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authorLinus Torvalds <torvalds@linux-foundation.org>2022-12-14 23:31:09 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-12-14 23:31:09 +0300
commit64e7003c6b85626a533a67c1ba938b75a3db24e6 (patch)
tree5e3e776d23a9520f51251b4838d4aa66d920dbff /arch/arm64/crypto/sm4-ce-ccm-core.S
parent48ea09cddae0b794cde2070f106ef676703dbcd3 (diff)
parent453de3eb08c4b7e31b3019a4b0cc3ebce51a6219 (diff)
downloadlinux-64e7003c6b85626a533a67c1ba938b75a3db24e6.tar.xz
Merge tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "API: - Optimise away self-test overhead when they are disabled - Support symmetric encryption via keyring keys in af_alg - Flip hwrng default_quality, the default is now maximum entropy Algorithms: - Add library version of aesgcm - CFI fixes for assembly code - Add arm/arm64 accelerated versions of sm3/sm4 Drivers: - Remove assumption on arm64 that kmalloc is DMA-aligned - Fix selftest failures in rockchip - Add support for RK3328/RK3399 in rockchip - Add deflate support in qat - Merge ux500 into stm32 - Add support for TEE for PCI ID 0x14CA in ccp - Add mt7986 support in mtk - Add MaxLinear platform support in inside-secure - Add NPCM8XX support in npcm" * tag 'v6.2-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (184 commits) crypto: ux500/cryp - delete driver crypto: stm32/cryp - enable for use with Ux500 crypto: stm32 - enable drivers to be used on Ux500 dt-bindings: crypto: Let STM32 define Ux500 CRYP hwrng: geode - Fix PCI device refcount leak hwrng: amd - Fix PCI device refcount leak crypto: qce - Set DMA alignment explicitly crypto: octeontx2 - Set DMA alignment explicitly crypto: octeontx - Set DMA alignment explicitly crypto: keembay - Set DMA alignment explicitly crypto: safexcel - Set DMA alignment explicitly crypto: hisilicon/hpre - Set DMA alignment explicitly crypto: chelsio - Set DMA alignment explicitly crypto: ccree - Set DMA alignment explicitly crypto: ccp - Set DMA alignment explicitly crypto: cavium - Set DMA alignment explicitly crypto: img-hash - Fix variable dereferenced before check 'hdev->req' crypto: arm64/ghash-ce - use frame_push/pop macros consistently crypto: arm64/crct10dif - use frame_push/pop macros consistently crypto: arm64/aes-modes - use frame_push/pop macros consistently ...
Diffstat (limited to 'arch/arm64/crypto/sm4-ce-ccm-core.S')
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diff --git a/arch/arm64/crypto/sm4-ce-ccm-core.S b/arch/arm64/crypto/sm4-ce-ccm-core.S
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+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SM4-CCM AEAD Algorithm using ARMv8 Crypto Extensions
+ * as specified in rfc8998
+ * https://datatracker.ietf.org/doc/html/rfc8998
+ *
+ * Copyright (C) 2022 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+#include "sm4-ce-asm.h"
+
+.arch armv8-a+crypto
