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[liberationtech] secure voice options for china?

Francisco Ruiz ruiz at
Mon Feb 16 12:56:16 PST 2015

You may want to try a solution based on webRTC, which establishes a
TLS-like communication directly between computers. There's and, but I'm not sure how secure they are at server level

My own app, PassLok, does webRTC audio-only chat if that's what you want.
The initiator makes an encrypted invitation that is sent by email (can be
disguised inside a picture or as normal text, Chinese works fine), and then
only those able to decrypt it are able to connect to each other from inside
the app.

PassLok is open source and available at several places, including

On Thu, Feb 12, 2015 at 10:45 AM, Tim Libert <tlibert at> wrote:

> asking for a friend, can anybody suggest best ways to have a secure voice
> conversation with persons located in mainland china from outside china?
> threat model is interception by chinese authorities, other states/actors
> are not of significant concern.  email alone is insufficient for task.
> thanks.
> tim
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Francisco Ruiz
Associate Professor
MMAE department
Illinois Institute of Technology

PL21ezLok=1iw+0_y5xyh_66nby_u12x1_hmdw8_iioou_6yhud_a8/i9_jd4fj_fvv6i_swkrn_u773t_jb7yr_+d9nn_/b4h6_880py_vtf4L_o4zwr_6207u_v/bdd=354ad_7836e_52c1a_2cae9=PL21ezLok <>

get the PassLok privacy app at: <>
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