The drop zone stretched to the height of the list of test capsules
beside it, with its words lost in the middle of the screen, and that
list, developer material in English, filled the page. Now the page
asks for the capsule in one column, with a drop zone of its own size,
and the examples are folded under "Probar con una cápsula de ejemplo".
The menu says "Abrir", and the fields of a capsule that needs a key
speak of the key and of the secret key of age, as /create does.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The author found the pages too technical and did not want a dark
background. With the frontend design guidance:
- The site is always light, whatever the system asks.
- A capsule is a letter posted to the future: white paper, blue ink,
an old-style serif for the voice of the page (Palatino, Iowan) and a
DIN-like sans for the form (Bahnschrift), all system fonts, as the
CSP allows no other origin. Blue is what you act on.
- /create asks three questions, with short sentences: what it keeps,
when it opens, who can open it. The date it opens is set large on an
airmail envelope with the button that creates the capsule; quick
dates of 1, 5 and 10 years; sizes in KB and MB; everything technical
folded in "Detalles técnicos". The messages of the rules no longer
name R4 or §29.6.
Fixes of the review of the pages:
- /inspect labels the start of a single file as content of the
creator, unchecked, so that it cannot pass for a verdict; keeps ZWNJ
and ZWJ in the comment and the author, which R4b allows; and says
the right thing without files and without a comment.
- /create pins at most 500 more rows with problems and counts the
rest; shows what happened with a drop, not only to screen readers;
a comment or an author over its limit is its own problem, not that
of the files; a writing cannot start after the page is destroyed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Reader:
- PAYLOAD_AGE reaches age in pieces of one STREAM chunk, read only when
asked (agefile.chunked): a whole payload was decrypted ahead of step
17, with more memory, and a later STREAM failure hid the failure of
the reader that Go reports. The text still differs from Go when the
capsule is cut right after a full chunk: age-encryption holds that
chunk until it sees one more byte.
- The unusable head extensions are found before the commit, so the
sink is never aborted after it; a registry whose validateData throws
rejects the data; getWriter of a created file is inside the failure
of the sink; the sink gets copies, which it may keep or transfer.
Writer:
- Each piece of a file is copied as it is read: a source that reuses
its buffer could make the head record a SHA-256 that is not that of
the bytes encrypted, and the capsule would not open.
- A FileSource written as a class works: open is called on its object,
and each property is read once. Extensions of the wrong types are a
TypeError. In memory, the limit is checked before reading anything.
A chunk that is not a Uint8Array, and a lone surrogate in a path, are
named.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- README: format 3 in the table of contents and in the current
version, and the coverage thresholds as vitest.config.ts has them,
prefix.ts and the modules of the page included.
- /create: each path is a textarea of one row that grows with its
content where the browser can size it, so that a long path shows
its end, the file name, on a phone of 375 px too. Enter adds no line.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The tests of create-files.ts, format.ts, opening.ts and create-input.ts
held literal code points that a reader cannot tell apart, or cannot
see: U+212A KELVIN SIGN and U+017F LONG S, fullwidth and dotted I,
ZWJ, a combining acute, U+202E and U+FEFF, and equalFold compared with
two of them in its code. They are now \uXXXX escapes, with the same
values; no source in src or scripts holds a format character.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The page seals files and folders, chosen or dropped, with a comment
and a declared author, into a capsule of format 3.
- create-files.ts, with the first load: the files as the person chose
them, a dropped folder walked with webkitGetAsEntry and named first
in each path as webkitRelativePath does, the files of a system left
out of folders as collect.go leaves them out (strings.EqualFold for
.DS_Store, Thumbs.db and desktop.ini, ._* and __MACOSX), and the
list of editable paths.
- create-check.ts, on demand with the tables: every problem of every
path, and of the comment and the author, in Spanish, from the
violations of pathrule.ts. A property test holds that the page sees
no problem exactly when checkPath and checkTree accept the paths.
- lengths.ts: measureFiles, headLengthOf and bodyLengthOf, so that
the exact size is planned again without sorting the files again.
- creator.ts: several files, the comment and the author, the progress
of both readings of encryptFiles, the cancellation in the first
one, and the room checked before reading anything.
Checked in Chromium: Go's datekeys decrypt and /inspect open a capsule
that the page wrote, with its six files, their mtimes, the author and
the comment.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The page opens capsules of format 3. The files go to the temporary
file through a ZipSink, a lone file of one segment as it is and a ZIP
otherwise, or to memory; the page shows the verdicts first, then the
declared author and the comment as unchecked text of the creator, and
then each path as text in a bdi, with its size, its mtime and the
warnings of the CLI of the reference, compared by their key of R7.
- files.ts: pathWarnings, fileFacts, and the names and order of the
downloads: the file itself when it is the only one, with the ZIP of
its folder second (decision 8), or the ZIP and each file.
- opener.ts: OpenedFiles, and noRoom when the ZIP does not fit.
- zipsink.ts: NoRoom, thrown by begin before writing anything.
