#include "rsa.h"
#include "ssh.h"
#include "xmalloc.h"
+#include "random.h"
int rsa_verbose = 1;
+/*
+ * Seed OpenSSL's random number generator
+ */
+void
+seed_rng()
+{
+ char buf[64];
+
+ get_random_bytes(buf, sizeof(buf));
+ RAND_seed(buf, sizeof(buf));
+ memset(buf, 0, sizeof(buf));
+}
+
int
rsa_alive()
{
RSA *key;
+ seed_rng();
key = RSA_generate_key(32, 3, NULL, NULL);
if (key == NULL)
return (0);
return (1);
}
-/* Generates RSA public and private keys. This initializes the data
- structures; they should be freed with rsa_clear_private_key and
- rsa_clear_public_key. */
+/*
+ * Key generation progress meter callback
+ */
+void
+keygen_progress(int p, int n, void *arg)
+{
+ const char progress_chars[] = ".o+O?";
+
+ if ((p < 0) || (p > (sizeof(progress_chars) - 2)))
+ p = sizeof(progress_chars) - 2;
+
+ putchar(progress_chars[p]);
+ fflush(stdout);
+}
+
+/*
+ * Generates RSA public and private keys. This initializes the data
+ * structures; they should be freed with rsa_clear_private_key and
+ * rsa_clear_public_key.
+ */
void
rsa_generate_key(RSA *prv, RSA *pub, unsigned int bits)
{
RSA *key;
+ seed_rng();
+
if (rsa_verbose) {
printf("Generating RSA keys: ");
fflush(stdout);
+ key = RSA_generate_key(bits, 35, keygen_progress, NULL);
+ printf("\n");
+ } else {
+ key = RSA_generate_key(bits, 35, NULL, NULL);
}
- key = RSA_generate_key(bits, 35, NULL, NULL);
if (key == NULL)
fatal("rsa_generate_key: key generation failed.");