1 files changed, 3 insertions, 3 deletions

diff --git a/sys/dev/random/hash.c b/sys/dev/random/hash.c
index 7deee8781917..844e423422a3 100644
--- a/sys/dev/random/hash.c
+++ b/sys/dev/random/hash.c
@@ -60,7 +60,7 @@ randomdev_hash_init(struct randomdev_hash *context)
 
 /* Iterate the hash */
 void
-randomdev_hash_iterate(struct randomdev_hash *context, void *data, size_t size)
+randomdev_hash_iterate(struct randomdev_hash *context, const void *data, size_t size)
 {
 
 	SHA256_Update(&context->sha, data, size);
@@ -81,7 +81,7 @@ randomdev_hash_finish(struct randomdev_hash *context, void *buf)
  * data. Use CBC mode for better avalanche.
  */
 void
-randomdev_encrypt_init(struct randomdev_key *context, void *data)
+randomdev_encrypt_init(struct randomdev_key *context, const void *data)
 {
 
 	rijndael_cipherInit(&context->cipher, MODE_CBC, NULL);
@@ -93,7 +93,7 @@ randomdev_encrypt_init(struct randomdev_key *context, void *data)
  * a multiple of BLOCKSIZE.
  */
 void
-randomdev_encrypt(struct randomdev_key *context, void *d_in, void *d_out, u_int length)
+randomdev_encrypt(struct randomdev_key *context, const void *d_in, void *d_out, u_int length)
 {
 
 	rijndael_blockEncrypt(&context->cipher, &context->key, d_in, length*8, d_out);