examples/fips_validation/fips_validation_ecdsa.c

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(C) 2022 Marvell.
 */
 
#include <string.h>
#include <time.h>
#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
 
#ifdef USE_OPENSSL
#include <openssl/bn.h>
#include <openssl/rand.h>
#endif /* USE_OPENSSL */
 
#include <rte_cryptodev.h>
#include <rte_malloc.h>
 
#include "fips_validation.h"
 
#define CONFORMANCE_JSON_STR    "conformance"
#define TESTTYPE_JSON_STR   "testType"
#define CURVE_JSON_STR  "curve"
#define HASH_JSON_STR   "hashAlg"
#define RV_JSON_STR "randomValue"
 
#define MSG_JSON_STR    "message"
#define QX_JSON_STR "qx"
#define QY_JSON_STR "qy"
#define R_JSON_STR  "r"
#define S_JSON_STR  "s"
 
#define RV_BUF_LEN (1024/8)
#define RV_BIT_LEN (256)
 
#ifdef USE_JANSSON
struct {
    uint8_t type;
    const char *desc;
} ecdsa_test_types[] = {
        {ECDSA_AFT, "AFT"}
};
 
struct {
    enum rte_crypto_auth_algorithm auth;
    const char *desc;
} ecdsa_auth_algs[] = {
        {RTE_CRYPTO_AUTH_SHA1, "SHA-1"},
        {RTE_CRYPTO_AUTH_SHA224, "SHA2-224"},
        {RTE_CRYPTO_AUTH_SHA256, "SHA2-256"},
        {RTE_CRYPTO_AUTH_SHA384, "SHA2-384"},
        {RTE_CRYPTO_AUTH_SHA512, "SHA2-512"},
};
 
struct {
    enum rte_crypto_curve_id curve_id;
    const char *desc;
} ecdsa_curve_ids[] = {
    {RTE_CRYPTO_EC_GROUP_SECP192R1, "P-192"},
    {RTE_CRYPTO_EC_GROUP_SECP224R1, "P-224"},
    {RTE_CRYPTO_EC_GROUP_SECP256R1, "P-256"},
    {RTE_CRYPTO_EC_GROUP_SECP384R1, "P-384"},
    {RTE_CRYPTO_EC_GROUP_SECP521R1, "P-521"},
};
 
struct {
    uint8_t curve_len;
    const char *desc;
} ecdsa_curve_len[] = {
    {24, "P-192"},
    {28, "P-224"},
    {32, "P-256"},
    {48, "P-384"},
    {66, "P-521"},
};
 
#ifdef USE_OPENSSL
#define MAX_TRIES 10
static int
prepare_vec_ecdsa(void)
{
    BIGNUM *pkey = NULL, *order = NULL, *r = NULL;
    int ret = -1, j;
    unsigned long pid;
 
    /* For ECDSA prime fields, order of base points.
     * Below string array is indexed by starting with first supported
     * curve (SECP-192R1).
     */
    static const char * const orderstr[] = {
            "FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22831",
            "",
            "FFFFFFFFFFFFFFFFFFFFFFFFFFFF16A2E0B8F03E13DD29455C5C2A3D",
            "",
            "FFFFFFFF00000000FFFFFFFFFFFFFFFFBCE6FAADA7179E84F3B9CAC2FC632551",
            "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFC7634D81F4372DDF581A0DB248B0A77AECEC196ACCC52973",
            "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFA51868783BF2F966B7FCC0148F709A5D03BB5C9B8899C47AEBB6FB71E91386409"
    };
 
    /* Seed PRNG */
    if (vec.ecdsa.seed.val) {
        writeback_hex_str("", info.one_line_text, &vec.ecdsa.seed);
        RAND_seed((char *)info.one_line_text, strlen(info.one_line_text));
    } else {
        pid = getpid();
        RAND_seed(&pid, sizeof(pid));
    }
 
    if (!RAND_status())
        return -1;
 
    order = BN_new();
    if (!order)
        goto err;
 
    j = info.interim_info.ecdsa_data.curve_id - RTE_CRYPTO_EC_GROUP_SECP192R1;
    if (!BN_hex2bn(&order, orderstr[j]))
        goto err;
 
    pkey = BN_new();
    if (!pkey)
        goto err;
 
    for (j = 0; j < MAX_TRIES; j++) {
        /* pkey should be in [1, order - 1] */
        if (!BN_rand_range(pkey, order))
            goto err;
 
        if (!BN_is_zero(pkey))
            break;
    }
 
    if (j == MAX_TRIES)
        goto err;
 
    parse_uint8_hex_str("", BN_bn2hex(pkey), &vec.ecdsa.pkey);
 
    r = BN_new();
    if (!r)
        goto err;
 
    if (info.interim_info.ecdsa_data.random_msg) {
        if (!BN_rand(r, RV_BIT_LEN, 0, 0))
            goto err;
 
