Changes

</syntaxhighlight>This will download the bitstream, run an encryption, and print the results. You could for example run 500 encryptions, storing the results to a textfile and MATLAB array with the following code:

<TODOsyntaxhighlight lang="python">from chipwhisperer.capture.targets.CW305 import CW305import random cw = CW305()cw.con(bsfile=r"C:\chipwhisperer\hardware\victims\cw305_artixtarget\fpga\vivado_examples\aes128_verilog\aes128_verilog.runs\impl_35t\cw305_top.bit", force=False) test_key = [0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c] plaintexts = []ciphertexts = [] for tnum in range(0, 20): pt = [random.randint(0, 255) for i in range(0, 16)] cw.loadEncryptionKey(test_key) cw.loadInput(pt) cw.go() ct = cw.readOutput()  plaintexts.append(pt) ciphertexts.append(ct)  print "result %d:"%tnum print " pt: " + " ".join(["%02x"%d for d in pt]) print " ct: " + " ".join(["%02x"%d for d in ct]) #Example - saving to textptfile = open("plaintexts.txt", "w")ctfile = open("ciphertexts.txt", "w")for i in range(0, len(plaintexts)): ptfile.write(" ".join(["%02x"%d for d in plaintexts[i]]) + "\n") ctfile.write(" ".join(["%02x"%d for d in ciphertexts[i]]) + "\n") ptfile.close()ctfile.close() #Example - saving to MATLAB workspaceimport scipy.ioscipy.io.savemat('pt_ct_mat', {'plaintexts':plaintexts, 'ciphertexts':ciphertexts, 'key':test_key})</syntaxhighlight>