-rw-r--r-- 821 saferewrite-20240515/src/encode_761x1531round/ref/Encode.c raw
#include "Encode.h" #include "crypto_uint32.h" /* 0 <= R[i] < M[i] < 16384 */ void Encode(unsigned char *out,const crypto_uint16 *R,const crypto_uint16 *M,long long len) { if (len == 1) { crypto_uint16 r = R[0]; crypto_uint16 m = M[0]; while (m > 1) { *out++ = r; r >>= 8; m = (m+255)>>8; } } if (len > 1) { crypto_uint16 R2[(len+1)/2]; crypto_uint16 M2[(len+1)/2]; long long i; for (i = 0;i < len-1;i += 2) { crypto_uint32 m0 = M[i]; crypto_uint32 r = R[i]+R[i+1]*m0; crypto_uint32 m = M[i+1]*m0; while (m >= 16384) { *out++ = r; r >>= 8; m = (m+255)>>8; } R2[i/2] = r; M2[i/2] = m; } if (i < len) { R2[i/2] = R[i]; M2[i/2] = M[i]; } Encode(out,R2,M2,(len+1)/2); } }