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The current version of strsim is 0.11.1.

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This crate can be compiled, run, and tested on a local workstation or in controlled automation without surprising consequences. More…

does-not-implement-crypto (implies crypto-safe)

Inspection reveals that the crate in question does not attempt to implement any cryptographic algorithms on its own.

Note that certification of this does not require an expert on all forms of cryptography: it's expected for crates we import to be "good enough" citizens, so they'll at least be forthcoming if they try to implement something cryptographic. When in doubt, please ask an expert.

Implied by other criteria

All crypto algorithms in this crate have been reviewed by a relevant expert.

Note: If a crate does not implement crypto, use does-not-implement-crypto, which implies crypto-safe, but does not require expert review in order to audit for.

safe-to-deploy (implies safe-to-run)

This crate will not introduce a serious security vulnerability to production software exposed to untrusted input. More…

ub-risk-0 (implies ub-risk-1)

No unsafe code.

Full description of the audit criteria can be found at

ub-risk-1 (implies ub-risk-2)
Implied by other criteria

Excellent soundness.

Full description of the audit criteria can be found at

ub-risk-2 (implies ub-risk-3)
Implied by other criteria

Negligible unsoundness or average soundness.

Full description of the audit criteria can be found at

ub-risk-3 (implies ub-risk-4)
Implied by other criteria

Mild unsoundness or suboptimal soundness.

Full description of the audit criteria can be found at

Implied by other criteria

Extreme unsoundness.

Full description of the audit criteria can be found at


May have been packaged automatically without a review

These reviews are from Crev, a distributed system for code reviews. To add your review, set up cargo-crev.

The current version of strsim is 0.11.1.

0.10.0 (older version) Rating: Positive Thoroughness: High Understanding: High

Approved without comment by johnlepikhin on 2022-11-04

0.9.3 (older version) Rating: Positive Thoroughness: None Understanding: Medium

by leo60228 on 2021-09-28

changes seem clear

0.8.0 (older version) Rating: Strong Positive Thoroughness: Medium Understanding: Medium

by on 2019-09-23

No No use of unsafe code or calls into C libraries. String accesses using bounds checked APIs. No IO.

0.7.0 (older version) Rating: Positive Thoroughness: Low Understanding: Medium

by Alxandr on 2019-07-13

I don't claim to understand all the algorithms, but it seems to do what it claims, and has a bunch of tests to showcase it. has been able to verify that all files in the crate's tarball are in the crate's repository. Please note that this check is still in beta, and absence of this confirmation does not mean that the files don't match.

Crates in the registry are tarball snapshots uploaded by crates' publishers. The registry is not using crates' git repositories, so there is a possibility that published crates have a misleading repository URL, or contain different code from the code in the repository.

To review the actual code of the crate, it's best to use cargo crev open strsim. Alternatively, you can download the tarball of strsim v0.11.1 or view the source online.