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https://github.com/CTCaer/hekate
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se: Ensure aligned key/iv/ctr/hash copy
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CTCaer
parent
4a152504cb
commit
8249d9e1a2
3 changed files with 42 additions and 22 deletions
56
bdk/sec/se.c
56
bdk/sec/se.c
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@ -21,6 +21,7 @@
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#include "se_t210.h"
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#include <mem/heap.h>
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#include <soc/bpmp.h>
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#include <soc/pmc.h>
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#include <soc/t210.h>
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#include <utils/util.h>
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@ -160,9 +161,11 @@ static int _se_execute_one_block(u32 op, void *dst, u32 dst_size, const void *sr
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static void _se_aes_ctr_set(void *ctr)
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{
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u32 *data = (u32 *)ctr;
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for (u32 i = 0; i < 4; i++)
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SE(SE_CRYPTO_CTR_REG_OFFSET + 4 * i) = data[i];
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u32 data[TEGRA_SE_AES_BLOCK_SIZE / 4];
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memcpy(data, ctr, TEGRA_SE_AES_BLOCK_SIZE);
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for (u32 i = 0; i < (TEGRA_SE_AES_BLOCK_SIZE / 4); i++)
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SE(SE_CRYPTO_CTR_REG_OFFSET + (4 * i)) = data[i];
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}
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void se_rsa_acc_ctrl(u32 rs, u32 flags)
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@ -190,8 +193,10 @@ u32 se_key_acc_ctrl_get(u32 ks)
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void se_aes_key_set(u32 ks, void *key, u32 size)
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{
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u32 *data = (u32 *)key;
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for (u32 i = 0; i < size / 4; i++)
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u32 data[TEGRA_SE_AES_MAX_KEY_SIZE / 4];
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memcpy(data, key, size);
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for (u32 i = 0; i < (size / 4); i++)
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{
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SE(SE_KEYTABLE_REG_OFFSET) = SE_KEYTABLE_SLOT(ks) | i;
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SE(SE_KEYTABLE_DATA0_REG_OFFSET) = data[i];
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@ -200,9 +205,10 @@ void se_aes_key_set(u32 ks, void *key, u32 size)
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void se_aes_iv_set(u32 ks, void *iv)
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{
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u32 *data = (u32 *)iv;
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u32 data[TEGRA_SE_AES_BLOCK_SIZE / 4];
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memcpy(data, iv, TEGRA_SE_AES_BLOCK_SIZE);
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for (u32 i = 0; i < TEGRA_SE_AES_MIN_KEY_SIZE / 4; i++)
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for (u32 i = 0; i < (TEGRA_SE_AES_BLOCK_SIZE / 4); i++)
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{
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SE(SE_KEYTABLE_REG_OFFSET) = SE_KEYTABLE_SLOT(ks) | SE_KEYTABLE_QUAD(QUAD_ORG_IV) | i;
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SE(SE_KEYTABLE_DATA0_REG_OFFSET) = data[i];
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@ -211,17 +217,20 @@ void se_aes_iv_set(u32 ks, void *iv)
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void se_aes_key_get(u32 ks, void *key, u32 size)
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{
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u32 *data = (u32 *)key;
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for (u32 i = 0; i < size / 4; i++)
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u32 data[TEGRA_SE_AES_MAX_KEY_SIZE / 4];
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for (u32 i = 0; i < (size / 4); i++)
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{
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SE(SE_KEYTABLE_REG_OFFSET) = SE_KEYTABLE_SLOT(ks) | i;
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data[i] = SE(SE_KEYTABLE_DATA0_REG_OFFSET);
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}
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memcpy(key, data, size);
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}
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void se_aes_key_clear(u32 ks)
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{
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for (u32 i = 0; i < TEGRA_SE_AES_MAX_KEY_SIZE / 4; i++)
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for (u32 i = 0; i < (TEGRA_SE_AES_MAX_KEY_SIZE / 4); i++)
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{
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SE(SE_KEYTABLE_REG_OFFSET) = SE_KEYTABLE_SLOT(ks) | i;
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SE(SE_KEYTABLE_DATA0_REG_OFFSET) = 0;
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@ -230,7 +239,7 @@ void se_aes_key_clear(u32 ks)
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void se_aes_iv_clear(u32 ks)
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{
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for (u32 i = 0; i < TEGRA_SE_AES_MIN_KEY_SIZE / 4; i++)
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for (u32 i = 0; i < (TEGRA_SE_AES_BLOCK_SIZE / 4); i++)
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{
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SE(SE_KEYTABLE_REG_OFFSET) = SE_KEYTABLE_SLOT(ks) | SE_KEYTABLE_QUAD(QUAD_ORG_IV) | i;
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SE(SE_KEYTABLE_DATA0_REG_OFFSET) = 0;
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@ -365,10 +374,10 @@ int se_aes_xts_crypt(u32 ks1, u32 ks2, u32 enc, u64 sec, void *dst, void *src, u
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int se_calc_sha256(void *hash, u32 *msg_left, const void *src, u32 src_size, u64 total_size, u32 sha_cfg, bool is_oneshot)
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{
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int res;
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u32 *hash32 = (u32 *)hash;
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u32 hash32[TEGRA_SE_SHA_256_SIZE / 4];
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//! TODO: src_size must be 512 bit aligned if continuing and not last block for SHA256.
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if (src_size > 0xFFFFFF || (u32)hash % 4 || !hash) // Max 16MB - 1 chunks and aligned x4 hash buffer.
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if (src_size > 0xFFFFFF || !hash) // Max 16MB - 1 chunks and aligned x4 hash buffer.
