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Identify the use of unsafe cryptographic algorithms.
A weak, possibly reversible cryptographic cipher algorithm is used.
Some cryptography algorithms are nowadays considered as outdated and unsafe or actually broken, since they are too easy to decode.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 | Risky Cipher Algorithm (Java) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Significance | security | ||||||||||||
| Mnemonic | JAVA.CRYPTO.RCA | ||||||||||||
| 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="Risky Cipher Algorithm (Java)" |
In the following example, the analysis triggers a Risky Cipher Algorithm (Java) warning because getProperty() returns default value MyEncryptAlgo/ECB/PKCS5Padding if the key cryptoAlg1 is not found in the property list. ECB (Electronic Code Book) mode is not recommended for use in asymmetric encryption.
Japanese (ja)
import java.util.Properties;
public class MyCryptoAlgorithm {
public static String getCryptographyAlgorithm(Properties props) {
return props.getProperty("cryptoAlg1", "MyEncryptAlgo/ECB/PKCS5Padding"); // "Risky Cipher Algorithm (Java)" warning issued here.
}
}
In this example, the programmer should change the cipher to a more secure one, for instance replacing ECB with CBC.
Use a safer cryptography algorithm.
The following configuration file parameters affect checks for this warning class.