redact-secret · Report
API token (cio)
cio + exactly 32 [A-Za-z0-9] (35 in all); the exact body and both identifier boundaries carry the precision of the three-letter prefix.
Beta.12 arrival family crates-io-token (#528, product redact-secret#1031), contract in benchmarks/lib/beta8/528f.ts from the #1014 handoff crates-io.md. T1 (provider server code, R1). Neither pinned scanner has a crates.io rule. Since the 4fb7882 re-pin the product detector is in the pinned registry, so the row maps to it.
Research record
From credential-evidence snapshot-2026.10.06.4 · records at 77ce761 · schema 1.8.0. It describes the research on the format, not what any scanner or the product does, and not a support status.
4 events in the review history: 3 observed, 1 reviewed. Latest: observed on 2026-10-03 by automation, project maintainer. Project-maintained review is not independent validation. The family record at this release.
Format
Provider format research from credential-evidence snapshot-2026.10.06.4 · records at 77ce761 · schema 1.8.0.
What it looks like
- Descriptive pattern
^cio[A-Za-z0-9]{32}$
Parts are shown as recorded. Evidence classes belong to the facts below; no class is assigned to a part.
Format facts
Provider documented ·
provider-source· current · observed 2026-09-29rust-lang/crates.io crates/crates_io_database/src/utils/token.rs (7b2475e, 2025-12-01): TOKEN_PREFIX = "cio", TOKEN_LENGTH = 32, rand::distr::Alphanumeric; HashedToken::parse rejects any token without the prefix; re-checked 2026-09-29: cio + exactly 32 [A-Za-z0-9], 35 in all; no separator or checksum
- rust-lang/crates.io @ 7b2475e26337856ab054844c9078bb23c11b2f19: crates/crates_io_database/src/utils/token.rsprovider-documentation · last read 2026-10-03 · latest outcome read · supports cio + exactly 32 [A-Za-z0-9], 35 in all; no separator or checksum · #L10-L91
Provider documented ·
field-prefix· current · observed 2026-09-29prefix: cio
- rust-lang/crates.io @ 7b2475e26337856ab054844c9078bb23c11b2f19: crates/crates_io_database/src/utils/token.rsprovider-documentation · last read 2026-10-03 · latest outcome read · supports TOKEN_PREFIX · #L10-L91
Provider documented ·
field-body· current · observed 2026-09-29body: exactly 32 [A-Za-z0-9] (rand::distr::Alphanumeric); 35 in all
- rust-lang/crates.io @ 7b2475e26337856ab054844c9078bb23c11b2f19: crates/crates_io_database/src/utils/token.rsprovider-documentation · last read 2026-10-03 · latest outcome read · supports TOKEN_LENGTH = 32, Alphanumeric · #L10-L91
Unresolved ·
field-boundary· current · observed 2026-09-29boundary: a token glued to an identifier on either side ([A-Za-z0-9_-]) is not claimed; cio + 32 inside a longer alphanumeric run is never truncated (Handoff boundary decision, not a provider statement. It is load-bearing for the three-letter cio prefix.)
- redact-secret/redact-secret @ 4f220ea000b58fa2e0e431ad88dea4eccb393fb0: docs/audits/evidence/1014/crates-io.mdprovider-documentation · last read 2026-09-29 · latest outcome read · supports short prefix; implementation notes
Provider documented ·
field-transport· current · observed 2026-09-29transport: CARGO_REGISTRY_TOKEN; [registry] token in ~/.cargo/credentials.toml; cargo publish --token; a trusted-publishing token minted in CI and exported for cargo publish
- redact-secret/redact-secret @ 4f220ea000b58fa2e0e431ad88dea4eccb393fb0: docs/audits/evidence/1014/crates-io.mdprovider-documentation · last read 2026-09-29 · latest outcome read · supports role and blast radius; test axes
Tool corroborated ·
field-peer-lag· current · observed 2026-09-29peer-lag: no crates.io rule in trufflehog 3.97.4 or gitleaks 8.30.1: both lag on every positive. noseyparker (not pinned here) has \bcio[a-zA-Z0-9]{32}\b and no cio_tp_ rule
- gitleaks/gitleaks @ v8.30.1: config/gitleaks.tomlscanner-rule-source · last read 2026-10-04 · latest outcome read · supports no crates.io rule
- redact-secret/redact-secret @ 4f220ea000b58fa2e0e431ad88dea4eccb393fb0: docs/audits/evidence/1014/crates-io.mdprovider-documentation · last read 2026-09-29 · latest outcome read · supports tier rationale
- trufflesecurity/trufflehog @ v3.97.4: pkg/detectorsscanner-rule-source · last read 2026-09-29 · latest outcome read · supports no crates.io detector directory at the pinned version
Unresolved ·
listed-references· current · observed 2026-09-29The legacy contract lists 10 references without stating which property each supports.
