| /* Copyright (c) 2014 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. |
| * |
| * Host-side misc functions for verified boot. |
| */ |
| |
| #ifndef VBOOT_REFERENCE_UTIL_MISC_H_ |
| #define VBOOT_REFERENCE_UTIL_MISC_H_ |
| |
| #include "host_key.h" |
| #include "vboot_struct.h" |
| struct rsa_st; |
| |
| /* Prints the sha1sum of a VbPublicKey to stdout. */ |
| void PrintPubKeySha1Sum(VbPublicKey *key); |
| |
| /* Prints the sha1sum of a VbPrivateKey to stdout. */ |
| void PrintPrivKeySha1Sum(VbPrivateKey *key); |
| |
| /* |
| * Our packed RSBPublicKey buffer (historically in files ending with ".keyb", |
| * but also the part of VbPublicKey and struct vb2_packed_key that is |
| * referenced by .key_offset) has this binary format: |
| * |
| * struct { |
| * uint32_t nwords; // size of RSA key in 32-bit words |
| * uint32_t N0inv; // -1 / N[0] mod 2^32 |
| * uint32_t modulus[nwords]; // modulus as a little endian array |
| * uint32_t R2[nwords]; // R^2 as little endian array |
| * }; |
| * |
| * This function allocates and extracts that binary structure directly |
| * from the RSA private key, rather than from a file. |
| * |
| * @param rsa_private_key RSA private key (duh) |
| * @param keyb_data Pointer to newly allocated binary blob |
| * @param keyb_size Size of newly allocated binary blob |
| * |
| * @return 0 on success, non-zero if unable to allocate enough memory. |
| */ |
| int vb_keyb_from_rsa(struct rsa_st *rsa_private_key, |
| uint8_t **keyb_data, uint32_t *keyb_size); |
| |
| #endif /* VBOOT_REFERENCE_UTIL_MISC_H_ */ |