Added the actual sample file.

.travis.yml

@@ -5,6 +5,7 @@ services:
   - docker
 script:
   - cd _build/linux64
+  - make tests
   - make check
   - ls -lRa
   - pwd

src/sample.c

@@ -0,0 +1,58 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <dopenssl/rsa.h>
+#include <dopenssl/rand.h>
+
+int main(int argc, char **argv)
+{
+  if (argc != 2)
+  {
+    printf("usage: %s [passphrase]\n", argv[0]);
+    return(1);
+  }
+
+  unsigned int const bits = 2048;
+
+  char const* passphrase = argv[1];
+  unsigned int const length = strlen(passphrase);
+  unsigned int const size = bits / 8;
+  unsigned int const occurences = size / length + 1;
+
+  unsigned char* seed = malloc(occurences * length + 1);
+  memset(seed, 0x0, occurences * length + 1);
+
+  /* Concatenate the passphrase so as to create a 256-byte buffer */
+  unsigned int i;
+  for (i = 0; i < occurences; i++)
+    strncpy(seed + (i * length), passphrase, length);
+
+  /* Initialize the deterministic random generator */
+  if (dRAND_init() != 1)
+  {
+    printf("[error] unable to initialize the random generator\n");
+    return (1);
+  }
+
+  /* Generate the RSA key */
+  RSA* rsa = NULL;
+
+  if ((rsa = dRSA_deduce_privatekey(bits, seed, size)) == NULL)
+  {
+    printf("[error] unable to generate the RSA key pair\n");
+    return (1);
+  }
+
+  /* Display the RSA components */
+  RSA_print_fp(stdout, rsa, 0);
+
+  /* Clean the resources */
+  if (dRAND_clean() != 1)
+  {
+    printf("[error] unable to clean the random generator\n");
+    return (1);
+  }
+
+  return (0);
+}