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Files from Folkert van Heusden

Email addressfolkert at vanheusden.com
First Active2003-10-30
Last Active2013-01-23
Listener 2.2
Posted Jan 23, 2013
Authored by Folkert van Heusden | Site vanheusden.com

This program listens for sound. If it detects any, it starts recording automatically and also automatically stops when things become silent again.

Changes: This is a maintenance release, fixing all kinds of small bugs.
tags | tool
systems | linux
SHA-256 | 890836e94e3df9f0cd83b2cb9ed98f9a072cb4aaa3d5ebfc78785a6ad2d47bba
Entropy Broker RNG 2.1
Posted Dec 22, 2012
Authored by Folkert van Heusden | Site vanheusden.com

Entropy Broker is an infrastructure for distributing cryptographically secure random numbers (entropy data) from one or more servers to one or more clients. Entropy Broker allows you to distribute entropy data (random values) to /dev/random devices from other systems (real servers or virtualised systems). It helps preventing that the /dev/random device gets depleted; an empty /dev/random-device can cause programs to hang (waiting for entropy data to become available). This is useful for systems that need to generate encryption keys, run VPN software or run a casino website.

Changes: This release adds a Web interface for viewing usage statistics, per-user bandwidth limits, and many small fixes.
tags | encryption
systems | linux
SHA-256 | a3f390c0f95d70ab5d90a8cb508fd38446170748012ce225225580bd14f4417e
Entropy Broker RNG 2.0.1
Posted Nov 22, 2012
Authored by Folkert van Heusden | Site vanheusden.com

Entropy Broker is an infrastructure for distributing cryptographically secure random numbers (entropy data) from one or more servers to one or more clients. Entropy Broker allows you to distribute entropy data (random values) to /dev/random devices from other systems (real servers or virtualised systems). It helps preventing that the /dev/random device gets depleted; an empty /dev/random-device can cause programs to hang (waiting for entropy data to become available). This is useful for systems that need to generate encryption keys, run VPN software or run a casino website.

Changes: This release fixes crashes with the Linux kernel client.
tags | tool, encryption
systems | linux
SHA-256 | 3d1e4c41d08e5baf8af7d5cee22f9eb7fd7ed309f653a29a3211116a0cf24340
Entropy Broker RNG 2.0
Posted Oct 30, 2012
Authored by Folkert van Heusden | Site vanheusden.com

Entropy Broker is an infrastructure for distributing cryptographically secure random numbers (entropy data) from one or more servers to one or more clients. Entropy Broker allows you to distribute entropy data (random values) to /dev/random devices from other systems (real servers or virtualised systems). It helps preventing that the /dev/random device gets depleted; an empty /dev/random-device can cause programs to hang (waiting for entropy data to become available). This is useful for systems that need to generate encryption keys, run VPN software or run a casino website.

Changes: Entropy broker is now fully multi-threaded so that no client can block the broker, and higher bitrates can now be achieved. The OpenSSL dependency has been replaced by the crypto++ library. A 'configure' script has been added. This release has been checked for software defects with Coverity. The network protocol has been adapted for bigger block sizes. Ciphers/hashes are now fully user selectable. There is reduced broker entropy usage.
tags | tool, encryption
systems | linux
SHA-256 | 39eaa71765d33198222497e34aab245d65b3b844120d11bec809f454b85721ad
Entropy Broker RNG 1.2
Posted Sep 18, 2012
Authored by Folkert van Heusden | Site vanheusden.com

Entropy Broker is an infrastructure for distributing cryptographically secure random numbers (entropy data) from one or more servers to one or more clients. Entropy Broker allows you to distribute entropy data (random values) to /dev/random devices from other systems (real servers or virtualised systems). It helps preventing that the /dev/random device gets depleted; an empty /dev/random-device can cause programs to hang (waiting for entropy data to become available). This is useful for systems that need to generate encryption keys, run VPN software or run a casino website.

