}

    private boolean isGCMCipher() {
        return this.cipherId == CIPHER_AES_128_GCM || this.cipherId == CIPHER_AES_256_GCM;
    }

    private int getKeyLength() {
        // Java 17 switch expression for cipher key length determination
        return switch (this.cipherId) {
        case CIPHER_AES_128_CCM, CIPHER_AES_128_GCM -> 16; // AES-128 ciphers use 16-byte keys