diff options
Diffstat (limited to 'userspace/ncrypto_generate_params.c')
| -rw-r--r-- | userspace/ncrypto_generate_params.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/userspace/ncrypto_generate_params.c b/userspace/ncrypto_generate_params.c new file mode 100644 index 0000000..a993360 --- /dev/null +++ b/userspace/ncrypto_generate_params.c @@ -0,0 +1,182 @@ +/* + * Copyright 2010 Red Hat, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY RED HAT, INC. AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL RED HAT, INC. OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * + * Red Hat authors: Jan Chadima <jchadima@redhat.com> + * Miloslav Trmač <mitr@redhat.com + */ + +#include <limits.h> +#include <stdint.h> +#include <sys/types.h> +#include <stdlib.h> +#include <errno.h> +#include <linux/ncr.h> +#include "ncrypto.h" + +int +ncr_key_generate_params_init(ncr_key_generate_params_t *params) +{ + ncr_key_generate_params_t rv; + + if (!params) { + errno = EINVAL; + return -1; + } + + if (!(rv = calloc(1, sizeof(*rv)))) { + errno = ENOMEM; + return -1; + } + + rv->algorithm = NCR_ALG_NONE; + *params = rv; + + return 0; +} + +int +ncr_key_generate_params_deinit(ncr_key_generate_params_t params) +{ + if (params) + free(params); + + return 0; +} + +int +ncr_key_generate_params_set_algorithm(ncr_key_generate_params_t params, ncr_algorithm_t algorithm) +{ + if (!params) { + errno = EINVAL; + return -1; + } + + params->algorithm = algorithm; + + return 0; +} + +int +ncr_key_generate_params_set_keyflags(ncr_key_generate_params_t params, unsigned int keyflags) +{ + if (!params) { + errno = EINVAL; + return -1; + } + + params->keyflags = keyflags; + + return 0; +} + +int +ncr_key_generate_params_set_secret_bits(ncr_key_generate_params_t params, unsigned int bits) +{ + if (!params) { + errno = EINVAL; + return -1; + } + params->params.secret.bits = bits; + + return 0; +} + +int +ncr_key_generate_params_set_rsa_bits(ncr_key_generate_params_t params, unsigned int bits) +{ + if (!params) { + errno = EINVAL; + return -1; + } + params->params.rsa.bits = bits; + + return 0; +} + +int +ncr_key_generate_params_set_rsa_e(ncr_key_generate_params_t params, void *e, size_t e_size) +{ + unsigned long value; + const uint8_t *p; + + if (!params || !e) { + errno = EINVAL; + return -1; + } + value = 0; + for (p = e; p < (const uint8_t *)e + e_size; p++) { + if (value > (ULONG_MAX - *p) / 256) { + errno = EOVERFLOW; + return -1; + } + value = value * 256 + *p; + } + + params->params.rsa.e = value; + return 0; +} + +int +ncr_key_generate_params_set_dsa_p_bits(ncr_key_generate_params_t params, + unsigned int p_bits) +{ + if (!params) { + errno = EINVAL; + return -1; + } + params->params.dsa.p_bits = p_bits; + + return 0; +} + +int +ncr_key_generate_params_set_dsa_q_bits(ncr_key_generate_params_t params, + unsigned int q_bits) +{ + if (!params) { + errno = EINVAL; + return -1; + } + params->params.dsa.q_bits = q_bits; + + return 0; +} + +int +ncr_key_generate_params_set_dh(ncr_key_generate_params_t params, void *p, size_t p_size, void *g, size_t g_size) +{ + if (!params) { + errno = EINVAL; + return -1; + } + + params->params.dh.p = p; + params->params.dh.p_size = p_size; + params->params.dh.g = g; + params->params.dh.g_size = g_size; + + return 0; +} + |