init

README.md

@@ -1,2 +1,28 @@
 # bubblebabble
 Encode to Bubble Babble
+
+## Intro
+
+OpenSSH'  ssh-keygen  has  an  implementation  of  the  bubble  babble
+encoding for  key fingerprints. This  is a little wrapper  around that
+function so you can encode anything to bubble babble.
+
+## Compile and Install
+
+    gcc -g bubblebabble.c -o bubblebabble
+    sudo install -o root -g wheel bubblebabble /usr/local/bin/
+
+## Usage
+
+    % sha256 -q filename | bubblebabble
+    xevef-lotek-gonok-dataf-linif-gesek-konof-humuk-devyf-do[..]
+
+## Copyright + Author
+
+Copyright (c) 2017 T.v.Dein. All rights reserved.
+
+fingerprint_bubblebabble(): 
+
+Copyright (c) 2000, 2001 Markus Friedl.  All rights reserved.
+Copyright (c) 2008 Alexander von Gernler.  All rights reserved.
+Copyright (c) 2010,2011 Damien Miller.  All rights reserved.

bubblebabble.c

@@ -0,0 +1,118 @@
+/*
+  bubblebabble.c: licensed under BSD-License, see below.
+ */
+
+/*
+ * fingerprint_bubblebabble() from openssh-portable/sshkey.c:
+ *
+ * Copyright (c) 2000, 2001 Markus Friedl.  All rights reserved.
+ * Copyright (c) 2008 Alexander von Gernler.  All rights reserved.
+ * Copyright (c) 2010,2011 Damien Miller.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/types.h>
+
+static char *
+fingerprint_bubblebabble(u_char *dgst_raw, size_t dgst_raw_len)
+{
+        char vowels[] = { 'a', 'e', 'i', 'o', 'u', 'y' };
+        char consonants[] = { 'b', 'c', 'd', 'f', 'g', 'h', 'k', 'l', 'm',
+            'n', 'p', 'r', 's', 't', 'v', 'z', 'x' };
+        u_int i, j = 0, rounds, seed = 1;
+        char *retval;
+
+        rounds = (dgst_raw_len / 2) + 1;
+        if ((retval = calloc(rounds, 6)) == NULL)
+                return NULL;
+        retval[j++] = 'x';
+        for (i = 0; i < rounds; i++) {
+                u_int idx0, idx1, idx2, idx3, idx4;
+                if ((i + 1 < rounds) || (dgst_raw_len % 2 != 0)) {
+                        idx0 = (((((u_int)(dgst_raw[2 * i])) >> 6) & 3) +
+                            seed) % 6;
+                        idx1 = (((u_int)(dgst_raw[2 * i])) >> 2) & 15;
+                        idx2 = ((((u_int)(dgst_raw[2 * i])) & 3) +
+                            (seed / 6)) % 6;
+                        retval[j++] = vowels[idx0];
+                        retval[j++] = consonants[idx1];
+                        retval[j++] = vowels[idx2];
+                        if ((i + 1) < rounds) {
+                                idx3 = (((u_int)(dgst_raw[(2 * i) + 1])) >> 4) & 15;
+                                idx4 = (((u_int)(dgst_raw[(2 * i) + 1]))) & 15;
+                                retval[j++] = consonants[idx3];
+                                retval[j++] = '-';
+                                retval[j++] = consonants[idx4];
+                                seed = ((seed * 5) +
+                                    ((((u_int)(dgst_raw[2 * i])) * 7) +
+                                    ((u_int)(dgst_raw[(2 * i) + 1])))) % 36;
+                        }
+                } else {
+                        idx0 = seed % 6;
+                        idx1 = 16;
+                        idx2 = seed / 6;
+                        retval[j++] = vowels[idx0];
+                        retval[j++] = consonants[idx1];
+                        retval[j++] = vowels[idx2];
+                }
+        }
+        retval[j++] = 'x';
+        retval[j++] = '\0';
+        return retval;
+}
+
+
+int main(int argc, char **argv) {
+  FILE *input;
+  u_char digest[1024];
+  size_t digestlen;
+  char *hash;
+  int out = 1;
+  
+  if(argc < 2) {
+    input = stdin;
+  }
+  else {
+    if((input = fopen(argv[1], "rb")) == NULL) {
+      fprintf(stderr, "oops, could not open file!\n");
+      goto done;
+    }
+  }
+
+  digestlen = fread(digest, 1, 1024, input);
+
+  if(digestlen > 0) {
+    hash = fingerprint_bubblebabble(digest, digestlen);
+    fprintf(stdout, "%s\n", hash);
+    free(hash);
+    out = 0;
+  }
+  else {
+    fprintf(stderr, "oops, could not calculate bubbles!\n");
+    goto done;
+  }
+
+ done:
+  return out;  
+}