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-rw-r--r--src/crypto/include/zinc/chacha20.h1
-rw-r--r--src/crypto/zinc/chacha20/chacha20.c4
2 files changed, 3 insertions, 2 deletions
diff --git a/src/crypto/include/zinc/chacha20.h b/src/crypto/include/zinc/chacha20.h
index d09afbc..3c2c2f7 100644
--- a/src/crypto/include/zinc/chacha20.h
+++ b/src/crypto/include/zinc/chacha20.h
@@ -15,6 +15,7 @@ enum {
CHACHA20_IV_SIZE = 16,
CHACHA20_KEY_SIZE = 32,
CHACHA20_BLOCK_SIZE = 64,
+ CHACHA20_BLOCK_WORDS = CHACHA20_BLOCK_SIZE / sizeof(u32),
HCHACHA20_KEY_SIZE = 32,
HCHACHA20_NONCE_SIZE = 16
};
diff --git a/src/crypto/zinc/chacha20/chacha20.c b/src/crypto/zinc/chacha20/chacha20.c
index ab5ef07..1d9168e 100644
--- a/src/crypto/zinc/chacha20/chacha20.c
+++ b/src/crypto/zinc/chacha20/chacha20.c
@@ -72,7 +72,7 @@ static inline bool hchacha20_arch(u8 *derived_key, const u8 *nonce,
static void chacha20_block_generic(__le32 *stream, u32 *state)
{
- u32 x[CHACHA20_BLOCK_SIZE / sizeof(u32)];
+ u32 x[CHACHA20_BLOCK_WORDS];
int i;
for (i = 0; i < ARRAY_SIZE(x); ++i)
@@ -89,7 +89,7 @@ static void chacha20_block_generic(__le32 *stream, u32 *state)
static void chacha20_generic(u8 *out, const u8 *in, u32 len, const u32 key[8],
const u32 counter[4])
{
- __le32 buf[CHACHA20_BLOCK_SIZE / sizeof(__le32)];
+ __le32 buf[CHACHA20_BLOCK_WORDS];
u32 x[] = {
EXPAND_32_BYTE_K,
key[0], key[1], key[2], key[3],