- check-build.mjs: the tables of pathrule-tables.ts never come with
the first load of a page, and do come with the code on demand of
/inspect and /create.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
zipsink.ts is the sink of the page for a format 3 capsule (design of
format 3, section 5). Its files go to the temporary file of OPFS: the
file itself when the capsule holds one file of one segment, and
otherwise a ZIP of stored entries laid out from the head before any
byte arrives. Each local header is written at its offset, the bytes of
the file follow as open delivers them, the CRC-32 of the entry is
patched in its header with a positioned write, and commit writes the
central directory and closes the file; abort discards it, also when
the opening failed before begin. Each file is a contiguous range of the
file written (ranges), and zipOf makes the same ZIP in memory as a Blob
of its parts.
tempfile.ts: the writable of a temporary file takes TempChunk, bytes at
the position of the file or at a given one, as
FileSystemWritableFileStream does; cancellable is generic.
Interoperability: scripts/zip-ts-samples.mjs writes the samples of
testing/zip.ts with ZipSink, and scripts/zip-go-read.go reads them with
archive/zip of the Go standard library: names out of ASCII with bit 11,
stored entries, their CRC-32 and sizes, the times of the extra fields
in 1970, at 2^31 - 1 and after it, in 9999 and the time of the round for
a file without one, and 65535 entries, ZIP64 by their number. The
reading is frozen in testing/zip-vectors.json, and zipsink.test.ts
writes each sample again, requires its SHA-256 and computes the entries
Go must have read. zipsink.ts is covered at 100 %.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
capsule-vectors.json is written again with six capsules of format 3
from encryptFiles, next to the thirteen of format 2:
- one file with its mtime; a tree of seven files, one of them over two
STREAM chunks, with paths out of ASCII and the pair U+FFFD and
U+10000, which UTF-8 and UTF-16 order the other way round, a comment
and a declared author; a comment and no file; bloque256; time_and_key
with three recipients and a portable key; and head extensions.
- capsule-go-verdicts.go opens them with capsule.Open into a Sink, with
each credential alone and with all of them, and records the files it
receives with their SHA-256, the head encoded again with
capsule.EncodeHead and the verdicts of the security area. It decodes
the control of each capsule in the format of its prelude, and runs
capsule.Encrypt on the invalid options as a generator of test vectors.
- interop.test.ts requires Go to find the files, the head and the
verdicts written, and open, into a MemorySink, to reach the same
verdicts on the same bytes.
The format 2 samples, the mixes, the encoder differential (500 equal),
the recipients and the 21 option errors are regenerated too, with the
same verdicts.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Spec 62.1 rule 1: a writer writes format 3, and only a generator of test
vectors may write format 2. As capsule.Encrypt at spec-v0.10, encrypt now
fails without EncryptOptions.testVectors, and with a comment, a declared
author or head extensions, which format 2 has no place for, with the
texts of the reference, before anything else is checked. The tests of
the writer, encryptWith, the interoperability cases and the sample
script ask for it.
The create page writes format 3 with encryptFiles: the chosen file goes
under its name, which is its path in the capsule, with its modification
time, both sealed in the head. The plan carries the file as encryptFiles
takes it, and its size is exact again with bodyLength. A name that
breaks a rule of the paths makes the writing fail with the text of the
rule; several files, folders, editable paths, the comment and the
author come with step 7.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
encryptFiles(files, opts) writes a .dkc of format 3 as
capsule.EncryptFiles at spec-v0.10, on the sealer of the previous
commit:
- newHead: the comment, with CR LF and a lone CR turned into LF, the
declared author and every path checked with the rules of the reader,
in the words of a writer (spec 62.1 rule 15); the files in the byte
order of their paths, not the UTF-16 order of JavaScript strings; and
the mtime in seconds from 1970 to 9999, none outside.
- L measured with a head whose salt and SHA-256 are zero, at most 16 MiB
and L_MAX; the first reading hashes each file; the head with a fresh
salt, the empty security area and the frame are checked with the rules
of the reader before anything is written.
- BODY is the content of seal: the frame, the area, the head and the
files read a second time, which fail if a size or a SHA-256 changed
(rule 18), with the texts of readSource.
FileSource describes a file (path, size, mtime in milliseconds, open),
and fileSource makes the one of a File or a Blob. The draws gain the
salt of the head. lengths.ts gains bodyLength and headLength, which
measure the head from the sizes of its CBOR items without the Unicode
tables, and mtimeSeconds and headComment, which the writer shares.
Tests: the five fixtures that EncryptFiles wrote are reproduced byte for
byte, PRELUDE, PUBLIC_HEADER, CONTROL_CBOR, HEAD_CBOR and BODY, and
their .dkk; capsuleLength with bodyLength gives the size written, and
headLength agrees with encodeHead on 300 random heads around every
boundary of the CBOR heads; the invalid inputs give the texts that
capsule.EncryptFiles gives to the same inputs, taken from the reference
with a scratch program. writer.ts, encrypt.ts and lengths.ts stay at
100 %.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
writer.ts follows the sealer of capsule/encrypt.go at spec-v0.10, so that
the writer of format 3 can share everything but its content:
- newSealer: the copies of the options, the profile, the clock, the
padding rule with a first L, the DateKey and the credentials, in the
order and with the texts they had;
- seal: steps 7 to 19 for a format and a content of L bytes given in
pieces, which plaintextStream follows with the zeros of the padding;
- sourceContent: the content of format 2, with the texts of the source
that ends early or delivers more than L.
No behaviour changes: the 175 tests of the writer pass unchanged, and
writer.ts stays covered at 100 %.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Syncs testdata with datekeys-go at the tag spec-v0.10 (cc35d2c) and
moves the reader to the DateKeys Protocol Specification v0.10. The
three capsule formats are read.
