block-ciphers VS cargo-auditable

If found this set of crates for other algorithms : https://github.com/RustCrypto/hashes And also found this set of crates that seem to include a lot of block cyphers : https://github.com/RustCrypto/block-ciphers Even if "des" is listed as a crate in this last link, it doesn't seem to provide the DES algorithm entirely.

If you are trying to use it as a library in your own crate then I would suggest looking at the [patch.crates-io] section of your Cargo.toml. It should allow you to override the dependency and point it to something else. Under that section set aes = { git = 'https://github.com/RustCrypto/block-ciphers', rev = 'e59142b26edcaa5e287c7e5067be8a501b42f9cb' }, changing the rev key to whichever commit has the right version of the crate when it was published. Then do the same for block-cipher and any others that it cannot find the version for but with the correct repository and commit.

aes (GitHub: RustCrypto / block-ciphers / aes) good: still maintained as of now - last commit on GitHub is from October 2021 good: examples look easy to use good: has received an audit by NCC Group bad: seems a bit too low level - the example provided only shows usage with data that is exactly block sized - seems there is no padding handling for real world use cases

I have no idea which libraries have the best code for Raspberry Pi 4. I think it doesn't have hardware AES, so an implementation of AES that doesn't leak secret bits through side channels and is fast would be complicated. The code I would trust is this: https://github.com/RustCrypto/block-ciphers but I have no idea whether it has python bindings. I would also sorry about correctly reusing buffers or else the memory allocation would be the bottleneck.

You should look at this this: https://github.com/rust-cc/awesome-cryptography-rust and you probably need this: https://github.com/RustCrypto/block-ciphers

For example, here is a bitsliced AES S-box written in single assignment form. Granted that's not the entire cipher, but the entire cipher can be implemented that way if you so desire.

Further we use cargo-auditable and cargo-audit as part of both our pipeline and regular scanning of all deployed services. This makes our InfoSec and Legal super happy since it means they can also monitor compliance with licenses and patch/update timings.

This exists, see cargo auditable.

The Rust community seems to have settled on a perfectly reasonable way to address bit-rot in statically linked binaries. https://github.com/rust-secure-code/cargo-auditable

Would you be open to integrating cargo auditable into this pipeline in some form? It seems like a great match.

> and static compilation probably just hides the problem unless security scanners these days can identify statically compiled vulnerable versions of libraries

Some scanners like trivy [1] can scan statically compiled binaries, provided they include dependency version information (I think go does this on its own, for rust there's [2], not sure about other languages).

It also looks into your containers.

The problem is what to do when it finds a vulnerability. In a fat app with dynamic linking you could exchange the offending library, check that this doesn't break anything for your use case, and be on your way. But with static linking you need to compile a new version, or get whoever can build it to compile a new version. Which seems to be a major drawback of discouraging fat apps.

1: https://github.com/aquasecurity/trivy

2: https://github.com/rust-secure-code/cargo-auditable

I have investigated a bunch of standardized formats - SPDX, CycloneDX, etc. All of them are unsuitable for a variety of reasons, chief of which are being way too verbose and including timestamps, which would break reproducible builds.

The fix for interoperability with cargo auditable has also shipped in the latest release of sccache. You can use the released sccache now instead of building it from git!

I've been working to bring vulnerability scanning to Rust binaries by creating cargo auditable, which embeds the list of dependencies and their versions into the compiled binary. This lets you audit the binary you actually run, instead of the Cargo.lock file in some repo somewhere.

cargo auditable solves this problem by embedding the list of dependencies and their versions into the binaries. But until it becomes part of Cargo and gets enabled by default, static linking will remain problematic.