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Add a test with public information about the generated key
Signed-off-by: Eduard Sabirov <[email protected]>
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Eduard Sabirov
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Dec 27, 2024
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Original file line number | Diff line number | Diff line change |
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#define _GNU_SOURCE | ||
#include <stdbool.h> | ||
#include <stdio.h> | ||
#include <stdlib.h> | ||
#include <string.h> | ||
#include <openssl/core_names.h> | ||
#include <openssl/evp.h> | ||
#include <openssl/store.h> | ||
#include <openssl/rand.h> | ||
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static void hexify(char *out, unsigned char *byte, size_t len) | ||
{ | ||
char c[2], s; | ||
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for (size_t i = 0; i < len; i++) { | ||
out[i * 3] = '%'; | ||
c[0] = byte[i] >> 4; | ||
c[1] = byte[i] & 0x0f; | ||
for (int j = 0; j < 2; j++) { | ||
if (c[j] < 0x0A) { | ||
s = '0'; | ||
} else { | ||
s = 'a' - 10; | ||
} | ||
out[i * 3 + 1 + j] = c[j] + s; | ||
} | ||
} | ||
out[len * 3] = '\0'; | ||
} | ||
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int main(int argc, char *argv[]) | ||
{ | ||
char *label; | ||
unsigned char id[16]; | ||
char idhex[16 * 3 + 1]; | ||
char *uri; | ||
size_t rsa_bits = 1024; | ||
const char *key_usage = "digitalSignature"; | ||
OSSL_PARAM params[4]; | ||
int miniid; | ||
EVP_PKEY_CTX *ctx; | ||
EVP_PKEY *key = NULL; | ||
BIO *mem; | ||
int maxlen = 4000; | ||
char buf[maxlen]; | ||
const char pub_part[] = "type=public"; | ||
int ret; | ||
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ctx = EVP_PKEY_CTX_new_from_name(NULL, "RSA", "provider=pkcs11"); | ||
if (ctx == NULL) { | ||
fprintf(stderr, "Failed to init PKEY context for generate\n"); | ||
exit(EXIT_FAILURE); | ||
} | ||
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ret = EVP_PKEY_keygen_init(ctx); | ||
if (ret != 1) { | ||
fprintf(stderr, "Failed to init keygen\n"); | ||
exit(EXIT_FAILURE); | ||
} | ||
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ret = RAND_bytes(id, 16); | ||
if (ret != 1) { | ||
fprintf(stderr, "Failed to generate key id\n"); | ||
exit(EXIT_FAILURE); | ||
} | ||
miniid = (id[0] << 24) + (id[1] << 16) + (id[2] << 8) + id[3]; | ||
ret = asprintf(&label, "Test-RSA-gen-%08x", miniid); | ||
if (ret == -1) { | ||
fprintf(stderr, "Failed to make label\n"); | ||
exit(EXIT_FAILURE); | ||
} | ||
hexify(idhex, id, 16); | ||
ret = asprintf(&uri, "pkcs11:object=%s;id=%s", label, idhex); | ||
if (ret == -1) { | ||
fprintf(stderr, "Failed to compose PKCS#11 URI\n"); | ||
exit(EXIT_FAILURE); | ||
} | ||
params[0] = OSSL_PARAM_construct_utf8_string("pkcs11_uri", uri, 0); | ||
params[1] = OSSL_PARAM_construct_utf8_string("pkcs11_key_usage", | ||
(char *)key_usage, 0); | ||
params[2] = | ||
OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_RSA_BITS, &rsa_bits); | ||
params[3] = OSSL_PARAM_construct_end(); | ||
ret = EVP_PKEY_CTX_set_params(ctx, params); | ||
if (ret != 1) { | ||
fprintf(stderr, "Failed to set params\n"); | ||
exit(EXIT_FAILURE); | ||
} | ||
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ret = EVP_PKEY_generate(ctx, &key); | ||
if (ret != 1) { | ||
fprintf(stderr, "Failed to generate key\n"); | ||
exit(EXIT_FAILURE); | ||
} | ||
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EVP_PKEY_CTX_free(ctx); | ||
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ctx = EVP_PKEY_CTX_new_from_pkey(NULL, key, "provider=pkcs11"); | ||
if (ctx == NULL) { | ||
fprintf(stderr, "Failed to init PKEY context for sign\n"); | ||
exit(EXIT_FAILURE); | ||
} | ||
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mem = BIO_new(BIO_s_mem()); | ||
if (mem == NULL) { | ||
fprintf(stderr, "Failed to init BIO\n"); | ||
exit(EXIT_FAILURE); | ||
} | ||
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ret = EVP_PKEY_print_public(mem, key, 0, NULL); | ||
if (ret != 1) { | ||
fprintf(stderr, "Failed to print public key\n"); | ||
exit(EXIT_FAILURE); | ||
} | ||
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memset(buf, 0x00, maxlen); | ||
BIO_read(mem, buf, maxlen); | ||
if (strstr(buf, pub_part) == NULL) { | ||
fprintf(stderr, "Incorrect information about the public key\n"); | ||
exit(EXIT_FAILURE); | ||
} | ||
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BIO_free(mem); | ||
EVP_PKEY_CTX_free(ctx); | ||
EVP_PKEY_free(key); | ||
exit(EXIT_SUCCESS); | ||
} |