pkcs11-helper

Install command:
brew install pkcs11-helper

Library to simplify the interaction with PKCS#11

https://github.com/OpenSC/OpenSC/wiki/pkcs11-helper

License: BSD-3-Clause OR GPL-2.0-or-later

Development: Pull requests

Formula JSON API: /api/formula/pkcs11-helper.json

Formula code: pkcs11-helper.rb on GitHub

Bottle (binary package) installation support provided for:

macOS on
Apple Silicon
golden gate ✅
tahoe ✅
sequoia ✅
Linux ARM64 ✅
x86_64 ✅

Current versions:

stable ✅ 1.31.0
head ⚡️ HEAD

Revision: 1

Patches:

https://github.com/OpenSC/pkcs11-helper/commit/9c64c288384a7676c8e89258738d56f39116bd28

Depends on:

openssl@4 4.1.0 Cryptography and SSL/TLS Toolkit

Depends on when building from source:

autoconf 2.73 Automatic configure script builder
automake 1.20 Tool for generating GNU Standards-compliant Makefiles
libtool 2.6.2 Generic library support script
pkgconf 3.0.10 Package compiler and linker metadata toolkit

GitHub Packages downloads:

Last 30 days41,366
Downloads3,109,185
Analytics install events (30 days)2,096
Downloads / install events (30 days)19.7×

Source: GitHub Packages, fetched 2026-11-10T00:51:18Z. Analytics dates: 2026-10-11 to 2026-11-10. Totals exclude downloads from Bintray before the migration to GitHub Packages. Downloads and install attempts measure different things; the difference does not count analytics opt-outs. Definitions and limitations.

Analytics:

30 days90 days365 days
Installs2,0964,17420,795
Installs (--HEAD)001
Installs on Request1902791,098
Installs on Request (--HEAD)001
Build Errors53