diff options
| author | Niels Provos <provos@cvs.openbsd.org> | 1999-10-16 23:54:13 +0000 |
|---|---|---|
| committer | Niels Provos <provos@cvs.openbsd.org> | 1999-10-16 23:54:13 +0000 |
| commit | 8a15903bf8578c5cd416c109f2ccfbd3584df1b9 (patch) | |
| tree | 5fdd7d455d35219b122789268fa9f3bed8094a2c | |
| parent | a9f2f9114f94aff1ea96b7408df7a11549ac901f (diff) | |
public exponent needs to be odd.
| -rw-r--r-- | usr.bin/ssh/rsa.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/usr.bin/ssh/rsa.c b/usr.bin/ssh/rsa.c index 246e75a174e..f2e5d5f1212 100644 --- a/usr.bin/ssh/rsa.c +++ b/usr.bin/ssh/rsa.c @@ -35,7 +35,7 @@ Description of the RSA algorithm can be found e.g. from the following sources: */ #include "includes.h" -RCSID("$Id: rsa.c,v 1.4 1999/10/16 23:20:25 provos Exp $"); +RCSID("$Id: rsa.c,v 1.5 1999/10/16 23:54:12 provos Exp $"); #include "rsa.h" #include "ssh.h" @@ -112,8 +112,8 @@ rsa_public_encrypt(BIGNUM *out, BIGNUM *in, RSA* key) char *inbuf, *outbuf; int len; - if (BN_num_bits(key->e) < 2) - fatal("rsa_public_encrypt() exponent too small"); + if (BN_num_bits(key->e) < 2 || !BN_is_odd(key->e)) + fatal("rsa_public_encrypt() exponent too small or not odd"); len = BN_num_bytes(key->n); outbuf = xmalloc(len); |