- framing: FORMAT_3, and isPadded for formats 2 and 3. control: schema
version 3, with the keys 6 and 7 of version 2. SPEC_VERSION is 0.10.
- open: OpenOptions.sink receives the files of a format 3 capsule
(sink.ts: Sink with begin, create, commit and abort, as capsule.Sink,
and MemorySink). Without one, open rejects with a TypeError right
after step 2, before any request, as ErrSinkRequired. Opened gains
head, verdicts, areaLen and unusableHeadExtensions.
- open3.ts: step 17 of format 3 in its substeps 17.2 to 17.8, as
openBody of the reference: a failure of age or a plaintext whose
length is not P prevails, the first failing substep decides, and the
codes other than ERR_INTEGRITY are reported only after reading
PAYLOAD_AGE to its end. Reads grow with the bytes received, never
with the lengths BODY declares. A failure of the sink is ERR_INTEGRITY
with its text, and the sink is aborted once after begin.
- The page: opener.ts opens the fixtures of format 3 into a
MemorySink; the open panel says that it does not deliver their files
yet, and the glosses of the steps name format 3. check-build.mjs
refuses to ship the heads, salts, comments and paths of the format 3
fixtures.
Tests: the 21 fixtures, format 3 laid out byte by byte from its record
and opened into a sink with its files and verdicts; the 209 cases of
the corpus from memory and from a Blob, with the code, the step and,
new, the exact text of capsule.Open, frozen by
scripts/mutation-go-texts.go in testing/mutation-texts.json, which
replays the corpus as internal/testkit does (its extension validator
texts included); the 5110 differential cases over 14 bases; paths,
path_fold, head_schema and security vectors; the control of schema
version 3 in cbor.json; and step 17 on crafted plaintexts sealed again
to I_PAYLOAD, whose texts capsule.Open gives on the same plaintexts.
ibe-vectors.json gains the nine format 3 fixtures from
scripts/ibe-go-vectors.go; the twelve before are unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
body.ts, security.ts and head.ts port format3.go of the Go reference at
spec-v0.10:
- body.ts: the frame of BODY (spec 29.2), AREA_LEN, SECURITY_LEN and
HEAD_LEN with their limits, and the zeros of the security area, all
ERR_INTEGRITY.
- security.ts: the empty SECURITY_CBOR that writers write, and the
verdicts X, F0, F1, S0, S1 and S2 of spec 29.7 with the Spanish lines
of the official SDK. The evaluation never fails and carries no code.
- head.ts: HEAD_CBOR in the layers of spec 69.1: R1 and R8 in the CDDL,
R8 by UTF-8 bytes and not by the UTF-16 order of JavaScript strings;
then the comment, the declared author, the paths with pathrule.ts, the
layout of the files, R7 and R9, all ERR_HEAD_INVALID; and the critical
extensions of the new extension object "head". decodeWrittenHead
leaves the extensions to the caller, for the self-check of the writer.
ERR_HEAD_INVALID becomes the 19th normative code, with its gloss.
Tests: the cases of format3_test.go and a few more, with the error
texts and the verdicts of the reference byte for byte, taken from it at
spec-v0.10 with a scratch program. Coverage 100 %.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The page delivers the files of a format 3 capsule in a ZIP of its own
(design of format 3, section 5): stored entries with UTF-8 names, no
data descriptors and no entries for folders. The head gives every size
before any byte arrives, so the layout is known in advance and each file
is a contiguous range of the ZIP, offered as a download of its own. The
CRC-32 of an entry is patched in its local header after its bytes.
Times go in DOS, in UTC and clipped to 1980-2107, in the NTFS extra
field, which governs, and in the extended timestamp when they fit in 32
signed bits. ZIP64 applies by the size or offset of an entry and by the
number of entries or the size of the central directory.
Both modules live in src/lib/inspector: the reference has no ZIP, only
the page. Coverage 100 %.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
pathrule-tables.ts holds the fixed Unicode 18.0.0 and WindowsBestFit
tables of spec §29.5.1, written by internal/pathrule/gen -ts of
datekeys-go (13910b3) from the same pinned files as the Go tables.
pathrule.ts ports internal/pathrule at spec-v0.10: NFD, the case
folding and the key of R7, the rules R1 to R10 with R4b, R6b, R6c and
R9, and the text rules of the comment and the declared author (§29.6).
It never uses normalize, toLowerCase, localeCompare, Intl or the
Unicode property classes of regular expressions, whose version of
Unicode changes with the engine. The limits count UTF-8 bytes, and every
error text is the one of Go, byte for byte.
Tests: the cases of the Go tests with their exact messages, and the
SHA-256 of the canonical text of the tables, recomputed in TypeScript,
against TABLES_DIGEST. Coverage 100 %.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
When a capsule opens, /inspect now shows its content right under the
verdict, before steps 9 to 18. A capsule does not keep the name of the
file it seals (spec §6, §55.2), and the capsula-<date>.dkc of /create
has no extension of its own, so the download was nameless for the
system: contentExtension now gives it .txt for a text, or the
extension of a common type of file by its first bytes (.pdf, .png,
.jpg, .zip…).
vite preview served the pages without Cache-Control, and a tab
reloaded after a build could keep the old page, whose chunks are gone;
a small plugin, before SvelteKit's, has the pages revalidated.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
/inspect showed the plaintext only of the official fixtures; a capsule
of one's own was only offered for download. Now the start of the
plaintext is shown whenever the capsule opens and it is text:
opener.ts reads its first 128 KiB (PREVIEW_BYTES), from memory or from
the temporary file, and plaintextPreview in opening.ts shows up to
100 000 characters of printable UTF-8, cut on a whole character. A text
written on Windows shows too: CR LF as a line feed, no BOM. The
download keeps the exact bytes.
