TLS/sRTP Voice Recording AddPac Technology

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1 Secure IP Telephony Solution (TLS/SRTP Protocol) TLS/sRTP Voice Recording AddPac Technology 2015, Sales and Marketing

2 Contents Secure IP Telephony Service Diagram Secure VoIP Protocol & Algorithm (TLS & SRTP) TLS/SRTP based Voice Recording Schemes Centralized Voice Recording Scheme Distributed Voice Recording Scheme Smart Digital Voice Recording Program 2

3 Secure IP Telephony Network Diagram Between External Users : Security Enable : Signaling (TLS/SIP), SRTP Between Internal Users : (Legacy) Security Disable : Signaling (UDP/SIP), SRTP Between Internal and External User : Security Enable : Signaling (TLS/SIP), SRTP Between Internal Users : (IP-PBX User) Security Enable : Signaling (TLS/SIP), SRTP Analog Phone, Digital Key Phone (a) Branch Office PBX Legacy PBX CA (Certificate Authority) AP1950S Secure VoIP Gateway Headquarters (b) Internet (c) Telecommuter (d) Secure IP Phone, IP Video Phone Secure IP-PBX Signaling RTP/SRTP CRLs/OCSP (a) (b) (c) (d) Internal - Internal Call (no Security) Internal - External Call (TLS/SRTP) External - External Call (TLS/SRTP) Internal Internal Call (TLS/SRTP) 3

4 Secure IP Telephony Service Features 4

5 TLS Features for Secure VoIP Service Support for TLS 1.1, TLS 1.0 and SSL 3.0 protocols Since SSL 2.0 is insecure it is not supported. TLS 1.2 is supported but disabled by default. Support for TLS extensions: server name indication, max record size, opaque PRF input, etc. Support for authentication using the SRP protocol. Support for authentication using both X.509 certificates and OpenPGP keys. Support for TLS Pre-Shared-Keys (PSK) extension. Support for Inner Application (TLS/IA) extension. Support for X.509 and OpenPGP certificate handling. Support for X.509 Proxy Certificates (RFC 3820). Supports all the strong encryption algorithms (including SHA-256/384/512), including Camellia (RFC 4132). Supports compression (optional). CRLs CRL (Certificate Revocation List) OCSP (Online Certificate Status Protocol, RFC2560) (via HTTP) Hash Algorithm : SHA-1, MD5 5

6 SSL/TLS Protocol Layers Application Application Application Sockets TCP IP SSL/TLS TCP IP Fragmentation Compression Authentication Encryption TCP IP 6

7 SSL/TLS Handshake AP1950S Secure VoIP Gateway Client Client Hello * optional Server Server Hello Certificate * ServerKeyExchange * CertificateRequest * Server HelloDone Certificate * ServerKeyExchange * CertificateRequest * * optional ChangeCipherSpec Finished o ChangeCipherSpec o encrypted Finished o Application Data o Application Data o 7

8 TLS Comparison with OpenSSL Protocol Support SSLv2.0 SSLv3.0 TLSv1.0 TLSv1.1 TLSv1.2 AddPac No Yes Yes Yes Yes OpenSSL Yes Yes Yes No No Key Exchange Algorithms Anon- RSA RSA RSA Export DHE- RSA DHE- DSS SRP- DSS SRP- RSA SRP PSK ECC AddPac Yes Yes Yes Yes Yes Yes Yes Yes Yes No OpenSSL Yes Yes Yes Yes Yes No No No No Yes Encryption Algorithms (*1) 40-bit encryption is insecure AES CBC AES CBC 3DES CBC DES CBC RC CBC RC4-40(* 1 ) RC2-40(* 1 ) Camellia SEED ARIA AddPac Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes OpenSSL Yes Yes Yes Yes Yes Yes Yes Yes Yes No 8

9 SRTP (Secure( Real-time Transport Protocol) ) Features RFC4568, Standards Track, Session Description Protocol (SDP) Security Descriptions for Media Streams RFC 3711, Proposed Standard, The Secure Real-time Transport Protocol (SRTP) RFC 3551, Standard 65, RTP Profile for Audio and Video Conferences with Minimal Control RFC 3550, Standard 64, RTP: A Transport Protocol for Real-Time Applications RFC 2104, Informational, HMAC: Keyed-Hashing for Message Authentication Cipher Algorithm : ARIA, SEED, AES, DES(*), 3DES(*) * Support at AddPac Specific SRTP 9

10 TLS/SRTP based Voice Recording Schemes 10

11 TLS/SRTP based Voice Recording Scheme Centralized Voice Recording Scheme Features IP-PBX software should be modified and developed for TLS/SRTP based Voice Recording Voice Recording Proxy Server is necessary and should be developed d Performance Issues must be considered Installation and Management is easy and simple Small-Scale Application Distributed ib t Voice Recording Scheme Features Large-Scale Application Voice Recording Proxy Server is necessary and should be developed Each site must have a voice recording proxy server IP-PBX Software is no change 11

