aesvec.c

escription: The Rijndael Encryption algorithm has been recently recognized as an AES (Advanced Encry

    if(outf)
    {
        if(round < 100)
            
            fprintf(outf, "\nR[%02i].%s", round, xt);

        for(col = 0; col < Ncol; ++col)
            for(row = 0; row < 4; ++row)
        
            fprintf(outf, "%c%c", hxx[(bval(b[col][row],0) >> 4) & 15], hxx[bval(b[col][row],0) & 15]);
    }
} 

void bytes_out(const char* xt, const byte b[], const word len)
{   word i;
    if(outf)
    {
        fprintf(outf, "\n%s", xt);

        for(i = 0; i < len; ++i)
        {
            fprintf(outf, "%c%c", hxx[(b[i] >> 4) & 15], hxx[b[i] & 15]);
        }
    }
}

#endif

// The Forward Cipher

cf_dec c_name(encrypt)(const byte input[], byte output[], const c_name(aes) *cx) 
{   byte state[Mcol][4];
    word Shr[Nrow], rnd;

    if(!(cx->mode & 0x01)) return aes_bad;

    Shr[1] = 1; 
    Shr[2] = (nc == 8 ? 3 : 2); 
    Shr[3] = (nc  > 6 ? 4 : 3);

    GetState(state, input, nc);
    block_out(0, "input   ", state, nc);
    XorRoundKey(state, cx->e_key, nc);
    block_out(0, "k_sch   ", (cwa_ptr*)(cx->e_key), nc);

    for(rnd = 1; rnd < cx->Nrnd; ++rnd)
    {
        block_out(rnd, "start   ", state, nc);
        SubBytes(state, nc);
        block_out(rnd, "s_box   ", state, nc);
        ShiftRows(state, nc, Shr);
        block_out(rnd, "s_row   ", state, nc);
        MixColumns(state, nc);
        block_out(rnd, "m_col   ", state, nc);
        XorRoundKey(state, cx->e_key + rnd * nc, nc);
        block_out(rnd, "k_sch   ", (cwa_ptr*)(cx->e_key + rnd * nc), nc);
    }

    block_out(cx->Nrnd, "start   ", state, nc);
    SubBytes(state, nc);
    block_out(cx->Nrnd, "s_box   ", state, nc);
    ShiftRows(state, nc, Shr);
    block_out(cx->Nrnd, "s_row   ", state, nc);

    XorRoundKey(state, cx->e_key + cx->Nrnd * nc, nc);
    block_out(cx->Nrnd, "k_sch   ", (cwa_ptr*)(cx->e_key + cx->Nrnd * nc), nc);
    PutState(state, output, nc);
    block_out(cx->Nrnd, "output  ", state, nc);

    return aes_good;
}

// The Inverse Cipher (in normal and modified equivalent form)
 
cf_dec c_name(decrypt)(const byte input[], byte output[], const c_name(aes) *cx)
{   byte state[Mcol][4];
    word Shr[Nrow], rnd;

    if(!(cx->mode & 0x02)) return aes_bad;

    Shr[1] = 1; 
    Shr[2] = (nc == 8 ? 3 : 2); 
    Shr[3] = (nc  > 6 ? 4 : 3);

    GetState(state, input, nc);
    block_out(0, "iinput  ", state, nc);
    XorRoundKey(state, cx->e_key + cx->Nrnd * nc, nc);
    block_out(0, "ik_sch  ", 
        (cwa_ptr*)(cx->e_key + cx->Nrnd * nc), nc);

    if(mod)
    {
        for(rnd = cx->Nrnd - 1; rnd > 0; --rnd)
        {
            block_out(cx->Nrnd - rnd, "istart  ", state, nc);
            InvSubBytes(state, nc);
            block_out(cx->Nrnd - rnd, "is_box  ", state, nc);
            InvShiftRows(state, nc, Shr);
            block_out(cx->Nrnd - rnd, "is_row  ", state, nc);
            InvMixColumns(state, nc);
            block_out(cx->Nrnd - rnd, "im_col  ", state, nc);
            XorRoundKey(state, cx->d_key + rnd * nc, nc);
            block_out(cx->Nrnd - rnd, "ik_sch  ", 
                (cwa_ptr*)(cx->d_key + rnd * nc), nc);
        }