The pages now explain age keys: /create, in a folding block, what an
age1… recipient is and how to get one with age-keygen; /inspect, next
to the identities, which line of the age-keygen file to paste.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
/create seals a person's file into a .dkc of format 2 and, when asked, a
portable .dkk, in the browser and without network, with the decisions the
author confirmed in step 6: time_only by default, the zone of the device
with a selector, the warnings of §53 and §50 beyond 365 days, a notice of
preliminary protocol, and files named capsula-<opening time, UTC>.
- lengths.ts: sealedControlLength moves out of writer.ts, and
capsuleLength gives the size of the .dkc before writing it; the
property loop checks it on every capsule (500 seeds pass).
- datekey.ts: LONG_HORIZON_SECONDS and isLongHorizon.
- src/lib/inspector: localtime.ts (local times of a zone as UTC instants,
a skipped time refused, a repeated one taken at its later instant),
create-input.ts (the form, checked in its order) and creator.ts (the
writing, loaded on demand), all at 100 %.
- The .dkc goes to an OPFS temporary file, committed only when complete
and checked, or to memory up to 64 MiB; the writing can be cancelled.
The .dkk stays in memory only; losing it when it is the only
credential asks for confirmation.
- /inspect also cleans the temporary files of /create, and check-build
checks the code loaded on demand of both pages.
Checked in the browser on the production build: a capsule made for four
minutes later opened afterwards in /inspect with the pasted release and
with datekeys decrypt of Go over the network, to the same content. An
adversarial review found one major and eight minor issues, all fixed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
scripts/capsule-ts-samples.mjs writes thirteen capsules of format 2 with
encrypt (both policies and padding rules, 0 to 16 credentials, chunk
borders, extensions in the three objects, an instant with nanoseconds),
four mixes of two capsules, the inputs of an encoder differential drawn
from a seed, a corpus of recipient strings and the invalid options that
Go also rejects. scripts/capsule-go-verdicts.go gives the verdicts of the
reference on them:
- capsule.Inspect, and capsule.Open with each credential alone and all
together: every sample opens to its content, with format 2 and the L,
padding rule and P requested;
- SEALED_CONTROL opened layer by layer with the agewrap identities, 16
stanzas in INNER_ACCESS_AGE, and PUBLIC_HEADER, CONTROL_CBOR and the
.dkk encoded again to the same bytes;
- the code and step of each mix;
- EncodeHeader, EncodeControl (format 2) and MarshalBody equal on all 500
encoder inputs;
- the texts of age.ParseX25519Recipient, agewrap.CheckX25519Recipient and
capsule.Encrypt, equal to those of this library.
The capsules are random, so the output is frozen in
src/lib/dkc/testing/capsule-vectors.json, and interop.test.ts checks the
verdicts of Go and that open reaches the same ones on the frozen bytes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
encrypt(src, opts) writes a .dkc of format 2 and, when asked, a portable
.dkk (spec §61, §62, §62.1), in the order and with the texts and codes
of capsule.Encrypt:
- L known in advance: the size of a Uint8Array or a Blob, or the length
declared with a ReadableStream; a source of another length fails with
Go's texts;
- reforzado padding by default, or bloque256;
- 1 to 16 credentials, canonical and not of low order, a dummy in each
slot left, whose scalar is wiped once its public key is derived, and
a uniform order of the 16;
- SEALED_CONTROL_LEN from the formula of §62.1, checked against the
real seal;
- the self-checks of rule 11, plus OUTER_TIME_AGE under the reader's
rules and the header of PAYLOAD_AGE opened by I_PAYLOAD before
anything is written.
The content is streamed in pieces of 64 KiB, then the zeros of the
padding, into memory (up to MAX_MEMORY_DKC) or an output that is closed
only once the capsule is complete and checked and aborted on any
failure. The core in writer.ts takes its random values from the caller:
encrypt.ts passes crypto.getRandomValues, and only testing/encrypt.ts
fixes them.
Tests: the deterministic sections of the seven format 2 fixtures of Go
byte for byte; round trips with open for both policies, 1 to 16
credentials and every padding boundary; the invalid options; streaming
and failures of the source and the output; the internal errors with
age-encryption replaced by a spy; a property loop (50 seeds per run,
500 by hand).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- recipient.ts: age1… recipients as age 1.3.2 reads and writes them, the
rules of spec §37 with the texts of agewrap.CheckX25519Recipient (the
five low-order u checked by list, the twist accepted as in Go), and a
recipient list read line by line. No noble.
- random.ts: an index without bias and the Fisher-Yates permutation of
the 16 slots, with Go's uniformity test.
- agefile.ts: the whole-age-file helpers of the opening, shared with the
writer's self-checks.
- x25519.ts: newX25519Identity and x25519PublicKey (RFC 7748 vectors);
digest.ts: sha256Hasher; datekey.ts: compareInstants, used by open.ts,
and isInstant.
- tempfile.ts: an area for the opening and one for creating capsules.
