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annotate design.txt @ 12:a38a2a1036c3

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Add import subcommand.
author David Barts <n5jrn@me.com>
date Sun, 22 Jan 2023 09:22:53 -0800
parents c69665ff37d0
children
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1 * First, decide that for some reason the standard pass password manager is
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2 unacceptable. One reason may be the risk of compromise or bad commits
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3 (by a hostile actor). Another may be matadata leakage: pass stores the
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4 name of the (username, password) pair in plaintext.
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5 + Regarding the latter, my ccrypt-based solution is better than that, and
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6 it immediately struck me as a bad point. Was already thinking about what
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7 I would do, and it involved sqlite with all fields except for time stamps
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8 encrypted.
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9
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10 * Using sqlite (sqlite3) and one of {Kotlin, Golang, Swift} (in rough order
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11 of likelihood) would probably be the way to go.
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12 * Use a table of the following form to store the passwords (call it passwords):
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13 id integer not null primary key
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14 name blob
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15 username blob
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16 password blob
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17 notes blob (can be null)
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18 created integer
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19 modified integer
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20 accessed (read) integer
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21 + id will be the low 64 bits of the MD5 hash of the encrypted name
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22 case-folded to lowercase (encrypt with a zero IV, don't prepend).
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23 + all blobs will be AES-encrypted with prepended IV, a'la EncryptedProperties.
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24 + timestamps are seconds or milliseconds since the epoch
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25 * Use four other tables to store configuration parameters (as needed)
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26 integers, reals, strings, blobs.
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27 + Each will have an implicit rowid field, a string name field, and a
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28 value field of type integer, real, text, or blob as appropriate.
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29 + Probably only put those in the schema on an as-needed basis, i.e.
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30 a reals table will only exist if we have configuration parameters
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31 * Four major subcommands: create, read, update, delete.
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32 + Error to create a password whose name (case insensitive) already exists.
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33 + Error to read, update, or delete one whose name does not exist.
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34 + Read should support a --like option to do inexact matching. If one
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35 match, act much like read w/o --like. If multiple matches, just list
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36 the names.
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37 + Read should also support a --clip option that deposits the password
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38 into the clipboard without printing it.
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39 + Read should also support a --verbose or --long option that causes a
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40 stanza-like, key: value dump of the full record. If --clip is used
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41 along with --verbose, password prints as "(in clipboard)"
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42
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43 * Use same password everywhere.
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44 + Use a dummy config param to ensure correct password (attempt decrypt of
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45 it first, write it base64'ed).
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46 + Could theoretically use different p/w's for different rows, but causes
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47 headaches matching names later, so avoid.
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48
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49 * Misc:
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50 + Include a password generator along the lines of genpass.
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51 - This should be as a --generate option to the create and update
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52 subcommands.
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53 - --generate allows four other options: --length, --symbols, --clip,
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54 --verbose.
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55 - Default length should be 12 (default no symbols).
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56 - If --clip supplied, copy new password to clipboard.
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57 - If --verbose supplied, print new password.
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58 - Default to be silent and not put password in clipboard, just change
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59 in database.
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60 + Command-line only, no GUI.
11
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61 + JSON for import subcommand (if we implement):
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62 https://javaee.github.io/jsonp/getting-started.html