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aws / s2n-tls

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Open

s2n_stuffer_skip_write usage pattern

2
baldwinmatt
baldwinmatt commented Jun 26, 2020

Problem:

A common pattern is:

GUARD(s2n_stuffer_skip_write(stuffer, bytes_to_write));
uint8_t* ptr = suffer->blob.data + stuffer->write_cursor - bytes_to_write;

which could be simplified.

Solution:

*ptr could be an *out parameter to s2n_stuffer_skip_write

  • Does this change what S2N sends over the wire? No.
  • Does this change any public APIs? No.
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CBMC difficulty/beginner good first issue
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PrivateBin / PrivateBin

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identicon library is abandoned - find and switch to a replacement

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elrido
elrido commented May 22, 2021

As I was running composer to install a new library into our repo, it warned me that:

Package yzalis/identicon is abandoned, you should avoid using it. No replacement was suggested.

I'm not familiar on what packagist.org's process is to declare a package abandoned. I see that the last commit in their repo is from 2019 and there are a number of unanswered issues and pull requests.

I

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code quality good first issue help wanted

ARMmbed / mbedtls

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Reorder structure fields to put commonly-used fields first: quick wins

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gilles-peskine-arm
gilles-peskine-arm commented Jul 1, 2021

There are advantages to grouping commonly-used fields in structures together. On Cortex-M0, an access to the first 128 elements of a structure (p->x when offsetof(t, x) / sizeof(x) < 128 where sizeof(x) is 1, 2 or 4) uses less code than an access beyond this boundary. On platforms with a cache, putting commonly-used fields in the same cache line optimizes cache use.

Anecdotal evidence sug

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Product Backlog enhancement good first issue size:S
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homenc / HElib

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HElib is an open-source software library that implements homomorphic encryption. It supports the BGV scheme with bootstrapping and the Approximate Number CKKS scheme. HElib also includes optimizations for efficient homomorphic evaluation, focusing on effective use of ciphertext packing techniques and on the Gentry-Halevi-Smart optimizations.

cryptography crypto encryption crypto-library privacy-enhancing-technologies encryption-library helib bgv privacy-by-design
  • Updated Jul 13, 2021
  • C++

randombit / botan

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