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Formal verification of SFrame with Tamarin 
Sub Title (in English)  
Keyword(1) SFrame  
Keyword(2) Tamarin Prover  
Keyword(3) Formal verification  
Keyword(4) RFC 9605  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Keishi Hashiba  
1st Author's Affiliation The University of Osaka (U Osaka)
2nd Author's Name Atsushi Tanaka  
2nd Author's Affiliation The University of Osaka (U Osaka)
3rd Author's Name Takanori Isobe  
3rd Author's Affiliation The University of Osaka (U Osaka)
4th Author's Name  
4th Author's Affiliation ()
5th Author's Name  
5th Author's Affiliation ()
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
21st Author's Name  
21st Author's Affiliation ()
22nd Author's Name  
22nd Author's Affiliation ()
23rd Author's Name  
23rd Author's Affiliation ()
24th Author's Name  
24th Author's Affiliation ()
25th Author's Name  
25th Author's Affiliation ()
26th Author's Name / /
26th Author's Affiliation ()
()
27th Author's Name / /
27th Author's Affiliation ()
()
28th Author's Name / /
28th Author's Affiliation ()
()
29th Author's Name / /
29th Author's Affiliation ()
()
30th Author's Name / /
30th Author's Affiliation ()
()
31st Author's Name / /
31st Author's Affiliation ()
()
32nd Author's Name / /
32nd Author's Affiliation ()
()
33rd Author's Name / /
33rd Author's Affiliation ()
()
34th Author's Name / /
34th Author's Affiliation ()
()
35th Author's Name / /
35th Author's Affiliation ()
()
36th Author's Name / /
36th Author's Affiliation ()
()
Speaker Author-1 
Date Time 2026-03-03 10:20:00 
Presentation Time 20 minutes 
Registration for ICSS 
Paper # ICSS2025-87 
Volume (vol) vol.125 
Number (no) no.381 
Page pp.9-16 
#Pages 8 
Date of Issue 2026-02-24 (ICSS) 

[Return to Top Page]

[Return to IEICE Web Page]
The Institute of Electronics, Information and Communication Engineers (IEICE), Japan