+ if (ret->meth->init != NULL && ret->meth->init(ret) == 0) {
+ EC_KEY_free(ret);
+ return NULL;
+ }
+ return ret;
+}
+
+int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
+ const EC_KEY *eckey,
+ void *(*KDF) (const void *in, size_t inlen, void *out,
+ size_t *outlen))
+{
+ if (eckey->meth->compute_key != NULL)
+ return eckey->meth->compute_key(out, outlen, pub_key, eckey, KDF);
+ ECerr(EC_F_ECDH_COMPUTE_KEY, EC_R_OPERATION_NOT_SUPPORTED);
+ return 0;
+}
+
+EC_KEY_METHOD *EC_KEY_METHOD_new(const EC_KEY_METHOD *meth)
+{
+ EC_KEY_METHOD *ret = OPENSSL_zalloc(sizeof(*meth));
+
+ if (ret == NULL)
+ return NULL;
+ if (meth != NULL)
+ *ret = *meth;
+ ret->flags |= EC_KEY_METHOD_DYNAMIC;
+ return ret;
+}
+
+void EC_KEY_METHOD_free(EC_KEY_METHOD *meth)
+{
+ if (meth->flags & EC_KEY_METHOD_DYNAMIC)
+ OPENSSL_free(meth);
+}
+
+void EC_KEY_METHOD_set_init(EC_KEY_METHOD *meth,
+ int (*init)(EC_KEY *key),
+ void (*finish)(EC_KEY *key),
+ int (*copy)(EC_KEY *dest, const EC_KEY *src),
+ int (*set_group)(EC_KEY *key, const EC_GROUP *grp),
+ int (*set_private)(EC_KEY *key,
+ const BIGNUM *priv_key),
+ int (*set_public)(EC_KEY *key,
+ const EC_POINT *pub_key))
+{
+ meth->init = init;
+ meth->finish = finish;
+ meth->copy = copy;
+ meth->set_group = set_group;
+ meth->set_private = set_private;
+ meth->set_public = set_public;
+}
+
+void EC_KEY_METHOD_set_keygen(EC_KEY_METHOD *meth,
+ int (*keygen)(EC_KEY *key))
+{
+ meth->keygen = keygen;
+}
+
+void EC_KEY_METHOD_set_compute_key(EC_KEY_METHOD *meth,
+ int (*ckey)(void *out,
+ size_t outlen,
+ const EC_POINT *pub_key,
+ const EC_KEY *ecdh,
+ void *(*KDF) (const void *in,
+ size_t inlen,
+ void *out,
+ size_t *outlen)))
+{
+ meth->compute_key = ckey;
+}
+
+void EC_KEY_METHOD_set_sign(EC_KEY_METHOD *meth,
+ int (*sign)(int type, const unsigned char *dgst,
+ int dlen, unsigned char *sig,
+ unsigned int *siglen,
+ const BIGNUM *kinv, const BIGNUM *r,
+ EC_KEY *eckey),
+ int (*sign_setup)(EC_KEY *eckey, BN_CTX *ctx_in,
+ BIGNUM **kinvp, BIGNUM **rp),
+ ECDSA_SIG *(*sign_sig)(const unsigned char *dgst,
+ int dgst_len,
+ const BIGNUM *in_kinv,
+ const BIGNUM *in_r,
+ EC_KEY *eckey))
+{
+ meth->sign = sign;
+ meth->sign_setup = sign_setup;
+ meth->sign_sig = sign_sig;
+}
+
+void EC_KEY_METHOD_set_verify(EC_KEY_METHOD *meth,
+ int (*verify)(int type, const unsigned
+ char *dgst, int dgst_len,
+ const unsigned char *sigbuf,
+ int sig_len, EC_KEY *eckey),
+ int (*verify_sig)(const unsigned char *dgst,
+ int dgst_len,
+ const ECDSA_SIG *sig,
+ EC_KEY *eckey))
+{
+ meth->verify = verify;
+ meth->verify_sig = verify_sig;
+}
+
+void EC_KEY_METHOD_get_init(EC_KEY_METHOD *meth,
+ int (**pinit)(EC_KEY *key),
+ void (**pfinish)(EC_KEY *key),
+ int (**pcopy)(EC_KEY *dest, const EC_KEY *src),
+ int (**pset_group)(EC_KEY *key,
+ const EC_GROUP *grp),
+ int (**pset_private)(EC_KEY *key,
+ const BIGNUM *priv_key),
+ int (**pset_public)(EC_KEY *key,
+ const EC_POINT *pub_key))
+{
+ if (pinit != NULL)
+ *pinit = meth->init;
+ if (pfinish != NULL)
+ *pfinish = meth->finish;
+ if (pcopy != NULL)
+ *pcopy = meth->copy;
+ if (pset_group != NULL)
+ *pset_group = meth->set_group;
+ if (pset_private != NULL)
+ *pset_private = meth->set_private;
+ if (pset_public != NULL)
+ *pset_public = meth->set_public;
+}
+
+void EC_KEY_METHOD_get_keygen(EC_KEY_METHOD *meth,
+ int (**pkeygen)(EC_KEY *key))
+{
+ if (pkeygen != NULL)
+ *pkeygen = meth->keygen;
+}
+
+void EC_KEY_METHOD_get_compute_key(EC_KEY_METHOD *meth,
+ int (**pck)(void *out,
+ size_t outlen,
+ const EC_POINT *pub_key,
+ const EC_KEY *ecdh,
+ void *(*KDF) (const void *in,
+ size_t inlen,
+ void *out,
+ size_t *outlen)))
+{
+ if (pck != NULL)
+ *pck = meth->compute_key;
+}
+
+void EC_KEY_METHOD_get_sign(EC_KEY_METHOD *meth,
+ int (**psign)(int type, const unsigned char *dgst,
+ int dlen, unsigned char *sig,
+ unsigned int *siglen,
+ const BIGNUM *kinv, const BIGNUM *r,
+ EC_KEY *eckey),
+ int (**psign_setup)(EC_KEY *eckey, BN_CTX *ctx_in,
+ BIGNUM **kinvp, BIGNUM **rp),
+ ECDSA_SIG *(**psign_sig)(const unsigned char *dgst,
+ int dgst_len,
+ const BIGNUM *in_kinv,
+ const BIGNUM *in_r,
+ EC_KEY *eckey))
+{
+ if (psign != NULL)
+ *psign = meth->sign;
+ if (psign_setup != NULL)
+ *psign_setup = meth->sign_setup;
+ if (psign_sig != NULL)
+ *psign_sig = meth->sign_sig;
+}
+
+void EC_KEY_METHOD_get_verify(EC_KEY_METHOD *meth,
+ int (**pverify)(int type, const unsigned
+ char *dgst, int dgst_len,
+ const unsigned char *sigbuf,
+ int sig_len, EC_KEY *eckey),
+ int (**pverify_sig)(const unsigned char *dgst,
+ int dgst_len,
+ const ECDSA_SIG *sig,
+ EC_KEY *eckey))
+{
+ if (pverify != NULL)
+ *pverify = meth->verify;
+ if (pverify_sig != NULL)
+ *pverify_sig = meth->verify_sig;