Found blowfishspeed.[

1 files changed, 37 insertions, 0 deletions

diff --git a/ipif/blowfishspeed.c b/ipif/blowfishspeed.c
new file mode 100644
index 0000000..aaaf622
--- /dev/null
+++ b/ipif/blowfishspeed.c
@@ -0,0 +1,37 @@
+/**/
+
+#include <stdio.h>
+#include <assert.h>
+#include <string.h>
+
+#include "blowfish.h"
+
+static void checkrw(int r, int exp_r, const char *op, FILE *f) {
+  if (ferror(f)) { perror(op); exit(3); }
+  if (feof(f)) { fprintf(stderr,"unexpected eof on %s\n",op); exit(2); }
+  assert(r==exp_r);
+}
+
+int main(void) {
+  struct blowfish_cbc_state cbc;
+  unsigned char keybuf[BLOWFISH_MAXKEYBYTES], ivbuf[BLOWFISH_BLOCKBYTES];
+  unsigned char ibuf[BLOWFISH_BLOCKBYTES], obuf[BLOWFISH_BLOCKBYTES];
+  int r;
+
+  r= fread(keybuf,1,sizeof(keybuf),stdin); checkrw(r,sizeof(keybuf),"input",stdin);
+  blowfish_loadkey(&cbc.ek,keybuf,sizeof(keybuf));
+
+  r= fread(ibuf,1,sizeof(ivbuf),stdin); checkrw(r,sizeof(ivbuf),"input",stdin);
+  blowfish_cbc_setiv(&cbc,ivbuf);
+
+  for (;;) {
+    r= fread(ibuf,1,sizeof(ibuf),stdin); if (r<sizeof(ibuf) && r>=0) break;
+    checkrw(r,sizeof(ibuf),"input",stdin);
+    blowfish_cbc_encrypt(&cbc,ibuf,obuf);
+    r= fwrite(obuf,1,sizeof(obuf),stdout); checkrw(r,sizeof(obuf),"output",stdout);
+  }
+  memset(ibuf+r,sizeof(ibuf)-r,sizeof(ibuf)-r);
+  blowfish_cbc_encrypt(&cbc,ibuf,obuf);
+  r= fwrite(obuf,1,sizeof(obuf),stdout); checkrw(r,sizeof(obuf),"output",stdout);
+  return 0;
+};