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Diffstat (limited to 'src/crypto/sha512/sha512block_arm64.s')
| -rw-r--r-- | src/crypto/sha512/sha512block_arm64.s | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/crypto/sha512/sha512block_arm64.s b/src/crypto/sha512/sha512block_arm64.s new file mode 100644 index 0000000..dfc35d6 --- /dev/null +++ b/src/crypto/sha512/sha512block_arm64.s @@ -0,0 +1,135 @@ +// Copyright 2022 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Based on the Linux Kernel with the following comment: +// Algorithm based on https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb87127bcefc17efab757606e1b1e333fd614dd0 +// Originally written by Ard Biesheuvel <ard.biesheuvel@linaro.org> + +#include "textflag.h" + +#define SHA512TRANS(i0, i1, i2, i3, i4, rc0, in0) \ + VADD in0.D2, rc0.D2, V5.D2 \ + VEXT $8, i3.B16, i2.B16, V6.B16 \ + VEXT $8, V5.B16, V5.B16, V5.B16 \ + VEXT $8, i2.B16, i1.B16, V7.B16 \ + VADD V5.D2, i3.D2, i3.D2 \ + +#define SHA512ROUND(i0, i1, i2, i3, i4, rc0, rc1, in0, in1, in2, in3, in4) \ + VLD1.P 16(R4), [rc1.D2] \ + SHA512TRANS(i0, i1, i2, i3, i4, rc0, in0) \ + VEXT $8, in4.B16, in3.B16, V5.B16 \ + SHA512SU0 in1.D2, in0.D2 \ + SHA512H V7.D2, V6, i3 \ + SHA512SU1 V5.D2, in2.D2, in0.D2 \ + VADD i3.D2, i1.D2, i4.D2 \ + SHA512H2 i0.D2, i1, i3 + +#define SHA512ROUND_NO_UPDATE(i0, i1, i2, i3, i4, rc0, rc1, in0) \ + VLD1.P 16(R4), [rc1.D2] \ + SHA512TRANS(i0, i1, i2, i3, i4, rc0, in0) \ + SHA512H V7.D2, V6, i3 \ + VADD i3.D2, i1.D2, i4.D2 \ + SHA512H2 i0.D2, i1, i3 + +#define SHA512ROUND_LAST(i0, i1, i2, i3, i4, rc0, in0) \ + SHA512TRANS(i0, i1, i2, i3, i4, rc0, in0) \ + SHA512H V7.D2, V6, i3 \ + VADD i3.D2, i1.D2, i4.D2 \ + SHA512H2 i0.D2, i1, i3 + +// func blockAsm(dig *digest, p []byte) +TEXT ·blockAsm(SB),NOSPLIT,$0 + MOVD dig+0(FP), R0 + MOVD p_base+8(FP), R1 + MOVD p_len+16(FP), R2 + MOVD ·_K+0(SB), R3 + + // long enough to prefetch + PRFM (R3), PLDL3KEEP + // load digest + VLD1 (R0), [V8.D2, V9.D2, V10.D2, V11.D2] +loop: + // load digest in V0-V3 keeping original in V8-V11 + VMOV V8.B16, V0.B16 + VMOV V9.B16, V1.B16 + VMOV V10.B16, V2.B16 + VMOV V11.B16, V3.B16 + + // load message data in V12-V19 + VLD1.P 64(R1), [V12.D2, V13.D2, V14.D2, V15.D2] + VLD1.P 64(R1), [V16.D2, V17.D2, V18.D2, V19.D2] + + // convert message into big endian format + VREV64 V12.B16, V12.B16 + VREV64 V13.B16, V13.B16 + VREV64 V14.B16, V14.B16 + VREV64 V15.B16, V15.B16 + VREV64 V16.B16, V16.B16 + VREV64 V17.B16, V17.B16 + VREV64 V18.B16, V18.B16 + VREV64 V19.B16, V19.B16 + + MOVD R3, R4 + // load first 4 round consts in V20-V23 + VLD1.P 64(R4), [V20.D2, V21.D2, V22.D2, V23.D2] + + SHA512ROUND(V0, V1, V2, V3, V4, V20, V24, V12, V13, V19, V16, V17) + SHA512ROUND(V3, V0, V4, V2, V1, V21, V25, V13, V14, V12, V17, V18) + SHA512ROUND(V2, V3, V1, V4, V0, V22, V26, V14, V15, V13, V18, V19) + SHA512ROUND(V4, V2, V0, V1, V3, V23, V27, V15, V16, V14, V19, V12) + SHA512ROUND(V1, V4, V3, V0, V2, V24, V28, V16, V17, V15, V12, V13) + + SHA512ROUND(V0, V1, V2, V3, V4, V25, V29, V17, V18, V16, V13, V14) + SHA512ROUND(V3, V0, V4, V2, V1, V26, V30, V18, V19, V17, V14, V15) + SHA512ROUND(V2, V3, V1, V4, V0, V27, V31, V19, V12, V18, V15, V16) + SHA512ROUND(V4, V2, V0, V1, V3, V28, V24, V12, V13, V19, V16, V17) + SHA512ROUND(V1, V4, V3, V0, V2, V29, V25, V13, V14, V12, V17, V18) + + SHA512ROUND(V0, V1, V2, V3, V4, V30, V26, V14, V15, V13, V18, V19) + SHA512ROUND(V3, V0, V4, V2, V1, V31, V27, V15, V16, V14, V19, V12) + SHA512ROUND(V2, V3, V1, V4, V0, V24, V28, V16, V17, V15, V12, V13) + SHA512ROUND(V4, V2, V0, V1, V3, V25, V29, V17, V18, V16, V13, V14) + SHA512ROUND(V1, V4, V3, V0, V2, V26, V30, V18, V19, V17, V14, V15) + + SHA512ROUND(V0, V1, V2, V3, V4, V27, V31, V19, V12, V18, V15, V16) + SHA512ROUND(V3, V0, V4, V2, V1, V28, V24, V12, V13, V19, V16, V17) + SHA512ROUND(V2, V3, V1, V4, V0, V29, V25, V13, V14, V12, V17, V18) + SHA512ROUND(V4, V2, V0, V1, V3, V30, V26, V14, V15, V13, V18, V19) + SHA512ROUND(V1, V4, V3, V0, V2, V31, V27, V15, V16, V14, V19, V12) + + SHA512ROUND(V0, V1, V2, V3, V4, V24, V28, V16, V17, V15, V12, V13) + SHA512ROUND(V3, V0, V4, V2, V1, V25, V29, V17, V18, V16, V13, V14) + SHA512ROUND(V2, V3, V1, V4, V0, V26, V30, V18, V19, V17, V14, V15) + SHA512ROUND(V4, V2, V0, V1, V3, V27, V31, V19, V12, V18, V15, V16) + SHA512ROUND(V1, V4, V3, V0, V2, V28, V24, V12, V13, V19, V16, V17) + + SHA512ROUND(V0, V1, V2, V3, V4, V29, V25, V13, V14, V12, V17, V18) + SHA512ROUND(V3, V0, V4, V2, V1, V30, V26, V14, V15, V13, V18, V19) + SHA512ROUND(V2, V3, V1, V4, V0, V31, V27, V15, V16, V14, V19, V12) + SHA512ROUND(V4, V2, V0, V1, V3, V24, V28, V16, V17, V15, V12, V13) + SHA512ROUND(V1, V4, V3, V0, V2, V25, V29, V17, V18, V16, V13, V14) + + SHA512ROUND(V0, V1, V2, V3, V4, V26, V30, V18, V19, V17, V14, V15) + SHA512ROUND(V3, V0, V4, V2, V1, V27, V31, V19, V12, V18, V15, V16) + + SHA512ROUND_NO_UPDATE(V2, V3, V1, V4, V0, V28, V24, V12) + SHA512ROUND_NO_UPDATE(V4, V2, V0, V1, V3, V29, V25, V13) + SHA512ROUND_NO_UPDATE(V1, V4, V3, V0, V2, V30, V26, V14) + SHA512ROUND_NO_UPDATE(V0, V1, V2, V3, V4, V31, V27, V15) + + SHA512ROUND_LAST(V3, V0, V4, V2, V1, V24, V16) + SHA512ROUND_LAST(V2, V3, V1, V4, V0, V25, V17) + SHA512ROUND_LAST(V4, V2, V0, V1, V3, V26, V18) + SHA512ROUND_LAST(V1, V4, V3, V0, V2, V27, V19) + + // add result to digest + VADD V0.D2, V8.D2, V8.D2 + VADD V1.D2, V9.D2, V9.D2 + VADD V2.D2, V10.D2, V10.D2 + VADD V3.D2, V11.D2, V11.D2 + SUB $128, R2 + CBNZ R2, loop + + VST1 [V8.D2, V9.D2, V10.D2, V11.D2], (R0) + RET |