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/dev/random blocks on busy servers too.

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This commit is contained in:
Matt Johnston 2012-07-19 21:34:27 +08:00
parent 6ba2b2b384
commit 545de7a3a1
4 changed files with 0 additions and 21 deletions
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1
gendss.c
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@ -57,7 +57,6 @@ dropbear_dss_key * gen_dss_priv_key(unsigned int size) {
m_mp_init_multi(key->p, key->q, key->g, key->y, key->x, NULL); m_mp_init_multi(key->p, key->q, key->g, key->y, key->x, NULL);
seedrandom(); seedrandom();
seedstrongrandom();
getq(key); getq(key);
getp(key, size); getp(key, size);

1
genrsa.c
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@ -56,7 +56,6 @@ dropbear_rsa_key * gen_rsa_priv_key(unsigned int size) {
&pminus, &lcm, &qminus, NULL); &pminus, &lcm, &qminus, NULL);
seedrandom(); seedrandom();
seedstrongrandom();
if (mp_set_int(key->e, RSA_E) != MP_OKAY) { if (mp_set_int(key->e, RSA_E) != MP_OKAY) {
fprintf(stderr, "RSA generation failed\n"); fprintf(stderr, "RSA generation failed\n");

18
random.c
View File

@ -155,24 +155,6 @@ static void write_urandom()
#endif #endif
} }
/* add entropy from the stronger, blocking source /dev/random. Only used
* for generating persistent private keys (RSA and DSS) */
void seedstrongrandom()
{
/* We assume that PRNGD is a strong source, so don't need to do anything here */
#ifndef DROPBEAR_PRNGD_SOCKET
hash_state hs;
sha1_process(&hs, (void*)hashpool, sizeof(hashpool));
if (process_file(&hs, "/dev/random", INIT_SEED_SIZE, 0)
!= DROPBEAR_SUCCESS) {
dropbear_exit("Failure reading random device %s", "/dev/random");
}
sha1_done(&hs, hashpool);
#endif
}
/* Initialise the prng from /dev/urandom or prngd. This function can /* Initialise the prng from /dev/urandom or prngd. This function can
* be called multiple times */ * be called multiple times */
void seedrandom() { void seedrandom() {

1
random.h
View File

@ -27,7 +27,6 @@
struct mp_int; struct mp_int;
void seedstrongrandom();
void seedrandom(); void seedrandom();
void genrandom(unsigned char* buf, unsigned int len); void genrandom(unsigned char* buf, unsigned int len);
void addrandom(char * buf, unsigned int len); void addrandom(char * buf, unsigned int len);