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authorlloyd <[email protected]>2007-10-15 15:17:43 +0000
committerlloyd <[email protected]>2007-10-15 15:17:43 +0000
commit77afd52c616f50f5213b24f9b2df0d27e61c95f2 (patch)
tree114e3739ed1995c82a5ce17090584c2d78c6ae23
parentd01947a8935ef34ee365958f5f91256fe72c3ff3 (diff)
Truncate the X9.42 PRF output if the counter overflows.
-rw-r--r--src/prf_x942.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/prf_x942.cpp b/src/prf_x942.cpp
index fd29aecdd..99f223107 100644
--- a/src/prf_x942.cpp
+++ b/src/prf_x942.cpp
@@ -40,7 +40,7 @@ SecureVector<byte> X942_PRF::derive(u32bit key_len,
SecureVector<byte> key;
u32bit counter = 1;
- while(key.size() != key_len)
+ while(key.size() != key_len && counter)
{
hash->update(secret, secret_len);