+
+.irp b, 0, 1, 8, 9, 10, 11, 12, 13, 14, 15, 16, 24, 25, 26, 27, 28, 29, 30, 31
+ .set .Lv\b\().4s, \b
+.endr
+
+.macro sm4e, vd, vn
+ .inst 0xcec08400 | (.L\vn << 5) | .L\vd
+.endm
+
+/* Register macros */
+
+#define RMAC v16
+
+/* Helper macros. */
+
+#define inc_le128(vctr) \
+ mov vctr.d[1], x8; \
+ mov vctr.d[0], x7; \
+ adds x8, x8, #1; \
+ rev64 vctr.16b, vctr.16b; \
+ adc x7, x7, xzr;
+
+
+.align 3
+SYM_FUNC_START(sm4_ce_cbcmac_update)
+ /* input:
+ * x0: round key array, CTX
+ * x1: mac
+ * x2: src
+ * w3: nblocks
+ */
+ SM4_PREPARE(x0)
+
+ ld1 {RMAC.16b}, [x1]
+
+.Lcbcmac_loop_4x:
+ cmp w3, #4
+ blt .Lcbcmac_loop_1x
+
+ sub w3, w3, #4
+
+ ld1 {v0.16b-v3.16b}, [x2], #64
+
+ SM4_CRYPT_BLK(RMAC)
+ eor RMAC.16b, RMAC.16b, v0.16b
+ SM4_CRYPT_BLK(RMAC)
+ eor RMAC.16b, RMAC.16b, v1.16b
+ SM4_CRYPT_BLK(RMAC)
+ eor RMAC.16b, RMAC.16b, v2.16b
+ SM4_CRYPT_BLK(RMAC)
+ eor RMAC.16b, RMAC.16b, v3.16b
+
+ cbz w3, .Lcbcmac_end
+ b .Lcbcmac_loop_4x
+
+.Lcbcmac_loop_1x:
+ sub w3, w3, #1
+
+ ld1 {v0.16b}, [x2], #16
+
+ SM4_CRYPT_BLK(RMAC)
+ eor RMAC.16b, RMAC.16b, v0.16b
+
+ cbnz w3, .Lcbcmac_loop_1x
+
+.Lcbcmac_end:
+ st1 {RMAC.16b}, [x1]
+ ret
+SYM_FUNC_END(sm4_ce_cbcmac_update)
+
+.align 3
+SYM_FUNC_START(sm4_ce_ccm_final)
+ /* input:
+ * x0: round key array, CTX
+ * x1: ctr0 (big endian, 128 bit)
+ * x2: mac
+ */
+ SM4_PREPARE(x0)
+
+ ld1 {RMAC.16b}, [x2]
+ ld1 {v0.16b}, [x1]
+
+ SM4_CRYPT_BLK2(RMAC, v0)
+
+ /* en-/decrypt the mac with ctr0 */
+ eor RMAC.16b, RMAC.16b, v0.16b
+ st1 {RMAC.16b}, [x2]
+
+ ret
+SYM_FUNC_END(sm4_ce_ccm_final)
+
+.align 3
+SYM_FUNC_START(sm4_ce_ccm_enc)
+ /* input:
+ * x0: round key array, CTX
+ * x1: dst
+ * x2: src
+ * x3: ctr (big endian, 128 bit)
+ * w4: nbytes
+ * x5: mac
+ */
+ SM4_PREPARE(x0)
+
+ ldp x7, x8, [x3]
+ rev x7, x7
+ rev x8, x8
+
+ ld1 {RMAC.16b}, [x5]
+
+.Lccm_enc_loop_4x:
+ cmp w4, #(4 * 16)
+ blt .Lccm_enc_loop_1x
+
+ sub w4, w4, #(4 * 16)
+
+ /* construct CTRs */
+ inc_le128(v8) /* +0 */
+ inc_le128(v9) /* +1 */
+ inc_le128(v10) /* +2 */
+ inc_le128(v11) /* +3 */
+
+ ld1 {v0.16b-v3.16b}, [x2], #64
+
+ SM4_CRYPT_BLK2(v8, RMAC)
+ eor v8.16b, v8.16b, v0.16b
+ eor RMAC.16b, RMAC.16b, v0.16b
+ SM4_CRYPT_BLK2(v9, RMAC)
+ eor v9.16b, v9.16b, v1.16b
+ eor RMAC.16b, RMAC.16b, v1.16b
+ SM4_CRYPT_BLK2(v10, RMAC)
+ eor v10.16b, v10.16b, v2.16b
+ eor RMAC.16b, RMAC.16b, v2.16b
+ SM4_CRYPT_BLK2(v11, RMAC)
+ eor v11.16b, v11.16b, v3.16b
+ eor RMAC.16b, RMAC.16b, v3.16b
+
+ st1 {v8.16b-v11.16b}, [x1], #64
+
+ cbz w4, .Lccm_enc_end
+ b .Lccm_enc_loop_4x
+
+.Lccm_enc_loop_1x:
+ cmp w4, #16
+ blt .Lccm_enc_tail
+
+ sub w4, w4, #16
+
+ /* construct CTRs */
+ inc_le128(v8)
+
+ ld1 {v0.16b}, [x2], #16
+
+ SM4_CRYPT_BLK2(v8, RMAC)
+ eor v8.16b, v8.16b, v0.16b
+ eor RMAC.16b, RMAC.16b, v0.16b
+
+ st1 {v8.16b}, [x1], #16
+
+ cbz w4, .Lccm_enc_end
+ b .Lccm_enc_loop_1x
+
+.Lccm_enc_tail:
+ /* construct CTRs */
