[PATCH 2/3] bcrypt: Fix DSA public key export when we don't have a private key handle.
Hans Leidekker
hans at codeweavers.com
Thu Mar 24 04:35:58 CDT 2022
Signed-off-by: Hans Leidekker <hans at codeweavers.com>
---
dlls/bcrypt/gnutls.c | 29 +++++++++++++++++++++++++++--
dlls/bcrypt/tests/bcrypt.c | 13 ++++++++++++-
2 files changed, 39 insertions(+), 3 deletions(-)
diff --git a/dlls/bcrypt/gnutls.c b/dlls/bcrypt/gnutls.c
index eea84cf3aa9..0d2661f9a83 100644
--- a/dlls/bcrypt/gnutls.c
+++ b/dlls/bcrypt/gnutls.c
@@ -107,6 +107,8 @@ static int (*pgnutls_pubkey_import_dsa_raw)(gnutls_pubkey_t, const gnutls_datum_
static int (*pgnutls_pubkey_import_privkey)(gnutls_pubkey_t, gnutls_privkey_t, unsigned int, unsigned int);
/* Not present in gnutls version < 3.3.0 */
+static int (*pgnutls_pubkey_export_dsa_raw)(gnutls_pubkey_t, gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *,
+ gnutls_datum_t *);
static int (*pgnutls_pubkey_export_rsa_raw)(gnutls_pubkey_t, gnutls_datum_t *, gnutls_datum_t *);
static int (*pgnutls_privkey_export_ecc_raw)(gnutls_privkey_t, gnutls_ecc_curve_t *,
gnutls_datum_t *, gnutls_datum_t *, gnutls_datum_t *);
@@ -167,6 +169,12 @@ static int compat_gnutls_pubkey_export_ecc_raw(gnutls_pubkey_t key, gnutls_ecc_c
return GNUTLS_E_UNKNOWN_PK_ALGORITHM;
}
+static int compat_gnutls_pubkey_export_dsa_raw(gnutls_pubkey_t key, gnutls_datum_t *p, gnutls_datum_t *q,
+ gnutls_datum_t *g, gnutls_datum_t *y)
+{
+ return GNUTLS_E_UNKNOWN_PK_ALGORITHM;
+}
+
static int compat_gnutls_pubkey_export_rsa_raw(gnutls_pubkey_t key, gnutls_datum_t *m, gnutls_datum_t *e)
{
return GNUTLS_E_UNKNOWN_PK_ALGORITHM;
@@ -305,6 +313,7 @@ static NTSTATUS gnutls_process_attach( void *args )
LOAD_FUNCPTR_OPT(gnutls_cipher_tag)
LOAD_FUNCPTR_OPT(gnutls_cipher_add_auth)
+ LOAD_FUNCPTR_OPT(gnutls_pubkey_export_dsa_raw)
LOAD_FUNCPTR_OPT(gnutls_pubkey_export_ecc_raw)
LOAD_FUNCPTR_OPT(gnutls_pubkey_export_rsa_raw)
LOAD_FUNCPTR_OPT(gnutls_pubkey_import_ecc_raw)
@@ -740,7 +749,14 @@ static NTSTATUS key_export_dsa_public( struct key *key, UCHAR *buf, ULONG len, U
UCHAR *dst;
int ret;
- if ((ret = pgnutls_privkey_export_dsa_raw( key_data(key)->a.privkey, &p, &q, &g, &y, NULL )))
+ if (key_data(key)->a.pubkey)
+ ret = pgnutls_pubkey_export_dsa_raw( key_data(key)->a.pubkey, &p, &q, &g, &y );
+ else if (key_data(key)->a.privkey)
+ ret = pgnutls_privkey_export_dsa_raw( key_data(key)->a.privkey, &p, &q, &g, &y, NULL );
+ else
+ return STATUS_INVALID_PARAMETER;
+
+ if (ret)
{
pgnutls_perror( ret );
return STATUS_INTERNAL_ERROR;
@@ -805,7 +821,14 @@ static NTSTATUS key_export_dsa_capi_public( struct key *key, UCHAR *buf, ULONG l
return STATUS_NOT_IMPLEMENTED;
}
- if ((ret = pgnutls_privkey_export_dsa_raw( key_data(key)->a.privkey, &p, &q, &g, &y, NULL )))
+ if (key_data(key)->a.pubkey)
+ ret = pgnutls_pubkey_export_dsa_raw( key_data(key)->a.pubkey, &p, &q, &g, &y );
+ else if (key_data(key)->a.privkey)
+ ret = pgnutls_privkey_export_dsa_raw( key_data(key)->a.privkey, &p, &q, &g, &y, NULL );
+ else
+ return STATUS_INVALID_PARAMETER;
+
+ if (ret)
{
pgnutls_perror( ret );
return STATUS_INTERNAL_ERROR;
@@ -1123,6 +1146,8 @@ static NTSTATUS key_export_dsa_capi( struct key *key, UCHAR *buf, ULONG len, ULO
UCHAR *dst;
int ret, size;
+ if (!key_data(key)->a.privkey) return STATUS_INVALID_PARAMETER;
+
if ((ret = pgnutls_privkey_export_dsa_raw( key_data(key)->a.privkey, &p, &q, &g, &y, &x )))
{
pgnutls_perror( ret );
diff --git a/dlls/bcrypt/tests/bcrypt.c b/dlls/bcrypt/tests/bcrypt.c
index 03a37f31d31..df650379cfb 100644
--- a/dlls/bcrypt/tests/bcrypt.c
+++ b/dlls/bcrypt/tests/bcrypt.c
@@ -2902,7 +2902,7 @@ static void test_DSA(void)
UCHAR sig[40], schemes;
ULONG len, size;
NTSTATUS ret;
- BYTE *buf;
+ BYTE *buf, buf2[sizeof(BCRYPT_DSA_KEY_BLOB) + sizeof(dsaPublicBlob)];
ret = BCryptOpenAlgorithmProvider(&alg, BCRYPT_DSA_ALGORITHM, NULL, 0);
ok(!ret, "got %#lx\n", ret);
@@ -2917,6 +2917,17 @@ static void test_DSA(void)
ret = BCryptImportKeyPair(alg, NULL, BCRYPT_DSA_PUBLIC_BLOB, &key, dsaPublicBlob, sizeof(dsaPublicBlob), 0);
ok(!ret, "got %#lx\n", ret);
+ memset(buf2, 0xcc, sizeof(buf2));
+ ret = BCryptExportKey(key, NULL, BCRYPT_DSA_PUBLIC_BLOB, buf2, sizeof(buf2), &size, 0);
+ ok(!ret, "got %#lx\n", ret);
+ dsablob = (BCRYPT_DSA_KEY_BLOB *)buf2;
+ ok(dsablob->dwMagic == BCRYPT_DSA_PUBLIC_MAGIC, "got %#lx\n", dsablob->dwMagic);
+ ok(dsablob->cbKey == 64, "got %lu\n", dsablob->cbKey);
+ ok(size == sizeof(*dsablob) + dsablob->cbKey * 3, "got %lu\n", size);
+
+ ret = BCryptExportKey(key, NULL, BCRYPT_DSA_PRIVATE_BLOB, buf2, sizeof(buf2), &size, 0);
+ todo_wine ok(ret == STATUS_INVALID_PARAMETER, "got %#lx\n", ret);
+
ret = BCryptVerifySignature(key, NULL, dsaHash, sizeof(dsaHash), dsaSignature, sizeof(dsaSignature), 0);
ok(!ret, "got %#lx\n", ret);
--
2.30.2
More information about the wine-devel
mailing list