1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2013, Google Inc.
8 #include <fdt_support.h>
10 #include <linux/libfdt.h>
15 DECLARE_GLOBAL_DATA_PTR;
16 #endif /* !USE_HOSTCC*/
18 #include <u-boot/rsa.h>
19 #include <u-boot/rsa-checksum.h>
21 #define IMAGE_MAX_HASHED_NODES 100
23 struct checksum_algo checksum_algos[] = {
26 .checksum_len = SHA1_SUM_LEN,
27 .der_len = SHA1_DER_LEN,
28 .der_prefix = sha1_der_prefix,
30 .calculate_sign = EVP_sha1,
32 .calculate = hash_calculate,
36 .checksum_len = SHA256_SUM_LEN,
37 .der_len = SHA256_DER_LEN,
38 .der_prefix = sha256_der_prefix,
40 .calculate_sign = EVP_sha256,
42 .calculate = hash_calculate,
47 struct crypto_algo crypto_algos[] = {
50 .key_len = RSA2048_BYTES,
52 .add_verify_data = rsa_add_verify_data,
57 .key_len = RSA4096_BYTES,
59 .add_verify_data = rsa_add_verify_data,
65 struct padding_algo padding_algos[] = {
68 .verify = padding_pkcs_15_verify,
70 #ifdef CONFIG_FIT_ENABLE_RSASSA_PSS_SUPPORT
73 .verify = padding_pss_verify,
75 #endif /* CONFIG_FIT_ENABLE_RSASSA_PSS_SUPPORT */
78 struct checksum_algo *image_get_checksum_algo(const char *full_name)
83 #if !defined(USE_HOSTCC) && defined(CONFIG_NEEDS_MANUAL_RELOC)
88 for (i = 0; i < ARRAY_SIZE(checksum_algos); i++) {
89 checksum_algos[i].name += gd->reloc_off;
91 checksum_algos[i].calculate_sign += gd->reloc_off;
93 checksum_algos[i].calculate += gd->reloc_off;
98 for (i = 0; i < ARRAY_SIZE(checksum_algos); i++) {
99 name = checksum_algos[i].name;
100 /* Make sure names match and next char is a comma */
101 if (!strncmp(name, full_name, strlen(name)) &&
102 full_name[strlen(name)] == ',')
103 return &checksum_algos[i];
109 struct crypto_algo *image_get_crypto_algo(const char *full_name)
114 #if !defined(USE_HOSTCC) && defined(CONFIG_NEEDS_MANUAL_RELOC)
119 for (i = 0; i < ARRAY_SIZE(crypto_algos); i++) {
120 crypto_algos[i].name += gd->reloc_off;
121 crypto_algos[i].sign += gd->reloc_off;
122 crypto_algos[i].add_verify_data += gd->reloc_off;
123 crypto_algos[i].verify += gd->reloc_off;
128 /* Move name to after the comma */
129 name = strchr(full_name, ',');
134 for (i = 0; i < ARRAY_SIZE(crypto_algos); i++) {
135 if (!strcmp(crypto_algos[i].name, name))
136 return &crypto_algos[i];
142 struct padding_algo *image_get_padding_algo(const char *name)
149 for (i = 0; i < ARRAY_SIZE(padding_algos); i++) {
150 if (!strcmp(padding_algos[i].name, name))
151 return &padding_algos[i];