scripts/recovery opens a time_and_key capsule with the words of a key of
words (-words FILE), as the annex says in 79.7: the normalization without
tables for the text of the DateKeys lists (printable ASCII, the ASCII
spaces, á é í ó ú ü ñ and their capitals, and the marks U+0300 to U+036F),
and for any other text the full one, NFD, without the marks, simple lower
case and the spaces of 38.1, from UnicodeData.txt of Unicode 18.0.0
(-unicodedata FILE), checked by its SHA-256; then PBKDF2-HMAC-SHA256 of the
standard library. Its tests check both normalizations against every case
of wordkey.json and the two vectors of the annex.
Two fixtures of v0.16: format3_time_and_key_words, opened with the text of
the second vector of the annex, recorded in words_text with the identity it
gives; and format3_full_chunk, whose BODY and P are 65536 bytes, so that
PAYLOAD_AGE ends in a full STREAM chunk (79.5). recovery_check.sh opens
both. wordkey.json gains the text of the annex, also with its marks apart.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
