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RT 4393: Call EC_GROUP_order_bits in priv2opt.

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The private key is a scalar and should be sized by the order, not the
degree. See RFC 5915.

Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Emilia Käsper <emilia@openssl.org>
This commit is contained in:
David Benjamin
2016-03-07 09:57:58 -05:00
committed by Emilia Kasper
parent eb47aae5d3
commit fe56d8e8a3
1 changed files with 1 additions and 1 deletions
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2
crypto/ec/ec_key.c
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@@ -607,7 +607,7 @@ size_t ec_key_simple_priv2oct(const EC_KEY *eckey,
{ {
size_t buf_len; size_t buf_len;
buf_len = (EC_GROUP_get_degree(eckey->group) + 7) / 8; buf_len = (EC_GROUP_order_bits(eckey->group) + 7) / 8;
if (eckey->priv_key == NULL) if (eckey->priv_key == NULL)
return 0; return 0;
if (buf == NULL) if (buf == NULL)