Updated DB_Helper by adding firebase methods.
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venv/Lib/site-packages/pyasn1_modules/rfc8018.py
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venv/Lib/site-packages/pyasn1_modules/rfc8018.py
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#
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# This file is part of pyasn1-modules software.
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#
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# Created by Russ Housley.
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#
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# Copyright (c) 2019, Vigil Security, LLC
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# License: http://snmplabs.com/pyasn1/license.html
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#
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# PKCS #5: Password-Based Cryptography Specification, Version 2.1
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#
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# ASN.1 source from:
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# https://www.rfc-editor.org/rfc/rfc8018.txt
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#
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from pyasn1.type import constraint
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from pyasn1.type import namedtype
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from pyasn1.type import namedval
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from pyasn1.type import univ
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from pyasn1_modules import rfc3565
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from pyasn1_modules import rfc5280
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MAX = float('inf')
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def _OID(*components):
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output = []
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for x in tuple(components):
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if isinstance(x, univ.ObjectIdentifier):
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output.extend(list(x))
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else:
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output.append(int(x))
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return univ.ObjectIdentifier(output)
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# Import from RFC 3565
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AES_IV = rfc3565.AES_IV
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# Import from RFC 5280
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AlgorithmIdentifier = rfc5280.AlgorithmIdentifier
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# Basic object identifiers
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nistAlgorithms = _OID(2, 16, 840, 1, 101, 3, 4)
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aes = _OID(nistAlgorithms, 1)
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oiw = _OID(1, 3, 14)
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rsadsi = _OID(1, 2, 840, 113549)
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pkcs = _OID(rsadsi, 1)
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digestAlgorithm = _OID(rsadsi, 2)
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encryptionAlgorithm = _OID(rsadsi, 3)
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pkcs_5 = _OID(pkcs, 5)
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# HMAC object identifiers
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id_hmacWithSHA1 = _OID(digestAlgorithm, 7)
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id_hmacWithSHA224 = _OID(digestAlgorithm, 8)
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id_hmacWithSHA256 = _OID(digestAlgorithm, 9)
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id_hmacWithSHA384 = _OID(digestAlgorithm, 10)
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id_hmacWithSHA512 = _OID(digestAlgorithm, 11)
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id_hmacWithSHA512_224 = _OID(digestAlgorithm, 12)
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id_hmacWithSHA512_256 = _OID(digestAlgorithm, 13)
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# PBES1 object identifiers
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pbeWithMD2AndDES_CBC = _OID(pkcs_5, 1)
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pbeWithMD2AndRC2_CBC = _OID(pkcs_5, 4)
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pbeWithMD5AndDES_CBC = _OID(pkcs_5, 3)
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pbeWithMD5AndRC2_CBC = _OID(pkcs_5, 6)
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pbeWithSHA1AndDES_CBC = _OID(pkcs_5, 10)
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pbeWithSHA1AndRC2_CBC = _OID(pkcs_5, 11)
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# Supporting techniques object identifiers
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desCBC = _OID(oiw, 3, 2, 7)
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des_EDE3_CBC = _OID(encryptionAlgorithm, 7)
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rc2CBC = _OID(encryptionAlgorithm, 2)
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rc5_CBC_PAD = _OID(encryptionAlgorithm, 9)
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aes128_CBC_PAD = _OID(aes, 2)
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aes192_CBC_PAD = _OID(aes, 22)
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aes256_CBC_PAD = _OID(aes, 42)
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# PBES1
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class PBEParameter(univ.Sequence):
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pass
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PBEParameter.componentType = namedtype.NamedTypes(
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namedtype.NamedType('salt', univ.OctetString().subtype(
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subtypeSpec=constraint.ValueSizeConstraint(8, 8))),
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namedtype.NamedType('iterationCount', univ.Integer())
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)
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# PBES2
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id_PBES2 = _OID(pkcs_5, 13)
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class PBES2_params(univ.Sequence):
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pass
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PBES2_params.componentType = namedtype.NamedTypes(
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namedtype.NamedType('keyDerivationFunc', AlgorithmIdentifier()),
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namedtype.NamedType('encryptionScheme', AlgorithmIdentifier())
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)
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# PBMAC1
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id_PBMAC1 = _OID(pkcs_5, 14)
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class PBMAC1_params(univ.Sequence):
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pass
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PBMAC1_params.componentType = namedtype.NamedTypes(
