const-declare the xts_key argument to xts aes encrypt/decrypt message functions.

4 files changed, 15 insertions, 8 deletions

diff --git a/ChangeLog b/ChangeLog
index f1e5537d..fbef1af6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2022-12-05  Niels Möller  <nisse@lysator.liu.se>
+
+	* xts-aes128.c (xts_aes128_encrypt_message)
+	(xts_aes128_decrypt_message): const-declare the xts_key argument.
+	* xts-aes256.c (xts_aes256_encrypt_message)
+	(xts_aes256_decrypt_message): Likewise.
+
 2022-11-09  Niels Möller  <nisse@lysator.liu.se>
 
 	From Mamone Tarsha:
diff --git a/xts-aes128.c b/xts-aes128.c
index 5b447bb9..2e04ad65 100644
--- a/xts-aes128.c
+++ b/xts-aes128.c
@@ -56,7 +56,7 @@ xts_aes128_set_decrypt_key(struct xts_aes128_key *xts_key, const uint8_t *key)
 }
 
 void
-xts_aes128_encrypt_message(struct xts_aes128_key *xts_key,
+xts_aes128_encrypt_message(const struct xts_aes128_key *xts_key,
                            const uint8_t *tweak, size_t length,
                            uint8_t *dst, const uint8_t *src)
 {
@@ -66,7 +66,7 @@ xts_aes128_encrypt_message(struct xts_aes128_key *xts_key,
 }
 
 void
-xts_aes128_decrypt_message(struct xts_aes128_key *xts_key,
+xts_aes128_decrypt_message(const struct xts_aes128_key *xts_key,
                            const uint8_t *tweak, size_t length,
                            uint8_t *dst, const uint8_t *src)
 {
diff --git a/xts-aes256.c b/xts-aes256.c
index 2285b8c8..65502d16 100644
--- a/xts-aes256.c
+++ b/xts-aes256.c
@@ -56,7 +56,7 @@ xts_aes256_set_decrypt_key(struct xts_aes256_key *xts_key, const uint8_t *key)
 }
 
 void
-xts_aes256_encrypt_message(struct xts_aes256_key *xts_key,
+xts_aes256_encrypt_message(const struct xts_aes256_key *xts_key,
                            const uint8_t *tweak, size_t length,
                            uint8_t *dst, const uint8_t *src)
 {
@@ -66,7 +66,7 @@ xts_aes256_encrypt_message(struct xts_aes256_key *xts_key,
 }
 
 void
-xts_aes256_decrypt_message(struct xts_aes256_key *xts_key,
+xts_aes256_decrypt_message(const struct xts_aes256_key *xts_key,
                            const uint8_t *tweak, size_t length,
                            uint8_t *dst, const uint8_t *src)
 {
diff --git a/xts.h b/xts.h
index db906a2a..904ba760 100644
--- a/xts.h
+++ b/xts.h
@@ -83,12 +83,12 @@ xts_aes128_set_decrypt_key(struct xts_aes128_key *xts_key,
                            const uint8_t *key);
 
 void
-xts_aes128_encrypt_message(struct xts_aes128_key *xtskey,
+xts_aes128_encrypt_message(const struct xts_aes128_key *xtskey,
                            const uint8_t *tweak, size_t length,
                            uint8_t *dst, const uint8_t *src);
 
 void
-xts_aes128_decrypt_message(struct xts_aes128_key *xts_key,
+xts_aes128_decrypt_message(const struct xts_aes128_key *xts_key,
                            const uint8_t *tweak, size_t length,
                            uint8_t *dst, const uint8_t *src);
 
@@ -107,12 +107,12 @@ xts_aes256_set_decrypt_key(struct xts_aes256_key *xts_key,
                            const uint8_t *key);
 
 void
-xts_aes256_encrypt_message(struct xts_aes256_key *xts_key,
+xts_aes256_encrypt_message(const struct xts_aes256_key *xts_key,
                            const uint8_t *tweak, size_t length,
                            uint8_t *dst, const uint8_t *src);
 
 void
-xts_aes256_decrypt_message(struct xts_aes256_key *xts_key,
+xts_aes256_decrypt_message(const struct xts_aes256_key *xts_key,
                            const uint8_t *tweak, size_t length,
                            uint8_t *dst, const uint8_t *src);