- redact-secret/redact-secret @ 4f220ea000b58fa2e0e431ad88dea4eccb393fb0: docs/audits/evidence/1014/crates-io.mdprovider-documentation · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
- github.com/redact-secret/redact-secret/issues/1031issue-or-discussion · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
- redact-secret/redact-secret @ 4f220ea000b58fa2e0e431ad88dea4eccb393fb0: docs/audits/evidence/1014/README.mdprovider-documentation · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract · #ruling-questions-for-the-maintainer
- redact-secret/redact-secret @ 4f220ea000b58fa2e0e431ad88dea4eccb393fb0: docs/audits/evidence/1014/README.mdprovider-documentation · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
- github.com/redact-secret/redact-secret/issues/1014issue-or-discussion · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract · #issuecomment-5900447282
- github.com/redact-secret/redact-secret/issues/1014issue-or-discussion · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
- github.com/redact-secret/redact-secret/issues/860issue-or-discussion · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract · #issuecomment-5852413851
- github.com/redact-secret/redact-secret-benchmarks/issues/528issue-or-discussion · last read 2026-09-29 · latest outcome read · supports Listed as a reference by the legacy contract
- rust-lang/crates.io @ f937ab051067e793ed647c7b587a5419db85949b: crates/crates_io_trustpub/src/access_token.rsprovider-documentation · last read 2026-10-03 · latest outcome read · supports Listed as a reference by the legacy contract · #L21-L102
- rust-lang/crates.io @ 7b2475e26337856ab054844c9078bb23c11b2f19: crates/crates_io_database/src/utils/token.rsprovider-documentation · last read 2026-10-03 · latest outcome read · supports Listed as a reference by the legacy contract · #L10-L91
Provider documented ·
dossier-research· current · observed 2026-09-29Legacy dossier research (verdict ready, tier T1) cited 2 sources; the dossier does not attribute sources to individual properties.
- redact-secret/redact-secret @ 378581770a87751d72e27529796c4f790649fd00: docs/audits/evidence/1014/crates-io.mdproject-research-note · last read 2026-09-29 · latest outcome read · supports Final research evidence recorded by the legacy dossier
- rust-lang/crates.io @ 7b2475e26337856ab054844c9078bb23c11b2f19: crates/crates_io_database/src/utils/token.rsprovider-documentation · last read 2026-10-03 · latest outcome read · supports Cited by the legacy dossier research for this family · #L10-L91
Provider documented ·
taxonomy-sources· current · observed 2026-09-29The legacy taxonomy lists 2 sources for this family. The taxonomy records no date; the dossier researchedAt is used as the observed-at date.
- redact-secret/redact-secret @ 4f220ea000b58fa2e0e431ad88dea4eccb393fb0: docs/audits/evidence/1014/crates-io.mdprovider-documentation · last read 2026-09-29 · latest outcome read · supports Listed as a source for this family in the legacy taxonomy
- rust-lang/crates.io @ 7b2475e26337856ab054844c9078bb23c11b2f19: crates/crates_io_database/src/utils/token.rsprovider-documentation · last read 2026-10-03 · latest outcome read · supports Listed as a source for this family in the legacy taxonomy · #L10-L91
Open questions
No open question is recorded for this revision.
Benchmark dossier notes
From the provider dossier, as written. The evidence level above says how well the format is backed; a fact the dossier does not record is not shown.
- Shape
cio+ exactly 32[A-Za-z0-9](35 in all).- Basis
- T1 under R1 from the server code; unprefixed tokens are no longer accepted.
- Issuance
- not attempted; the grammar is T1 from provider sources, so no key is needed.
- Contract in core
- detector-families.md (row on
main; the Beta.12 detector, redact-secret#1031, merged in redact-secret#1039 and is unreleased).
In this benchmark
Fixture rows on the current run. Counts are for redact-secret in published · redact-secret 0.1.0-beta.14 mode.
- Fixtures
- 37
- Left readable
- 0
- Redacted too much
- 0
- False alarms
- 0
37 fixtures: 16 expect a redaction, 21 must stay quiet. See every row
| Evidence level | Fixtures | Left readable | Too much | False alarms |
|---|---|---|---|---|
| T1Provider-documented | 24 | 0 | 0 | 0 |
| T3Project policy | 13 | 0 | 0 | 0 |
Every scanner on the same fixtures
In run order. Counts are what each scanner recorded on this family's fixtures, whichever rules it has; a scanner with no rule for the family has nothing to report on it.
| Scanner | Fixtures | Left readable | Too much | False alarms |
|---|---|---|---|---|
| flare-redactRuntime library · 1.6.1 · Published npm package · secrets-only (pii, generic_assignment disabled) · JavaScript engineNo rule maps to it | 37 | 15 | 1 | 0 |
| gitleaksRepository scanner · 8.30.1 · Directory scan · default rulesNo rule maps to it | 37 | 8 | 0 | 0 |
| redact-secretProduct measured here · 0.1.0-beta.14 · Published npm package · default detectors1 detector mapped | 37 | 0 | 0 | 0 |
| trufflehogRepository scanner · 3.97.4 · Filesystem scan · verification disabledNo rule maps to it | 37 | 16 | 0 | 0 |
Looks like it, but isn't
Values the dossier records as resembling this credential without being one.
