// Copyright 2024 Sun Yimin. All rights reserved. // Use of this source code is governed by a MIT-style // license that can be found in the LICENSE file. //go:build !purego #include "textflag.h" #include "sm3_const_asm.s" #define a R1 #define b R2 #define c R3 #define d R4 #define e R5 #define f R6 #define g R7 #define h R8 #define CTX R9 #define INP R10 #define LEN R11 #define END R12 #define y0 R9 #define y1 R11 #define y2 R12 #define XWORD0 V0 #define XWORD1 V1 #define XWORD2 V2 #define XWORD3 V3 #define XTMP0 V4 #define XTMP1 V5 #define XTMP2 V6 #define XTMP3 V7 #define XTMP4 V8 #define XFER V9 #define SS12(a, e, const, ss1, ss2) \ RLL $12, a, ss2; \ // y0 = a <<< 12 ADD $const, e, ss1; \ ADD ss2, ss1; \ // y2 = a <<< 12 + e + T RLL $7, ss1; \ // y2 = SS1 XOR ss1, ss2 #define P0(tt2, tmp, out) \ RLL $9, tt2, tmp; \ RLL $17, tt2, out; \ XOR tmp, out; \ XOR tt2, out // For rounds [0 - 16) // addr1 for w, addr2 for w' #define DO_ROUND_N_0(addr1, addr2, const, a, b, c, d, e, f, g, h) \ ; \ SS12(a, e, const, y2, y0); \ MOVWZ addr1, y1; \ ADD y1, y2; \ // y2 = SS1 + W ADD h, y2; \ // y2 = h + SS1 + W MOVWZ addr2, y1; \ ADD y1, y0; \ // y0 = SS2 + W' ADD d, y0; \ // y0 = d + SS2 + W' ; \ XOR a, b, h; \ XOR c, h; \ ADD y0, h; \ // h = FF(a, b, c) + d + SS2 + W' = tt1 ; \ XOR e, f, y1; \ XOR g, y1; \ ADD y1, y2; \ // y2 = GG(e, f, g) + h + SS1 + W = tt2 ; \ RLL $9, b; \ RLL $19, f; \ ; \ P0(y2, y0, d) // For rounds [16 - 64) // addr1 for w, addr2 for w' #define DO_ROUND_N_1(addr1, addr2, const, a, b, c, d, e, f, g, h) \ ; \ SS12(a, e, const, y2, y0); \ MOVWZ addr1, y1; \ ADD y1, y2; \ // y2 = SS1 + W ADD h, y2; \ // y2 = h + SS1 + W MOVWZ addr2, y1; \ ADD y1, y0; \ // y0 = SS2 + W' ADD d, y0; \ // y0 = d + SS2 + W' ; \ OR a, b, y1; \ AND a, b, h; \ AND c, y1; \ OR y1, h; \ // h = (a AND b) OR (a AND c) OR (b AND c) ADD y0, h; \ // h = FF(a, b, c) + d + SS2 + W' = tt1 ; \ XOR f, g, y1; \ AND e, y1; \ XOR g, y1; \ // y1 = GG2(e, f, g) ADD y1, y2; \ // y2 = GG2(e, f, g) + h + SS1 + W = tt2 ; \ RLL $9, b; \ RLL $19, f; \ ; \ P0(y2, y0, d) // r = s <<< n #define PROLD(s, r, n) \ VERLLF $n, s, r #define MESSAGE_SCHEDULE(XWORD0, XWORD1, XWORD2, XWORD3) \ VSLDB $12, XWORD0, XWORD1, XTMP0; \ // XTMP0 = W[-13] = {w3, w4, w5, w6} PROLD(XTMP0, XTMP1, 7); \ // XTMP1 = W[-13] rol 7 VSLDB $8, XWORD2, XWORD3, XTMP0; \ // XTMP0 = W[-6] = {w10, w11, w12, w13} VX XTMP0, XTMP1, XTMP0; \ // XTMP0 = W[-6] xor (W[-13] rol 7) ; \ // Prepare P1 parameters VSLDB $12, XWORD1, XWORD2, XTMP1; \ // XTMP1 = W[-9] = {w7, w8, w9, w10} VX XTMP1, XWORD0, XTMP1; \ // XTMP1 = W[-9] xor W[-16] VSLDB $4, XWORD3, XWORD2, XTMP3; \ // XTMP3 = W[-3] = {w13, w14, w15, w8} PROLD(XTMP3, XTMP2, 15); \ // XTMP2 = W[-3] rol 15 VX XTMP1, XTMP2, XTMP2; \ // XTMP2 = W[-9] ^ W[-16] ^ (W[-3] rol 15) {ABxx} ; \ // P1 PROLD(XTMP2, XTMP4, 15); \ // XTMP4 = = XTMP2 rol 15 {ABxx} PROLD(XTMP4, XTMP3, 8); \ // XTMP3 = XTMP2 rol 23 {ABxx} VX XTMP2, XTMP4, XTMP4; \ // XTMP4 = XTMP2 XOR (XTMP2 rol 15 {ABxx}) VX XTMP4, XTMP3, XTMP4; \ // XTMP4 = XTMP2 XOR (XTMP2 rol 15 {ABxx}) XOR (XTMP2 rol 23 {ABxx}) ; \ // First 2 words message schedule result VX XTMP4, XTMP0, XTMP2; \ // XTMP2 = {w[0], w[1], ..., ...} ; \ // Prepare P1 parameters VSLDB $4, XWORD3, XTMP2, XTMP3; \ // XTMP3 = W[-3] = {w13, w14, w15, w0} PROLD(XTMP3, XTMP4, 15); \ // XTMP4 = W[-3] rol 15 VX XTMP1, XTMP4, XTMP4; \ // XTMP4 = W[-9] ^ W[-16] ^ (W[-3] rol 15) {ABCD} ; \ // P1 PROLD(XTMP4, XTMP3, 15); \ // XTMP3 = = XTMP4 rol 15 {ABCD} PROLD(XTMP3, XTMP1, 8); \ // XTMP1 = XTMP4 rol 23 {ABCD} VX XTMP4, XTMP3, XTMP3; \ // XTMP3 = XTMP4 XOR (XTMP4 rol 15 {ABCD}) VX XTMP3, XTMP1, XTMP1; \ // XTMP1 = XTMP4 XOR (XTMP4 rol 15 {ABCD}) XOR (XTMP4 rol 23 {ABCD}) ; \ // 4 words message schedule result VX XTMP1, XTMP0, XWORD0; \ // XWORD0 = {w[0], w[1], w[2], w[3]} // For the usage of tmp-xx(SP), I referred to the code of // https://github.com/golang/go/blob/master/src/crypto/md5/md5block_s390x.s // // func block(dig *digest, p []byte) TEXT ·block(SB),NOSPLIT,$72-32 MOVD dig+0(FP), CTX MOVD p+8(FP), INP MOVD p_len+16(FP), LEN AND $-64, LEN LAY (INP)(LEN*1), END CMPBEQ INP, END, end MOVD END, tmp-8(SP) // backup END LMY 0(CTX), a, h loop: STMY a, h, tmp-40(SP) // backup state VLM (INP), XWORD0, XWORD3 schedule_compress: // for w0 - w47 // Do 4 rounds and scheduling VST XWORD0, tmp-56(SP) VX XWORD0, XWORD1, XFER VST