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-rw-r--r--libblake_blake2b_digest_get_required_input_size.c2
-rw-r--r--libblake_blake2s_digest_get_required_input_size.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/libblake_blake2b_digest_get_required_input_size.c b/libblake_blake2b_digest_get_required_input_size.c
index 12288df..b4358c1 100644
--- a/libblake_blake2b_digest_get_required_input_size.c
+++ b/libblake_blake2b_digest_get_required_input_size.c
@@ -7,7 +7,7 @@ libblake_blake2b_digest_get_required_input_size(size_t len)
size_t blocks, rem;
blocks = len >> 7;
rem = len & 127;
- if (rem)
+ if (rem || !blocks)
blocks += 1;
return blocks << 7;
}
diff --git a/libblake_blake2s_digest_get_required_input_size.c b/libblake_blake2s_digest_get_required_input_size.c
index c356822..f5f45cd 100644
--- a/libblake_blake2s_digest_get_required_input_size.c
+++ b/libblake_blake2s_digest_get_required_input_size.c
@@ -7,7 +7,7 @@ libblake_blake2s_digest_get_required_input_size(size_t len)
size_t blocks, rem;
blocks = len >> 6;
rem = len & 63;
- if (rem)
+ if (rem || !blocks)
blocks += 1;
return blocks << 6;
}