def createMK(denomination, cdd, not_before, mint_not_after, coin_not_after):
import crypto
key = crypto.createRSAKeyPair(1024)
if denomination not in cdd.denominations:
raise MessageError('denomination not in denominations')
if mint_not_after <= not_before or mint_not_after > coin_not_after:
raise MessageError('those variables do not make sense')
hashing = cdd.issuer_cipher_suite.hashing()
hashing.update(key.__str__())
minting_key = containers.MintKey(hashing.digest(), cdd.currency_identifier, denomination, not_before,
mint_not_after, coin_not_after, key)
signing = cdd.issuer_cipher_suite.signing
hashing = cdd.issuer_cipher_suite.hashing
minting_key.setSignature(cdd.issuer_public_master_key, signing, hashing)
if not minting_key.verify_with_CDD(cdd):
raise MessageError('Just made a bad minting key')
return minting_key
def createMK(denomination, cdd, not_before, mint_not_after, coin_not_after):
import crypto
key = crypto.createRSAKeyPair(1024)
if denomination not in cdd.denominations:
raise MessageError('denomination not in denominations')
if mint_not_after <= not_before or mint_not_after > coin_not_after:
raise MessageError('those variables do not make sense')
hashing = cdd.issuer_cipher_suite.hashing()
hashing.update(key.__str__())
minting_key = containers.MintKey(hashing.digest(), cdd.currency_identifier,
denomination, not_before, mint_not_after,
coin_not_after, key)
signing = cdd.issuer_cipher_suite.signing
hashing = cdd.issuer_cipher_suite.hashing
minting_key.setSignature(cdd.issuer_public_master_key, signing, hashing)
if not minting_key.verify_with_CDD(cdd):
raise MessageError('Just made a bad minting key')
return minting_key
def createCDD():
import crypto
key = crypto.createRSAKeyPair(1024)
denominations = ['1', '5', '25', '100', '500', '2500', '10000']
hashing = crypto.SHA256HashingAlgorithm
signing = crypto.RSASigningAlgorithm
blinding = crypto.RSABlindingAlgorithm
cipher_suite = crypto.CryptoContainer(signing=signing, blinding=blinding, hashing=hashing)
cdd = containers.CurrencyDescriptionDocument(
'OpenCoin standard', 'OpenCent', 'OC', 'IssuerLocation', denominations, cipher_suite, key)
cdd.sign_self(signing, hashing)
return cdd
def createDSDBCertificate(cdd, not_before, not_after):
import crypto
key = crypto.createRSAKeyPair(1024)
if not_before > not_after:
raise MessageError('that does not make sense')
hashing = cdd.issuer_cipher_suite.hashing(str(key))
encrypting = crypto.RSAEncryptionAlgorithm
cert = containers.DSDBKey(hashing.digest(), not_before, not_after, encrypting, key)
signing = cdd.issuer_cipher_suite.signing
hashing = cdd.issuer_cipher_suite.hashing
cert.addAdSignature(cdd.issuer_public_master_key, signing, hashing)
if not cert.verify_with_CDD(cdd):
raise MessageErrror('Just made a bad DSDB cert')
return cert
def createDSDBCertificate(cdd, not_before, not_after):
import crypto
key = crypto.createRSAKeyPair(1024)
if not_before > not_after:
raise MessageError('that does not make sense')
hashing = cdd.issuer_cipher_suite.hashing(str(key))
encrypting = crypto.RSAEncryptionAlgorithm
cert = containers.DSDBKey(hashing.digest(), not_before, not_after,
encrypting, key)
signing = cdd.issuer_cipher_suite.signing
hashing = cdd.issuer_cipher_suite.hashing
cert.addAdSignature(cdd.issuer_public_master_key, signing, hashing)
if not cert.verify_with_CDD(cdd):
raise MessageErrror('Just made a bad DSDB cert')
return cert
def createCDD():
import crypto
key = crypto.createRSAKeyPair(1024)
denominations = ['1', '5', '25', '100', '500', '2500', '10000']
hashing = crypto.SHA256HashingAlgorithm
signing = crypto.RSASigningAlgorithm
blinding = crypto.RSABlindingAlgorithm
cipher_suite = crypto.CryptoContainer(signing=signing,
blinding=blinding,
hashing=hashing)
cdd = containers.CurrencyDescriptionDocument('OpenCoin standard',
'OpenCent', 'OC',
'IssuerLocation',
denominations, cipher_suite,
key)
cdd.sign_self(signing, hashing)
return cdd