- Guards: age-encryption and the writer core have import allowlists, and
index.ts re-exports neither the opening nor the writer.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
datekeys-ts 0.1.0 inspects and opens DateKeys capsules of both formats
of spec v0.9 (tag spec-v0.9 of datekeys-go), in memory or streaming,
with the /inspect page. The writer of phase 3 comes with 0.2.0.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Syncs testdata with datekeys-go at spec-v0.9 (7e2d83c) and moves the
reader to the DateKeys Protocol Specification v0.9. Both capsule formats
are read; a format 1 capsule keeps the verdict v0.8.2 gave it.
- framing: the VERSION of the prelude is the capsule format, 1 or 2
(Prelude.format, FORMAT_1, FORMAT_2, isFormat).
- control: decodeControl and encodeControl take the format; schema
version 2 adds payload_length (8 bytes, at most L_MAX) and padding
(1 or 2).
- padding.ts: the rules bloque256 and reforzado of spec §29.1, exact up
to L_MAX with BigInt bit lengths and ceil roundings, and the length of
PAYLOAD_AGE.
- open: exactly 16 stanzas in INNER_ACCESS_AGE of format 2 (step 12), P
at step 16, and at step 17 a plaintext of exactly P bytes whose
padding is zero; only the first L bytes are delivered, never the
padding. Step 17 is recorded when it passes, and step 18 gives the
bytes of content, as the reference does. Opened reports the format, L
and, in format 2, the rule and P.
- inspect: the JSON view carries format, as datekeys inspect -json.
- The page shows the format, warns about format 1, and gives the
padding rule and P once a format 2 capsule opens.
Tests: the twelve fixtures, the 125 mutation cases through open from
memory and from a Blob, the 4380 differential cases, padding.json, the
format 2 CBOR vectors, and padding.test.ts against a BigInt statement of
§29.1. The error texts of the 125 corpus cases were compared with
capsule.Open at spec-v0.9. ibe-vectors.json gains the seven format 2
fixtures from scripts/ibe-go-vectors.go; its frozen values are unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The handoff, the plans and the protocol review describe the whole project,
not this implementation, so they move unchanged to the private docs
repository next to this one (../docs, commit 6e8d6c6).
The folder is being renamed from App to datekeys-ts, to match datekeys-go.
The package name, the README title and the site's licence notice follow.
The README points to the prototype's new place, ../archive/prototype.
npm run verify is green: 2,611 tests, build and build checks.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- docs/PLAN_fase3_escritura.md: draft plan of the TypeScript writer,
pending the author's decisions and a rework on spec v0.9.
- docs/REVISION_completitud_protocolo.md: internal, AI-assisted review
of how complete the protocol is.
- docs/HANDOFF.md: state at stop, the v0.9 decisions D1-D7, the open
questions and the order of work for tomorrow. The v0.9 draft is on
branch v0.9 of datekeys-go (1189f2f); the final-review fixes may be
partial.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
After steps 1 to 8, a valid capsule whose date has passed on the device
clock can be opened in the page: steps 9 to 18 of spec section 63 with
open, loaded on demand with a dynamic import (opener.ts), so noble and
age-encryption stay out of the first load of every page.
- The release is supplied directly by the person (spec 63, step 10):
drand's JSON answer or the bare signature, pasted after opening the
drand URL the page links to, or the release in the record of an
official fixture. The page never fetches it and reads only its round
and signature (spec 11, 13). The CSP is unchanged.
- time_and_key credentials: a .dkk (readAccessKey reads at most
12 bytes + 16 MiB + 1) or age identities, one per line.
- The plaintext of the person's own file goes to a temporary OPFS file
(tempfile.ts), committed only after step 18 (spec 56), offered for
download and deleted on request, with another capsule, on pagehide
and, if left over, on the next visit. One directory and one Web Lock
per tab keep other tabs' clean-up away from files in use. Without
OPFS, or when the browser refuses it, capsules up to 64 MiB open in
memory. An opening in progress stops when another capsule is loaded.
- opening.ts builds the page model of steps 9 to 18 as the reference
records them; fixtures show their plaintext and compare its SHA-256
with their record.
- licenses.txt: the notices of tlock-js (ibe.ts) and age (bech32.ts),
the license of every package in the client bundle, Vite's and
rolldown's runtime code, and the site's own license. check-build now
fails if a notice is missing, or if a page loads noble, @scure/base
or age-encryption with its first load.
- The home page no longer says that the page never asks for keys.
Checked in the browser on the production build: the time_only,
time_and_key_portable (with its .dkk) and time_and_key_recipients (with
a pasted identity) fixtures open with the SHA-256 of their records; a
tampered signature fails at step 10 and a tampered STREAM chunk at step
17, with no download and no file left; an own file opens to OPFS,
downloads without a CSP violation and is deleted with its lock; a left
over directory goes on the next visit; no request leaves the origin.
An adversarial review (four dimensions, each finding checked by a
refuter) confirmed 15 findings, all fixed here.
2611 tests; coverage 100 % of the new modules, now a threshold.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- ibe.ts gains encryptOnG2RFC9380, EncryptCCAonG2 of kyber with the
suite of tlock for Quicknet. Qid is H(id) on G1 with the RFC 9380 DST,
sigma comes from crypto.getRandomValues, U = r·G2, V = sigma XOR
H2(e(Qid, key)^r) and W = msg XOR H4(sigma). The key passes the
canonical gate, and sigma and the masks are wiped. encryptOnG2WithSigma
takes a given sigma, for the vectors only; index.ts exports neither.
