der-ascii

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    "go"
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  "desc": "Reversible DER and BER pretty-printer",
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  "enrichment_fetched_at": "2026-06-20T23:36:54+00:00",
  "first_seen": "2026-06-20T23:34:18+00:00",
  "full_name": "der-ascii",
  "github_default_branch": "main",
  "github_last_commit_at": "2026-05-24T14:58:16Z",
  "github_readme_excerpt": "# DER ASCII\n\nDER ASCII is a small human-editable language to emit DER\n([Distinguished Encoding Rules](https://en.wikipedia.org/wiki/X.690#DER_encoding))\nor BER\n([Basic Encoding Rules](https://en.wikipedia.org/wiki/X.690#BER_encoding))\nencodings of\n[ASN.1](https://en.wikipedia.org/wiki/Abstract_Syntax_Notation_One)\nstructures and malformed variants of them.\n\nIt provides two tools, `ascii2der` and `der2ascii`, to convert DER ASCII to a\nbyte string and vice versa. To install them, run:\n\n    go install github.com/google/der-ascii/cmd/...@latest\n\nThese tools may be used to create test inputs by taking an existing DER or BER\nstructure, disassembling it with `der2ascii` into DER ASCII, making\nadjustments, and assembling back into binary with `ascii2der`. This avoids\nhaving to manually fix up all the length prefixes.  As a bonus, it acts as a\nhuman-readable view for DER structures.\n\nFor the language specification and basic examples, see\n[language.txt](/language.txt). The [samples](/samples) directory includes\nmore complex examples from real inputs.\n\n## Backwards compatibility\n\nThe DER ASCII language itself may be extended over time, but the intention is\nfor extensions to be backwards-compatible. Specifically:\n\n* The command-line interface to `ascii2der` and `der2ascii` will remain\n  compatible, though new options may be added in the future.\n\n* Previously valid inputs to `ascii2der` will remain valid and produce the same\n  output. In particular, checking in test data as `ascii2der` inputs should be\n  future-proof, though it is recommended to check in the generated version as\n  well in case of mistakes.\n\n* Previously invalid inputs to `ascii2der` may become valid in the future if\n  the language is extended.\n\n* `der2ascii` is necessarily a heuristic, so its output *may* change\n  over time. For example, later revisions may recognize new OIDs, tweak the\n  formatting, or disassemble a malformed DER input in a (hopefully) more\n  useful form.\n\n## Disclaimer\n\nThis is not an official",
  "github_repo": "google/der-ascii",
  "github_stars": 252,
  "github_topics": [],
  "homepage": "https://github.com/google/der-ascii",
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  "last_seen": "2026-06-20T23:34:18+00:00",
  "license": "Apache-2.0",
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  "name": "der-ascii",
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  "optional_dependencies": [],
  "rank_30d": 6134,
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  "raw_hash": "05a987a76d50629b",
  "recommended_dependencies": [],
  "revision": 0,
  "ruby_source_path": "Formula/d/der-ascii.rb",
  "tap": "homebrew/core",
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  "version_head": "HEAD",
  "version_stable": "0.8.0",
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