Unfragile

The request "sha-1" names no product, so this answers what to use for SHA-1 hashing. SHA-1 is a hash function, and the sources show it as a supported primitive in libraries rather than a tool: PyCryptodome offers self-contained low-level cryptographic primitives 9, the Cryptography documentation covers message digests 6, and OpenSSL is a general-purpose cryptography toolkit 10. The sources do not show PyCryptodome or Cryptography explicitly listing SHA-1; they show these libraries as gener

A question back: Do you need SHA-1 for a specific language or platform, and is it for hashing data or for legacy compatibility (SHA-1 is considered weak for security)?

1
PyCryptodomepycryptodome.orgwebsite read, tools not yet checked
A self-contained Python package of low-level cryptographic primitives for Python 3.9 and newer, which includes hash digests for SHA-1 use.
Website Docs
2
Cryptographycryptography.iowebsite read, tools not yet checked
A Python library providing high-level recipes and low-level interfaces to common cryptographic algorithms, including message digests.
Website Docs
+4 community tools built for it
3
OpenSSL Libraryopenssl-library.orgwebsite read, tools not yet checked
A general-purpose, commercial-grade cryptography and secure communication toolkit.
Website Docs

Sources

6Welcome to pyca/cryptography — Cryptography 51.0.0-dev1 documentationcryptography.io · read 2026-10-29
9PyCryptodomepycryptodome.org · read 2026-10-29
10OpenSSL Libraryopenssl-library.org · read 2026-10-29

For agents: the 10 actions behind this answer

github-release · github-release verified and signed
Guides IA through releasing a new version of a GitHub library end-to-end. Handles SemVer versioning and Keep a Changelog formatting automatically.
· Insta Snapshots Sha1 Smol website read, tools not yet checked
Insta is an enjoyable snapshot testing tool for Rust.
· async-std website read, tools not yet checked
A Rust library for easy and understandable async programming
· PyCrypto website read, tools not yet checked
· aio-libs Aiobotocore website read, tools not yet checked
· Cryptography 51.0.0-dev1 documentation website read, tools not yet checked
· aio-libs Aiohttp website read, tools not yet checked
· libssh2 website read, tools not yet checked
hashing · argon2-cffi verified and signed
· PyCryptodome website read, tools not yet checked

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