libtomcrypt | fairly comprehensive , modular and portable cryptographic | Hashing library

by libtom C Version: v1.18.2 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(4)Vulnerabilities Install Support

kandi X-RAY | libtomcrypt Summary

libtomcrypt is a C library typically used in Security, Hashing applications. libtomcrypt has no bugs and it has medium support. However libtomcrypt has 1 vulnerabilities and it has a Non-SPDX License. You can download it from GitHub, GitLab.

Previously the git repository contained doc/crypt.pdf for detailed documentation. This was changed and the file is now only available from the tarball of the appropriate version or from the page .

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Quality

Security

License

Reuse

Support

libtomcrypt has a medium active ecosystem.

It has 1381 star(s) with 428 fork(s). There are 106 watchers for this library.

It had no major release in the last 12 months.

There are 46 open issues and 177 have been closed. On average issues are closed in 127 days. There are 24 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of libtomcrypt is v1.18.2

Quality

libtomcrypt has 0 bugs and 0 code smells.

Security

libtomcrypt has 1 vulnerability issues reported (1 critical, 0 high, 0 medium, 0 low).

libtomcrypt code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

libtomcrypt has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

libtomcrypt releases are available to install and integrate.

Installation instructions, examples and code snippets are available.

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libtomcrypt Key Features

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libtomcrypt Examples and Code Snippets

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Community Discussions

Trending Discussions on libtomcrypt

RSA signature verification failing with libtomcrypt

Adding libtomcrypt and libtommath to my c++ project

Pointer parameter NULL when entering in function scope but not at function call

error: redeclaration of enumerator for contiki os libtomcrypt library

QUESTION

RSA signature verification failing with libtomcrypt

Asked 2019-Apr-11 at 09:46

I was using libtomcrypt for a project, in particular hashing and signing with RSA some data. Because of memory requirements I wanted to switch to mbedtls. However I noticed an issue when trying to verify with mbedtls a signature generated by libtomcrypt. There is a padding (PKCS#1 PSS) decoding issue.

Because I didn't know which of these libraries was (maybe) having a bug I used openssl to verify.

I successfully verified a signature generated with mbedtls with openssl and I had a verification failure when verifying one generated form libtomcrypt which makes me think libtomcrypt has a bug.

However because It could be a configuration issue so I created a repo with minimal examples with the hope someone could detect an issue coming from me and not from the library itself.

The test repo is here

Thanks for any help received !

...

ANSWER

Answered 2019-Apr-11 at 09:46

There's one important part missing, you should not be signing the data, but a hash of the data.

Adding this fixes the issue:

Source https://stackoverflow.com/questions/55613950

QUESTION

Adding libtomcrypt and libtommath to my c++ project

Asked 2018-Jul-26 at 22:51

I am a C# developer, and spoiled rotten when it comes to references and dependencies. I am working on a small project now in Visual C++ (Visuial Studio 2017), where I want to use the libtomcrypt and libtommath libraries. I've created a small project and added the 2 projects to my solution:

I have also added my includes:

And I added the dependencies:

However, I still can't build:

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ANSWER

Answered 2018-Jul-26 at 22:51

The error message indicates that the compiler can't find the file tomcrypt.h while compiling one of your source files. From the message I would guess that you have a line like the following in your source file:

Source https://stackoverflow.com/questions/51506468

QUESTION

Pointer parameter NULL when entering in function scope but not at function call

Asked 2018-Jul-04 at 16:27

I'm working on stm32f469 doing some bare metal code to try to use the libtomcrypt / libtomfastmath libraries. The code I'm trying to debug has been checked by valgrind and is working on many platforms like macos, raspberrypi, ios, android.

To keep things simple, I am doing the following which is calling this function int register_hash(const struct ltc_hash_descriptor *hash) with a const static variable by giving it's adress : register_hash(&sha256_desc). The problem is, once I am inside the function, the hash pointer is NULL and I cannot figure out why.

I was thinking It would be a stack overflow so I pre-filled the stack with the constant value 0xdeadbeef and I checked if all these values were erased or not and the result is the stack is not overflowed.

When debugging, I can verify the value at the address returned by &sha256_desc and the memory is not corrupted there either.

I am not doing dynamic allocations nor buffer filling that could be overflowing and corrupting the memory.

I'm compiling with arm-none-eabi-gcc, version 7-2017-q4-major.

I am mainly looking for some possible sources of issue as I am running out of ideas.

...

ANSWER

Answered 2018-Jul-04 at 16:27

Thanks to @Ctx's comment I solved the issue by compiling all the files in one place instead of compiling a static library later linked to my program.

I don't know what was the problem and because I have new issues blocking me I won't try to investigate further.

Source https://stackoverflow.com/questions/51174303

QUESTION

error: redeclaration of enumerator for contiki os libtomcrypt library

Asked 2017-Jan-18 at 08:18

I am working on encryption in CONTIKI OS and COOJA simulator which i tired to use the library libtomcrypt. I include the library into CONTIKI folder but when i tired to call the rsa_make_key function it given me this error. Thanks in advance and hope to heard from you guys soon.

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ANSWER

Answered 2017-Jan-18 at 08:18

I suppose that either tomcrypt.h or `tomcrypt_pk.h" file gets included several times and that therefore the same things get defined several times.

To try out if this is the reason, I'd add the following lines at the top and at the end of tomcrypt.h, respectively.

At the top:

Source https://stackoverflow.com/questions/41713108

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install libtomcrypt

There exist several install make-targets which are described in the table above.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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