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| CodeSonar® 9.2p0 | CONFIDENTIAL | CodeSecure Inc |
A function uses a cryptographic operation, but is missing a prerequisite step for that operation.
| Class Name | Missing Required Cryptographic Step (Java) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Significance | security | |||||||||
| Mnemonic | JAVA.CRYPTO.MRCS | |||||||||
| Categories |
|
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| Availability | Available for Java and Kotlin. |
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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="Missing Required Cryptographic Step (Java)" |
Japanese (ja)
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
public class MissingCryptoStep {
public void CryptoMethod() throws NoSuchAlgorithmException {
KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
SecretKey secretKey = keyGenerator.generateKey(); // 'Missing Required Cryptographic Step (Java)' warning issued here:
// - Missing call to init() before call to generateKey().
// - Default initialization will be used. This may result in a less secure key than desired,
// and may also cause interoperability issues if multiple different cryptographic
// providers are used.
// ...
MessageDigest messageDigest = MessageDigest.getInstance("SHA-512");
byte[] hash = messageDigest.digest(); // 'Missing Required Cryptographic Step (Java)' warning issued here:
// - Missing call to update() before call to digest().
// - 'hash' will contain no data.
// ...
}
}
Add the missing cryptographic step.
The following configuration file parameters affect checks for this warning class.
To report problems with this documentation, please visit https://support.codesecure.com/.