        block_out(cx->Nrnd, "istart  ", state, nc);
        InvSubBytes(state, nc);
        block_out(cx->Nrnd, "is_box  ", state, nc);
        InvShiftRows(state, nc, Shr);
        block_out(cx->Nrnd, "is_row  ", state, nc);
    }
    else
    {
        for(rnd = cx->Nrnd - 1; rnd > 0; --rnd)
        {
            block_out(cx->Nrnd - rnd, "istart  ", state, nc);
            InvShiftRows(state, nc, Shr);
            block_out(cx->Nrnd - rnd, "is_row  ", state, nc);
            InvSubBytes(state, nc);
            block_out(cx->Nrnd - rnd, "is_box  ", state, nc);
            XorRoundKey(state, cx->e_key + rnd * nc, nc);
            block_out(cx->Nrnd - rnd, "ik_sch  ", 
                (cwa_ptr*)(cx->e_key + rnd * nc), nc);
            block_out(cx->Nrnd - rnd, "ik_add  ", state, nc);
            InvMixColumns(state, nc);
        }

        block_out(cx->Nrnd, "istart  ", state, nc);
        InvShiftRows(state, nc, Shr);
        block_out(cx->Nrnd, "is_row  ", state, nc);
        InvSubBytes(state, nc);
        block_out(cx->Nrnd, "is_box  ", state, nc);
    }

    XorRoundKey(state, cx->e_key, nc);
    block_out(cx->Nrnd, "ik_sch  ", (cwa_ptr*)(cx->e_key), nc);
    PutState(state, output, nc);
    block_out(cx->Nrnd, "ioutput ", state, nc);

    return aes_good;
}

byte pih[32] = // hex digits of pi
{
    0x32, 0x43, 0xf6, 0xa8, 0x88, 0x5a, 0x30, 0x8d,
    0x31, 0x31, 0x98, 0xa2, 0xe0, 0x37, 0x07, 0x34,
    0x4a, 0x40, 0x93, 0x82, 0x22, 0x99, 0xf3, 0x1d,
    0x00, 0x82, 0xef, 0xa9, 0x8e, 0xc4, 0xe6, 0xc8
};

byte exh[32] =  // hex digits of e
{
    0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
    0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c,
    0x76, 0x2e, 0x71, 0x60, 0xf3, 0x8b, 0x4d, 0xa5,
    0x6a, 0x78, 0x4d, 0x90, 0x45, 0x19, 0x0c, 0xfe
};

