diff options
Diffstat (limited to 'crypto/ec/ec_lcl.h')
| -rw-r--r-- | crypto/ec/ec_lcl.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/crypto/ec/ec_lcl.h b/crypto/ec/ec_lcl.h index d79ed1e4d92df..969fd147ef936 100644 --- a/crypto/ec/ec_lcl.h +++ b/crypto/ec/ec_lcl.h @@ -212,6 +212,13 @@ struct ec_group_st { BIGNUM order, cofactor; int curve_name; /* optional NID for named curve */ int asn1_flag; /* flag to control the asn1 encoding */ + /* + * Kludge: upper bit of ans1_flag is used to denote structure + * version. Is set, then last field is present. This is done + * for interoperation with FIPS code. + */ +#define EC_GROUP_ASN1_FLAG_MASK 0x7fffffff +#define EC_GROUP_VERSION(p) (p->asn1_flag&~EC_GROUP_ASN1_FLAG_MASK) point_conversion_form_t asn1_form; unsigned char *seed; /* optional seed for parameters (appears in * ASN1) */ @@ -252,6 +259,7 @@ struct ec_group_st { /* method-specific */ int (*field_mod_func) (BIGNUM *, const BIGNUM *, const BIGNUM *, BN_CTX *); + BN_MONT_CTX *mont_data; /* data for ECDSA inverse */ } /* EC_GROUP */ ; struct ec_key_st { @@ -541,3 +549,20 @@ void ec_GFp_nistp_points_make_affine_internal(size_t num, void *point_array, void ec_GFp_nistp_recode_scalar_bits(unsigned char *sign, unsigned char *digit, unsigned char in); #endif +int ec_precompute_mont_data(EC_GROUP *); + +#ifdef ECP_NISTZ256_ASM +/** Returns GFp methods using montgomery multiplication, with x86-64 optimized + * P256. See http://eprint.iacr.org/2013/816. + * \return EC_METHOD object + */ +const EC_METHOD *EC_GFp_nistz256_method(void); +#endif + +#ifdef OPENSSL_FIPS +EC_GROUP *FIPS_ec_group_new_curve_gfp(const BIGNUM *p, const BIGNUM *a, + const BIGNUM *b, BN_CTX *ctx); +EC_GROUP *FIPS_ec_group_new_curve_gf2m(const BIGNUM *p, const BIGNUM *a, + const BIGNUM *b, BN_CTX *ctx); +EC_GROUP *FIPS_ec_group_new_by_curve_name(int nid); +#endif |