- tlock.ts adds timeRecipient, the age-encryption Recipient of
OUTER_TIME_AGE, as Go's agewrap.TimeRecipient. It writes the stanza
"tlock <round> <chain hash>" with the checks and texts of
NewTimeRecipient: the scheme and the pinned key, then the round range.
age-encryption has no labels, so the writer of phase 3 adds it alone.
Vectors, in src/lib/dkc/testing/tlock-vectors.json from
scripts/tlock-go-vectors.go:
- Fixed-sigma encryptions of 1, 16 and 32 bytes for rounds 1000 and
1001. Go restates EncryptCCAonG2, since kyber draws sigma itself, and
checks the restatement with ibe.DecryptCCAonG2 and tlock.TimeUnlock.
encryptOnG2WithSigma reproduces them byte for byte.
- The samples of scripts/tlock-ts-samples.mjs, which Node runs on the
TypeScript sources: IBE bodies and age files that this library made
for rounds 1000 and 1001. Go opened every one: the bodies with
tlock.TimeUnlock and the age files with age.Decrypt and
agewrap.NewTimeIdentity, the identity of step 11. It got the same
file keys and plaintexts, and the samples are frozen with those
verdicts.
tlock.test.ts replays both blocks, the random round trip, the
rejections with their texts, and an age file sealed with timeRecipient
and opened with the step-11 identity of open.ts. Coverage of ibe.ts and
tlock.ts is 100 %, now a threshold for tlock.ts too. Step 6 of the plan
is recorded as done: the canonicality amendment is in spec-v0.8.2.
npm run verify is green: 2,567 tests. The site does not change.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
open(dkc, opts) now takes a Uint8Array or a Blob, such as a File.
- Of a Blob it reads only the prefix that steps 1 to 8 need.
inspectedLength and readCapsule move from src/lib/inspector/load.ts to
src/lib/dkc/prefix.ts, and the page imports them from the library.
- The .dkk capsule_digest is computed over the Blob's stream with the
new src/lib/dkc/digest.ts, an incremental SHA-256 on @noble/hashes,
since Web Crypto hashes whole buffers only. digest.ts joins the noble
allowlist of the guards.
- PAYLOAD_AGE is decrypted in streaming.
The plaintext goes to memory, as before, or to opts.output, a
WritableStream. The output is written as age authenticates each chunk,
closed only after step 18, and aborted after any failure at any step,
even before step 17 (spec §56). A failure of the output is ERR_INTEGRITY
with its text, as Go keeps the error of the writer of the plaintext.
Tests:
- the fixtures from Blobs, to memory and to an output;
- a truncated two-chunk payload whose first chunk reached the output
before the abort;
- early failures that never write;
- write and close failures, and an abort that fails;
- a .dkk without capsule_digest;
- the whole mutation corpus again as Blobs into an output, aborted in
every case;
- digest.ts against Web Crypto.
Coverage of digest.ts is 100 % and a threshold.
Checked in the browser (dev server, real OPFS). time_only.dkc, two
STREAM chunks, opened from a Blob into FileSystemFileHandle.createWritable
gives 78,000 bytes with the SHA-256 of its sidecar. The same file
truncated fails at step 17, and the OPFS file keeps its previous
content. The quota check, the temporary file and the download belong to
the page, in step 8.
npm run verify is green: 2,560 tests. The site does not change.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
src/lib/dkc/open.ts runs steps 9 to 18 of spec §63 on top of the steps
1 to 8 of inspectWith. It follows capsule.Open of the Go reference, with
its checks, codes and texts:
- step 9: the access credentials (the .dkk as an object, then its
capsule_id and capsule_digest), then the release, never before the
round time. Any failure of the source is ERR_RELEASE_UNAVAILABLE
alone, keeping its text and its cause (correction 6);
- step 10: verifyRelease;
- steps 11 to 13: OUTER_TIME_AGE, the structure against access_policy
and INNER_ACCESS_AGE;
- steps 14 to 18: CONTROL_CBOR, header_binding, I_PAYLOAD, PAYLOAD_AGE
and the commit.
The three age files open with the Decrypter of age-encryption and
identities that apply the rules of Go's agewrap: the tlock identity on
ibe.ts, and the access and payload identities on x25519.ts. A failure of
age that no identity reports is ERR_INTEGRITY with the fixed reason of
its phase, header or STREAM, never the text of age-encryption. The
plaintext is decrypted in memory and returned only after step 18.
Streaming to OPFS is step 5b.
src/lib/dkc/x25519.ts opens one age X25519 stanza at a time, in the
order of age's X25519Identity. Step 13 must try every identity on every
stanza (spec §36), and age-encryption's Decrypter stops at the first.
Its primitives are the ones age-encryption uses: X25519 and HKDF from
noble curves and hashes, and ChaCha20-Poly1305 from @noble/ciphers
2.4.0. The author approved declaring that package as a direct
dependency on 2026-09-28; it is the copy already installed and bundled.
The guards now allow ciphers, and x25519.ts in the noble allowlist.
src/lib/dkc/bech32.ts ports age's internal/bech32, with its MIT notice,
to read AGE-SECRET-KEY-1 identities.
Tests:
- vectors.test.ts runs all 65 cases of the mutation corpus through open.
Each gives the code and the step of Go, and no case that fails without
the network requests a release. This includes the 34 cases of steps 9
to 18 that were skipped, so the suite no longer skips any test.
