blob: d5a08fe37fe7e4f4422730498ea54eb6c142b46d [file] [log] [blame]
/* 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.
#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);