2 files changed, 25 insertions, 0 deletions
diff --git a/src/crypto/axtls_aes.c b/src/crypto/axtls_aes.c
index a587c5cb7..ac7e921d0 100644
--- a/src/crypto/axtls_aes.c
+++ b/src/crypto/axtls_aes.c
@@ -1,5 +1,6 @@
 #include "crypto/axtls/crypto.h"
 #include <string.h>
+#include <errno.h>
 #include <gpxe/crypto.h>
 #include <gpxe/aes.h>
 
diff --git a/src/crypto/cipher.c b/src/crypto/cipher.c
new file mode 100644
index 000000000..9c392009a
--- /dev/null
+++ b/src/crypto/cipher.c
@@ -0,0 +1,24 @@
+#include <stdint.h>
+#include <errno.h>
+#include <gpxe/crypto.h>
+
+int cipher_encrypt ( struct crypto_algorithm *crypto,
+		     void *ctx, const void *src, void *dst,
+		     size_t len ) {
+	if ( ( len & ( crypto->blocksize - 1 ) ) ) {
+		return -EINVAL;
+	}
+	crypto->encode ( ctx, src, dst, len );
+	return 0;
+}
+
+int cipher_decrypt ( struct crypto_algorithm *crypto,
+		     void *ctx, const void *src, void *dst,
+		     size_t len ) {
+	if ( ( len & ( crypto->blocksize - 1 ) ) ) {
+		return -EINVAL;
+	}
+	crypto->decode ( ctx, src, dst, len );
+	return 0;
+}
+