+ inc_le128(v8)
+
+ SM4_CRYPT_BLK2(RMAC, v8)
+
+ /* store new MAC */
+ st1 {RMAC.16b}, [x5]
+
+.Lccm_enc_tail_loop:
+ ldrb w0, [x2], #1 /* get 1 byte from input */
+ umov w9, v8.b[0] /* get top crypted CTR byte */
+ umov w6, RMAC.b[0] /* get top MAC byte */
+
+ eor w9, w9, w0 /* w9 = CTR ^ input */
+ eor w6, w6, w0 /* w6 = MAC ^ input */
+
+ strb w9, [x1], #1 /* store out byte */
+ strb w6, [x5], #1 /* store MAC byte */
+
+ subs w4, w4, #1
+ beq .Lccm_enc_ret
+
+ /* shift out one byte */
+ ext RMAC.16b, RMAC.16b, RMAC.16b, #1
+ ext v8.16b, v8.16b, v8.16b, #1
+
+ b .Lccm_enc_tail_loop
+
+.Lccm_enc_end:
+ /* store new MAC */
+ st1 {RMAC.16b}, [x5]
+
+ /* store new CTR */
+ rev x7, x7
+ rev x8, x8
+ stp x7, x8, [x3]
+
+.Lccm_enc_ret:
+ ret
+SYM_FUNC_END(sm4_ce_ccm_enc)
+
+.align 3
+SYM_FUNC_START(sm4_ce_ccm_dec)
+ /* input:
+ * x0: round key array, CTX
+ * x1: dst
+ * x2: src
+ * x3: ctr (big endian, 128 bit)
+ * w4: nbytes
+ * x5: mac
+ */
+ SM4_PREPARE(x0)
+
+ ldp x7, x8, [x3]
+ rev x7, x7
+ rev x8, x8
+
+ ld1 {RMAC.16b}, [x5]
+
+.Lccm_dec_loop_4x:
+ cmp w4, #(4 * 16)
+ blt .Lccm_dec_loop_1x
+
+ sub w4, w4, #(4 * 16)
+
+ /* construct CTRs */
+ inc_le128(v8) /* +0 */
+ inc_le128(v9) /* +1 */
+ inc_le128(v10) /* +2 */
+ inc_le128(v11) /* +3 */
+
+ ld1 {v0.16b-v3.16b}, [x2], #64
+
+ SM4_CRYPT_BLK2(v8, RMAC)
+ eor v8.16b, v8.16b, v0.16b
+ eor RMAC.16b, RMAC.16b, v8.16b
+ SM4_CRYPT_BLK2(v9, RMAC)
+ eor v9.16b, v9.16b, v1.16b
+ eor RMAC.16b, RMAC.16b, v9.16b
+ SM4_CRYPT_BLK2(v10, RMAC)
+ eor v10.16b, v10.16b, v2.16b
+ eor RMAC.16b, RMAC.16b, v10.16b
+ SM4_CRYPT_BLK2(v11, RMAC)
+ eor v11.16b, v11.16b, v3.16b
+ eor RMAC.16b, RMAC.16b, v11.16b
+
+ st1 {v8.16b-v11.16b}, [x1], #64
+
+ cbz w4, .Lccm_dec_end
+ b .Lccm_dec_loop_4x
+
+.Lccm_dec_loop_1x:
+ cmp w4, #16
+ blt .Lccm_dec_tail
+
+ sub w4, w4, #16
+
+ /* construct CTRs */
+ inc_le128(v8)
+
+ ld1 {v0.16b}, [x2], #16
+
+ SM4_CRYPT_BLK2(v8, RMAC)
+ eor v8.16b, v8.16b, v0.16b
+ eor RMAC.16b, RMAC.16b, v8.16b
+
+ st1 {v8.16b}, [x1], #16
+
+ cbz w4, .Lccm_dec_end
+ b .Lccm_dec_loop_1x
+
+.Lccm_dec_tail:
+ /* construct CTRs */
+ inc_le128(v8)
+
+ SM4_CRYPT_BLK2(RMAC, v8)
+
+ /* store new MAC */
+ st1 {RMAC.16b}, [x5]
+
+.Lccm_dec_tail_loop:
+ ldrb w0, [x2], #1 /* get 1 byte from input */
+ umov w9, v8.b[0] /* get top crypted CTR byte */
+ umov w6, RMAC.b[0] /* get top MAC byte */
+
+ eor w9, w9, w0 /* w9 = CTR ^ input */
+ eor w6, w6, w9 /* w6 = MAC ^ output */
+
+ strb w9, [x1], #1 /* store out byte */
+ strb w6, [x5], #1 /* store MAC byte */
+
+ subs w4, w4, #1
+ beq .Lccm_dec_ret
+
+ /* shift out one byte */
+ ext RMAC.16b, RMAC.16b, RMAC.16b, #1
+ ext v8.16b, v8.16b, v8.16b, #1
+
+ b .Lccm_dec_tail_loop
+
+.Lccm_dec_end:
+ /* store new MAC */
+ st1 {RMAC.16b}, [x5]
+
+ /* store new CTR */
+ rev x7, x7
+ rev x8, x8
+ stp x7, x8, [x3]
+
+.Lccm_dec_ret:
+ ret
+SYM_FUNC_END(sm4_ce_ccm_dec)