Library for RSA implementation in pure C

Question

I'm looking for a very simple implementation of RSA in C. I need to place it in a DSP, so I'd like to use something very thin and straightforward. Nonetheless, I just found only examples with little numbers (int or long) while I need to implement RSA at least at 1024 bits, so I also have to cope with large numbers.

Can you point me to some libraries or examples for this?

President James K. Polk · Accepted Answer · 2015-05-15T20:13:03.437

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The LibTomCrypt and related projects are very clean and understandable.

edited May 15 '15 at 20:13

answered Dec 25 '12 at 05:29

President James K. Polk

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apparently, the web site has moved to here -> http://www.libtom.net/?page=features&newsitems=5&whatfile=crypt – torus May 15 '15 at 02:38

score 1 · Answer 2 · answered Dec 25 '12 at 00:41

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The latest openssl release's source contains an implementation of RSA, which should work fine for your purposes. Alternatively, you may also consider the GNUPg project, another open-source project with an RSA component.

answered Dec 25 '12 at 00:41

hd1

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Library for RSA implementation in pure C

2 Answers2

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