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scd: Fix regression for generating RSA keys on card.

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* scd/app-openpgp.c (do_genkey): Strip leading zeros for fingerprint
computation.

--

This bug is difficult to reproduce because the probability is 1/256,
and key generation takes long time.  The regression was introduced
when we add the support for ECC.

GnuPG-bug-id: 2150
This commit is contained in:
NIIBE Yutaka 2015-12-14 14:37:18 +09:00
parent 4d3395ef1f
commit d40975cbe8
1 changed files with 5 additions and 0 deletions
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5
scd/app-openpgp.c
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@ -3623,6 +3623,11 @@ do_genkey (app_t app, ctrl_t ctrl, const char *keynostr, unsigned int flags,
send_status_info (ctrl, "KEY-CREATED-AT",
numbuf, (size_t)strlen(numbuf), NULL, 0);
for (; mlen && !*m; mlen--, m++) /* strip leading zeroes */
;
for (; elen && !*e; elen--, e++) /* strip leading zeroes */
;
rc = store_fpr (app, keyno, (u32)created_at, fprbuf, PUBKEY_ALGO_RSA,
m, mlen, e, elen);
if (rc)