XFER, tmp-72(SP) DO_ROUND_N_0(tmp-56(SP), tmp-72(SP), T0, a, b, c, d, e, f, g, h) DO_ROUND_N_0(tmp-52(SP), tmp-68(SP), T1, h, a, b, c, d, e, f, g) MESSAGE_SCHEDULE(XWORD0, XWORD1, XWORD2, XWORD3) DO_ROUND_N_0(tmp-48(SP), tmp-64(SP), T2, g, h, a, b, c, d, e, f) DO_ROUND_N_0(tmp-44(SP), tmp-60(SP), T3, f, g, h, a, b, c, d, e) // Do 4 rounds and scheduling VST XWORD1, tmp-56(SP) VX XWORD1, XWORD2, XFER VST XFER, tmp-72(SP) DO_ROUND_N_0(tmp-56(SP), tmp-72(SP), T4, e, f, g, h, a, b, c, d) DO_ROUND_N_0(tmp-52(SP), tmp-68(SP), T5, d, e, f, g, h, a, b, c) MESSAGE_SCHEDULE(XWORD1, XWORD2, XWORD3, XWORD0) DO_ROUND_N_0(tmp-48(SP), tmp-64(SP), T6, c, d, e, f, g, h, a, b) DO_ROUND_N_0(tmp-44(SP), tmp-60(SP), T7, b, c, d, e, f, g, h, a) // Do 4 rounds and scheduling VST XWORD2, tmp-56(SP) VX XWORD2, XWORD3, XFER VST XFER, tmp-72(SP) DO_ROUND_N_0(tmp-56(SP), tmp-72(SP), T8, a, b, c, d, e, f, g, h) DO_ROUND_N_0(tmp-52(SP), tmp-68(SP), T9, h, a, b, c, d, e, f, g) MESSAGE_SCHEDULE(XWORD2, XWORD3, XWORD0, XWORD1) DO_ROUND_N_0(tmp-48(SP), tmp-64(SP), T10, g, h, a, b, c, d, e, f) DO_ROUND_N_0(tmp-44(SP), tmp-60(SP), T11, f, g, h, a, b, c, d, e) // Do 4 rounds and scheduling VST XWORD3, tmp-56(SP) VX XWORD3, XWORD0, XFER VST XFER, tmp-72(SP) DO_ROUND_N_0(tmp-56(SP), tmp-72(SP), T12, e, f, g, h, a, b, c, d) DO_ROUND_N_0(tmp-52(SP), tmp-68(SP), T13, d, e, f, g, h, a, b, c) MESSAGE_SCHEDULE(XWORD3, XWORD0, XWORD1, XWORD2) DO_ROUND_N_0(tmp-48(SP), tmp-64(SP), T14, c, d, e, f, g, h, a, b) DO_ROUND_N_0(tmp-44(SP), tmp-60(SP), T15, b, c, d, e, f, g, h, a) // Do 4 rounds and scheduling VST XWORD0, tmp-56(SP) VX XWORD0, XWORD1, XFER VST XFER, tmp-72(SP) DO_ROUND_N_1(tmp-56(SP), tmp-72(SP), T16, a, b, c, d, e, f, g, h) DO_ROUND_N_1(tmp-52(SP), tmp-68(SP), T17, h, a, b, c, d, e, f, g) MESSAGE_SCHEDULE(XWORD0, XWORD1, XWORD2, XWORD3) DO_ROUND_N_1(tmp-48(SP), tmp-64(SP), T18, g, h, a, b, c, d, e, f) DO_ROUND_N_1(tmp-44(SP), tmp-60(SP), T19, f, g, h, a, b, c, d, e) // Do 4 rounds and scheduling VST XWORD1, tmp-56(SP) VX XWORD1, XWORD2, XFER VST XFER, tmp-72(SP) DO_ROUND_N_1(tmp-56(SP), tmp-72(SP), T20, e, f, g, h, a, b, c, d) DO_ROUND_N_1(tmp-52(SP), tmp-68(SP), T21, d, e, f, g, h, a, b, c) MESSAGE_SCHEDULE(XWORD1, XWORD2, XWORD3, XWORD0) DO_ROUND_N_1(tmp-48(SP), tmp-64(SP), T22, c, d, e, f, g, h, a, b) DO_ROUND_N_1(tmp-44(SP), tmp-60(SP), T23, b, c, d, e, f, g, h, a) // Do 