        parse_uint8_hex_str("", BN_bn2hex(r), &vec.ecdsa.seed);
    }
 
    ret = 0;
err:
    BN_free(order);
    BN_free(pkey);
    BN_free(r);
    return ret;
}
 
static int
prepare_vec_ecdsa_k(void)
{
    BIGNUM *pkey = NULL, *k = NULL;
    int ret = -1;
 
    if (!vec.ecdsa.pkey.len)
        return -1;
 
    pkey = BN_new();
    if (!pkey)
        goto err;
 
    writeback_hex_str("", info.one_line_text, &vec.ecdsa.pkey);
    ret = BN_hex2bn(&pkey, info.one_line_text);
    if ((uint32_t)ret != strlen(info.one_line_text))
        goto err;
 
    k = BN_new();
    if (!k)
        goto err;
 
    if (!BN_sub(k, pkey, BN_value_one()))
        goto err;
 
    if (BN_is_zero(pkey)) {
        if (!BN_add(k, pkey, BN_value_one()))
            goto err;
    }
 
    parse_uint8_hex_str("", BN_bn2hex(k), &vec.ecdsa.k);
    ret = 0;
err:
    BN_free(pkey);
    BN_free(k);
    return ret;
}
 
#else
static int
prepare_vec_ecdsa(void)
{
    /*
     * Generate ECDSA values.
     */
    return -ENOTSUP;
}
 
static int
prepare_vec_ecdsa_k(void)
{
    /*
     * Generate ECDSA values.
     */
    return -ENOTSUP;
}
#endif /* USE_OPENSSL */
 
static int
parse_test_ecdsa_json_interim_writeback(struct fips_val *val)
{
    RTE_SET_USED(val);
 
    if (info.interim_info.ecdsa_data.random_msg) {
        json_object_set_new(json_info.json_write_group, "conformance",
                            json_string("SP800-106"));
    }
 
    if (info.op == FIPS_TEST_ASYM_SIGGEN) {
        /* For siggen tests, ECDSA values can be created soon after
         * the test group data are parsed.
         */
        if (vec.ecdsa.pkey.val) {
            rte_free(vec.ecdsa.pkey.val);
            vec.ecdsa.pkey.val = NULL;
        }
 
        if (prepare_vec_ecdsa() < 0)
            return -1;
 
        info.interim_info.ecdsa_data.pubkey_gen = 1;
    }
 
    return 0;
}
 
static int
post_test_ecdsa_json_interim_writeback(struct fips_val *val)
{
    RTE_SET_USED(val);
 
    if (info.op == FIPS_TEST_ASYM_KEYGEN) {
        json_t *obj;
 
        writeback_hex_str("", info.one_line_text, &vec.ecdsa.qx);
        obj = json_string(info.one_line_text);
        json_object_set_new(json_info.json_write_group, "qx", obj);
 
        writeback_hex_str("", info.one_line_text, &vec.ecdsa.qy);
        obj = json_string(info.one_line_text);
        json_object_set_new(json_info.json_write_group, "qy", obj);
    }
 
    return 0;
}
 
static int
parse_test_ecdsa_json_writeback(struct fips_val *val)
{
    json_t *tcId;
 
    RTE_SET_USED(val);
 
    tcId = json_object_get(json_info.json_test_case, "tcId");
 
    json_info.json_write_case = json_object();
    json_object_set(json_info.json_write_case, "tcId", tcId);
 
    if (info.op == FIPS_TEST_ASYM_SIGGEN) {
        json_t *obj;
 
        writeback_hex_str("", info.one_line_text, &vec.ecdsa.r);
        obj = json_string(info.one_line_text);
        json_object_set_new(json_info.json_write_case, "r", obj);
 
        writeback_hex_str("", info.one_line_text, &vec.ecdsa.s);
        obj = json_string(info.one_line_text);
        json_object_set_new(json_info.json_write_case, "s", obj);
 
        if (info.interim_info.ecdsa_data.random_msg) {
            writeback_hex_str("", info.one_line_text, &vec.ecdsa.seed);
            obj = json_string(info.one_line_text);
            json_object_set_new(json_info.json_write_case, "randomValue", obj);
            json_object_set_new(json_info.json_write_case, "randomValueLen",
                json_integer(vec.ecdsa.seed.len * 8));
        }
    } else if (info.op == FIPS_TEST_ASYM_SIGVER) {
        if (vec.status == RTE_CRYPTO_OP_STATUS_SUCCESS)
            json_object_set_new(json_info.json_write_case, "testPassed", json_true());
        else
            json_object_set_new(json_info.json_write_case, "testPassed", json_false());
    }
 
    return 0;
}
 
static int
parse_interim_str(const char *key, char *src, struct fips_val *val)
{
    uint32_t i;
 