byte res[5][5][32] = 
{ 
    {
        { 0x39, 0x25, 0x84, 0x1d, 0x02, 0xdc, 0x09, 0xfb, 
          0xdc, 0x11, 0x85, 0x97, 0x19, 0x6a, 0x0b, 0x32 
        },
        {
         0x23, 0x1d, 0x84, 0x46, 0x39, 0xb3, 0x1b, 0x41, 
         0x22, 0x11, 0xcf, 0xe9, 0x37, 0x12, 0xb8, 0x80
        },
        { 0xf9, 0xfb, 0x29, 0xae, 0xfc, 0x38, 0x4a, 0x25, 
          0x03, 0x40, 0xd8, 0x33, 0xb8, 0x7e, 0xbc, 0x00
        },
        {
          0x8f, 0xaa, 0x8f, 0xe4, 0xde, 0xe9, 0xeb, 0x17,
          0xca, 0xa4, 0x79, 0x75, 0x02, 0xfc, 0x9d, 0x3f
        },
        { 0x1a, 0x6e, 0x6c, 0x2c, 0x66, 0x2e, 0x7d, 0xa6, 
          0x50, 0x1f, 0xfb, 0x62, 0xbc, 0x9e, 0x93, 0xf3
        }
    },
    {
        {
          0x16, 0xe7, 0x3a, 0xec, 0x92, 0x13, 0x14, 0xc2, 
          0x9d, 0xf9, 0x05, 0x43, 0x2b, 0xc8, 0x96, 0x8a, 
          0xb6, 0x4b, 0x1f, 0x51
        },
        {
          0x05, 0x53, 0xeb, 0x69, 0x16, 0x70, 0xdd, 0x8a, 
          0x5a, 0x5b, 0x5a, 0xdd, 0xf1, 0xaa, 0x74, 0x50, 
          0xf7, 0xa0, 0xe5, 0x87
        },
        { 
          0x73, 0xcd, 0x6f, 0x34, 0x23, 0x03, 0x67, 0x90, 
          0x46, 0x3a, 0xa9, 0xe1, 0x9c, 0xfc, 0xde, 0x89, 
          0x4e, 0xa1, 0x66, 0x23
        },
        { 
          0x60, 0x1b, 0x5d, 0xcd, 0x1c, 0xf4, 0xec, 0xe9,
          0x54, 0xc7, 0x40, 0x44, 0x53, 0x40, 0xbf, 0x0a,
          0xfd, 0xc0, 0x48, 0xdf
        },
        {
          0x57, 0x9e, 0x93, 0x0b, 0x36, 0xc1, 0x52, 0x9a, 
          0xa3, 0xe8, 0x66, 0x28, 0xba, 0xcf, 0xe1, 0x46, 
          0x94, 0x28, 0x82, 0xcf 
        }
    },
    {
        { 0xb2, 0x4d, 0x27, 0x54, 0x89, 0xe8, 0x2b, 0xb8, 
          0xf7, 0x37, 0x5e, 0x0d, 0x5f, 0xcd, 0xb1, 0xf4, 
          0x81, 0x75, 0x7c, 0x53, 0x8b, 0x65, 0x14, 0x8a
        },
        {
          0x73, 0x8d, 0xae, 0x25, 0x62, 0x0d, 0x3d, 0x3b, 
          0xef, 0xf4, 0xa0, 0x37, 0xa0, 0x42, 0x90, 0xd7, 
          0x3e, 0xb3, 0x35, 0x21, 0xa6, 0x3e, 0xa5, 0x68 
        },
        { 0x72, 0x5a, 0xe4, 0x3b, 0x5f, 0x31, 0x61, 0xde, 
          0x80, 0x6a, 0x7c, 0x93, 0xe0, 0xbc, 0xa9, 0x3c,
          0x96, 0x7e, 0xc1, 0xae, 0x1b, 0x71, 0xe1, 0xcf
        },
        {
          0xbb, 0xfc, 0x14, 0x18, 0x0a, 0xfb, 0xf6, 0xa3,
          0x63, 0x82, 0xa0, 0x61, 0x84, 0x3f, 0x0b, 0x63,
          0xe7, 0x69, 0xac, 0xdc, 0x98, 0x76, 0x91, 0x30
        },
        { 0x0e, 0xba, 0xcf, 0x19, 0x9e, 0x33, 0x15, 0xc2, 
          0xe3, 0x4b, 0x24, 0xfc, 0xc7, 0xc4, 0x6e, 0xf4, 
