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Code Issues Releases Activity

keys: Dump partial AES keys even if 0 titlekeys

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shchmue 2021-01-05 15:24:54 -07:00
parent 557aa84e2c
commit b77d42e8e3
1 changed files with 8 additions and 7 deletions
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15
source/keys/keys.c
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@ -259,7 +259,7 @@ static void _derive_master_keys_post_620(u32 pkg1_kb, key_derivation_ctx_t *keys
memset(keys->master_key[kb], 0, AES_128_KEY_SIZE);
}
if (_key_exists(keys->temp_key)) {
EPRINTFARGS("Unable to derive master key. kb = %d.\n Check sept files on SD and retry.", pkg1_kb);
EPRINTFARGS("Unable to derive master key. kb = %d.", pkg1_kb);
memset(keys->master_key, 0, sizeof(keys->master_key));
}
}
@ -576,7 +576,6 @@ static bool _derive_titlekeys(key_derivation_ctx_t *keys, titlekey_buffer_t *tit
gfx_printf("%kTitlekeys... \n", colors[(color_idx++) % 6]);
u32 buf_size = 0x4000;
rsa_keypair_t rsa_keypair = {0};
if (!emummc_storage_read(&emmc_storage, NX_EMMC_CALIBRATION_OFFSET / NX_EMMC_BLOCKSIZE, NX_EMMC_CALIBRATION_SIZE / NX_EMMC_BLOCKSIZE, titlekey_buffer->read_buffer)) {
@ -624,6 +623,7 @@ static bool _derive_titlekeys(key_derivation_ctx_t *keys, titlekey_buffer_t *tit
se_rsa_key_set(0, rsa_keypair.modulus, sizeof(rsa_keypair.modulus), rsa_keypair.private_exponent, sizeof(rsa_keypair.private_exponent));
const u32 buf_size = 0x4000;
_get_titlekeys_from_save(buf_size, keys->save_mac_key, titlekey_buffer, NULL);
_get_titlekeys_from_save(buf_size, keys->save_mac_key, titlekey_buffer, &rsa_keypair);
@ -708,6 +708,7 @@ static void _save_mariko_partial_keys(char *text_buffer) {
}
free(data);
sd_save_to_file(text_buffer, strlen(text_buffer), "sd:/switch/partialaes.keys");
gfx_printf("%kWrote partials to sd:/switch/partialaes.keys\n", colors[(color_idx++) % 6]);
}
static void _save_keys_to_sd(key_derivation_ctx_t *keys, titlekey_buffer_t *titlekey_buffer, const pkg1_id_t *pkg1_id, u32 start_whole_operation_time, u32 derivable_key_count) {
@ -796,6 +797,11 @@ static void _save_keys_to_sd(key_derivation_ctx_t *keys, titlekey_buffer_t *titl
} else
EPRINTF("Unable to save keys to SD.");
if (h_cfg.t210b01) {
memset(text_buffer, 0, text_buffer_size);
_save_mariko_partial_keys(text_buffer);
}
if (_titlekey_count == 0) {
free(text_buffer);
return;
@ -818,11 +824,6 @@ static void _save_keys_to_sd(key_derivation_ctx_t *keys, titlekey_buffer_t *titl
} else
EPRINTF("Unable to save titlekeys to SD.");
if (h_cfg.t210b01) {
memset(text_buffer, 0, text_buffer_size);
_save_mariko_partial_keys(text_buffer);
}
free(text_buffer);
}