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#cryptography

01 ENTRIES

• tutorialSep 2, 20264 min read

  Build a Secure VoIP Lab: Asterisk with SRTP and TLS

  A hands-on lab to stand up an Asterisk PBX, prove that plain RTP audio can be replayed from a packet capture, then lock it down with TLS-protected SIP and SRTP-SDES media and confirm the difference in Wireshark.