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https://github.com/moparisthebest/mailiverse
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48 lines
1.1 KiB
Python
Executable File
48 lines
1.1 KiB
Python
Executable File
#!/usr/bin/python
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import botan
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def make_into_c_array(ber):
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output = 'static unsigned char key_data[%d] = {\n\t' % (len(ber))
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for (idx,c) in zip(range(len(ber)), ber):
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if idx != 0 and idx % 8 == 0:
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output += "\n\t"
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output += "0x%s, " % (c.encode('hex'))
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output += "\n};\n"
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return output
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rng = botan.RandomNumberGenerator()
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rsa_priv = botan.RSA_PrivateKey(768, rng)
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print rsa_priv.to_string()
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print int(rsa_priv.get_N())
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print int(rsa_priv.get_E())
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rsa_pub = botan.RSA_PublicKey(rsa_priv)
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print make_into_c_array(rsa_pub.to_ber())
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#print make_into_c_array(rsa_priv.to_ber())
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key = rng.gen_random(20)
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ciphertext = rsa_pub.encrypt(key, 'EME1(SHA-1)', rng)
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print ciphertext.encode('hex')
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plaintext = rsa_priv.decrypt(ciphertext, 'EME1(SHA-1)')
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print plaintext == key
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signature = rsa_priv.sign(key, 'EMSA4(SHA-256)', rng)
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print rsa_pub.verify(key, signature, 'EMSA4(SHA-256)')
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# Corrupt the signature, make sure it doesn't verify
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signature = signature.replace(signature[0], '0')
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print rsa_pub.verify(key, signature, 'EMSA4(SHA-256)')
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