get buf unsign s[256]
get buf t[256]
we have key:whoami
we have flag:????????????????????????????????

for i:0 to 256
    set s[i]:i

for i:0 to 256
    set t[i]:key[(i)mod(key.lenth)]

for i:0 to 256
    set j:(j+s[i]+t[i])mod(256)
        swap:s[i],s[j]

for m:0 to 38
    set i:(i + 1)mod(256)
    set j:(j + S[i])mod(256)
    swap:s[i],s[j]
    set x:(s[i] + (s[j]mod(256))mod(256))
    set flag[m]:flag[m]^s[x]

fprint flagx to file

簭+"烸?K?镝?灸註? z?Q碉=??

def filehex(file):
    fhex=[]
    f = open(file,'rb')
    ff = f.read().hex()

    for i in range(0,len(str(ff)),2):
        fhex.append(int(str(ff)[i:i+2],16))
    return fhex

flagx2=filehex('file.txt')
print(flagx2)

#使用010edit 读取'file.txt'文件16进制
flagx=[0x00,0xBA,0x8F,0x11,0x2B,0x22,0x9F,0x51,0xA1,0x2F,0xAB,0xB7,0x4B,0xD7,0x3F,0xEF,0xE1,0xB5,0x13,0xBE,0xC4,0xD4,0x5D,0x03,0xD9,0x00,0x7A,0xCA,0x1D,0x51,0xA4,0x73,0xB5,0xEF,0x3D,0x9B,0x31,0xB3]

s=[]
t=[]
key='whoami'
j=0
for i in range(0,256):
    s.append(i)

for i in range(0,256):
    t.append(key[i % len(key)])

for i in range(0,256):
     j=(j+int(s[i])+int(ord(t[i])))%256
     s[i], s[j] = s[j], s[i]

i=0;j=0;x=0
for m in range(0,38):
    i=(i + 1)%(256)
    j=(j + s[i])%(256)
    s[i],s[j] = s[j],s[i]
    x=(s[i] + (s[j]%(256)))%(256)
    flagx[m] = flagx[m] ^ s[x]
    flagx2[m]=flagx2[m]^s[x]

print(''.join(chr(flagx[i]) for i in range(0,38)))
print(''.join(chr(flagx2[i]) for i in range(0,38)))