[Cado-nfs-discuss] Question about DLP

Xs. X. zwwynyw at gmail.com
Thu Nov 1 13:53:33 CET 2018


Hello everyone,

I try to execute the command in README.dlp, and get the result:

p = 191907783019725260605646959711
ell = 101538509534246169632617439
log2 = 68461024670405903745830817
log3 = 66476914657882357884710743
target = 92800609832959449330691138186
log(target) = 98216820520868086884824331

According to README, I should divide log(target) by log2 to get
log_2(target). And I get X = log(target)/log2 mod ell
= 59859158352878681776097204. But 2^X is not equal to target mod p. What
should I do to get the logarithm of a specific base?

Thanks a lot!

Chen Yongyan
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