- open.test.ts:
- the five official fixtures open to their plaintext, with each
credential, with the checks and details of the reference;
- the unusable noncritical extensions are reported;
- the source failures and the clock;
- age failures by phase;
- CONTROL_CBOR that does not decode, and a low-order share in
INNER_ACCESS_AGE, through an OUTER_TIME_AGE resealed with the FK_TIME
of the Go vectors;
- the texts of the identities.
- x25519.test.ts checks against age-encryption both ways and against the
Go-written stanzas of the fixtures, and covers every low-order share.
- bech32.test.ts has the vectors of the reference.
x25519.ts and bech32.ts are at 100 % coverage, now thresholds. open.ts
is at 100 % of lines; the one branch left is the one for an error that
is not a DateKeysError.
index.ts does not re-export the opening yet. The page imports index.ts,
and re-exporting would pull noble into /inspect (58.7 to 84.9 KB gzip)
even unused; step 8 will load it on demand. The site does not change.
npm run verify is green: 2,490 tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- src/lib/dkc/version.ts exports VERSION (0.1.0-dev, which becomes
0.1.0 once phase 2 adds the opening of capsules) and SPEC_VERSION
(0.8.2, the tag spec-v0.8.2 of datekeys-go), from index.ts too.
- package.json and its lockfile move to 0.1.0-dev. version.test.ts ties
VERSION to both and checks it is semantic versioning. It also ties
SPEC_VERSION to the spec field of the shared vectors and fixtures.
testing/vectors.ts now takes SPEC_VERSION from version.ts, so every
vector file is checked against the version the library declares.
- The footer of the page shows both, instead of a fixed 0.8.2.
- README.md gains a "Versiones" section: the three versions (format,
specification, library) and what 0.1.0-dev covers. CHANGELOG.md is
new.
The Go reference gained datekeys.SpecVersion, datekeys.Version() and
`datekeys version` in 5b342d3.
npm run verify is green: 2,406 tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
src/lib/dkc/release.ts is provider.Verify of the Go reference (spec §17,
§51, §63 step 10), in its order and with its texts:
- the round within the profile (ERR_DATEKEY_INVALID);
- the round of the release before the signature (ERR_ROUND_MISMATCH);
- the length of the signature;
- the pinned public key (ERR_UNKNOWN_PROFILE when it does not decode;
the point at infinity fails the verification, as with kyber);
- the signature (ERR_RELEASE_INVALID): the canonical encoding of a point
of G1 other than the point at infinity, gated by bls12381.ts, that
verifies on @noble/curves 2.4.0 as the BLS signature of
SHA-256(uint64be(round)), hashed with the RFC 9380 DST of G1.
Nothing noble throws becomes anything but ERR_RELEASE_INVALID, and no
text of noble is copied. Only Quicknet's scheme is verified (plan
decision 3): another scheme fails with ERR_UNKNOWN_PROFILE after the
round checks. It also defines ReleaseSource, with the contract for
network sources and correction 6, and suppliedRelease, the release that
the caller hands over (unverified, so step 10 checks it). index.ts does
not re-export it yet.
release.test.ts:
- replays TestVerifyRejects of the reference, with exact texts;
- accepts the published releases of rounds 1000, 1001, 2000 and 1004
(the last one recovered from the x + p encoding of the corpus, which
shows that encoding is the published signature re-encoded);
- shows the DST of G2, the one bls-unchained-on-g1 uses, fails;
- gives the code of each of the 7 corpus cases that fail at step 10,
with the round that inspect reads from the capsule.
ibe.failure.test.ts becomes noble.failure.test.ts and also fails noble's
BLS verification. Coverage of release.ts is 100 % and is now a
threshold. The site does not change.
npm run verify is green: 2,404 tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
src/lib/dkc/ibe.ts is DecryptCCAonG2 of drand/kyber encrypt/ibe, the
decryption of tlock.TimeUnlock for Quicknet, on @noble/curves 2.4.0
(plan of phase 2, section 4). It adds nothing that kyber would reject:
- the signature and U pass the canonical-encoding gate of bls12381.ts,
which rejects the point at infinity too;
- H2 hashes GT in the order of kilic, never with noble's Fp12.toBytes;
- H3 and H4 follow kyber, including the rejection sampling of r, and
r = 0 never proves;
- roundIdentity is drand's DigestBeacon;
- the stanza body is exactly U || V || W, 128 bytes, as in tlock.
Errors are IbeError with a fixed reason (length, encoding, identity,
proof) and message: none carries sigma, the message, r or input bytes.
Anything noble throws past the gate is a proof failure. sigma and the
hashes derived from it are wiped on every path. The file keeps the MIT
notice of tlock-js, whose structure it follows. index.ts does not
re-export it yet; the opening of step 5 will use it.
scripts/ibe-go-vectors.go writes src/lib/dkc/testing/ibe-vectors.json
with kyber, tlock and age:
- the GT of e(G1, G2) and of its square, with H2;
- H3, including inputs accepted at the second and third iteration, and
H4;
- round identities;
- for the tlock stanza of every official fixture, the pairing, sigma, r
and the file key. tlock.TimeUnlock unwraps that file key, and age
opens OUTER_TIME_AGE with it;
- messages of 0, 1, 16 and 32 bytes encrypted by EncryptCCAonG2;
- kyber's verdict on eleven edited copies of the time_only stanza.
