diff options
Diffstat (limited to 'drivers/staging/skein/threefish_api.c')
-rw-r--r-- | drivers/staging/skein/threefish_api.c | 78 |
1 files changed, 0 insertions, 78 deletions
diff --git a/drivers/staging/skein/threefish_api.c b/drivers/staging/skein/threefish_api.c deleted file mode 100644 index e69cefa6b16a..000000000000 --- a/drivers/staging/skein/threefish_api.c +++ /dev/null @@ -1,78 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/string.h> -#include "threefish_api.h" - -void threefish_set_key(struct threefish_key *key_ctx, - enum threefish_size state_size, - u64 *key_data, u64 *tweak) -{ - int key_words = state_size / 64; - int i; - u64 parity = KEY_SCHEDULE_CONST; - - key_ctx->tweak[0] = tweak[0]; - key_ctx->tweak[1] = tweak[1]; - key_ctx->tweak[2] = tweak[0] ^ tweak[1]; - - for (i = 0; i < key_words; i++) { - key_ctx->key[i] = key_data[i]; - parity ^= key_data[i]; - } - key_ctx->key[i] = parity; - key_ctx->state_size = state_size; -} - -void threefish_encrypt_block_bytes(struct threefish_key *key_ctx, u8 *in, - u8 *out) -{ - u64 plain[SKEIN_MAX_STATE_WORDS]; /* max number of words*/ - u64 cipher[SKEIN_MAX_STATE_WORDS]; - - skein_get64_lsb_first(plain, in, key_ctx->state_size / 64); - threefish_encrypt_block_words(key_ctx, plain, cipher); - skein_put64_lsb_first(out, cipher, key_ctx->state_size / 8); -} - -void threefish_encrypt_block_words(struct threefish_key *key_ctx, u64 *in, - u64 *out) -{ - switch (key_ctx->state_size) { - case THREEFISH_256: - threefish_encrypt_256(key_ctx, in, out); - break; - case THREEFISH_512: - threefish_encrypt_512(key_ctx, in, out); - break; - case THREEFISH_1024: - threefish_encrypt_1024(key_ctx, in, out); - break; - } -} - -void threefish_decrypt_block_bytes(struct threefish_key *key_ctx, u8 *in, - u8 *out) -{ - u64 plain[SKEIN_MAX_STATE_WORDS]; /* max number of words*/ - u64 cipher[SKEIN_MAX_STATE_WORDS]; - - skein_get64_lsb_first(cipher, in, key_ctx->state_size / 64); - threefish_decrypt_block_words(key_ctx, cipher, plain); - skein_put64_lsb_first(out, plain, key_ctx->state_size / 8); -} - -void threefish_decrypt_block_words(struct threefish_key *key_ctx, u64 *in, - u64 *out) -{ - switch (key_ctx->state_size) { - case THREEFISH_256: - threefish_decrypt_256(key_ctx, in, out); - break; - case THREEFISH_512: - threefish_decrypt_512(key_ctx, in, out); - break; - case THREEFISH_1024: - threefish_decrypt_1024(key_ctx, in, out); - break; - } -} - |