add support for RSA_SHA256
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1e91c0f254
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@ -189,13 +189,19 @@ class PaymentRequest:
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prev_x = x509_chain[i-1]
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algo, sig, data = prev_x.extract_sig()
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if algo.getComponentByName('algorithm') != x509.ALGO_RSA_SHA1:
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self.error = "Algorithm not suported"
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return
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sig = bytearray(sig[5:])
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pubkey = x.publicKey
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verify = pubkey.hashAndVerify(sig, data)
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if algo.getComponentByName('algorithm') == x509.ALGO_RSA_SHA1:
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verify = pubkey.hashAndVerify(sig, data)
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elif algo.getComponentByName('algorithm') == x509.ALGO_RSA_SHA256:
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hashBytes = bytearray(hashlib.sha256(data).digest())
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prefixBytes = bytearray([0x30,0x31,0x30,0x0d,0x06,0x09,0x60,0x86,0x48,0x01,0x65,0x03,0x04,0x02,0x01,0x05,0x00,0x04,0x20])
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verify = pubkey.verify(sig, prefixBytes + hashBytes)
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else:
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self.error = "Algorithm not supported"
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util.print_error(self.error, algo.getComponentByName('algorithm'))
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return
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if not verify:
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self.error = "Certificate not Signed by Provided CA Certificate Chain"
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return
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@ -51,7 +51,7 @@ from pyasn1_modules.rfc2459 import id_ce_basicConstraints, BasicConstraints
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XMPP_ADDR = ObjectIdentifier('1.3.6.1.5.5.7.8.5')
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SRV_NAME = ObjectIdentifier('1.3.6.1.5.5.7.8.7')
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ALGO_RSA_SHA1 = ObjectIdentifier('1.2.840.113549.1.1.5')
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ALGO_RSA_SHA256 = ObjectIdentifier('1.2.840.113549.1.1.11')
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class CertificateError(Exception):
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pass
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