- Collisions
ciois a trigram: the exact body and both identifier boundaries carry the precision; a standalone random 35-byte value starting withciois the accepted false positive.
Scanner rules for this family
Mapped by hand (reviewed 2026-09-30) from each scanner's pinned rule file, never from what a scanner found on the fixtures.
No peer rule maps to this family
None of the reviewed peer scanners has a rule that can match a credential of this family.
None mapped
Fixtures in this family
37 rows, redact-secret's outcome on each. Rows that need a look come first (0), then the rest in corpus order. Choose "Every scanner" to see each scanner's outcome for the same rows.
| Fixture | Kind and evidence | redact-secret |
|---|---|---|
crates-io-token-actions-envcrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-bare-prosecrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-bearer-headercrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-cargo-logincrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-cargo-publish-tokencrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-chat-pastecrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-credentials-tomlcrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-dotenvcrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-exportcrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-json-api-keycrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-json-tokencrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-key-shape-barecrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-key-shape-quotedcrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-key-shape-unicode-crlfcrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-sdk-kwargcrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-x-api-key-headercrates-io · documented-format-literal | Must redactT1 · Provider-documented | Redacted |
crates-io-token-actions-secret-referencecrates-io · templated-reference | Must not flagT3 · Project policy | Quiet |
crates-io-token-angle-brackets-placeholdercrates-io · documentation-placeholder | Must not flagT3 · Project policy | Quiet |
crates-io-token-body-31-twincrates-io · wrong-length | Must not flagT1 · Provider-documented · twin | Quiet |
crates-io-token-body-33-twincrates-io · wrong-length | Must not flagT1 · Provider-documented · twin | Quiet |
crates-io-token-cio-identifiers-public-idcrates-io · public-identifier | Must not flagT3 · Project policy | Quiet |
crates-io-token-cio-inside-long-run-encoded-valuecrates-io · benign-encoded-value | Must not flagT3 · Project policy | Quiet |
crates-io-token-cio-words-prosecrates-io · prose-mention | Must not flagT3 · Project policy | Quiet |
crates-io-token-ellipsis-placeholdercrates-io · documentation-placeholder | Must not flagT3 · Project policy | Quiet |
crates-io-token-env-reference-referencecrates-io · templated-reference | Must not flagT3 · Project policy | Quiet |
crates-io-token-hyphen-in-body-twincrates-io · wrong-alphabet | Must not flagT1 · Provider-documented · twin | Quiet |
crates-io-token-label-prosecrates-io · benign-lookalike | Must not flagT3 · Project policy | Quiet |
crates-io-token-leading-glue-twincrates-io · boundary-violation | Must not flagT3 · Project policy · twin | Quiet |
crates-io-token-leading-underscore-twincrates-io · boundary-violation | Must not flagT3 · Project policy · twin | Quiet |
crates-io-token-maskcrates-io · benign-lookalike | Must not flagT3 · Project policy | Quiet |
crates-io-token-prefix-onlycrates-io · benign-lookalike | Must not flagT1 · Provider-documented | Quiet |
crates-io-token-referencecrates-io · benign-lookalike | Must not flagT3 · Project policy | Quiet |
crates-io-token-short-bodycrates-io · benign-lookalike | Must not flagT1 · Provider-documented | Quiet |
crates-io-token-trailing-underscore-twincrates-io · boundary-violation | Must not flagT3 · Project policy · twin | Quiet |
crates-io-token-truncated-near-misscrates-io · format-near-miss | Must not flagT1 · Provider-documented | Quiet |
crates-io-token-underscore-in-body-twincrates-io · wrong-alphabet | Must not flagT1 · Provider-documented · twin | Quiet |
crates-io-token-uppercase-prefix-twincrates-io · prefix-near-miss | Must not flagT1 · Provider-documented · twin | Quiet |
Sources
Researched 2026-09-29.
Documentation and code
- github.com/rust-lang/crates.io/blob/7b2475e26337856ab054844c9078bb23c11b2f19/crates/crates_io_database/src/utils/token.rs#L10-L91
- github.com/redact-secret/redact-secret/blob/4f220ea000b58fa2e0e431ad88dea4eccb393fb0/docs/audits/evidence/1014/crates-io.md
Research log
- redact-secret/redact-secret#1014Research issue
- redact-secret/redact-secret#1031Research issue
- redact-secret/redact-secret#1039Research issue
- redact-secret/redact-secret-benchmarks#528Research issue
- Final evidence, pinned to a commit/redact-secret/redact-secret/blob/378581770a87751d72e27529796c4f790649fd00/docs/audits/evidence/1014/crates-io.md