1 files changed, 55 insertions, 0 deletions
diff --git a/include/drivers/arm/cryptocell/rsa.h b/include/drivers/arm/cryptocell/rsa.h
new file mode 100644
index 00000000..cd9925b3
--- /dev/null
+++ b/include/drivers/arm/cryptocell/rsa.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef RSA_H
+#define RSA_H
+
+/*
+ * All the includes that are needed for code using this module to
+ * compile correctly should be #included here.
+ */
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include "cc_pal_types.h"
+
+/************************ Defines ******************************/
+
+/* the modulus size ion bits */
+#define RSA_MOD_SIZE_IN_BITS				2048UL
+#define RSA_MOD_SIZE_IN_BYTES				(CALC_FULL_BYTES(RSA_MOD_SIZE_IN_BITS))
+#define RSA_MOD_SIZE_IN_WORDS				(CALC_FULL_32BIT_WORDS(RSA_MOD_SIZE_IN_BITS))
+#define RSA_MOD_SIZE_IN_256BITS				(RSA_MOD_SIZE_IN_WORDS/8)
+#define RSA_EXP_SIZE_IN_BITS				17UL
+#define RSA_EXP_SIZE_IN_BYTES				(CALC_FULL_BYTES(RSA_EXP_SIZE_IN_BITS))
+
+/* size of buffer for Barrett modulus tag NP, used in PKA algorithms */
+#define RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_BITS	132
+#define RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_BYTES	(CALC_FULL_BYTES(RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_BITS))
+#define RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_WORDS	(CALC_FULL_32BIT_WORDS(RSA_HW_PKI_PKA_BARRETT_MOD_TAG_SIZE_IN_BITS))
+
+/*
+ * @brief The RSA_CalcNp calculates Np value and saves it into Np_ptr:
+ *
+ *
+
+ * @param[in] hwBaseAddress -	HW base address. Relevant for HW
+ *				implementation, for SW it is ignored.
+ * @N_ptr[in]               -	The pointer to the modulus buffer.
+ * @Np_ptr[out]             -	pointer to Np vector buffer. Its size must be >= 160.
+ */
+void RSA_CalcNp(unsigned long hwBaseAddress,
+		uint32_t *N_ptr,
+		uint32_t *Np_ptr);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif