2 chacha-merged.c version 20080118
26   (U32V((v) << (n)) | ((v) >> (32 - (n))))
53 static const char sigma[16] = "expand 32-byte k";
54 static const char tau[16] = "expand 16-byte k";
61   x->input[4] = U8TO32_LITTLE(k + 0);  in chacha_keysetup()
62   x->input[5] = U8TO32_LITTLE(k + 4);  in chacha_keysetup()
63   x->input[6] = U8TO32_LITTLE(k + 8);  in chacha_keysetup()
64   x->input[7] = U8TO32_LITTLE(k + 12);  in chacha_keysetup()
71   x->input[8] = U8TO32_LITTLE(k + 0);  in chacha_keysetup()
72   x->input[9] = U8TO32_LITTLE(k + 4);  in chacha_keysetup()
73   x->input[10] = U8TO32_LITTLE(k + 8);  in chacha_keysetup()
74   x->input[11] = U8TO32_LITTLE(k + 12);  in chacha_keysetup()
75   x->input[0] = U8TO32_LITTLE(constants + 0);  in chacha_keysetup()
76   x->input[1] = U8TO32_LITTLE(constants + 4);  in chacha_keysetup()
77   x->input[2] = U8TO32_LITTLE(constants + 8);  in chacha_keysetup()
78   x->input[3] = U8TO32_LITTLE(constants + 12);  in chacha_keysetup()
85   x->input[12] = counter == NULL ? 0 : U8TO32_LITTLE(counter + 0);  in chacha_ivsetup()
86   x->input[13] = counter == NULL ? 0 : U8TO32_LITTLE(counter + 4);  in chacha_ivsetup()
87   x->input[14] = U8TO32_LITTLE(iv + 0);  in chacha_ivsetup()
88   x->input[15] = U8TO32_LITTLE(iv + 4);  in chacha_ivsetup()
92   x->input[12] = U8TO32_LITTLE(counter + 0);  in chacha_ivsetup()
93   x->input[13] = U8TO32_LITTLE(counter + 4);  in chacha_ivsetup()
94   x->input[14] = U8TO32_LITTLE(counter + 8);  in chacha_ivsetup()
95   x->input[15] = U8TO32_LITTLE(counter + 12);  in chacha_ivsetup()
103     U32TO8_LITTLE(counter + 0, x->input[12]);  in chacha_ctrsave()
104     U32TO8_LITTLE(counter + 4, x->input[13]);  in chacha_ctrsave()
105     U32TO8_LITTLE(counter + 8, x->input[14]);  in chacha_ctrsave()
106     U32TO8_LITTLE(counter + 12, x->input[15]);  in chacha_ctrsave()
121   j0 = x->input[0];  in chacha_encrypt_bytes()
122   j1 = x->input[1];  in chacha_encrypt_bytes()
123   j2 = x->input[2];  in chacha_encrypt_bytes()
124   j3 = x->input[3];  in chacha_encrypt_bytes()
125   j4 = x->input[4];  in chacha_encrypt_bytes()
126   j5 = x->input[5];  in chacha_encrypt_bytes()
127   j6 = x->input[6];  in chacha_encrypt_bytes()
128   j7 = x->input[7];  in chacha_encrypt_bytes()
129   j8 = x->input[8];  in chacha_encrypt_bytes()
130   j9 = x->input[9];  in chacha_encrypt_bytes()
131   j10 = x->input[10];  in chacha_encrypt_bytes()
132   j11 = x->input[11];  in chacha_encrypt_bytes()
133   j12 = x->input[12];  in chacha_encrypt_bytes()
134   j13 = x->input[13];  in chacha_encrypt_bytes()
135   j14 = x->input[14];  in chacha_encrypt_bytes()
136   j15 = x->input[15];  in chacha_encrypt_bytes()
163     for (i = 20;i > 0;i -= 2) {  in chacha_encrypt_bytes()
245       x->input[12] = j12;  in chacha_encrypt_bytes()
246       x->input[13] = j13;  in chacha_encrypt_bytes()
248       x->input[14] = j14;  in chacha_encrypt_bytes()
249       x->input[15] = j15;  in chacha_encrypt_bytes()
253     bytes -= 64;  in chacha_encrypt_bytes()