1 files changed, 0 insertions, 95 deletions
diff --git a/include/fpsensor_crypto.h b/include/fpsensor_crypto.h
deleted file mode 100644
index b6252b3fd2..0000000000
--- a/include/fpsensor_crypto.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/* Copyright 2019 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-/* Fingerprint sensor crypto operations */
-
-#ifndef __CROS_EC_FPSENSOR_CRYPTO_H
-#define __CROS_EC_FPSENSOR_CRYPTO_H
-
-#include <stddef.h>
-
-#include "sha256.h"
-
-#define HKDF_MAX_INFO_SIZE 128
-#define HKDF_SHA256_MAX_BLOCK_COUNT 255
-
-/**
- * Expand hkdf pseudorandom key |prk| to length |out_key_size|.
- *
- * @param out_key the buffer to hold output key material.
- * @param out_key_size length of output key in bytes. Must be less than
- * or equal to HKDF_SHA256_MAX_BLOCK_COUNT * SHA256_DIGEST_SIZE bytes.
- * @param prk pseudorandom key.
- * @param prk_size length of |prk| in bytes.
- * @param info optional context.
- * @param info_size size of |info| in bytes, must be less than or equal to
- * HKDF_MAX_INFO_SIZE bytes.
- * @return EC_SUCCESS on success and error code otherwise.
- */
-int hkdf_expand(uint8_t *out_key, size_t out_key_size, const uint8_t *prk,
-		size_t prk_size, const uint8_t *info, size_t info_size);
-
-/**
- * Derive hardware encryption key from rollback secret and |salt|.
- *
- * @param outkey the pointer to buffer holding the output key.
- * @param salt the salt to use in HKDF.
- * @return EC_SUCCESS on success and error code otherwise.
- */
-int derive_encryption_key(uint8_t *out_key, const uint8_t *salt);
-
-/**
- * Derive positive match secret from |input_positive_match_salt| and
- * SBP_Src_Key.
- *
- * @param output buffer to store positive match secret, must be at least
- * FP_POSITIVE_MATCH_SECRET_BYTES in size.
- * @param input_positive_match_salt the salt for deriving secret, must be at
- * least FP_POSITIVE_MATCH_SALT_BYTES in size.
- * @return EC_SUCCESS on success and error code otherwise.
- */
-int derive_positive_match_secret(uint8_t *output,
-				 const uint8_t *input_positive_match_salt);
-
-/**
- * Encrypt |plaintext| using AES-GCM128.
- *
- * @param key the key to use in AES.
- * @param key_size the size of |key| in bytes.
- * @param plaintext the plain text to encrypt.
- * @param ciphertext buffer to hold encryption result.
- * @param text_size size of both |plaintext| and output ciphertext in bytes.
- * @param nonce the nonce value to use in GCM128.
- * @param nonce_size the size of |nonce| in bytes.
- * @param tag the tag to hold the authenticator after encryption.
- * @param tag_size the size of |tag|.
- * @return EC_SUCCESS on success and error code otherwise.
- */
-int aes_gcm_encrypt(const uint8_t *key, int key_size,
-		    const uint8_t *plaintext,
-		    uint8_t *ciphertext, int text_size,
-		    const uint8_t *nonce, int nonce_size,
-		    uint8_t *tag, int tag_size);
-
-/**
- * Decrypt |plaintext| using AES-GCM128.
- *
- * @param key the key to use in AES.
- * @param key_size the size of |key| in bytes.
- * @param ciphertext the cipher text to decrypt.
- * @param plaintext buffer to hold decryption result.
- * @param text_size size of both |ciphertext| and output plaintext in bytes.
- * @param nonce the nonce value to use in GCM128.
- * @param nonce_size the size of |nonce| in bytes.
- * @param tag the tag to compare against when decryption finishes.
- * @param tag_size the length of tag to compare against.
- * @return EC_SUCCESS on success and error code otherwise.
- */
-int aes_gcm_decrypt(const uint8_t *key, int key_size, uint8_t *plaintext,
-		    const uint8_t *ciphertext, int text_size,
-		    const uint8_t *nonce, int nonce_size,
-		    const uint8_t *tag, int tag_size);
-
-#endif /* __CROS_EC_FPSENSOR_CRYPTO_H */