RSA should use a long key

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Metadata

ID: java-security/rsa-short-key

Language: Java

Severity: Warning

Category: Security

Description

When using RSA, use keys with at least 2048 bits.

Learn More

Arguments

  • min-length: Minimum length for an RSA key. Default: 2048.

Non-Compliant Code Examples

public class MyClass {

    public void test () {
        KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
        keyGen.initialize(512);
    }
}

Compliant Code Examples

public class MyClass {

    public void test () {
        KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
        keyGen.initialize(2048);
    }
}
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