org.bouncycastle.pkcs.PKCSUtils Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of bcpkix-jdk14 Show documentation

The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.4. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.

There is a newer version: 1.79

Show newest version

package org.bouncycastle.pkcs;

import java.util.HashMap;
import java.util.Map;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers;
import org.bouncycastle.asn1.nist.NISTObjectIdentifiers;
import org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers;
import org.bouncycastle.util.Integers;

class PKCSUtils
{
    private static final Map PRFS_SALT = new HashMap();

    static
    {
        PRFS_SALT.put(PKCSObjectIdentifiers.id_hmacWithSHA1, Integers.valueOf(20));
        PRFS_SALT.put(PKCSObjectIdentifiers.id_hmacWithSHA256, Integers.valueOf(32));
        PRFS_SALT.put(PKCSObjectIdentifiers.id_hmacWithSHA512, Integers.valueOf(64));
        PRFS_SALT.put(PKCSObjectIdentifiers.id_hmacWithSHA224, Integers.valueOf(28));
        PRFS_SALT.put(PKCSObjectIdentifiers.id_hmacWithSHA384, Integers.valueOf(48));
        PRFS_SALT.put(NISTObjectIdentifiers.id_hmacWithSHA3_224, Integers.valueOf(28));
        PRFS_SALT.put(NISTObjectIdentifiers.id_hmacWithSHA3_256, Integers.valueOf(32));
        PRFS_SALT.put(NISTObjectIdentifiers.id_hmacWithSHA3_384, Integers.valueOf(48));
        PRFS_SALT.put(NISTObjectIdentifiers.id_hmacWithSHA3_512, Integers.valueOf(64));
        PRFS_SALT.put(CryptoProObjectIdentifiers.gostR3411Hmac, Integers.valueOf(32));
    }

    static int getSaltSize(ASN1ObjectIdentifier algorithm)
    {
        if (!PRFS_SALT.containsKey(algorithm))
        {
            throw new IllegalStateException("no salt size for algorithm: " + algorithm);
        }

        return ((Integer)PRFS_SALT.get(algorithm)).intValue();
    }
}