feat(st-crypto): add ECDSA signature check with PKA
Add code to be able to use STMicroelectronics PKA peripheral
in the authentication framework.
Change-Id: Ifeafe84c68db483cd18674f2280576cc065f92ee
Signed-off-by: Nicolas Toromanoff <nicolas.toromanoff@st.com>
diff --git a/include/drivers/st/stm32_pka.h b/include/drivers/st/stm32_pka.h
new file mode 100644
index 0000000..ad4690a
--- /dev/null
+++ b/include/drivers/st/stm32_pka.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2022, STMicroelectronics - All Rights Reserved
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef STM32_PKA_H
+#define STM32_PKA_H
+
+#include <stdint.h>
+
+#if !PKA_USE_NIST_P256 && !PKA_USE_BRAINPOOL_P256R1 && !PKA_USE_BRAINPOOL_P256T1 && \
+ !PKA_USE_NIST_P521
+#error "At least one ECDSA curve needs to be selected"
+#endif
+
+enum stm32_pka_ecdsa_curve_id {
+#if PKA_USE_NIST_P256
+ PKA_NIST_P256,
+#endif
+#if PKA_USE_BRAINPOOL_P256R1
+ PKA_BRAINPOOL_P256R1,
+#endif
+#if PKA_USE_BRAINPOOL_P256T1
+ PKA_BRAINPOOL_P256T1,
+#endif
+#if PKA_USE_NIST_P521
+ PKA_NIST_P521,
+#endif
+};
+
+struct stm32_pka_platdata {
+ uintptr_t base;
+ unsigned long clock_id;
+ unsigned int reset_id;
+};
+
+int stm32_pka_init(void);
+int stm32_pka_ecdsa_verif(void *hash, unsigned int hash_size,
+ void *sig_r_ptr, unsigned int sig_r_size,
+ void *sig_s_ptr, unsigned int sig_s_size,
+ void *pk_x_ptr, unsigned int pk_x_size,
+ void *pk_y_ptr, unsigned int pk_y_size,
+ enum stm32_pka_ecdsa_curve_id cid);
+
+#endif /* STM32_PKA_H */