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Refactor OpenSSL ECDSA type check to opensslecdsa_valid_key_alg helper

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Timo Teräs 2022-12-28 15:37:33 +02:00 committed by Ondřej Surý
parent 608ca9b140
commit 96b8ad21f6
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GPG Key ID: 2820F37E873DEA41
1 changed files with 21 additions and 20 deletions
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41
lib/dns/opensslecdsa_link.c
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@ -57,6 +57,17 @@
goto err; \
}
static bool
opensslecdsa_valid_key_alg(unsigned int key_alg) {
switch (key_alg) {
case DST_ALG_ECDSA256:
case DST_ALG_ECDSA384:
return (true);
default:
return (false);
}
}
#if OPENSSL_VERSION_NUMBER >= 0x30000000L && OPENSSL_API_LEVEL >= 30000
static isc_result_t
raw_key_to_ossl(unsigned int key_alg, int private, const unsigned char *key,
@ -169,8 +180,7 @@ opensslecdsa_createctx(dst_key_t *key, dst_context_t *dctx) {
const EVP_MD *type = NULL;
UNUSED(key);
REQUIRE(dctx->key->key_alg == DST_ALG_ECDSA256 ||
dctx->key->key_alg == DST_ALG_ECDSA384);
REQUIRE(opensslecdsa_valid_key_alg(dctx->key->key_alg));
REQUIRE(dctx->use == DO_SIGN || dctx->use == DO_VERIFY);
evp_md_ctx = EVP_MD_CTX_create();
@ -213,8 +223,7 @@ static void
opensslecdsa_destroyctx(dst_context_t *dctx) {
EVP_MD_CTX *evp_md_ctx = dctx->ctxdata.evp_md_ctx;
REQUIRE(dctx->key->key_alg == DST_ALG_ECDSA256 ||
dctx->key->key_alg == DST_ALG_ECDSA384);
REQUIRE(opensslecdsa_valid_key_alg(dctx->key->key_alg));
REQUIRE(dctx->use == DO_SIGN || dctx->use == DO_VERIFY);
if (evp_md_ctx != NULL) {
@ -228,8 +237,7 @@ opensslecdsa_adddata(dst_context_t *dctx, const isc_region_t *data) {
isc_result_t ret = ISC_R_SUCCESS;
EVP_MD_CTX *evp_md_ctx = dctx->ctxdata.evp_md_ctx;
REQUIRE(dctx->key->key_alg == DST_ALG_ECDSA256 ||
dctx->key->key_alg == DST_ALG_ECDSA384);
REQUIRE(opensslecdsa_valid_key_alg(dctx->key->key_alg));
REQUIRE(dctx->use == DO_SIGN || dctx->use == DO_VERIFY);
if (dctx->use == DO_SIGN) {
@ -277,8 +285,7 @@ opensslecdsa_sign(dst_context_t *dctx, isc_buffer_t *sig) {
const unsigned char *sigder_copy;
const BIGNUM *r, *s;
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
REQUIRE(opensslecdsa_valid_key_alg(key->key_alg));
REQUIRE(dctx->use == DO_SIGN);
if (key->key_alg == DST_ALG_ECDSA256) {
@ -341,8 +348,7 @@ opensslecdsa_verify(dst_context_t *dctx, const isc_region_t *sig) {
unsigned char *sigder_copy;
BIGNUM *r = NULL, *s = NULL;
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
REQUIRE(opensslecdsa_valid_key_alg(key->key_alg));
REQUIRE(dctx->use == DO_VERIFY);
if (key->key_alg == DST_ALG_ECDSA256) {
@ -492,8 +498,7 @@ opensslecdsa_generate(dst_key_t *key, int unused, void (*callback)(int)) {
#endif /* OPENSSL_VERSION_NUMBER < 0x30000000L || OPENSSL_API_LEVEL < 30000 */
int group_nid;
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
REQUIRE(opensslecdsa_valid_key_alg(key->key_alg));
UNUSED(unused);
UNUSED(callback);
@ -602,8 +607,7 @@ opensslecdsa_isprivate(const dst_key_t *key) {
BIGNUM *priv = NULL;
#endif /* OPENSSL_VERSION_NUMBER < 0x30000000L || OPENSSL_API_LEVEL < 30000 */
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
REQUIRE(opensslecdsa_valid_key_alg(key->key_alg));
pkey = key->keydata.pkey;
if (pkey == NULL) {
@ -744,8 +748,7 @@ opensslecdsa_fromdns(dst_key_t *key, isc_buffer_t *data) {
size_t len;
#endif /* OPENSSL_VERSION_NUMBER < 0x30000000L || OPENSSL_API_LEVEL < 30000 */
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
REQUIRE(opensslecdsa_valid_key_alg(key->key_alg));
if (key->key_alg == DST_ALG_ECDSA256) {
len = DNS_KEY_ECDSA256SIZE;
@ -1187,8 +1190,7 @@ opensslecdsa_parse(dst_key_t *key, isc_lex_t *lexer, dst_key_t *pub) {
int i, privkey_index = -1;
bool finalize_key = false;
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
REQUIRE(opensslecdsa_valid_key_alg(key->key_alg));
/* read private key file */
ret = dst__privstruct_parse(key, DST_ALG_ECDSA256, lexer, key->mctx,
@ -1321,8 +1323,7 @@ opensslecdsa_fromlabel(dst_key_t *key, const char *engine, const char *label,
EVP_PKEY *pkey = NULL;
EVP_PKEY *pubpkey = NULL;
REQUIRE(key->key_alg == DST_ALG_ECDSA256 ||
key->key_alg == DST_ALG_ECDSA384);
REQUIRE(opensslecdsa_valid_key_alg(key->key_alg));
UNUSED(pin);