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path: root/Modules/_blake2/impl/blake2b.c
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Diffstat (limited to 'Modules/_blake2/impl/blake2b.c')
-rw-r--r--Modules/_blake2/impl/blake2b.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/Modules/_blake2/impl/blake2b.c b/Modules/_blake2/impl/blake2b.c
index 58c79fa848..ebb65bb139 100644
--- a/Modules/_blake2/impl/blake2b.c
+++ b/Modules/_blake2/impl/blake2b.c
@@ -371,7 +371,7 @@ int blake2b_final( blake2b_state *S, uint8_t *out, uint8_t outlen )
blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
blake2b_compress( S, S->buf );
S->buflen -= BLAKE2B_BLOCKBYTES;
- memcpy( S->buf, S->buf + BLAKE2B_BLOCKBYTES, S->buflen );
+ memmove( S->buf, S->buf + BLAKE2B_BLOCKBYTES, S->buflen );
}
blake2b_increment_counter( S, S->buflen );