diff --git a/demos/box_old.c b/demos/box_old.c
deleted file mode 100644
index a81eee84..00000000
--- a/demos/box_old.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * GraxRabble
- * Demo programs for libsodium.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <sodium.h> /* library header */
-
-#include "demo_utils.h" /* utility functions shared by demos */
-
-/*
- * Shows how crypto_box_afternm works using Bob and Alice with a simple
- * message. Both clients must generate their own key pair and swap public
- * key. The library will perform Diffie-Hellman to generate a shared key
- * for symmetric encryption.
- *
- * Note that crypto_box uses padding at the start of both messages.
- * The padding must be zero else the encryption or decryption will fail.
- *
- * Encrypted messages will be 16 bytes longer because a 16 byte
- * authentication token will be prepended to the message.
- *
- * Note the same nonce must not be used; it should be safe to use a counter.
- */
-static int
-box(void)
-{
-    unsigned char bob_pk[crypto_box_PUBLICKEYBYTES]; /* Bob public */
-    unsigned char bob_sk[crypto_box_SECRETKEYBYTES]; /* Bob secret */
-    unsigned char bob_ss[crypto_box_BEFORENMBYTES];  /* Bob session */
-
-    unsigned char alice_pk[crypto_box_PUBLICKEYBYTES]; /* Alice public */
-    unsigned char alice_sk[crypto_box_SECRETKEYBYTES]; /* Alice secret */
-    unsigned char alice_ss[crypto_box_BEFORENMBYTES];  /* Alice session */
-
-    unsigned char n[crypto_box_NONCEBYTES];              /* message nonce */
-    unsigned char m[BUFFER_SIZE + crypto_box_ZEROBYTES]; /* plaintext */
-    unsigned char c[BUFFER_SIZE + crypto_box_ZEROBYTES]; /* ciphertext */
-    size_t mlen;                                         /* length */
-    int r;
-
-    puts("Example: crypto_box_afternm (archaic)\n");
-
-    puts("Generating keypairs...\n");
-    crypto_box_keypair(bob_pk, bob_sk);     /* generate Bob's keys */
-    crypto_box_keypair(alice_pk, alice_sk); /* generate Alice's keys */
-
-    puts("Bob");
-    fputs("Public: ", stdout);
-    print_hex(bob_pk, sizeof bob_pk);
-    putchar('\n');
-    fputs("Secret: ", stdout);
-    print_hex(bob_sk, sizeof bob_sk);
-    putchar('\n');
-    putchar('\n');
-
-    puts("Alice");
-    fputs("Public: ", stdout);
-    print_hex(alice_pk, sizeof alice_pk);
-    putchar('\n');
-    fputs("Secret: ", stdout);
-    print_hex(alice_sk, sizeof alice_sk);
-    putchar('\n');
-    putchar('\n');
-
-    /* perform diffie hellman */
-    crypto_box_beforenm(bob_ss, alice_pk, bob_sk);
-    crypto_box_beforenm(alice_ss, bob_pk, alice_sk);
-    fputs("Bob shared key:   ", stdout);
-    print_hex(bob_ss, sizeof bob_ss);
-    putchar('\n');
-    fputs("Alice shared key: ", stdout);
-    print_hex(alice_ss, sizeof alice_ss);
-    putchar('\n');
-    putchar('\n');
-
-    /* nonce must be generated per message, safe to send with message */
-    puts("Generating nonce...");
-    randombytes_buf(n, sizeof n);
-    fputs("Nonce: ", stdout);
-    print_hex(n, sizeof n);
-    putchar('\n');
-    putchar('\n');
-
-    /* read input */
-    mlen = prompt_input("Input your message > ",
-                        (char*)m + crypto_box_ZEROBYTES,
-                        sizeof m - crypto_box_ZEROBYTES);
-
-    /* must zero at least the padding */
-    sodium_memzero(m, crypto_box_ZEROBYTES);
-
-    puts("Notice the 32 bytes of zero");
-    print_hex(m, mlen + crypto_box_ZEROBYTES);
-    putchar('\n');
-    putchar('\n');
-
-    /* encrypt the message */
-    printf("Encrypting with %s\n\n", crypto_box_primitive());
-    crypto_box_afternm(c, m, mlen + crypto_box_ZEROBYTES, n, bob_ss);
-
-    /* sent message */
-    puts("Bob sending message...\n");
-    puts("Notice the prepended 16 byte authentication token");
-    puts("Format: nonce::message");
-    fputs("Ciphertext: ", stdout);
-    print_hex(n, sizeof n);
-    fputs("::", stdout);
-    print_hex(c, mlen + crypto_box_ZEROBYTES);
-    putchar('\n');
-    putchar('\n');
-
-    /* decrypt the message */
-    puts("Alice opening message...");
-
-    /* must zero at least the padding */
-    sodium_memzero(c, crypto_box_BOXZEROBYTES);
-    r = crypto_box_open_afternm(m, c, mlen + crypto_box_ZEROBYTES, n, alice_ss);
-
-    puts("Notice the 32 bytes of zero");
-    print_hex(m, mlen + crypto_box_ZEROBYTES);
-    putchar('\n');
-
-    print_verification(r);
-    if (r == 0)
-        printf("Plaintext: %s\n\n", m + crypto_box_ZEROBYTES);
-
-    sodium_memzero(bob_pk, sizeof bob_pk); /* wipe sensitive data */
-    sodium_memzero(bob_sk, sizeof bob_sk);
-    sodium_memzero(bob_ss, sizeof bob_ss);
-    sodium_memzero(alice_pk, sizeof alice_pk);
-    sodium_memzero(alice_sk, sizeof alice_sk);
-    sodium_memzero(alice_ss, sizeof alice_ss);
-    sodium_memzero(n, sizeof n);
-    sodium_memzero(m, sizeof m);
-    sodium_memzero(c, sizeof c);
-    return r;
-}
-
-int
-main(void)
-{
-    sodium_init();
-    printf("Using LibSodium %s\n", sodium_version_string());
-
-    return box() != 0;
-}