12 Centralized Voice Recording Scheme IP-PBX PBX TLS/SIP Signaling TLS/SIP Signaling Internal IPC Channel For Call Information IP Phone RTP/sRTP RTP/sRTP IP Phone Voice Recording Proxy Server Voice Recording Server Smart Digital Voice Manager S/W 12

13 Distributed Voice Recording Scheme (Case A) IP-PBX Site A TLS/SIP Signaling Voice Recording Proxy Server TLS/SIP Signaling Site B Voice Recording Proxy Server srtp Internal IPC Channel Copied RTP Copied RTP Voice Recording Server Smart Digital Voice Manager S/W 13

14 Distributed Voice Recording Scheme (Case B) IP-PBX Site A Site B TLS/SIP Signaling Voice Recording Proxy Server TLS/SIP Signaling srtp Copied Internal Internal RTP IPC Channel Copied RTP IPC Channel Voice Recording Server Smart Digital Voice Manager S/W Voice Recording Server 14

15 Smart Digital it Voice Recording Program 15

16 Contents Overview Smart Digital Voice Recorder Manager Smart File Manager for Secondary Backup 16

17 Overview Call History Management (search/modify/delete/excel File save) Media Play Management (Play/Stop/Seek/Pause) Live Call Recording List Management Live Call Monitoring (Play) Local Backup (File Manager Support, PC HDD, DVD) and Local Play Event History Search User Management (registration/modify/delete/search) Server Status (CPU/Memory/HDD/Transcoding) & Event Monitoring Recording File Waveform Analyzing Function Recording Source Management (VoIP Gateway, IP Phone, etc) Live Call Recording Board (Recording Board Design, Live Call Status, Voice Monitoring) 17

18 Login Auto Login Configuration Password Save 18

19 User Management New Manager Registration Manager Information Modification Manager Delete 19

20 Recording Server Status Monitoring Client List 20

21 Recording File Management (Recorded File Monitoring (play/seek/pause/resume/stop)) Memo Save 21

22 Recording File List Save (Excel File Format) 22

23 Recording File Waveform Analyzer Calling Party Waveform Play List (PL) Called Party Waveform 23

24 Recording File Waveform Analyzer (Repeated Play) Repeated Play Region Current Position Bar 24

25 Recording File Waveform Analyzer (Bookmark Play) Bookmark Set Bookmark Modify Play at Bookmark Position Bookmark Delete Bookmark bookmark k 설정 Bookmark List 25

26 Recording File Waveform Analyzer (Column Side Zooming) Scroll Column Zoom Out Column Zoom In 26

27 Recording File Waveform Analyzer (Row Side Zooming) Scroll Row Side Zoom Out Row Side Zoom In 27

28 Recording File Waveform Analyzer (Region Zooming) Region Zooming 28

29 Recording File Waveform Analyzer (Call Info. Display) 선택영역확대 Call Info. Display Original View Mode 29

30 Live Call Recording List and Monitoring i Current Call List Display Live Play List Update Time 30

31 Event Management (Configuration) Server IP address Event Port Number Realtime event level Setting Event logging level Setting Event level Configuration Sound Play On/Off at Server Emergency Event Occurring 31

32 Event Management (Monitoring) Event level Configuration Window Event Display Window Event Receiving Pause Event Display Window Clear 32

33 Event Management (System Monitoring) 33

34 Event Management (Event History) Event Search Time Setting Event category Search Condition Setting 34

35 Recording Board Management (Call User Registration) Call User List Import New Call User Registration 35

36 Recording Board Management (Call Group Registration) New Group Registration Call User Selection in Group 36

37 Recording Board Management (Background Image (MAP) Selection) Map Open New Map Registration Map Delete Map Configuration 37

38 Recording Board Management (Layout Configuration) Map Configuration Map mode 를아래 2 가지중에서선택 Icon User Setting Call Connection Time Setting 38

39 Recording Board Management (Live Monitoring) Map Configuration (edit) Map Information Save Dynamic Call Status Display (Icon Color) Call Status Display Call Connection Time Icon Display 39

40 Recording Board Management (Call User Insert/Remove in MAP) Call User List Display ON/OFF Call User Insert/Remove in MAP 40

41 Recording Board Management (Background Image Loading) New Background Image Registration New Image Explorer 41

42 Recoding Board Management (Call User Registration in Background MAP image ) Background MAP image (Call User Registration) 42

43 Smart File Manager (Login) 43

44 Smart File Manager (Recorded Call List Search) Search List (Server) Status Display Search List (Local) 44

45 Smart File Manager (Configuration and Search Filter) 45

46 Smart File Manager (Call List Properties) 46

47 Smart File Manager (Server to Local Backup) 47

48 Smart File Manager (Periodical Backup) 48

49 Thank you! AddPac Technology Co., Ltd. Sales and Marketing Phone (KOREA) FAX (KOREA) sales@addpac.com 49

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