diff options
| -rw-r--r-- | arch/arm/cpu/tegra20-common/crypto.c | 4 | ||||
| -rw-r--r-- | include/aes.h | 11 | ||||
| -rw-r--r-- | lib/aes.c | 15 |
3 files changed, 16 insertions, 14 deletions
diff --git a/arch/arm/cpu/tegra20-common/crypto.c b/arch/arm/cpu/tegra20-common/crypto.c index b18e67c..0967f3e 100644 --- a/arch/arm/cpu/tegra20-common/crypto.c +++ b/arch/arm/cpu/tegra20-common/crypto.c @@ -74,11 +74,11 @@ static void sign_object(u8 *key, u8 *key_schedule, u8 *src, u8 *dst, /* compute the AES-CMAC value */ for (i = 0; i < num_aes_blocks; i++) { /* Apply the chain data */ - apply_cbc_chain_data(cbc_chain_data, src, tmp_data); + aes_apply_cbc_chain_data(cbc_chain_data, src, tmp_data); /* for the final block, XOR K1 into the IV */ if (i == num_aes_blocks - 1) - apply_cbc_chain_data(tmp_data, k1, tmp_data); + aes_apply_cbc_chain_data(tmp_data, k1, tmp_data); /* encrypt the AES block */ aes_encrypt(tmp_data, key_schedule, dst); diff --git a/include/aes.h b/include/aes.h index ee0e6c2..6315c02 100644 --- a/include/aes.h +++ b/include/aes.h @@ -61,6 +61,17 @@ void aes_encrypt(u8 *in, u8 *expkey, u8 *out); void aes_decrypt(u8 *in, u8 *expkey, u8 *out); /** + * Apply chain data to the destination using EOR + * + * Each array is of length AES_KEY_LENGTH. + * + * @cbc_chain_data Chain data + * @src Source data + * @dst Destination data, which is modified here + */ +void aes_apply_cbc_chain_data(u8 *cbc_chain_data, u8 *src, u8 *dst); + +/** * aes_cbc_encrypt_blocks() - Encrypt multiple blocks of data with AES CBC. * * @key_exp Expanded key to use @@ -593,16 +593,7 @@ static void debug_print_vector(char *name, u32 num_bytes, u8 *data) #endif } -/** - * Apply chain data to the destination using EOR - * - * Each array is of length AES_KEY_LENGTH. - * - * @cbc_chain_data Chain data - * @src Source data - * @dst Destination data, which is modified here - */ -static void apply_cbc_chain_data(u8 *cbc_chain_data, u8 *src, u8 *dst) +void aes_apply_cbc_chain_data(u8 *cbc_chain_data, u8 *src, u8 *dst) { int i; @@ -623,7 +614,7 @@ void aes_cbc_encrypt_blocks(u8 *key_exp, u8 *src, u8 *dst, u32 num_aes_blocks) debug_print_vector("AES Src", AES_KEY_LENGTH, src); /* Apply the chain data */ - apply_cbc_chain_data(cbc_chain_data, src, tmp_data); + aes_apply_cbc_chain_data(cbc_chain_data, src, tmp_data); debug_print_vector("AES Xor", AES_KEY_LENGTH, tmp_data); /* Encrypt the AES block */ @@ -655,7 +646,7 @@ void aes_cbc_decrypt_blocks(u8 *key_exp, u8 *src, u8 *dst, u32 num_aes_blocks) debug_print_vector("AES Xor", AES_KEY_LENGTH, tmp_data); /* Apply the chain data */ - apply_cbc_chain_data(cbc_chain_data, tmp_data, dst); + aes_apply_cbc_chain_data(cbc_chain_data, tmp_data, dst); debug_print_vector("AES Dst", AES_KEY_LENGTH, dst); /* Update pointers for next loop. */ |