diff options
-rw-r--r-- | arch/x86/crypto/camellia-aesni-avx-asm_64.S | 180 | ||||
-rw-r--r-- | arch/x86/crypto/camellia_aesni_avx_glue.c | 91 |
2 files changed, 229 insertions, 42 deletions
diff --git a/arch/x86/crypto/camellia-aesni-avx-asm_64.S b/arch/x86/crypto/camellia-aesni-avx-asm_64.S index cfc163469c71..ce71f9212409 100644 --- a/arch/x86/crypto/camellia-aesni-avx-asm_64.S +++ b/arch/x86/crypto/camellia-aesni-avx-asm_64.S @@ -1,7 +1,7 @@ /* * x86_64/AVX/AES-NI assembler implementation of Camellia * - * Copyright © 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -589,6 +589,10 @@ ENDPROC(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab) .Lbswap128_mask: .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 +/* For XTS mode IV generation */ +.Lxts_gf128mul_and_shl1_mask: + .byte 0x87, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 + /* * pre-SubByte transform * @@ -1090,3 +1094,177 @@ ENTRY(camellia_ctr_16way) ret; ENDPROC(camellia_ctr_16way) + +#define gf128mul_x_ble(iv, mask, tmp) \ + vpsrad $31, iv, tmp; \ + vpaddq iv, iv, iv; \ + vpshufd $0x13, tmp, tmp; \ + vpand mask, tmp, tmp; \ + vpxor tmp, iv, iv; + +.align 8 +camellia_xts_crypt_16way: + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + * %r8: index for input whitening key + * %r9: pointer to __camellia_enc_blk16 or __camellia_dec_blk16 + */ + + subq $(16 * 16), %rsp; + movq %rsp, %rax; + + vmovdqa .Lxts_gf128mul_and_shl1_mask, %xmm14; + + /* load IV */ + vmovdqu (%rcx), %xmm0; + vpxor 0 * 16(%rdx), %xmm0, %xmm15; + vmovdqu %xmm15, 15 * 16(%rax); + vmovdqu %xmm0, 0 * 16(%rsi); + + /* construct IVs */ + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 1 * 16(%rdx), %xmm0, %xmm15; + vmovdqu %xmm15, 14 * 16(%rax); + vmovdqu %xmm0, 1 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 2 * 16(%rdx), %xmm0, %xmm13; + vmovdqu %xmm0, 2 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 3 * 16(%rdx), %xmm0, %xmm12; + vmovdqu %xmm0, 3 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 4 * 16(%rdx), %xmm0, %xmm11; + vmovdqu %xmm0, 4 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 5 * 16(%rdx), %xmm0, %xmm10; + vmovdqu %xmm0, 5 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 6 * 16(%rdx), %xmm0, %xmm9; + vmovdqu %xmm0, 6 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 7 * 16(%rdx), %xmm0, %xmm8; + vmovdqu %xmm0, 7 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 8 * 16(%rdx), %xmm0, %xmm7; + vmovdqu %xmm0, 8 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 9 * 16(%rdx), %xmm0, %xmm6; + vmovdqu %xmm0, 9 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 10 * 16(%rdx), %xmm0, %xmm5; + vmovdqu %xmm0, 10 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 11 * 16(%rdx), %xmm0, %xmm4; + vmovdqu %xmm0, 11 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 12 * 16(%rdx), %xmm0, %xmm3; + vmovdqu %xmm0, 12 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 13 * 16(%rdx), %xmm0, %xmm2; + vmovdqu %xmm0, 13 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 14 * 16(%rdx), %xmm0, %xmm1; + vmovdqu %xmm0, 14 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vpxor 15 * 16(%rdx), %xmm0, %xmm15; + vmovdqu %xmm15, 0 * 16(%rax); + vmovdqu %xmm0, 15 * 16(%rsi); + + gf128mul_x_ble(%xmm0, %xmm14, %xmm15); + vmovdqu %xmm0, (%rcx); + + /* inpack16_pre: */ + vmovq (key_table)(CTX, %r8, 8), %xmm15; + vpshufb .Lpack_bswap, %xmm15, %xmm15; + vpxor 0 * 16(%rax), %xmm15, %xmm0; + vpxor %xmm1, %xmm15, %xmm1; + vpxor %xmm2, %xmm15, %xmm2; + vpxor %xmm3, %xmm15, %xmm3; + vpxor %xmm4, %xmm15, %xmm4; + vpxor %xmm5, %xmm15, %xmm5; + vpxor %xmm6, %xmm15, %xmm6; + vpxor %xmm7, %xmm15, %xmm7; + vpxor %xmm8, %xmm15, %xmm8; + vpxor %xmm9, %xmm15, %xmm9; + vpxor %xmm10, %xmm15, %xmm10; + vpxor %xmm11, %xmm15, %xmm11; + vpxor %xmm12, %xmm15, %xmm12; + vpxor %xmm13, %xmm15, %xmm13; + vpxor 14 * 16(%rax), %xmm15, %xmm14; + vpxor 15 * 16(%rax), %xmm15, %xmm15; + + call *%r9; + + addq $(16 * 16), %rsp; + + vpxor 0 * 16(%rsi), %xmm7, %xmm7; + vpxor 1 * 16(%rsi), %xmm6, %xmm6; + vpxor 2 * 16(%rsi), %xmm5, %xmm5; + vpxor 3 * 16(%rsi), %xmm4, %xmm4; + vpxor 4 * 16(%rsi), %xmm3, %xmm3; + vpxor 5 * 16(%rsi), %xmm2, %xmm2; + vpxor 6 * 16(%rsi), %xmm1, %xmm1; + vpxor 7 * 16(%rsi), %xmm0, %xmm0; + vpxor 8 * 16(%rsi), %xmm15, %xmm15; + vpxor 9 * 16(%rsi), %xmm14, %xmm14; + vpxor 10 * 16(%rsi), %xmm13, %xmm13; + vpxor 11 * 16(%rsi), %xmm12, %xmm12; + vpxor 12 * 16(%rsi), %xmm11, %xmm11; + vpxor 13 * 16(%rsi), %xmm10, %xmm10; + vpxor 14 * 16(%rsi), %xmm9, %xmm9; + vpxor 15 * 