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// 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. | ||
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//go:build (ppc64 || ppc64le) && !purego | ||
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package sm4 | ||
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import ( | ||
"encoding/binary" | ||
"fmt" | ||
"runtime" | ||
"testing" | ||
) | ||
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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) | ||
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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]) | ||
} | ||
} |