jodd-htmlstapler/src/main/java/jodd/htmlstapler/HtmlStaplerBundlesManager.java
protected String createDigest(final String source) {
		final DigestEngine digestEngine = DigestEngine.sha256();

		final byte[] bytes = digestEngine.digest(CharUtil.toSimpleByteArray(source));

		String digest = Base32.encode(bytes);

		if (uniqueDigestKey != null) {
			digest += uniqueDigestKey;
		}

		return digest;
	}
protected String createDigest(final String source) {
		final DigestEngine digestEngine = DigestEngine.sha256();

		final byte[] bytes = digestEngine.digest(CharUtil.toSimpleByteArray(source));

		String digest = Base32.encode(bytes);

		if (uniqueDigestKey != null) {
			digest += uniqueDigestKey;
		}

		return digest;
	}
Creates digest i.e. bundle id from given string.
Returned digest must be filename safe, for all platforms.