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@@ -0,0 +1,39 @@
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+/* SPDX-License-Identifier: GPL-2.0+ */
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+/*
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+ * Copyright (c) 2020, Alexandru Gagniuc <mr.nuke.me@gmail.com>
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+ */
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+
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+#include <dm/device.h>
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+
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+/**
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+ * struct ecdsa_public_key - ECDSA public key properties
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+ *
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+ * The struct has pointers to the (x, y) curve coordinates to an ECDSA public
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+ * key, as well as the name of the ECDSA curve. The size of the key is inferred
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+ * from the 'curve_name'
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+ */
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+struct ecdsa_public_key {
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+ const char *curve_name; /* Name of curve, e.g. "prime256v1" */
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+ const void *x; /* x coordinate of public key */
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+ const void *y; /* y coordinate of public key */
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+ unsigned int size_bits; /* key size in bits, derived from curve name */
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+};
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+
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+struct ecdsa_ops {
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+ /**
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+ * Verify signature of hash against given public key
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+ *
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+ * @dev: ECDSA Device
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+ * @pubkey: ECDSA public key
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+ * @hash: Hash of binary image
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+ * @hash_len: Length of hash in bytes
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+ * @signature: Signature in a raw (R, S) point pair
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+ * @sig_len: Length of signature in bytes
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+ *
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+ * This function verifies that the 'signature' of the given 'hash' was
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+ * signed by the private key corresponding to 'pubkey'.
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+ */
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+ int (*verify)(struct udevice *dev, const struct ecdsa_public_key *pubkey,
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+ const void *hash, size_t hash_len,
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+ const void *signature, size_t sig_len);
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+};
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