easyctf/easyctf-2017
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neptunia 2017-03-17 19:32:40 -04:00
parent b8bccad630
commit 5ae11d3225
1 changed files with 4 additions and 3 deletions
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7
premium-rsa/grader.py
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@ -76,10 +76,11 @@ def get_problem(random):
def generate_ciphertext(random): def generate_ciphertext(random):
n, e, cut, deez, salt = get_problem(random) n, e, cut, deez, salt = get_problem(random)
encoded = int(("easyctf{%s%s}" % (flag, salt)).encode('hex'),16) encoded = int(("easyctf{%s%s}" % (flag, salt)).encode('hex'),16)
ciphertext = 'n: '+str(n)+'\n' ciphertext = 'n: '+hex(n))+'\n'
ciphertext += 'e: '+str(e)+'\n' ciphertext += 'e: '+hex(e)+'\n'
ciphertext += 'd: [??? '+str(cut)+' REDACTED BITS ???]'+str(deez)+'\n' ciphertext += 'd: [??? '+str(cut)+' REDACTED BITS ???]'+str(deez)+'\n'
ciphertext += 'c: '+str(pow(encoded, e, n))+'\n' ciphertext += 'c: '+hex(pow(encoded, e, n))+'\n'
return StringIO(ciphertext) return StringIO(ciphertext)