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A weak, possibly reversible Initialization Vector is passed as a parameter.
Some cryptography algorithms are nowadays considered as outdated and unsafe or actually broken, since they are too easy to decode. This checker identifies uses of unsafe algorithms for cryptography.
The OWASP documentation provides more information on Using the Java Cryptographic Extensions.
| Class Name | Weak Initialization Vector Value (Java) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Significance | security | ||||||||||||
| Mnemonic | JAVA.CRYPTO.WIV | ||||||||||||
| Categories |
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| Availability | Available for Java only. |
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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="Weak Initialization Vector Value (Java)" |
Japanese (ja)
import javax.crypto.spec.IvParameterSpec;
public class InitializationVector {
public static IvParameterSpec weakInit(byte[] bytes) {
byte[] iv ={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
};
return new IvParameterSpec(iv); // 'Weak Initialization Vector Value (Java)'
// warning issued here
}
}
Generate a secure random Initialization Vector.
The following configuration file parameters affect checks for this warning class.