Changes: This release has full IPv6 support, has bps output fixes, can now retrieve entropy data from smart cards, and has support for multiple broker servers. EGD server/client now supports TCP as well (for better compatibility with EntropyKey). There are fixes for Fedora and Coverity warning fixes.
tags | encryption
systems | linux
SHA-256 | 3ecddde77082e049a2056e7fee7d05301ade18b02e1ebc838e4af707f2a74d39
Entropy Broker RNG 1.1
Posted Sep 4, 2012
Authored by Folkert van Heusden | Site vanheusden.com

Entropy Broker is an infrastructure for distributing cryptographically secure random numbers (entropy data) from one or more servers to one or more clients. Entropy Broker allows you to distribute entropy data (random values) to /dev/random devices from other systems (real servers or virtualised systems). It helps preventing that the /dev/random device gets depleted; an empty /dev/random-device can cause programs to hang (waiting for entropy data to become available). This is useful for systems that need to generate encryption keys, run VPN software or run a casino website.

Changes: Fix for busy-loop when pools empty.
tags | encryption
systems | linux
SHA-256 | 64323f1801115658cba288d825257b69c326ef6e92dde888338337aff8711c82
Entropy Broker RNG 1.0.1
Posted Aug 14, 2012
Authored by Folkert van Heusden | Site vanheusden.com

Entropy Broker is an infrastructure for distributing cryptographically secure random numbers (entropy data) from one or more servers to one or more clients. Entropy Broker allows you to distribute entropy data (random values) to /dev/random devices from other systems (real servers or virtualised systems). It helps preventing that the /dev/random device gets depleted; an empty /dev/random-device can cause programs to hang (waiting for entropy data to become available). This is useful for systems that need to generate encryption keys, run VPN software or run a casino website.

Changes: This is an important bugfix release. This version replaces the ivec initializer code with something more sensible.
tags | encryption
systems | linux
SHA-256 | e505291a3ada9f1ba3928113fa70f9f79bfc771b2fe8e20560d612d5c64beb5b
Entropy Broker RNG 1.0
Posted Aug 7, 2012
Authored by Folkert van Heusden | Site vanheusden.com

Entropy Broker is an infrastructure for distributing cryptographically secure random numbers (entropy data) from one or more servers to one or more clients. Entropy Broker allows you to distribute entropy data (random values) to /dev/random devices from other systems (real servers or virtualised systems). It helps preventing that the /dev/random device gets depleted; an empty /dev/random-device can cause programs to hang (waiting for entropy data to become available). This is useful for systems that need to generate encryption keys, run VPN software or run a casino website.

Changes: EGD client now fully implements the EGD protocol. A network protocol fix was implemented.
tags | encryption
systems | linux
SHA-256 | 76ca25d4f7c84938b67595662b7b2a2ccc1f026c5fd38878da67d399c829206c
Entropy Broker RNG 0.9
Posted Jul 26, 2012
Authored by Folkert van Heusden | Site vanheusden.com

Entropy Broker is an infrastructure for distributing cryptographically secure random numbers (entropy data) from one or more servers to one or more clients. Entropy Broker allows you to distribute entropy data (random values) to /dev/random devices from other systems (real servers or virtualised systems). It helps preventing that the /dev/random device gets depleted; an empty /dev/random-device can cause programs to hang (waiting for entropy data to become available). This is useful for systems that need to generate encryption keys, run VPN software or run a casino website.

Changes: video4linux server is now compatible with video4linux2. It will now dump and restore the pool-contents.
tags | tool, encryption
systems | linux
SHA-256 | 1256b9eabb591bfe6735cfcd5b31fafece6cca0028f6df1894bd805070ba6d45
Video Entropyd 2.0
Posted May 10, 2012
Authored by Folkert van Heusden | Site vanheusden.com

video-entropyd is a program to add entropy data from video4linux devices to the kernel random driver.

Changes: This version is now compatible with recent kernels (kernels that export the video4linux2 API).
tags | kernel, encryption
systems | linux
SHA-256 | aba6255ddb32cd376c785128a7e850fb51b6c1d7fe3f4ba765abc0c50ec67d7a
LibPRNGWrap 2.0.0
Posted Oct 5, 2011
Authored by Folkert van Heusden | Site vanheusden.com

libprngwrap is a preload-library (so that it doesn't require any changes to the software it alters) which replaces the libc rand() random() and *rand48() calls by code that gets data from /dev/urandom. This might be a little bit more secure.