    RTE_SET_USED(val);
 
    if (strcmp(key, TESTTYPE_JSON_STR) == 0) {
        for (i = 0; i < RTE_DIM(ecdsa_test_types); i++)
            if (strstr(src, ecdsa_test_types[i].desc)) {
                info.parse_writeback = parse_test_ecdsa_json_writeback;
                break;
            }
 
        if (!info.parse_writeback || i >= RTE_DIM(ecdsa_test_types))
            return -EINVAL;
 
    } else if (strcmp(key, CURVE_JSON_STR) == 0) {
        for (i = 0; i < RTE_DIM(ecdsa_curve_ids); i++)
            if (strstr(src, ecdsa_curve_ids[i].desc)) {
                info.interim_info.ecdsa_data.curve_id = ecdsa_curve_ids[i].curve_id;
                info.interim_info.ecdsa_data.curve_len =
                    ecdsa_curve_len[i].curve_len;
                break;
            }
 
        if (i >= RTE_DIM(ecdsa_curve_ids))
            return -EINVAL;
    } else if (strcmp(key, HASH_JSON_STR) == 0) {
        for (i = 0; i < RTE_DIM(ecdsa_auth_algs); i++)
            if (strstr(src, ecdsa_auth_algs[i].desc)) {
                info.interim_info.ecdsa_data.auth = ecdsa_auth_algs[i].auth;
                break;
            }
 
        if (i >= RTE_DIM(ecdsa_auth_algs))
            return -EINVAL;
    } else if (strcmp(key, CONFORMANCE_JSON_STR) == 0) {
        info.interim_info.ecdsa_data.random_msg = 1;
    } else {
        return -EINVAL;
    }
 
    return 0;
}
 
static int
parse_siggen_message_str(const char *key, char *src, struct fips_val *val)
{
    int ret = 0;
 
    parse_uint8_hex_str(key, src, val);
    if (info.interim_info.ecdsa_data.random_msg) {
        ret = fips_test_randomize_message(val, &vec.ecdsa.seed);
        if (ret < 0)
            return ret;
    }
 
    if (vec.ecdsa.k.val) {
        rte_free(vec.ecdsa.k.val);
        vec.ecdsa.k.val = NULL;
    }
 
    ret = prepare_vec_ecdsa_k();
    return ret;
}
 
static int
parse_sigver_randomvalue_str(const char *key, char *src, struct fips_val *val)
{
    int ret = 0;
 
    parse_uint8_hex_str(key, src, val);
    if (info.interim_info.ecdsa_data.random_msg)
        ret = fips_test_randomize_message(&vec.pt, val);
 
    return ret;
}
 
struct fips_test_callback ecdsa_interim_json_vectors[] = {
        {TESTTYPE_JSON_STR, parse_interim_str, NULL},
        {CURVE_JSON_STR, parse_interim_str, NULL},
        {HASH_JSON_STR, parse_interim_str, NULL},
        {CONFORMANCE_JSON_STR, parse_interim_str, NULL},
        {NULL, NULL, NULL} 
};
 
struct fips_test_callback ecdsa_siggen_json_vectors[] = {
        {MSG_JSON_STR, parse_siggen_message_str, &vec.pt},
        {NULL, NULL, NULL} 
};
 
struct fips_test_callback ecdsa_sigver_json_vectors[] = {
        {MSG_JSON_STR, parse_uint8_hex_str, &vec.pt},
        {QX_JSON_STR, parse_uint8_hex_str, &vec.ecdsa.qx},
        {QY_JSON_STR, parse_uint8_hex_str, &vec.ecdsa.qy},
        {R_JSON_STR, parse_uint8_hex_str, &vec.ecdsa.r},
        {S_JSON_STR, parse_uint8_hex_str, &vec.ecdsa.s},
        {RV_JSON_STR, parse_sigver_randomvalue_str, &vec.ecdsa.seed},
        {NULL, NULL, NULL} 
};
 
int
parse_test_ecdsa_json_init(void)
{
    json_t *mode_obj = json_object_get(json_info.json_vector_set, "mode");
    const char *mode_str = json_string_value(mode_obj);
 
    info.callbacks = NULL;
    info.parse_writeback = NULL;
    info.interim_info.ecdsa_data.random_msg = 0;
 
    info.interim_callbacks = ecdsa_interim_json_vectors;
    info.post_interim_writeback = post_test_ecdsa_json_interim_writeback;
    info.parse_interim_writeback = parse_test_ecdsa_json_interim_writeback;
    if (strcmp(mode_str, "sigGen") == 0) {
        info.op = FIPS_TEST_ASYM_SIGGEN;
        info.callbacks = ecdsa_siggen_json_vectors;
    } else if (strcmp(mode_str, "sigVer") == 0) {
        info.op = FIPS_TEST_ASYM_SIGVER;
        info.callbacks = ecdsa_sigver_json_vectors;
    } else {
        return -EINVAL;
    }
 
    return 0;
}
#endif /* USE_JANSSON */