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ID: java-security/message-digest-custom
Language: Java
Severity: Notice
Category: Security
Avoid custom digest. Datadog recommends using existing digests that are proven to be secure. NIST recommends the use of SHA-224, SHA-256, SHA-384, SHA-512, SHA-512/224, or SHA-512/256.
class MyProprietaryMessageDigest extends MessageDigest {
@Override
protected byte[] engineDigest() {
// Do not use your own digest
return null;
}
}
class UseExistingDigest {
protected void usingDigest {
// instead of defining your own digest, use existing ones
MessageDigest sha256Digest = MessageDigest.getInstance("SHA256");
sha256Digest.update(password.getBytes());
}
}
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