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ppc64x, check VPMSUMD detail

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Sun Yimin 2024-09-26 17:31:15 +08:00 committed by GitHub
parent 018790709a
commit 425e65c16d
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3 changed files with 47 additions and 8 deletions
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5
sm3/sm3block_ppc64x.s
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@ -136,10 +136,7 @@ GLOBL ·flip_mask(SB), RODATA, $16
P0(y2, y0, d)
// r = s <<< n
// Due to VSPLTISW's limitation, the n MUST be [0, 15],
// If n > 15, we have to call it multiple times.
// VSPLTISW takes a 5-bit immediate value as an operand.
// I also did NOT find one vector instruction to use immediate value for ROTL.
// Due to VSPLTISW's limitation, the n MUST be [0, 31]
#define PROLD(s, r, n) \
VSPLTISW $n, XFER \
VRLW s, XFER, r

5
sm3/sm3blocks_ppc64x.s
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@ -66,10 +66,7 @@ GLOBL ·mask(SB), RODATA, $80
#endif // defined(GOARCH_ppc64le)
// r = s <<< n
// Due to VSPLTISW's limitation, the n MUST be [0, 15],
// If n > 15, we have to call it multiple times.
// VSPLTISW takes a 5-bit immediate value as an operand.
// I also did NOT find one vector instruction to use immediate value for ROTL.
// Due to VSPLTISW's limitation, the n MUST be [0, 31]
#define PROLD(s, r, n) \
VSPLTISW $n, TMP5 \
VRLW s, TMP5, r

45
sm4/gcm_ppc64x_test.go Normal file
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@ -0,0 +1,45 @@
// 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 (ppc64 || ppc64le) && !purego
package sm4
import (
"encoding/binary"
"fmt"
"runtime"
"testing"
)
func TestCmul(t *testing.T) {
key := make([]byte, 16)
c1 := &sm4CipherAsm{sm4Cipher{}, 4, 4 * BlockSize}
expandKeyAsm(&key[0], &ck[0], &c1.enc[0], &c1.dec[0], INST_AES)
hle := make([]byte, gcmBlockSize)
c1.Encrypt(hle, hle)
if fmt.Sprintf("%x", hle) != "9f1f7bff6f5511384d9430531e538fd3" {
t.Errorf("1 got %x", hle)
}
var h1, h2 uint64
// Reverse the bytes in each 8 byte chunk
// Load little endian, store big endian
if runtime.GOARCH == "ppc64le" {
h1 = binary.LittleEndian.Uint64(hle[:8])
h2 = binary.LittleEndian.Uint64(hle[8:])
} else {
h1 = binary.BigEndian.Uint64(hle[:8])
h2 = binary.BigEndian.Uint64(hle[8:])
}
binary.BigEndian.PutUint64(hle[:8], h1)
binary.BigEndian.PutUint64(hle[8:], h2)
if fmt.Sprintf("%x", hle) != "3811556fff7b1f9fd38f531e0530944d" {
t.Errorf("2 got %x", hle)
}
aead, _ := c1.NewGCM(12, 16)
for i := 0; i < 256; i += 16 {
fmt.Printf("%x\n", aead.(*gcmAsm).productTable[i:i+16])
}
}