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add worst case estimate to ecc_sign_size()

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toddouska
2013-10-30 13:33:23 -07:00
parent 3d19604bfb
commit 12b074fbe9
2 changed files with 4 additions and 3 deletions
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5
ctaocrypt/src/ecc.c
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@@ -2099,14 +2099,15 @@ int ecc_size(ecc_key* key)
}
/* signature size in octets */
/* worst case estimate, check actual return from ecc_sign_hash for actual value
of signature size in octets */
int ecc_sig_size(ecc_key* key)
{
int sz = ecc_size(key);
if (sz < 0)
return sz;
return sz * 2 + SIG_HEADER_SZ;
return sz * 2 + SIG_HEADER_SZ + 4; /* (4) worst case estimate */
}