1 /* crypto/ec/ec_cvt.c */
3 * Originally written by Bodo Moeller for the OpenSSL project.
5 /* ====================================================================
6 * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
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51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
58 /* ====================================================================
59 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
61 * Portions of the attached software ("Contribution") are developed by
62 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
64 * The Contribution is licensed pursuant to the OpenSSL open source
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73 * 1) for code that a licensee deletes from the Contribution;
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75 * 3) for infringements caused by:
76 * i) the modification of the Contribution or
77 * ii) the combination of the Contribution with other software or
78 * devices where such combination causes the infringement.
80 * The elliptic curve binary polynomial software is originally written by
81 * Sheueling Chang Shantz and Douglas Stebila of Sun Microsystems Laboratories.
88 EC_GROUP *EC_GROUP_new_curve_GFp(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
90 const EC_METHOD *meth;
93 /* Finally, this will use EC_GFp_nist_method if 'p' is a special
94 * prime with optimized modular arithmetics (for NIST curves)
96 meth = EC_GFp_mont_method();
98 ret = EC_GROUP_new(meth);
102 if (!EC_GROUP_set_curve_GFp(ret, p, a, b, ctx))
104 EC_GROUP_clear_free(ret);
111 EC_GROUP *EC_GROUP_new_curve_GF2m(const BIGNUM *p, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
113 const EC_METHOD *meth;
116 meth = EC_GF2m_simple_method();
118 ret = EC_GROUP_new(meth);
122 if (!EC_GROUP_set_curve_GF2m(ret, p, a, b, ctx))
124 EC_GROUP_clear_free(ret);