cybercyst/go
1
0
Fork 0
mirror of https://github.com/golang/go.git synced 2025-05-05 15:43:04 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

crypto/internal/fips140/aes: actually use the VTBL instruction on arm64

Browse Source 
Support for the VTBL instruction was added in CL 110015 - use it
directly, rather than using WORD encodings. Note that one of the
WORD encodings does not actually match the instruction in the
comment - use the instruction that matches the existing encoding
instead.

Change-Id: I1933162f8144a6b86b38e8b550d36907131b1dd4
Reviewed-on: https://go-review.googlesource.com/c/go/+/666795
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
Joel Sing 2025-04-19 15:57:37 +10:00
parent a204ed53d9
commit c893e1cf82
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
src/crypto/internal/fips140/aes/aes_arm64.s
View File

@ -134,7 +134,7 @@ TEXT ·expandKeyAsm(SB),NOSPLIT,$0
MOVW $0x1b, R14 MOVW $0x1b, R14
ks128Loop: ks128Loop:
VMOV R7, V2.S[0] VMOV R7, V2.S[0]
WORD $0x4E030042 // TBL V3.B16, [V2.B16], V2.B16 VTBL V3.B16, [V2.B16], V2.B16
AESE V0.B16, V2.B16 // Use AES to compute the SBOX AESE V0.B16, V2.B16 // Use AES to compute the SBOX
EORW R13, R4 EORW R13, R4
LSLW $1, R13 // Compute next Rcon LSLW $1, R13 // Compute next Rcon
@ -180,7 +180,7 @@ ks192:
ks192Loop: ks192Loop:
STPW.P (R6, R7), 8(R10) STPW.P (R6, R7), 8(R10)
VMOV R7, V2.S[0] VMOV R7, V2.S[0]
WORD $0x4E030042 //TBL V3.B16, [V2.B16], V2.B16 VTBL V3.B16, [V2.B16], V2.B16
AESE V0.B16, V2.B16 AESE V0.B16, V2.B16
EORW R13, R2 EORW R13, R2
LSLW $1, R13 LSLW $1, R13
@ -233,7 +233,7 @@ ks256Loop:
STPW.P (R4, R5), 8(R10) STPW.P (R4, R5), 8(R10)
STPW.P (R6, R7), 8(R10) STPW.P (R6, R7), 8(R10)
VMOV R7, V2.S[0] VMOV R7, V2.S[0]
WORD $0x4E030042 //TBL V3.B16, [V2.B16], V2.B16 VTBL V3.B16, [V2.B16], V2.B16
AESE V0.B16, V2.B16 AESE V0.B16, V2.B16
EORW R13, R0 EORW R13, R0
LSLW $1, R13 LSLW $1, R13
@ -244,7 +244,7 @@ ks256Loop:
EORW R1, R2 EORW R1, R2
EORW R2, R3 EORW R2, R3
VMOV R3, V2.S[0] VMOV R3, V2.S[0]
WORD $0x4E040042 //TBL V3.B16, [V2.B16], V2.B16 VTBL V4.B16, [V2.B16], V2.B16
AESE V0.B16, V2.B16 AESE V0.B16, V2.B16
VMOV V2.S[0], R9 VMOV V2.S[0], R9
EORW R9, R4 EORW R9, R4