2026-08-12 08:29:06 -05:00
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//+------------------------------------------------------------------+
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//| Def.mqh |
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//| Copyright 2026, Niquel Mendoza |
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//| https://www.mql5.com |
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//+------------------------------------------------------------------+
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#property copyright "Copyright 2026, Niquel Mendoza"
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#property link "https://www.mql5.com"
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#property strict
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#ifndef CRYPTOBYLEO_SRC_SIMETRIC_CHACHA20_DEF_MQH
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#define CRYPTOBYLEO_SRC_SIMETRIC_CHACHA20_DEF_MQH
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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namespace TSN
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{
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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// s = state
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2026-08-12 13:31:16 -05:00
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// b = bytes
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#define CHACHA20_KEYSIZEB (32)
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#define CHACHA20_STATE_S (16)
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#define CHACHA20_KEYSTREAM_SIZEB (64)
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// tamaño para uint32_t (para bytes compeltos el tamaño de key strema de es de 64) para u32 es de16
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#define CHACHA20_KEYSTREAM_SIZE_U32 (16)
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#define CHACHA20_IVNONE_B (12)
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#define CHACHA20_STATE_IDX_CNT (12)
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//---- Macro de utildiades
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// rotacion a la izuqirda 32
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#define CHACHA20_ROT32L(x, n) ((x << n) | (x >> (32 - n)))
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//--- Macro base del algoritmo la funcion QR
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#define CHACHA20_QR(a, b, c, d) \
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a += b; d ^= a; d = CHACHA20_ROT32L(d, 16); \
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c += d; b ^= c; b = CHACHA20_ROT32L(b, 12); \
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a += b; d ^= a; d = CHACHA20_ROT32L(d, 8); \
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c += d; b ^= c; b = CHACHA20_ROT32L(b, 7);
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//---- Macro que eqvuila a una ronda completa..
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// ¿Aplicamos en columnas luego en diagnoleas..
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#define CHACHA20_DOUBLE_ROUND \
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CHACHA20_QR(x0, x4, x8, x12) \
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CHACHA20_QR(x1, x5, x9, x13) \
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CHACHA20_QR(x2, x6, x10, x14) \
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CHACHA20_QR(x3, x7, x11, x15) \
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CHACHA20_QR(x0, x5, x10, x15) \
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CHACHA20_QR(x1, x6, x11, x12) \
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CHACHA20_QR(x2, x7, x8, x13) \
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CHACHA20_QR(x3, x4, x9, x14)
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2026-08-12 08:29:06 -05:00
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}
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//+------------------------------------------------------------------+
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2026-08-12 13:31:16 -05:00
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#endif // CRYPTOBYLEO_SRC_SIMETRIC_CHACHA20_DEF_MQH
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