Security, Symmetric Encryption, Cryptography, Encryption.
= b[4]; p[0] = a0*b0 + a1*b4*5 + a2*b3*5 + a3*b2*5 + a4*b1*5; p[1] = a0*b1 + a1*b0 + a2*b4*5 + a3*b3*5 + a4*b2*5; p[2] = a0*b2 + a1*b1 + a2*b0 + a3*b4*5 + a4*b3*5; p[3] = a0*b3 + a1*b2 + a2*b1 + a3*b0 + a4*b4*5; p[4] = a0*b4 + a1*b3 + a2*b2 + a3*b1 + a4*b0 ; } Here is how the carry function works.