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authorMattias Andrée <maandree@kth.se>2022-01-13 00:15:11 +0100
committerMattias Andrée <maandree@kth.se>2022-01-13 00:15:26 +0100
commit179063dcbd425bf8003a26637a966cb116b3a3d0 (patch)
tree8a8712e379a614bd4bf4423d470773b8fe416e5a /libblake_blake2b_force_update.c
parentAdd BLAKE2X (diff)
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Add *_force_update for BLAKE2[X] (intended for parallel hashing)
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'libblake_blake2b_force_update.c')
-rw-r--r--libblake_blake2b_force_update.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/libblake_blake2b_force_update.c b/libblake_blake2b_force_update.c
new file mode 100644
index 0000000..60b8fab
--- /dev/null
+++ b/libblake_blake2b_force_update.c
@@ -0,0 +1,19 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+size_t
+libblake_blake2b_force_update(struct libblake_blake2b_state *state, const void *data_, size_t len)
+{
+ const unsigned char *data = data_;
+ size_t off = 0;
+
+ for (; len - off >= 128; off += 128) {
+ state->t[0] = (state->t[0] + 128) & UINT_LEAST64_C(0xFFFFffffFFFFffff);
+ if (state->t[0] < 128)
+ state->t[1] = (state->t[1] + 1) & UINT_LEAST64_C(0xFFFFffffFFFFffff);
+
+ libblake_internal_blake2b_compress(state, &data[off]);
+ }
+
+ return off;
+}