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trezor-firmware/tools
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Jochen Hoenicke e432d772c7 Program to precompute the table for scalar_mult 
This program pre-computes the table and prints then in the form
that can be included in secp256k1.c
2015-04-11 13:12:03 +02:00
..
.gitignore Program to precompute the table for scalar_mult 2015-04-11 13:12:03 +02:00
Makefile Program to precompute the table for scalar_mult 2015-04-11 13:12:03 +02:00
mksecptable.c Program to precompute the table for scalar_mult 2015-04-11 13:12:03 +02:00
README.md Program to precompute the table for scalar_mult 2015-04-11 13:12:03 +02:00
xpubaddrgen.c add break condition to xpubaddrgen 2015-01-11 02:46:45 +01:00

README.md

trezor-crypto tools

Set of small utilities using the trezor-crypto library.

xpubaddrgen

xpubaddrgen reads job specification from stdin in format:

<jobid> <xpub> <change> <from> <to>

and prints the results to stdout in format:

<jobid> <index> <address>

Example input:

23 xpub6BcjTvRCYD4VvFQ8whztSXhbNyhS56eTd5P3g9Zvd3zPEeUeL5CUqBYX8NSd1b6Thitr8bZcSnesmXZH7KerMcc4tUkenBShYCtQ1L8ebVe 0 0 5
42 xpub6AT2YrLinU4Be5UWUxMaUz3zTA99CSGvXt1jt2Lgym8PqXbTzmpQ8MHjoLnx8YJiMMUP5iEfR97YQVmgF6B2tAhbCZrXqn65ur526NkZ6ey 1 1000 1005

Example output:

23 0 14vb5Cws75p2i5rmSiF5CKMyezUX4hxSb9
23 1 1Lf4ciA36dsi1niF6smVcpCiHcpj2skaPq
23 2 1LraByp7gQAipvHnFS1gTSzixBtYaVyQGp
23 3 1Hy6n56qZj1EefLVfDAeEpmveNteY9jpiG
23 4 183Nn4mrUjPizM3xu8C6SrmViaWrk8YyRS
42 1000 12eAFGAqGUtszc9R7euRqk7DUcQNXvQZSg
42 1001 1BrLbFCD3MNYedJaz92U9iqy9ukHrtQ1A6
42 1002 1Jhv33bJy229ThM7HKxUa92cMK5gi7DyPC
42 1003 13LxbTjQPByisj4F4sZEivUBdnJwigzg6R
42 1004 1BWBpSWkPwcKxVr2WDyUqQbmvk5SGihcx9

It will print <jobid> error when there was an error processing job jobid.

It will print error when it encountered a malformed line.

mksecptable

mksecptable computes the points of the form (2*j+1)*16^i*G and prints them in the format to be included in secp256k1.c. These points are used by the fast ECC multiplication.

It is only meant to be run if the scalar_mult algorithm changes.