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cryptography

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laanwj
laanwj commented Jun 13, 2022

importaddress (and possibly other legacy-only wallet functions), when used on a descriptor wallet, return a fairly nondescript error:

$ ./bitcoin-cli -regtest importaddress test
error code: -4
error message:
This type of wallet does not support this command

The RPC help of importaddress doesn't mention nor further explain this incompatibility, nor what alternative to use inste

dpirotte
dpirotte commented Jul 7, 2022

OpenSSL 1.1.1h introduces a behavior change wherein one can no longer set an EC_KEY's private_key to NULL.

This behavior changes in 6a01f6f4b41d045e2a3abcb10163633d769db76a. Based on the original PR (openssl/openssl#11127), it appears that this is hardening backported from 3.0.0 that unintentionally introduced a regression.

From https://github.com/openssl/openssl/comm

branch: master branch: 1.1.1 good first issue triaged: bug
SkeletalDemise
SkeletalDemise commented Sep 21, 2020

Hey Hackers of this spoopy month! 👻
Welcome to the Ciphey repo(s)!
This issue requires you to add a decoder.

This wiki section walks you through EVERYTHING you need to know, and we've added some more links at the bottom of this issue to detail more about the decoder.
https://github.com/Ciphey/Ciphey/wiki#adding-your-own-crackers--decoders

https://www.dcode.fr/t9-cipher
https://en.wikipe

enhancement good first issue feature_request hacktoberfest
cryptomator
Crypt-iQ
Crypt-iQ commented Jul 11, 2022

ioutil.WriteFile doesn't sync the data to disk, so any data written with this function can easily be lost. It's even possible that only partial writes happen. Issuing an Fsync is a better alternative. There aren't many call-sites that do this and I wasn't able to evaluate whether any of these were critical, but better to be safe than sorry.

beginner safety good first issue
rippled
ximinez
ximinez commented Dec 8, 2021

Issue Description

The instructions provided on failed jobs (example) don't clearly explain where to find the generated patch file. This can be a problem for anyone who is not familiar with how Github Actions pages are organized.

The general idea is:

From the details page, click on "Summary", then scroll down to the "Artifacts" secti

Good First Issue CI Documentation
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.
good first issue difficulty/beginner CBMC

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.
  • Updated Jun 24, 2022
  • C++

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