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namedtype.NamedType('keyDerivationFunc', AlgorithmIdentifier()),
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namedtype.NamedType('messageAuthScheme', AlgorithmIdentifier())
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)
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# PBKDF2
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id_PBKDF2 = _OID(pkcs_5, 12)
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algid_hmacWithSHA1 = AlgorithmIdentifier()
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algid_hmacWithSHA1['algorithm'] = id_hmacWithSHA1
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algid_hmacWithSHA1['parameters'] = univ.Null("")
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class PBKDF2_params(univ.Sequence):
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pass
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PBKDF2_params.componentType = namedtype.NamedTypes(
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namedtype.NamedType('salt', univ.Choice(componentType=namedtype.NamedTypes(
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namedtype.NamedType('specified', univ.OctetString()),
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namedtype.NamedType('otherSource', AlgorithmIdentifier())
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))),
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namedtype.NamedType('iterationCount', univ.Integer().subtype(
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subtypeSpec=constraint.ValueRangeConstraint(1, MAX))),
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namedtype.OptionalNamedType('keyLength', univ.Integer().subtype(
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subtypeSpec=constraint.ValueRangeConstraint(1, MAX))),
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namedtype.DefaultedNamedType('prf', algid_hmacWithSHA1)
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)
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# RC2 CBC algorithm parameter
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class RC2_CBC_Parameter(univ.Sequence):
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pass
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RC2_CBC_Parameter.componentType = namedtype.NamedTypes(
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namedtype.OptionalNamedType('rc2ParameterVersion', univ.Integer()),
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namedtype.NamedType('iv', univ.OctetString().subtype(
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subtypeSpec=constraint.ValueSizeConstraint(8, 8)))
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)
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# RC5 CBC algorithm parameter
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class RC5_CBC_Parameters(univ.Sequence):
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pass
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RC5_CBC_Parameters.componentType = namedtype.NamedTypes(
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namedtype.NamedType('version',
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univ.Integer(namedValues=namedval.NamedValues(('v1_0', 16))).subtype(
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subtypeSpec=constraint.SingleValueConstraint(16))),
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namedtype.NamedType('rounds',
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univ.Integer().subtype(subtypeSpec=constraint.ValueRangeConstraint(8, 127))),
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namedtype.NamedType('blockSizeInBits',
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univ.Integer().subtype(subtypeSpec=constraint.SingleValueConstraint(64, 128))),
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namedtype.OptionalNamedType('iv', univ.OctetString())
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)
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# Initialization Vector for AES: OCTET STRING (SIZE(16))
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class AES_IV(univ.OctetString):
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pass
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AES_IV.subtypeSpec = constraint.ValueSizeConstraint(16, 16)
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# Initialization Vector for DES: OCTET STRING (SIZE(8))
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class DES_IV(univ.OctetString):
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pass
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DES_IV.subtypeSpec = constraint.ValueSizeConstraint(8, 8)
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# Update the Algorithm Identifier map
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_algorithmIdentifierMapUpdate = {
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# PBKDF2-PRFs
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id_hmacWithSHA1: univ.Null(),
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id_hmacWithSHA224: univ.Null(),
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id_hmacWithSHA256: univ.Null(),
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id_hmacWithSHA384: univ.Null(),
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id_hmacWithSHA512: univ.Null(),
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id_hmacWithSHA512_224: univ.Null(),
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id_hmacWithSHA512_256: univ.Null(),
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# PBES1Algorithms
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pbeWithMD2AndDES_CBC: PBEParameter(),
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pbeWithMD2AndRC2_CBC: PBEParameter(),
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pbeWithMD5AndDES_CBC: PBEParameter(),
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pbeWithMD5AndRC2_CBC: PBEParameter(),
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pbeWithSHA1AndDES_CBC: PBEParameter(),
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pbeWithSHA1AndRC2_CBC: PBEParameter(),
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# PBES2Algorithms
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id_PBES2: PBES2_params(),
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# PBES2-KDFs
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id_PBKDF2: PBKDF2_params(),
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# PBMAC1Algorithms
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id_PBMAC1: PBMAC1_params(),
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# SupportingAlgorithms
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desCBC: DES_IV(),
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des_EDE3_CBC: DES_IV(),
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rc2CBC: RC2_CBC_Parameter(),
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rc5_CBC_PAD: RC5_CBC_Parameters(),
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aes128_CBC_PAD: AES_IV(),
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aes192_CBC_PAD: AES_IV(),
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aes256_CBC_PAD: AES_IV(),
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}
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rfc5280.algorithmIdentifierMap.update(_algorithmIdentifierMapUpdate)
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