Changes: This release adds compatibility fixes and implements all re-entrant PRNG functions from libc.
tags | library
systems | linux
SHA-256 | bd7181b8ddfe0b52535c4df2b68e7a9ec4ab1a76ae6db8aada616d8f081e09fb
Listener 2.0.1
Posted Aug 2, 2011
Authored by Folkert van Heusden | Site vanheusden.com

This program listens for sound. If it detects any, it starts recording automatically and also automatically stops when things become silent again.

Changes: This version now uses portaudio. This means it is more stable and should run on other platforms (such as Mac OS X). This version also has a new, more flexible commandline format for selecting sample rate and such.
systems | linux
SHA-256 | ae08c0b3cfb4c38eaa0188b375c0e4c868f66c5706e33d33e210cd0320e035bc
Listener 2.0.0
Posted Aug 6, 2010
Authored by Folkert van Heusden | Site vanheusden.com

This program listens for sound. If it detects any, it starts recording automatically and also automatically stops when things become silent again.

Changes: First version which is using ALSA for sound I/O.
systems | linux
SHA-256 | df5f88350c8557ac3ddf7b31863da8cc0cf9163ec0473d04dbc559eea9ed7902
Entropy Broker RNG
Posted Sep 1, 2009
Authored by Folkert van Heusden | Site vanheusden.com

Entropy Broker is an infrastructure for distributing cryptographically secure random numbers (entropy data) from one or more servers to one or more clients. Entropy Broker allows you to distribute entropy data (random values) to /dev/random devices from other systems (real servers or virtualised systems). It helps preventing that the /dev/random device gets depleted; an empty /dev/random-device can cause programs to hang (waiting for entropy data to become available). This is useful for systems that need to generate encryption keys, run VPN software or run a casino website.

Changes: This release adds support for the EGD (entropy gathering daemon) Unix domain socket interface so that EntropyBroker can also retrieve entropy data from an EntropyKey.
tags | encryption
SHA-256 | cef04aded506afbb48ffe01dca38b97786be69efe17e7a5f26aa43e1068d7e3b
Entropy Broker RNG
Posted Jun 24, 2009
Authored by Folkert van Heusden | Site vanheusden.com

Entropy Broker is an infrastructure for distributing cryptographically secure random numbers (entropy data) from one or more servers to one or more clients. Entropy Broker allows you to distribute entropy data (random values) to /dev/random devices from other systems (real servers or virtualised systems). It helps preventing that the /dev/random device gets depleted; an empty /dev/random-device can cause programs to hang (waiting for entropy data to become available). This is useful for systems that need to generate encryption keys, run VPN software or run a casino website.

Changes: This release adds a serial correlation coefficient checker for data sent and received, cleans up logging, handles session timeouts more gracefully, implements a configuration file, and has code cleanup.
tags | encryption
SHA-256 | 955cb5b42026702bce80bc8e15524590bc34162241a7b7abfc92223d8c9d1d3a
Entropy Broker RNG
Posted Jun 17, 2009
Authored by Folkert van Heusden | Site vanheusden.com

Entropy Broker is an infrastructure for distributing cryptographically secure random numbers (entropy data) from one or more servers to one or more clients. Entropy Broker allows you to distribute entropy data (random values) to /dev/random devices from other systems (real servers or virtualised systems). It helps preventing that the /dev/random device gets depleted; an empty /dev/random-device can cause programs to hang (waiting for entropy data to become available). This is useful for systems that need to generate encryption keys, run VPN software or run a casino website.