It restates the unexported H2, H3 and H4 and checks them on every
fixture against tlock and U = r·G2.
ibe.test.ts replays every vector and opens OUTER_TIME_AGE of each
fixture through age-encryption with a custom Identity: the header MAC
and STREAM verify, and a time_only fixture yields its control_cbor. It
also gates all 157 BLS edge encodings as the Go reference decodes them
and checks the fixed error texts. ibe.failure.test.ts mocks a noble
failure. Coverage of ibe.ts is 100 % and is now a threshold. The site
does not change.
npm run verify is green: 2,397 tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- age-encryption 0.3.1, @noble/curves 2.4.0 (moved from dev) and
@noble/hashes 2.4.0 become exact runtime dependencies (plan section 3,
decision 5). The lockfile gains six packages: age-encryption,
@noble/ciphers 2.4.0, @scure/base 2.4.0, @noble/post-quantum 0.5.4 and
its own @noble/curves and @noble/hashes 2.0.1. No file of src/ imports
them yet, so the site does not change.
- src/lib/dependencies.test.ts guards them. package.json declares exactly
these three, pinned. The lockfile has no tlock-js, drand-client or noble
1.x, and no noble 2.x copy other than 2.4.0 at the root and 2.0.1 under
@noble/post-quantum. No file of src/ imports tlock-js or drand-client.
Only ibe.ts, release.ts and the tests name @noble/, always subpaths of
@noble/curves or @noble/hashes that resolve to the root 2.4.0 copy.
Every check also runs on bad inputs. It replaces the "only tests import
@noble/curves" test of bls12381.contrast.test.ts.
- vite.config.ts records the modules of each client chunk in
.svelte-kit/output/client-modules.json. check-build.mjs fails if the
bundle holds tlock-js, drand-client or @babel/*, or a nested copy
other than noble under @noble/post-quantum. It also reports the
JavaScript each page loads: /inspect today loads 157 KB, 58.7 KB gzip.
- Measured with a probe build (Vite 8, minified, gzip 9): the Decrypter
is 48 KB gzip, with the Encrypter 56 KB, noble BLS12-381 plus SHA-256
28 KB, and all of them 73 KB. age-encryption imports its hybrid ML-KEM
recipients statically, so post-quantum and its nested noble copy are
about 99 KB of the Decrypter's 212 KB of rendered code.
- npm audit --omit=dev: no vulnerabilities. The full audit finds two low
ones in the tooling: cookie < 0.7.0 through @sveltejs/kit 2.70.3,
which is the latest version and affects only SvelteKit's server.
npm run verify is green: 2,384 tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The author approved the v0.8.2 text on 2026-09-28. datekeys-go main was
fast-forwarded to 9ac9cd9 after scripts/check.sh 60s passed, and tagged
spec-v0.8.2; App testdata follows it (71ab8fb). Phase 2 is next.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The final commit of spec v0.8.2, tagged spec-v0.8.2 after the author's
approval. Only testdata/README.md changes: it says that the mutation
corpus registers its extensions in both arrays of every object, like a
Go Registry without extension.Placement. No fixture or vector changes,
and no Go error text of steps 1 to 8 changes: the second-round
corrections touch step 9 and the drand client, which App does not
implement yet. npm run verify is green: 2,379 tests.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
datekeys-go v0.8.2 is at 9ac9cd9 with the nine retouches of the second
round of the formal review (spec §76, corrections 4 to 6), the full
gate green and the WIP branch deleted. Next: the author's approval of
the text, then check.sh 60s, the fast-forward of main, the tag
spec-v0.8.2 and the App sync. Also records the two unreachable
govulncheck advisories (grpc GO-2026-6443, x/crypto/openpgp
GO-2026-5932).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
State of both repositories, the interrupted second-round fixes on
datekeys-go wip/review2-fixes, the ordered list of what remains (close
v0.8.2, re-sync App, phase 2, author-only items) and the project rules.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
testdata is synced from datekeys-go c57ed48, which adds
vectors/tlock_ibe.json, the frozen H2 of the tlock IBE (spec §63 step
11). Until phase 2 brings the IBE, the harness recomputes it with the
audited @noble/curves 2.4.0 (development only): the points are canonical
for bls12381.ts, noble's pairing serialized in the order of kilic is the
vector's GT, its H2 matches, and noble's own Fp12.toBytes order gives
another hash.
The extension registry gains the optional registeredIn: a known
extension out of the objects and arrays of its registration counts as
unknown there (spec §54, §72), as Go's extension.Placement; step 4 of
inspect checks PUBLIC_HEADER with it. A test copies a CONTROL_CBOR-only
critical extension into PUBLIC_HEADER and fails if the check is removed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
testdata is synced from datekeys-go f6f2e9f: mutations.json has 65
cases, the ten new §64 ones at steps 10 and 11 (phase 2, skipped and
counted: 31 run, 34 skipped).
The reference no longer copies library error text into errors, so the
TypeScript uses its fixed texts too: every unreadable age header is
"agewrap: not an age v1 header: malformed, truncated or beyond the
parser limits", with the parser's reason in the error's cause, which the
tests still compare with age's own texts; the profile messages for an
unknown drand scheme and a non-canonical public key follow Go. Against
Go at f6f2e9f, 407,196 differential inputs agree on verdict, code, step,
error text, check details and the full inspect -json output.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
dev