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Add new APIs EC_curve_nist2nid and EC_curve_nid2nist which convert

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between NIDs and the more common NIST names such as "P-256". Enhance
ecparam utility and ECC method to recognise the NIST names for curves.
(backport from HEAD)
This commit is contained in:
Dr. Stephen Henson
2012-04-06 17:35:01 +00:00
parent 37b16c84bb
commit a068a1d0e3
6 changed files with 71 additions and 2 deletions
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10
crypto/ec/eck_prn.c
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@@ -177,6 +177,7 @@ int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off)
{
/* the curve parameter are given by an asn1 OID */
int nid;
const char *nname;
if (!BIO_indent(bp, off, 128))
goto err;
@@ -184,11 +185,18 @@ int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off)
nid = EC_GROUP_get_curve_name(x);
if (nid == 0)
goto err;
if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
goto err;
if (BIO_printf(bp, "\n") <= 0)
goto err;
nname = EC_curve_nid2nist(nid);
if (nname)
{
if (!BIO_indent(bp, off, 128))
goto err;
if (BIO_printf(bp, "NIST CURVE: %s\n", nname) <= 0)
goto err;
}
}
else
{