4 rounds and scheduling VST XWORD2, tmp-56(SP) VX XWORD2, XWORD3, XFER VST XFER, tmp-72(SP) DO_ROUND_N_1(tmp-56(SP), tmp-72(SP), T24, a, b, c, d, e, f, g, h) DO_ROUND_N_1(tmp-52(SP), tmp-68(SP), T25, h, a, b, c, d, e, f, g) MESSAGE_SCHEDULE(XWORD2, XWORD3, XWORD0, XWORD1) DO_ROUND_N_1(tmp-48(SP), tmp-64(SP), T26, g, h, a, b, c, d, e, f) DO_ROUND_N_1(tmp-44(SP), tmp-60(SP), T27, f, g, h, a, b, c, d, e) // Do 4 rounds and scheduling VST XWORD3, tmp-56(SP) VX XWORD3, XWORD0, XFER VST XFER, tmp-72(SP) DO_ROUND_N_1(tmp-56(SP), tmp-72(SP), T28, e, f, g, h, a, b, c, d) DO_ROUND_N_1(tmp-52(SP), tmp-68(SP), T29, d, e, f, g, h, a, b, c) MESSAGE_SCHEDULE(XWORD3, XWORD0, XWORD1, XWORD2) DO_ROUND_N_1(tmp-48(SP), tmp-64(SP), T30, c, d, e, f, g, h, a, b) DO_ROUND_N_1(tmp-44(SP), tmp-60(SP), T31, b, c, d, e, f, g, h, a) // Do 4 rounds and scheduling VST XWORD0, tmp-56(SP) VX XWORD0, XWORD1, XFER VST XFER, tmp-72(SP) DO_ROUND_N_1(tmp-56(SP), tmp-72(SP), T32, a, b, c, d, e, f, g, h) DO_ROUND_N_1(tmp-52(SP), tmp-68(SP), T33, h, a, b, c, d, e, f, g) MESSAGE_SCHEDULE(XWORD0, XWORD1, XWORD2, XWORD3) DO_ROUND_N_1(tmp-48(SP), tmp-64(SP), T34, g, h, a, b, c, d, e, f) DO_ROUND_N_1(tmp-44(SP), tmp-60(SP), T35, f, g, h, a, b, c, d, e) // Do 4 rounds and scheduling VST XWORD1, tmp-56(SP) VX XWORD1, XWORD2, XFER VST XFER, tmp-72(SP) DO_ROUND_N_1(tmp-56(SP), tmp-72(SP), T36, e, f, g, h, a, b, c, d) DO_ROUND_N_1(tmp-52(SP), tmp-68(SP), T37, d, e, f, g, h, a, b, c) MESSAGE_SCHEDULE(XWORD1, XWORD2, XWORD3, XWORD0) DO_ROUND_N_1(tmp-48(SP), tmp-64(SP), T38, c, d, e, f, g, h, a, b) DO_ROUND_N_1(tmp-44(SP), tmp-60(SP), T39, b, c, d, e, f, g, h, a) // Do 4 rounds and scheduling VST XWORD2, tmp-56(SP) VX XWORD2, XWORD3, XFER VST XFER, tmp-72(SP) DO_ROUND_N_1(tmp-56(SP), tmp-72(SP), T40, a, b, c, d, e, f, g, h) DO_ROUND_N_1(tmp-52(SP), tmp-68(SP), T41, h, a, b, c, d, e, f, g) MESSAGE_SCHEDULE(XWORD2, XWORD3, XWORD0, XWORD1) DO_ROUND_N_1(tmp-48(SP), tmp-64(SP), T42, g, h, a, b, c, d, e, f) DO_ROUND_N_1(tmp-44(SP), tmp-60(SP), T43, f, g, h, a, b, c, d, e) // Do 4 rounds and scheduling