16(%rsi), %xmm8, %xmm8; + write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0, + %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9, + %xmm8, %rsi); + + ret; +ENDPROC(camellia_xts_crypt_16way) + +ENTRY(camellia_xts_enc_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + xorl %r8d, %r8d; /* input whitening key, 0 for enc */ + + leaq __camellia_enc_blk16, %r9; + + jmp camellia_xts_crypt_16way; +ENDPROC(camellia_xts_enc_16way) + +ENTRY(camellia_xts_dec_16way) + /* input: + * %rdi: ctx, CTX + * %rsi: dst (16 blocks) + * %rdx: src (16 blocks) + * %rcx: iv (t ⊕ αⁿ ∈ GF(2¹²⁸)) + */ + + cmpl $16, key_length(CTX); + movl $32, %r8d; + movl $24, %eax; + cmovel %eax, %r8d; /* input whitening key, last for dec */ + + leaq __camellia_dec_blk16, %r9; + + jmp camellia_xts_crypt_16way; +ENDPROC(camellia_xts_dec_16way) diff --git a/arch/x86/crypto/camellia_aesni_avx_glue.c b/arch/x86/crypto/camellia_aesni_avx_glue.c index 96cbb6068fce..4ff7ed47b3db 100644 --- a/arch/x86/crypto/camellia_aesni_avx_glue.c +++ b/arch/x86/crypto/camellia_aesni_avx_glue.c @@ -1,7 +1,7 @@ /* * Glue Code for x86_64/AVX/AES-NI assembler optimized version of Camellia * - * Copyright © 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi> + * Copyright © 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -37,6 +37,23 @@ asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst, asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst, const u8 *src, le128 *iv); +asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); +asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst, + const u8 *src, le128 *iv); + +static void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + glue_xts_crypt_128bit_one(ctx, dst, src, iv, + GLUE_FUNC_CAST(camellia_enc_blk)); +} + +static void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv) +{ + glue_xts_crypt_128bit_one(ctx, dst, src, iv, + GLUE_FUNC_CAST(camellia_dec_blk)); +} + static const struct common_glue_ctx camellia_enc = { .num_funcs = 3, .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, @@ -69,6 +86,19 @@ static const struct common_glue_ctx camellia_ctr = { } } }; +static const struct common_glue_ctx camellia_enc_xts = { + .num_funcs = 2, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_16way) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc) } + } } +}; + static const struct common_glue_ctx camellia_dec = { .num_funcs = 3, .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, @@ -101,6 +131,19 @@ static const struct common_glue_ctx camellia_dec_cbc = { } } }; +static const struct common_glue_ctx camellia_dec_xts = { + .num_funcs = 2, + .fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS, + + .funcs = { { + .num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_16way) } + }, { + .num_blocks = 1, + .fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec) } + } } +}; + static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) { @@ -261,54 +304,20 @@ static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) { struct camellia_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); - be128 buf[CAMELLIA_AESNI_PARALLEL_BLOCKS]; - struct crypt_priv crypt_ctx = { - .ctx = &ctx->crypt_ctx, - .fpu_enabled = false, - }; - struct xts_crypt_req req = { - .tbuf = buf, - .tbuflen = sizeof(buf), - - .tweak_ctx = &ctx->tweak_ctx, - .tweak_fn = XTS_TWEAK_CAST(camellia_enc_blk), - .crypt_ctx = &crypt_ctx, - .crypt_fn = encrypt_callback, - }; - int ret; - - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; - ret = xts_crypt(desc, dst, src, nbytes, &req); - camellia_fpu_end(crypt_ctx.fpu_enabled); - return ret; + return glue_xts_crypt_128bit(&camellia_enc_xts, desc, dst, src, nbytes, + XTS_TWEAK_CAST(camellia_enc_blk), + &ctx->tweak_ctx, &ctx->crypt_ctx); } static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst, struct scatterlist *src, unsigned int nbytes) { struct camellia_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm); - be128 buf[CAMELLIA_AESNI_PARALLEL_BLOCKS]; - struct crypt_priv crypt_ctx = { - .ctx = &ctx->crypt_ctx, - .fpu_enabled = false, - }; - struct xts_crypt_req req = { - .tbuf = buf, - .tbuflen = sizeof(buf), - .tweak_ctx = &ctx->tweak_ctx, - .tweak_fn = XTS_TWEAK_CAST(camellia_enc_blk), - .crypt_ctx = &crypt_ctx, - .crypt_fn = decrypt_callback, - }; - int ret; - - desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP; - ret = xts_crypt(desc, dst, src, nbytes, &req); - camellia_fpu_end(crypt_ctx.fpu_enabled); - - return ret; + return glue_xts_crypt_128bit(&camellia_dec_xts, desc, dst, src, nbytes, + XTS_TWEAK_CAST(camellia_enc_blk), + &ctx->tweak_ctx, &ctx->crypt_ctx); } static struct crypto_alg cmll_algs[10] = { { |