+
+int EVP_PKEY_CTX_set_rsa_keygen_bits(EVP_PKEY_CTX *ctx, int bits)
+{
+ OSSL_PARAM params[2], *p = params;
+ size_t bits2 = bits;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.keymgmt.genctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN,
+ EVP_PKEY_CTRL_RSA_KEYGEN_BITS, bits, NULL);
+
+ *p++ = OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_RSA_BITS, &bits2);
+ *p++ = OSSL_PARAM_construct_end();
+
+ if (!EVP_PKEY_CTX_set_params(ctx, params))
+ return 0;
+
+ return 1;
+}
+
+static int evp_pkey_ctx_set_rsa_keygen_pubexp_intern(EVP_PKEY_CTX *ctx,
+ BIGNUM *pubexp,
+ int copy)
+{
+ OSSL_PARAM_BLD *tmpl;
+ OSSL_PARAM *params;
+ int ret;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.keymgmt.genctx == NULL) {
+ if (copy == 1)
+ pubexp = BN_dup(pubexp);
+ ret = EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN,
+ EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP, 0, pubexp);
+ if ((copy == 1) && (ret <= 0))
+ BN_free(pubexp);
+ return ret;
+ }
+
+ if ((tmpl = OSSL_PARAM_BLD_new()) == NULL)
+ return 0;
+ if (!OSSL_PARAM_BLD_push_BN(tmpl, OSSL_PKEY_PARAM_RSA_E, pubexp)
+ || (params = OSSL_PARAM_BLD_to_param(tmpl)) == NULL) {
+ OSSL_PARAM_BLD_free(tmpl);
+ return 0;
+ }
+ OSSL_PARAM_BLD_free(tmpl);
+
+ ret = EVP_PKEY_CTX_set_params(ctx, params);
+ OSSL_PARAM_BLD_free_params(params);
+
+ /*
+ * Satisfy memory semantics for pre-3.0 callers of
+ * EVP_PKEY_CTX_set_rsa_keygen_pubexp(): their expectation is that input
+ * pubexp BIGNUM becomes managed by the EVP_PKEY_CTX on success.
+ */
+ if ((copy == 0) && (ret > 0))
+ ctx->rsa_pubexp = pubexp;
+
+ return ret;
+}
+
+int EVP_PKEY_CTX_set_rsa_keygen_pubexp(EVP_PKEY_CTX *ctx, BIGNUM *pubexp)
+{
+ return evp_pkey_ctx_set_rsa_keygen_pubexp_intern(ctx, pubexp, 0);
+}
+
+int EVP_PKEY_CTX_set1_rsa_keygen_pubexp(EVP_PKEY_CTX *ctx, BIGNUM *pubexp)
+{
+ return evp_pkey_ctx_set_rsa_keygen_pubexp_intern(ctx, pubexp, 1);
+}
+
+int EVP_PKEY_CTX_set_rsa_keygen_primes(EVP_PKEY_CTX *ctx, int primes)
+{
+ OSSL_PARAM params[2], *p = params;
+ size_t primes2 = primes;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* If key type not RSA return error */
+ if (ctx->pmeth != NULL && ctx->pmeth->pkey_id != EVP_PKEY_RSA)
+ return -1;
+
+ /* TODO(3.0): Remove this eventually when no more legacy */
+ if (ctx->op.keymgmt.genctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN,
+ EVP_PKEY_CTRL_RSA_KEYGEN_PRIMES, primes,
+ NULL);
+
+ *p++ = OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_RSA_PRIMES, &primes2);
+ *p++ = OSSL_PARAM_construct_end();
+
+ if (!EVP_PKEY_CTX_set_params(ctx, params))
+ return 0;
+
+ return 1;
+}