mirror of
https://github.com/guanzhi/GmSSL.git
synced 2026-05-13 03:46:26 +08:00
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
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ZUC_UINT7 D[16] = {
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0x22,
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0x2F,
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0x24,
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0x2A,
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0x6D,
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0x40,
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0x40,
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0x40,
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0x40,
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0x40,
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0x40,
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0x40,
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0x52,
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0x10,
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0x30
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};
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void ZUC_set_key(ZUC_KEY *key, const unsigned char *user_key, const unsigned char *iv)
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{
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LFSR[0] = MAKEU31(K[0], D[0], K[21], K[16]);
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LFSR[1] = MAKEU31(K[1], D[1], K[22], K[17]);
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LFSR[2] = MAKEU31(K[2], D[2], K[23], K[18]);
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LFSR[3] = MAKEU31(K[3], D[3], K[24], K[19]);
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LFSR[4] = MAKEU31(K[4], D[4], K[25], K[20]);
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LFSR[5] = MAKEU31(IV[0], (D[5] | IV[17]), K[5], K[26]);
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LFSR[6] = MAKEU31(IV[1], (D[6] | IV[18]), K[6], K[27]);
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LFSR[7] = MAKEU31(IV[10], (D[7] | IV[19]), K[7], IV[2]);
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LFSR[8] = MAKEU31(K[8], (D[8] | IV[20]), IV[13], IV[11]);
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LFSR[9] = MAKEU31(K[9], (D[9] | IV[21]), IV[12], IV[4]);
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LFSR[10] = MAKEU31(IV[5], (D[10] | IV[22]), K[10], K[28]);
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LFSR[11] = MAKEU31(K[11], (D[11] | IV[23]), IV[6], IV[13]);
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LFSR[12] = MAKEU31(K[12], (D[12] | IV[24]), IV[7], IV[14]);
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LFSR[13] = MAKEU31(K[13], D[13], IV[15], IV[8]);
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LFSR[14] = MAKEU31(K[14], (D[14] | (K[31] >> 4)), IV[16], IV[9]);
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LFSR[15] = MAKEU31(K[15], (D[15] | (K[31] & 0xF0)), K[30], K[29]);
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R1 = R2 = 0;
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for (i = 0; i < 32; i++) {
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BitReconstruction3(X0, X1, X2);
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}
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}
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