libtasn1

Install command:
brew install libtasn1

Also known as: libtasn

ASN.1 structure parser library

https://www.gnu.org/software/libtasn1/

License: LGPL-2.1-or-later

Development: Pull requests

Formula JSON API: /api/formula/libtasn1.json

Formula code: libtasn1.rb on GitHub

Bottle (binary package) installation support provided for:

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

Current versions:

stable ✅ 4.21.0

Binaries: asn1Coding, asn1Decoding, asn1Parser

GitHub Packages downloads:

Last 30 days420,466
Downloads30,539,067
Analytics install events (30 days)34,129
Downloads / install events (30 days)12.3×

Source: GitHub Packages, fetched 2026-11-03T00:38:59Z. Analytics dates: 2026-10-04 to 2026-11-03. 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
Installs34,12787,624626,545
Installs (--HEAD)2319
Installs on Request1112993,669
Installs on Request (--HEAD)117
Build Errors0