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A use of one of the following: CALG_3DES, CALG_3DES_112, CALG_DES, CALG_DESX, CALG_MD2, CALG_MD4, CALG_MD5, CALG_HUGHES_MD5, CALG_RC2, CALG_RC4, CALG_RC5.
These macros identify cryptographic algorithms that are considered weak by modern standards. Other algorithms should be preferred.
| Class Name | Use of Weak Cryptographic Algorithm | ||||||
|---|---|---|---|---|---|---|---|
| Significance | security | ||||||
| Mnemonic | BADMACRO.WEAK_CRYPTO | ||||||
| Categories |
|
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| Availability | Available for C and C++. |
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| Enabling | Checks for this warning class are enabled by
default. To disable them, add the following WARNING_FILTER rule to the
project configuration file.
WARNING_FILTER += discard class="Use of Weak Cryptographic Algorithm" |
Japanese (ja)
#include <windows.h>
#include <wincrypt.h>
BOOL badmacro_weakcrypto(HCRYPTPROV hProv,
HCRYPTHASH hBaseData,
DWORD dwFlags,
HCRYPTKEY *phKey){
return CryptDeriveKey( hProv, CALG_MD5, hBaseData, dwFlags, phKey ); /* 'Use of Weak Cryptographic Algorithm'
* warning issued here
*/
}
This class is implemented using a BAD_MACRO_* rule set in the general template configuration file.
The following configuration file parameters affect checks for this warning class.