1 files changed, 60 insertions, 0 deletions
diff --git a/providers/implementations/ciphers/cipher_aes_ccm_hw_rv32i.inc b/providers/implementations/ciphers/cipher_aes_ccm_hw_rv32i.inc
new file mode 100644
index 0000000000..a09a1e8dd8
--- /dev/null
+++ b/providers/implementations/ciphers/cipher_aes_ccm_hw_rv32i.inc
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2022 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*-
+ * RISC-V 32 ZKND ZKNE support for AES CCM.
+ * This file is included by cipher_aes_ccm_hw.c
+ */
+
+static int ccm_rv32i_zknd_zkne_initkey(PROV_CCM_CTX *ctx, const unsigned char *key,
+                                       size_t keylen)
+{
+    PROV_AES_CCM_CTX *actx = (PROV_AES_CCM_CTX *)ctx;
+
+    AES_HW_CCM_SET_KEY_FN(rv32i_zkne_set_encrypt_key, rv32i_zkne_encrypt,
+                          NULL, NULL);
+    return 1;
+}
+
+static int ccm_rv32i_zbkb_zknd_zkne_initkey(PROV_CCM_CTX *ctx, const unsigned char *key,
+                                            size_t keylen)
+{
+    PROV_AES_CCM_CTX *actx = (PROV_AES_CCM_CTX *)ctx;
+
+    AES_HW_CCM_SET_KEY_FN(rv32i_zbkb_zkne_set_encrypt_key, rv32i_zkne_encrypt,
+                          NULL, NULL);
+    return 1;
+}
+
+static const PROV_CCM_HW rv32i_zknd_zkne_ccm = {
+    ccm_rv32i_zknd_zkne_initkey,
+    ossl_ccm_generic_setiv,
+    ossl_ccm_generic_setaad,
+    ossl_ccm_generic_auth_encrypt,
+    ossl_ccm_generic_auth_decrypt,
+    ossl_ccm_generic_gettag
+};
+
+static const PROV_CCM_HW rv32i_zbkb_zknd_zkne_ccm = {
+    ccm_rv32i_zbkb_zknd_zkne_initkey,
+    ossl_ccm_generic_setiv,
+    ossl_ccm_generic_setaad,
+    ossl_ccm_generic_auth_encrypt,
+    ossl_ccm_generic_auth_decrypt,
+    ossl_ccm_generic_gettag
+};
+
+const PROV_CCM_HW *ossl_prov_aes_hw_ccm(size_t keybits)
+{
+    if (RISCV_HAS_ZBKB_AND_ZKND_AND_ZKNE())
+        return &rv32i_zbkb_zknd_zkne_ccm;
+    if (RISCV_HAS_ZKND_AND_ZKNE())
+        return &rv32i_zknd_zkne_ccm;
+    return &aes_ccm;
+}