Converting from char to byte

[bythos]

well a int is 4 bytes long in 32bit architecture and 8 bytes in 64bit architecture so what you should do it instead of using int is try using "unsigned char". and cast the result of qrand to "unsigned char"

unsigned char n; 
n = (unsigned char) qrand() % 255;

unsigned char n; 
n = (unsigned char) qrand() % 255;

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[Tanuki-no Torigava]

Did you look at quint8, quint16, quint32 or quint64? You can use quint32[4] to have you 128 bits or quint8[16] to process that byte by byte.