          0x38, 0x8a, 0xa4, 0x75, 0xd6, 0x6c, 0x19, 0x4c
        }
    },
    {
        {
          0xb0, 0xa8, 0xf7, 0x8f, 0x6b, 0x3c, 0x66, 0x21, 
          0x3f, 0x79, 0x2f, 0xfd, 0x2a, 0x61, 0x63, 0x1f, 
          0x79, 0x33, 0x14, 0x07, 0xa5, 0xe5, 0xc8, 0xd3, 
          0x79, 0x3a, 0xce, 0xb1
        },
        {
          0x08, 0xb9, 0x99, 0x44, 0xed, 0xfc, 0xe3, 0x3a, 
          0x2a, 0xcb, 0x13, 0x11, 0x83, 0xab, 0x01, 0x68, 
          0x44, 0x6b, 0x2d, 0x15, 0xe9, 0x58, 0x48, 0x00, 
          0x10, 0xf5, 0x45, 0xe3
        },
        {
          0xbe, 0x4c, 0x59, 0x7d, 0x8f, 0x7e, 0xfe, 0x22, 
          0xa2, 0xf7, 0xe5, 0xb1, 0x93, 0x8e, 0x25, 0x64, 
          0xd4, 0x52, 0xa5, 0xbf, 0xe7, 0x23, 0x99, 0xc7, 
          0xaf, 0x11, 0x01, 0xe2
        },
        {
          0xef, 0x52, 0x95, 0x98, 0xec, 0xbc, 0xe2, 0x97,
          0x81, 0x1b, 0x49, 0xbb, 0xed, 0x2c, 0x33, 0xbb,
          0xe1, 0x24, 0x1d, 0x6e, 0x1a, 0x83, 0x3d, 0xbe,
          0x11, 0x95, 0x69, 0xe8
        },
        {
          0x02, 0xfa, 0xfc, 0x20, 0x01, 0x76, 0xed, 0x05, 
          0xde, 0xb8, 0xed, 0xb8, 0x2a, 0x35, 0x55, 0xb0, 
          0xb1, 0x0d, 0x47, 0xa3, 0x88, 0xdf, 0xd5, 0x9c, 
          0xab, 0x2f, 0x6c, 0x11
        }
    },
    {
        { 0x7d, 0x15, 0x47, 0x90, 0x76, 0xb6, 0x9a, 0x46, 
          0xff, 0xb3, 0xb3, 0xbe, 0xae, 0x97, 0xad, 0x83, 
          0x13, 0xf6, 0x22, 0xf6, 0x7f, 0xed, 0xb4, 0x87, 
          0xde, 0x9f, 0x06, 0xb9, 0xed, 0x9c, 0x8f, 0x19
        },
        {
          0x51, 0x4f, 0x93, 0xfb, 0x29, 0x6b, 0x5a, 0xd1, 
          0x6a, 0xa7, 0xdf, 0x8b, 0x57, 0x7a, 0xbc, 0xbd, 
          0x48, 0x4d, 0xec, 0xac, 0xcc, 0xc7, 0xfb, 0x1f, 
          0x18, 0xdc, 0x56, 0x73, 0x09, 0xce, 0xef, 0xfd
        },
        { 0x5d, 0x71, 0x01, 0x72, 0x7b, 0xb2, 0x57, 0x81, 
          0xbf, 0x67, 0x15, 0xb0, 0xe6, 0x95, 0x52, 0x82, 
          0xb9, 0x61, 0x0e, 0x23, 0xa4, 0x3c, 0x2e, 0xb0, 
          0x62, 0x69, 0x9f, 0x0e, 0xbf, 0x58, 0x87, 0xb2
        },
        {
          0xd5, 0x6c, 0x5a, 0x63, 0x62, 0x74, 0x32, 0x57,
          0x9e, 0x1d, 0xd3, 0x08, 0xb2, 0xc8, 0xf1, 0x57,
          0xb4, 0x0a, 0x4b, 0xfb, 0x56, 0xfe, 0xa1, 0x37,
          0x7b, 0x25, 0xd3, 0xed, 0x3d, 0x6d, 0xbf, 0x80
        },
        { 0xa4, 0x94, 0x06, 0x11, 0x5d, 0xfb, 0x30, 0xa4, 
          0x04, 0x18, 0xaa, 0xfa, 0x48, 0x69, 0xb7, 0xc6, 
          0xa8, 0x86, 0xff, 0x31, 0x60, 0x2a, 0x7d, 0xd1, 
          0x9c, 0x88, 0x9d, 0xc6, 0x4f, 0x7e, 0x4e, 0x7a
        }
    }
};

