NetworkManager-CI detected systematic failures on test scenarios using
MSCHAPv2 when wpa_supplicant uses OpenSSL-3.0.0.
The 'test_module_tests.py' script also fails, and the following log is
shown:
1627404013.761569: generate_nt_response failed
1627404013.761582: ms_funcs: 1 error
it seems that either DES_set_key() or DES_ecb_encrypt() changed
their semantic, but it doesn't make sense to fix them since their use
has been deprecated. Converting des_encrypt() to avoid use of deprecated
functions proved to fix the problem, and removed a couple of build warnings
at the same time.
Reported-by: Vladimir Benes <vbenes@xxxxxxxxxx>
Signed-off-by: Davide Caratti <davide.caratti@xxxxxxxxx>
---
src/crypto/crypto_openssl.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/src/crypto/crypto_openssl.c b/src/crypto/crypto_openssl.c
index fb9d18078..5eb714c91 100644
--- a/src/crypto/crypto_openssl.c
+++ b/src/crypto/crypto_openssl.c
@@ -206,8 +206,8 @@ int md4_vector(size_t num_elem, const u8 *addr[], const size_t *len, u8 *mac)
int des_encrypt(const u8 *clear, const u8 *key, u8 *cypher)
{
u8 pkey[8], next, tmp;
- int i;
- DES_key_schedule ks;
+ int i, plen, ret = -1;
+ EVP_CIPHER_CTX *ctx;
/* Add parity bits to the key */
next = 0;
@@ -218,10 +218,19 @@ int des_encrypt(const u8 *clear, const u8 *key, u8 *cypher)
}
pkey[i] = next | 1;
- DES_set_key((DES_cblock *) &pkey, &ks);
- DES_ecb_encrypt((DES_cblock *) clear, (DES_cblock *) cypher, &ks,
- DES_ENCRYPT);
- return 0;
+ ctx = EVP_CIPHER_CTX_new();
+ if (ctx &&
+ (EVP_EncryptInit_ex(ctx, EVP_des_ecb(), NULL, pkey, NULL) == 1) &&
+ (EVP_CIPHER_CTX_set_padding(ctx, 0) == 1) &&
+ (EVP_EncryptUpdate(ctx, cypher, &plen, clear, 8) == 1) &&
+ (EVP_EncryptFinal_ex(ctx, &cypher[plen], &plen) == 1))
+ ret = 0;
+ else
+ wpa_printf(MSG_ERROR, "OpenSSL: DES encrypt failed");
+
+ if (ctx)
+ EVP_CIPHER_CTX_free(ctx);
+ return ret;
}
--
2.31.1
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