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-rw-r--r--libkeccak_state_wipe_message.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libkeccak_state_wipe_message.c b/libkeccak_state_wipe_message.c
index 115320e..026bc8e 100644
--- a/libkeccak_state_wipe_message.c
+++ b/libkeccak_state_wipe_message.c
@@ -10,8 +10,9 @@
void
libkeccak_state_wipe_message(volatile struct libkeccak_state *restrict state)
{
- volatile char *restrict M = state->M;
+ volatile unsigned char *restrict M = state->M;
size_t i;
+
for (i = 0; i < state->mptr; i++)
M[i] = 0;
}