int main(void)
{   byte        out[32], ret[32], err = 0;
    word        i, j;
    c_name(aes) alg;

    outf = fopen("dev_vec.txt", "w");

    fprintf(outf, "\nThese test have been generated by Dr Brian Gladman using the"); 
    fprintf(outf, "\nprogram aes_vec.cpp  <[e-mail]> 24th May 2001.\n");
    fprintf(outf, "\nLEGEND FOR CIPHER ENCRYPT - round r = 0 to R, R = 10..14"); 
    fprintf(outf, "\ninput:   cipher input"); 
    fprintf(outf, "\nstart:   state at start of round[r]"); 
    fprintf(outf, "\ns_box:   state after s_box substitution"); 
    fprintf(outf, "\ns_row:   state after shift row transformation"); 
    fprintf(outf, "\nm_col:   state after mix column transformation"); 
    fprintf(outf, "\nk_sch:   key schedule value for round[r]"); 
    fprintf(outf, "\noutput:  cipher output\n"); 
    fprintf(outf, "\nLEGEND FOR CIPHER DECRYPT - round r = 0 to R, R = 10..14"); 
    fprintf(outf, "\nKEY SCHEDULE FOR KEY XOR FOLLOWED BY INVERSE MIX COLUMN"); 
    fprintf(outf, "\niinput:  inverse cipher input"); 
    fprintf(outf, "\nistart:  state at start of round[r]"); 
    fprintf(outf, "\nis_box:  state after inverse s_box substitution"); 
    fprintf(outf, "\nis_row:  state after inverse shift row transformation"); 
    fprintf(outf, "\nik_sch:  key schedule value for round[r]"); 
    fprintf(outf, "\nik_add:  state after key addition"); 
    fprintf(outf, "\nioutput: cipher output\n"); 
    fprintf(outf, "\nLEGEND FOR CIPHER DECRYPT (MOD) - round r = 0 to R, R = 10..14"); 
    fprintf(outf, "\nKEY SCHEDULE FOR INVERSE MIX COLUMN FOLLOWED BY KEY XOR"); 
    fprintf(outf, "\niinput:  inverse cipher input"); 
    fprintf(outf, "\nistart:  state at start of round[r]"); 
    fprintf(outf, "\nis_box:  state after inverse s_box substitution"); 
    fprintf(outf, "\nis_row:  state after inverse shift row transformation"); 
    fprintf(outf, "\nim_col:  state after inverse mix column transformation"); 
    fprintf(outf, "\nik_sch:  key schedule value for round[r]"); 
    fprintf(outf, "\nioutput: cipher output\n"); 

    for(i = 0; i < 5; ++i)
    {
#if !defined(BLOCK_SIZE)
        f_set_blk(&alg, 16 + 4 * i);
#endif
        for(j = 0; j < 5; ++j)
        {
            f_set_key(&alg, exh, 16 + 4 * j, both);
            bytes_out("PLAINTEXT:    ",  pih, 16 + 4 * i);
            bytes_out("KEY:          ", exh, 16 + 4 * j);
            
            fprintf(outf, "\nENCRYPT       %2i byte block, %2i byte key", 16 + 4 * i, 16 + 4 * j);
            f_encrypt(&alg, pih, out);
            if(memcmp(out, res[i][j], 16 + 4 * i)) err++;

            fprintf(outf, "\nDECRYPT       %2i byte block, %2i byte key", 16 + 4 * i, 16 + 4 * j);
            mod = 0; f_decrypt(&alg, out, ret);
            if(memcmp(ret, pih, 16 + 4 * i)) err++;
            fprintf(outf, "\nDECRYPT (MOD) %2i byte block, %2i byte key", 16 + 4 * i, 16 + 4 * j);
            mod = 1;  f_decrypt(&alg, out, ret);
            if(memcmp(ret, pih, 16 + 4 * i)) err++;
            fprintf(outf, "\n");
        }
    }

    fclose(outf);
    printf("\nThese values are %s", (err ? "in error\n\n" : "correct\n\n"));

    return 0;
}