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-rw-r--r--hal.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/hal.h b/hal.h
index 8b731d4..9e7bd67 100644
--- a/hal.h
+++ b/hal.h
@@ -446,6 +446,7 @@
DEFINE_HAL_ERROR(HAL_ERROR_ALLOCATION_FAILURE, "Memory allocation failed") \
DEFINE_HAL_ERROR(HAL_ERROR_RESULT_TOO_LONG, "Result too long for buffer") \
DEFINE_HAL_ERROR(HAL_ERROR_ASN1_PARSE_FAILED, "ASN.1 parse failed") \
+ DEFINE_HAL_ERROR(HAL_ERROR_KEY_NOT_ON_CURVE, "EC key is not on its purported curve") \
END_OF_HAL_ERROR_LIST
/* Marker to forestall silly line continuation errors */
@@ -671,6 +672,67 @@ extern hal_error_t hal_rsa_key_from_der(hal_rsa_key_t *key,
void *keybuf, const size_t keybuf_len,
const uint8_t * const der, const size_t der_len);
+/*
+ * ECDSA.
+ */
+
+typedef enum { HAL_ECDSA_PRIVATE, HAL_ECDSA_PUBLIC } hal_ecdsa_key_type_t;
+
+typedef enum { HAL_ECDSA_CURVE_P256, HAL_ECDSA_CURVE_P384, HAL_ECDSA_CURVE_P521 } hal_ecdsa_curve_t;
+
+typedef struct hal_ecdsa_key hal_ecdsa_key_t;
+
+extern const size_t hal_ecdsa_key_t_size;
+
+extern void hal_ecdsa_set_debug(const int onoff);
+
+extern hal_error_t hal_ecdsa_key_load_private(hal_ecdsa_key_t **key,
+ void *keybuf, const size_t keybuf_len,
+ const hal_ecdsa_curve_t curve,
+ const uint8_t * const x, const size_t x_len,
+ const uint8_t * const y, const size_t y_len,
+ const uint8_t * const d, const size_t d_len);
+
+extern hal_error_t hal_ecdsa_key_load_public(hal_ecdsa_key_t **key,
+ void *keybuf, const size_t keybuf_len,
+ const hal_ecdsa_curve_t curve,
+ const uint8_t * const x, const size_t x_len,
+ const uint8_t * const y, const size_t y_len);
+
+extern hal_error_t hal_ecdsa_key_get_type(const hal_ecdsa_key_t * const key,
+ hal_ecdsa_key_type_t *key_type);
+
+extern hal_error_t hal_ecdsa_key_get_curve(const hal_ecdsa_key_t * const key,
+ hal_ecdsa_curve_t *curve);
+
+extern hal_error_t hal_ecdsa_key_get_public(const hal_ecdsa_key_t * const key,
+ uint8_t *x, size_t *x_len, const size_t x_max,
+ uint8_t *y, size_t *y_len, const size_t y_max);
+
+extern void hal_ecdsa_key_clear(hal_ecdsa_key_t *key);
+
+extern hal_error_t hal_ecdsa_sign(const hal_ecdsa_key_t * const key,
+ const hal_hash_descriptor_t * const hash_descriptor,
+ const uint8_t * const input, const size_t input_len,
+ uint8_t *output, size_t *output_len, const size_t output_max);
+
+extern hal_error_t hal_ecdsa_verify(const hal_ecdsa_key_t * const key,
+ const hal_hash_descriptor_t * const hash_descriptor,
+ const uint8_t * const input, const size_t input_len);
+
+extern hal_error_t hal_ecdsa_key_gen(hal_ecdsa_key_t **key,
+ void *keybuf, const size_t keybuf_len,
+ const hal_ecdsa_curve_t curve);
+
+extern hal_error_t hal_ecdsa_key_to_der(const hal_ecdsa_key_t * const key,
+ uint8_t *der, size_t *der_len, const size_t der_max);
+
+extern size_t hal_ecdsa_key_to_der_len(const hal_ecdsa_key_t * const key);
+
+extern hal_error_t hal_ecdsa_key_from_der(hal_ecdsa_key_t **key,
+ void *keybuf, const size_t keybuf_len,
+ const uint8_t * const der, const size_t der_len);
+
#endif /* _HAL_H_ */
/*