/[gzz]/manuscripts/Sigs/poss.py
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revision 1.20 by benja, Mon May 19 17:17:22 2003 UTC revision 1.21 by benja, Mon May 19 17:26:12 2003 UTC
# Line 34  def bleichenbacher_maurer(h, n): Line 34  def bleichenbacher_maurer(h, n):
34  def reyzin(h,b,t,k):  def reyzin(h,b,t,k):
35      return 1, b, k*h, t*h, h, t, 1, 1+k      return 1, b, k*h, t*h, h, t, 1, 1+k
36  def reyzin_merkled(h, b, t, k):  def reyzin_merkled(h, b, t, k):
37      return 1, b, k*ceil(log2(t)), h, h, 2t-1, 1, 1 + k + k*ceil(log2(t))      return 1, b, k*ceil(log2(t))*h, h, h, 2*t-1, 1, 1 + k + k*ceil(log2(t))
38    
39  def times(j, S):  def times(j, S):
40      return (j*S[0], S[1], S[2], j*S[3], S[4], j*S[5], S[6], S[7])      return (j*S[0], S[1], S[2], j*S[3], S[4], j*S[5], S[6], S[7])

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