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return 0;
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// Setup config for SHA256.
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@ -400,7 +409,8 @@ int se_calc_sha256(void *hash, u32 *msg_left, const void *src, u32 src_size, u64
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SE(SE_SHA_MSG_LEFT_1_REG_OFFSET) = msg_left[1];
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// Restore hash reg.
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for (u32 i = 0; i < 8; i++)
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memcpy(hash32, hash, TEGRA_SE_SHA_256_SIZE);
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for (u32 i = 0; i < (TEGRA_SE_SHA_256_SIZE / 4); i++)
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SE(SE_HASH_RESULT_REG_OFFSET + (i << 2)) = byte_swap_32(hash32[i]);
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}
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@ -417,8 +427,9 @@ int se_calc_sha256(void *hash, u32 *msg_left, const void *src, u32 src_size, u64
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}
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// Copy output hash.
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for (u32 i = 0; i < 8; i++)
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for (u32 i = 0; i < (TEGRA_SE_SHA_256_SIZE / 4); i++)
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hash32[i] = byte_swap_32(SE(SE_HASH_RESULT_REG_OFFSET + (i << 2)));
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memcpy(hash, hash32, TEGRA_SE_SHA_256_SIZE);
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}
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return res;
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@ -431,7 +442,7 @@ int se_calc_sha256_oneshot(void *hash, const void *src, u32 src_size)
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int se_calc_sha256_finalize(void *hash, u32 *msg_left)
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{
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u32 *hash32 = (u32 *)hash;
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u32 hash32[TEGRA_SE_SHA_256_SIZE / 4];
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int res = _se_execute_finalize();
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// Backup message left.
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@ -442,8 +453,9 @@ int se_calc_sha256_finalize(void *hash, u32 *msg_left)
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}
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// Copy output hash.
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for (u32 i = 0; i < 8; i++)
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for (u32 i = 0; i < (TEGRA_SE_SHA_256_SIZE / 4); i++)
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hash32[i] = byte_swap_32(SE(SE_HASH_RESULT_REG_OFFSET + (i << 2)));
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memcpy(hash, hash32, TEGRA_SE_SHA_256_SIZE);
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return res;
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}
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@ -501,7 +513,7 @@ void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize)
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// Save SRK to PMC secure scratches.
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SE(SE_CONTEXT_SAVE_CONFIG_REG_OFFSET) = SE_CONTEXT_SAVE_SRC(SRK);
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SE(0x80) = 0; // SE_CRYPTO_LAST_BLOCK
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SE(SE_CRYPTO_LAST_BLOCK) = 0;
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_se_execute_oneshot(OP_CTX_SAVE, NULL, 0, NULL, 0);
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// End context save.
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@ -510,10 +522,10 @@ void se_get_aes_keys(u8 *buf, u8 *keys, u32 keysize)
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// Get SRK.
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u32 srk[4];
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srk[0] = PMC(0xC0);
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srk[1] = PMC(0xC4);
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srk[2] = PMC(0x224);
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srk[3] = PMC(0x228);
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srk[0] = PMC(APBDEV_PMC_SECURE_SCRATCH4);
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srk[1] = PMC(APBDEV_PMC_SECURE_SCRATCH5);
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srk[2] = PMC(APBDEV_PMC_SECURE_SCRATCH6);
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srk[3] = PMC(APBDEV_PMC_SECURE_SCRATCH7);
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// Decrypt context.
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se_aes_key_clear(3);
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@ -265,6 +265,10 @@
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#define TEGRA_SE_AES_MIN_KEY_SIZE 16
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#define TEGRA_SE_AES_MAX_KEY_SIZE 32
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#define TEGRA_SE_AES_IV_SIZE 16
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#define TEGRA_SE_SHA_512_SIZE 64
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#define TEGRA_SE_SHA_384_SIZE 48
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#define TEGRA_SE_SHA_256_SIZE 32
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#define TEGRA_SE_SHA_192_SIZE 24
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#define TEGRA_SE_RNG_IV_SIZE 16
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#define TEGRA_SE_RNG_DT_SIZE 16
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#define TEGRA_SE_RNG_KEY_SIZE 16
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@ -40,6 +40,8 @@
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#define PMC_SCRATCH0_MODE_CUSTOM_ALL (PMC_SCRATCH0_MODE_RECOVERY | PMC_SCRATCH0_MODE_FASTBOOT | PMC_SCRATCH0_MODE_PAYLOAD)
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#define APBDEV_PMC_SCRATCH1 0x54
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#define APBDEV_PMC_SCRATCH20 0xA0
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#define APBDEV_PMC_SECURE_SCRATCH4 0xC0
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#define APBDEV_PMC_SECURE_SCRATCH5 0xC4
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#define APBDEV_PMC_PWR_DET_VAL 0xE4
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#define PMC_PWR_DET_SDMMC1_IO_EN BIT(12)
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#define PMC_PWR_DET_AUDIO_HV BIT(18)
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@ -63,6 +65,8 @@
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#define APBDEV_PMC_IO_DPD2_REQ 0x1C0
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#define APBDEV_PMC_VDDP_SEL 0x1CC
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#define APBDEV_PMC_DDR_CFG 0x1D0
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#define APBDEV_PMC_SECURE_SCRATCH6 0x224
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#define APBDEV_PMC_SECURE_SCRATCH7 0x228
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#define APBDEV_PMC_SCRATCH45 0x234
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#define APBDEV_PMC_SCRATCH46 0x238
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#define APBDEV_PMC_SCRATCH49 0x244
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