hashsum.c: Document `--progress' in the `--help' display.

[u/mdw/catacomb] / mkpgroups

#! /usr/bin/python

import catacomb as C
import mLib as M
from sys import stdin

kf = C.KeyFile('pgroups.kr', C.KOPEN_WRITE)

for line in stdin:
  line = line.strip()
  if line == '' or (line.startswith('#') and not line.startswith('#:')):
    continue
  F = line.split()
  if F[0] == 'group':
    name = F[1]
    if not name.startswith('catacomb'):
      continue
    def snarf(what):
      F = stdin.next().split()
      assert F[0] == what
      return F[1]
    p = C.MP(snarf('p'))
    q = C.MP(snarf('q'))
    g = C.MP(snarf('g'))
    ff = []
    while True:
      F = stdin.next().split()
      if not F or F[0] != '#:factor':
	break
      ff.append(C.MP(F[1]))
    seed = C.rmd160().hash(name).done()
    k = kf.newkey(C.ReadBuffer(seed).getu32(), 'dh-param')
    k.tag = name
    k.data = C.KeyDataStructured({
      'p': C.KeyDataMP(p, 'shared'),
      'q': C.KeyDataMP(q, 'shared'),
      'g': C.KeyDataMP(g, 'shared')
    })
    k.attr['factor'] = ', '.join([f.tostring() for f in ff])
    k.attr['genseed'] = M.base64_encode(seed)
    k.attr['seedalg'] = 'rmd160-mgf'
kf.save()