Mercurial > hg > quicktun

annotate src/randombytes.c @ 66:9499cbd71871

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added tag V2.2.5 for changeset e0bd3a4993c2
author Ivo Smits <Ivo@UCIS.nl>
date Tue, 24 Jan 2017 22:02:33 +0100
parents fa53d1c54886
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
64
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
1 /*
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
2 randombytes/devurandom.h version 20080713
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
3 D. J. Bernstein
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
4 Public domain.
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
5 */
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
6
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
7 #include <sys/types.h>
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
8 #include <sys/stat.h>
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
9 #include <fcntl.h>
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
10 #include <unistd.h>
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
11
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
12 static int fd = -1;
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
13
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
14 void randombytes(unsigned char *x,unsigned long long xlen) {
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
15 int i;
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
16
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
17 if (fd == -1) {
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
18 for (;;) {
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
19 fd = open("/dev/urandom",O_RDONLY);
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
20 if (fd != -1) break;
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
21 sleep(1);
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
22 }
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
23 }
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
24
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
25 while (xlen > 0) {
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
26 if (xlen < 1048576) i = xlen; else i = 1048576;
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
27
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
28 i = read(fd,x,i);
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
29 if (i < 1) {
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
30 sleep(1);
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
31 continue;
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
32 }
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
33
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
34 x += i;
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
35 xlen -= i;
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
36 }
fa53d1c54886 Use default RNG for key generation, added options to generate public key from private key, use bundled tweetnacl as fallback instead of nacl download
Ivo Smits <Ivo@UFO-Net.nl>
parents:
diff changeset
37 }