com.vmware.o11n.plugin.crypto.service.CryptoDigestService.java Source code

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Here is the source code for com.vmware.o11n.plugin.crypto.service.CryptoDigestService.java

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/*
 * Copyright (c) 2017 VMware, Inc. All Rights Reserved.
 * SPDX-License-Identifier: BSD-2-Clause
 */
package com.vmware.o11n.plugin.crypto.service;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.codec.digest.HmacUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;

@Component
public class CryptoDigestService {

    private final Logger log = LoggerFactory.getLogger(CryptoDigestService.class);

    public String md5(String data) {
        return Base64.encodeBase64String(DigestUtils.md5(data));
    }

    public String md5Base64(String dataB64) {
        validateB64(dataB64);
        return Base64.encodeBase64String(DigestUtils.md5(Base64.decodeBase64(dataB64)));
    }

    public String sha1(String data) {
        return Base64.encodeBase64String(DigestUtils.sha1(data));
    }

    public String sha1Base64(String dataB64) {
        validateB64(dataB64);
        return Base64.encodeBase64String(DigestUtils.sha1(Base64.decodeBase64(dataB64)));
    }

    public String sha256(String data) {
        return Base64.encodeBase64String(DigestUtils.sha256(data));
    }

    public String sha256Base64(String dataB64) {
        validateB64(dataB64);
        return Base64.encodeBase64String(DigestUtils.sha256(Base64.decodeBase64(dataB64)));
    }

    public String sha384(String data) {
        return Base64.encodeBase64String(DigestUtils.sha384(data));
    }

    public String sha384Base64(String dataB64) {
        validateB64(dataB64);
        return Base64.encodeBase64String(DigestUtils.sha384(Base64.decodeBase64(dataB64)));
    }

    public String sha512(String data) {
        return Base64.encodeBase64String(DigestUtils.sha512(data));
    }

    public String sha512Base64(String dataB64) {
        validateB64(dataB64);
        return Base64.encodeBase64String(DigestUtils.sha512(Base64.decodeBase64(dataB64)));
    }

    /**
     * HmacMD5
     *
     * @param keyB64 Secret key Base64 encoded
     * @param dataB64 Data to sign Base64 encoded
     * @return HmacMd5 MAC for the given key and data Base64 encoded
     */
    public String hmacMd5(String keyB64, String dataB64) {
        validateB64(keyB64);
        validateB64(dataB64);
        final byte[] key = Base64.decodeBase64(keyB64);
        final byte[] data = Base64.decodeBase64(dataB64);

        return Base64.encodeBase64String(HmacUtils.hmacMd5(key, data));
    }

    /**
     * HmacSHA1
     *
     * @param keyB64 Secret key Base64 encoded
     * @param dataB64 Data to sign Base64 encoded
     * @return HmacSha1 MAC for the given key and data Base64 encoded
     */
    public String hmacSha1(String keyB64, String dataB64) {
        validateB64(keyB64);
        validateB64(dataB64);
        final byte[] key = Base64.decodeBase64(keyB64);
        final byte[] data = Base64.decodeBase64(dataB64);

        return Base64.encodeBase64String(HmacUtils.hmacSha1(key, data));
    }

    /**
     * HmacSHA256
     *
     * @param keyB64 Secret key Base64 encoded
     * @param dataB64 Data to sign Base64 encoded
     * @return HmacSha256 MAC for the given key and data Base64 encoded
     */
    public String hmacSha256(String keyB64, String dataB64) {
        validateB64(keyB64);
        validateB64(dataB64);
        final byte[] key = Base64.decodeBase64(keyB64);
        final byte[] data = Base64.decodeBase64(dataB64);

        return Base64.encodeBase64String(HmacUtils.hmacSha256(key, data));
    }

    /**
     * HmacSHA384
     *
     * @param keyB64 Secret key Base64 encoded
     * @param dataB64 Data to sign Base64 encoded
     * @return HmacSha384 MAC for the given key and data Base64 encoded
     */
    public String hmacSha384(String keyB64, String dataB64) {
        validateB64(keyB64);
        validateB64(dataB64);
        final byte[] key = Base64.decodeBase64(keyB64);
        final byte[] data = Base64.decodeBase64(dataB64);

        return Base64.encodeBase64String(HmacUtils.hmacSha384(key, data));
    }

    /**
     * HmacSHA512
     *
     * @param keyB64 Secret key Base64 encoded
     * @param dataB64 Data to sign Base64 encoded
     * @return HmacSha512 MAC for the given key and data Base64 encoded
     */
    public String hmacSha512(String keyB64, String dataB64) {
        validateB64(keyB64);
        validateB64(dataB64);
        final byte[] key = Base64.decodeBase64(keyB64);
        final byte[] data = Base64.decodeBase64(dataB64);

        return Base64.encodeBase64String(HmacUtils.hmacSha512(key, data));
    }

    private void validateB64(String dataB64) {
        if (!Base64.isBase64(dataB64)) {
            throw new IllegalArgumentException(
                    "Expecting base64 encoded data.  Use CryptoEncoding.base64Encode() against this string before attempting to hash it");
        }
    }

}