Changes: sever_stream now also supports serial devices, Added FIPS 140-2 test.
tags | encryption
SHA-256 | c68e6ab998d7d10dd7bce408eaedebe892edbbef698e989d26b1322e22aebf91
Entropy Broker RNG
Posted Jun 15, 2009
Authored by Folkert van Heusden | Site vanheusden.com

Entropy Broker is an infrastructure for distributing cryptographically secure random numbers (entropy data) from one or more servers to one or more clients. Entropy Broker allows you to distribute entropy data (random values) to /dev/random devices from other systems (real servers or virtualised systems). It helps preventing that the /dev/random device gets depleted; an empty /dev/random-device can cause programs to hang (waiting for entropy data to become available). This is useful for systems that need to generate encryption keys, run VPN software or run a casino website.

tags | encryption
SHA-256 | 6d97fadeca01d2e5ee203525b223ac4cd679980f47e622d67703c64b5711e36d
Audio Entropyd /dev/random Feeder
Posted May 3, 2009
Authored by Folkert van Heusden | Site vanheusden.com

audio-entropyd feeds the /dev/random device with entropy data read from an audio device. The audio data is not copied as is, but first 'de-biased' and analyzed to determine how many bits of entropy are in it. This program is useful for systems doing many cryptographic tasks like VPN endpoints or GPG clients; it helps prevent the /dev/random device from being depleted and blocking reads.

Changes: There are major bugfixes. Users are urged to install this release. It also adds ALSA support.
tags | encryption
SHA-256 | 29d4350ad8ef26233e1b35ba0e8dd0b1138475c0f840008304677812dbdb2c15
listener-1.7.2.tgz
Posted Dec 28, 2005
Authored by Folkert van Heusden | Site vanheusden.com

This program listens for sound. If it detects any, it starts recording automatically and also automatically stops when things become silent again.

Changes: Added one-shot recording. Can now write its pid to a file when running in daemon mode.
systems | linux
SHA-256 | 1fe69c16d833bb5e3570d7b140f764bf60de159217c5fe4fbc149cbc6a90d529
listener-0.8.tgz
Posted Dec 31, 2004
Authored by Folkert van Heusden | Site vanheusden.com

This program listens for sound. If it detects any, it starts recording automatically and also automatically stops when things become silent again.

Changes: Added external filter support.
systems | linux
SHA-256 | 7746d6db4f2fc9c25f6eadf76a52e43e061078ee954a7016e9815714efa1bb78
listener-0.6.tgz
Posted Dec 11, 2004
Authored by Folkert van Heusden | Site vanheusden.com

This program listens for sound. If it detects any, it starts recording automatically and also automatically stops when things become silent again.

Changes: One can now configure several parameters via the commandline.
systems | linux
SHA-256 | 98ad30a0ccb9efab33e61d565dd53b6922e3395876c772d0a65d5485bd65e57e
libsd-1.0.1.tgz
Posted Apr 3, 2004
Authored by Folkert van Heusden | Site vanheusden.com

libsd is a library that allows any application to securely delete files by writing several bitpatterns over a file before removing it from a filesystem. It does this by replacing various library functions like (f)truncate(64).

tags | library
SHA-256 | d2298b63911fe3af2b7cd82d8190fc113f956bcdda985a80aa0ac7b0f6fa7091
listener-0.4.tgz
Posted Mar 12, 2004
Authored by Folkert van Heusden | Site vanheusden.com

This program listens for sound. If it detects any, it starts recording automatically and also automatically stops when things become silent again.

Changes: If the sound ends, one can now let an external script/program be executed. Samples can now be compressed with several compression schemes.
systems | linux
SHA-256 | 04cf289583b05882168daf3389154243157121ae87c09f2719deb24c322efbbc
listener-0.3.tgz
Posted Mar 1, 2004
Authored by Folkert van Heusden | Site vanheusden.com

This program listens for sound. If it detects any, it starts recording automatically and also automatically stops when things become silent again.

systems | linux
SHA-256 | 47167c3a3709b691f1ed921bb7bbb536eeeb9bc07c1ac9bceb1d70434b131ee1
fp-2.4.22.patch.gz
Posted Oct 30, 2003
Authored by Folkert van Heusden | Site vanheusden.com

The Linux-kernel security patch for kernel v2.4.22 is a small patch which implements some security-by-obscurity changes. Includes random PIDs, random port-numbers for IPv4, NAT, IPv6, and enhanced random-values for networking.

tags | kernel, patch
systems | linux, unix
SHA-256 | 3274705b80f10bfa2cfe4288f7267283b54aec56f4ee9c82fbdec2aa28d2e959
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