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gendsa: update command line app to use EVP calls 

Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/11225)
This commit is contained in:
Pauli 2020-03-10 15:09:18 +10:00
parent 8f7e1f68cc
commit dddbbc6f39
1 changed files with 30 additions and 2 deletions
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32
apps/gendsa.c
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@ -58,6 +58,8 @@ int gendsa_main(int argc, char **argv)
ENGINE *e = NULL;
BIO *out = NULL, *in = NULL;
DSA *dsa = NULL;
EVP_PKEY *pkey = NULL;
EVP_PKEY_CTX *ctx = NULL;
const EVP_CIPHER *enc = NULL;
char *dsaparams = NULL;
char *outfile = NULL, *passoutarg = NULL, *passout = NULL, *prog;
@ -139,14 +141,38 @@ int gendsa_main(int argc, char **argv)
" Your key size is %d! Larger key size may behave not as expected.\n",
OPENSSL_DSA_MAX_MODULUS_BITS, BN_num_bits(p));
pkey = EVP_PKEY_new();
if (pkey == NULL) {
BIO_printf(bio_err, "unable to allocate PKEY\n");
goto end;
}
if (!EVP_PKEY_set1_DSA(pkey, dsa)) {
BIO_printf(bio_err, "unable to associate DSA parameters with PKEY\n");
goto end;
}
ctx = EVP_PKEY_CTX_new(pkey, NULL);
if (ctx == NULL) {
BIO_printf(bio_err, "unable to create PKEY context\n");
goto end;
}
EVP_PKEY_free(pkey);
pkey = NULL;
if (EVP_PKEY_keygen_init(ctx) <= 0) {
BIO_printf(bio_err, "unable to set up for key generation\n");
goto end;
}
if (verbose)
BIO_printf(bio_err, "Generating DSA key, %d bits\n", BN_num_bits(p));
if (!DSA_generate_key(dsa))
if (EVP_PKEY_keygen(ctx, &pkey) <= 0) {
BIO_printf(bio_err, "unable to generate key\n");
goto end;
}
assert(private);
if (!PEM_write_bio_DSAPrivateKey(out, dsa, enc, NULL, 0, NULL, passout))
if (!PEM_write_bio_PrivateKey(out, pkey, enc, NULL, 0, NULL, passout)) {
BIO_printf(bio_err, "unable to output generated key\n");
goto end;
}
ret = 0;
end:
if (ret != 0)
@ -155,6 +181,8 @@ int gendsa_main(int argc, char **argv)
BIO_free(in);
BIO_free_all(out);
DSA_free(dsa);
EVP_PKEY_free(pkey);
EVP_PKEY_CTX_free(ctx);
release_engine(e);
OPENSSL_free(passout);
return ret;