RSA with no padding is insecure
ID: java-security/no-rsa-no-padding
Language: Java
Severity: Error
Category: Security
CWE: 780
Description
You should never use RSA without padding. RSA should always be used with some padding to prevent any weak encryption.
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Non-Compliant Code Examples
class MyClass {
public void test1() {
Cipher c = Cipher.getInstance("RSA/NONE/NoPadding");
c.init(Cipher.ENCRYPT_MODE, k, iv);
byte[] cipherText = c.doFinal(plainText);
}
public void test2() {
Cipher c = javax.crypto.Cipher.getInstance("RSA/NONE/NoPadding");
c.init(Cipher.ENCRYPT_MODE, k, iv);
byte[] cipherText = c.doFinal(plainText);
}
}
Compliant Code Examples
class MyClass {
public void test() {
Cipher c = Cipher.getInstance("RSA/ECB/OAEPWithMD5AndMGF1Padding");
c.init(Cipher.ENCRYPT_MODE, k, iv);
byte[] cipherText = c.doFinal(plainText);
}
}
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