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59 lines
1.7 KiB
59 lines
1.7 KiB
# create a BIP70 payment request signed with a certificate |
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import tlslite |
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import time |
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import hashlib |
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from electrum import paymentrequest_pb2 as pb2 |
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from electrum.transaction import Transaction |
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from electrum import bitcoin |
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from electrum import x509 |
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chain_file = 'mychain.pem' |
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cert_file = 'mycert.pem' |
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amount = 1000000 |
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address = "18U5kpCAU4s8weFF8Ps5n8HAfpdUjDVF64" |
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memo = "blah" |
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out_file = "payreq" |
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with open(chain_file, 'r') as f: |
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chain = tlslite.X509CertChain() |
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chain.parsePemList(f.read()) |
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certificates = pb2.X509Certificates() |
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certificates.certificate.extend(map(lambda x: str(x.bytes), chain.x509List)) |
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with open(cert_file, 'r') as f: |
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rsakey = tlslite.utils.python_rsakey.Python_RSAKey.parsePEM(f.read()) |
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def make_payment_request(amount, script, memo): |
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"""Generates a http PaymentRequest object""" |
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pd = pb2.PaymentDetails() |
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pd.outputs.add(amount=amount, script=script) |
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now = int(time.time()) |
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pd.time = now |
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pd.expires = now + 15*60 |
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pd.memo = memo |
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pd.payment_url = 'http://payment_ack.url' |
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pr = pb2.PaymentRequest() |
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pr.serialized_payment_details = pd.SerializeToString() |
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pr.pki_type = 'x509+sha256' |
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pr.pki_data = certificates.SerializeToString() |
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pr.signature = '' |
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msgBytes = bytearray(pr.SerializeToString()) |
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hashBytes = bytearray(hashlib.sha256(msgBytes).digest()) |
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sig = rsakey.sign(x509.PREFIX_RSA_SHA256 + hashBytes) |
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pr.signature = bytes(sig) |
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return pr.SerializeToString() |
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script = Transaction.pay_script('address', address).decode('hex') |
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pr_string = make_payment_request(amount, script, memo) |
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with open(out_file,'wb') as f: |
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f.write(pr_string) |
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print "Payment request was written to file '%s'"%out_file
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