libtomcrypt

LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.

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3Distinct people

3Mentions

0Explicit recommenders

1.8KGitHub stars

REPOSITORY AT A GLANCE

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What it is

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

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Also in these discussions

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This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 6:01:08 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year3 dated mentions

Observed mentions: 2011-12-28 15:29:17 UTC to 2017-10-11 17:34:49 UTC.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges

UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2011	2011-01-01 00:00:00 UTC	2012-01-01 00:00:00 UTC	1	1	0
2012	2012-01-01 00:00:00 UTC	2013-01-01 00:00:00 UTC	0	0	0
2013	2013-01-01 00:00:00 UTC	2014-01-01 00:00:00 UTC	0	0	0
2014	2014-01-01 00:00:00 UTC	2015-01-01 00:00:00 UTC	1	1	0
2015	2015-01-01 00:00:00 UTC	2016-01-01 00:00:00 UTC	0	0	0
2016	2016-01-01 00:00:00 UTC	2017-01-01 00:00:00 UTC	0	0	0
2017	2017-01-01 00:00:00 UTC	2018-01-01 00:00:00 UTC	1	0	1

What Hacker News says

1 sources

brohee·Oct 11, 2017

libtomcrypt was started by Tom St Denis as he was learning programming, at the age of 15 years old or so. The exact history could be extracted by reading the Usenet sci.crypt group archives. In its early days suffered the horrible security woes that you can expect with these premises (e.g. https://groups.google.com/d/msg/sci.crypt/j3EW_pt6pKA/u8PYkf...). To his credit, Tom St Denis was always very honest and prompt to fix the issues. Pretty recently, it still had very bad issues (e.g. https://github.com/libtom/libtomcrypt/issues/74) I got no idea what to expect now, but I've never seen it used in anything I'd consider serious. To many people, it's forever tainted. The lack of CVE in libtomcrypt is not an indication of quality, just and indication of lack of usage. In any case, its lack of support for PKCS#11 means it's not suitable for us

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e cases where keys must be securely stored.

In Why Constant-Time Crypto?