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| author | Andrew Bartlett <abartlet@samba.org> | 2009-11-13 10:51:14 +1100 |
|---|---|---|
| committer | Andrew Bartlett <abartlet@samba.org> | 2009-11-13 23:19:05 +1100 |
| commit | 4f8ba5ad6ac9b7153b0e13654e59f47e67b3f608 (patch) | |
| tree | ca189d440b0a298cdcb3769d994828508dcd2e76 /source4/heimdal/lib/krb5/generate_seq_number.c | |
| parent | 5bc87c14a1f5b45ed86e7ff9663f5f0aa2f70094 (diff) | |
| download | samba-4f8ba5ad6ac9b7153b0e13654e59f47e67b3f608.tar.gz samba-4f8ba5ad6ac9b7153b0e13654e59f47e67b3f608.tar.bz2 samba-4f8ba5ad6ac9b7153b0e13654e59f47e67b3f608.zip | |
s4:heimdal: import lorikeet-heimdal-200911122202 (commit 9291fd2d101f3eecec550178634faa94ead3e9a1)
Diffstat (limited to 'source4/heimdal/lib/krb5/generate_seq_number.c')
| -rw-r--r-- | source4/heimdal/lib/krb5/generate_seq_number.c | 24 |
1 files changed, 6 insertions, 18 deletions
diff --git a/source4/heimdal/lib/krb5/generate_seq_number.c b/source4/heimdal/lib/krb5/generate_seq_number.c index 2764f1a914..b7bd8b99f8 100644 --- a/source4/heimdal/lib/krb5/generate_seq_number.c +++ b/source4/heimdal/lib/krb5/generate_seq_number.c @@ -38,23 +38,11 @@ krb5_generate_seq_number(krb5_context context, const krb5_keyblock *key, uint32_t *seqno) { - krb5_error_code ret; - krb5_keyblock *subkey; - uint32_t q; - u_char *p; - int i; - - ret = krb5_generate_subkey (context, key, &subkey); - if (ret) - return ret; - - q = 0; - for (p = (u_char *)subkey->keyvalue.data, i = 0; - i < subkey->keyvalue.length; - ++i, ++p) - q = (q << 8) | *p; - q &= 0xffffffff; - *seqno = q; - krb5_free_keyblock (context, subkey); + if (RAND_bytes((void *)seqno, sizeof(*seqno)) != 1) + krb5_abortx(context, "Failed to generate random block"); + /* MIT used signed numbers, lets not stomp into that space directly */ + *seqno &= 0x3fffffff; + if (*seqno == 0) + *seqno = 1; return 0; } |