VST XWORD3, tmp-56(SP) VX XWORD3, XWORD0, XFER VST XFER, tmp-72(SP) DO_ROUND_N_1(tmp-56(SP), tmp-72(SP), T44, e, f, g, h, a, b, c, d) DO_ROUND_N_1(tmp-52(SP), tmp-68(SP), T45, d, e, f, g, h, a, b, c) MESSAGE_SCHEDULE(XWORD3, XWORD0, XWORD1, XWORD2) DO_ROUND_N_1(tmp-48(SP), tmp-64(SP), T46, c, d, e, f, g, h, a, b) DO_ROUND_N_1(tmp-44(SP), tmp-60(SP), T47, b, c, d, e, f, g, h, a) // w48 - w63 processed with only 4 rounds scheduling (last 16 rounds) // Do 4 rounds VST XWORD0, tmp-56(SP) VX XWORD0, XWORD1, XFER VST XFER, tmp-72(SP) DO_ROUND_N_1(tmp-56(SP), tmp-72(SP), T48, a, b, c, d, e, f, g, h) DO_ROUND_N_1(tmp-52(SP), tmp-68(SP), T49, h, a, b, c, d, e, f, g) DO_ROUND_N_1(tmp-48(SP), tmp-64(SP), T50, g, h, a, b, c, d, e, f) DO_ROUND_N_1(tmp-44(SP), tmp-60(SP), T51, f, g, h, a, b, c, d, e) VST XWORD1, tmp-56(SP) VX XWORD1, XWORD2, XFER VST XFER, tmp-72(SP) DO_ROUND_N_1(tmp-56(SP), tmp-72(SP), T52, e, f, g, h, a, b, c, d) DO_ROUND_N_1(tmp-52(SP), tmp-68(SP), T53, d, e, f, g, h, a, b, c) DO_ROUND_N_1(tmp-48(SP), tmp-64(SP), T54, c, d, e, f, g, h, a, b) DO_ROUND_N_1(tmp-44(SP), tmp-60(SP), T55, b, c, d, e, f, g, h, a) VST XWORD2, tmp-56(SP) VX XWORD2, XWORD3, XFER VST XFER, tmp-72(SP) MESSAGE_SCHEDULE(XWORD0, XWORD1, XWORD2, XWORD3) DO_ROUND_N_1(tmp-56(SP), tmp-72(SP), T56, a, b, c, d, e, f, g, h) DO_ROUND_N_1(tmp-52(SP), tmp-68(SP), T57, h, a, b, c, d, e, f, g) DO_ROUND_N_1(tmp-48(SP), tmp-64(SP), T58, g, h, a, b, c, d, e, f) DO_ROUND_N_1(tmp-44(SP), tmp-60(SP), T59, f, g, h, a, b, c, d, e) VST XWORD3, tmp-56(SP) VX XWORD3, XWORD0, XFER VST XFER, tmp-72(SP) DO_ROUND_N_1(tmp-56(SP), tmp-72(SP), T60, e, f, g, h, a, b, c, d) DO_ROUND_N_1(tmp-52(SP), tmp-68(SP), T61, d, e, f, g, h, a, b, c) DO_ROUND_N_1(tmp-48(SP), tmp-64(SP), T62, c, d, e, f, g, h, a, b) DO_ROUND_N_1(tmp-44(SP), tmp-60(SP), T63, b, c, d, e, f, g, h, a) MOVWZ tmp-40(SP), END XOR END, a MOVWZ tmp-36(SP), END XOR END, b MOVWZ tmp-32(SP), END XOR END, c MOVWZ tmp-28(SP), END XOR END, d MOVWZ tmp-24(SP), END XOR END, e MOVWZ tmp-20(SP), END XOR END, f MOVWZ tmp-16(SP), END XOR END, g MOVWZ tmp-12(SP), END XOR END, h LA 64(INP), INP MOVD tmp-8(SP), END CMPBLT INP, END, loop end: MOVD dig+0(FP), CTX STMY a, h, 0(CTX) RET