Note: Descriptions are shown in the official language in which they were submitted.
CA 03175939 2022-09-19
BLACKLIST DATA SHARING METHOD AND SYSTEM BASED ON BLOCKCHAIN
BACKGROUND OF THE INVENTION
Technical Field
[0001] The present invention relates to the field of blockchain technology,
and more particularly
to blacklist data sharing method and system based on a blockchain.
Description of Related Art
[0002] The blacklist is a list that records actors or legal representatives
with severely negative
credits, once an actor is listed in the blacklist, this indicates that the
actor is problematic
in terms of credit, and cooperation with any actor or legal representative
appearing in the
blacklist necessitates an increased risk; currently available blacklist data
originates from
many approaches, such as financial organizations, credit card issuing
organizations,
courts, and telecommunication enterprises, etc.; since the origins of
blacklist data include
governmental functional organizations and large- and medium-sized enterprises,
and due
to characteristics of the dispersed origins, it is very hard in the
operational process to
effectively integrate and share the blacklist data originating from the above
units, so there
comes into a lot of private institutions that are dedicated to collecting
blacklist data from
various units and thereafter selling the data for profit, so that enterprises
acquire the
required blacklist data through paid purchase; nevertheless, due to
characteristics that the
blacklist data is dispersedly publicized and not transparently publicized, the
blacklist data
obtained by different private institutions differs from one another both in
terms of
quantity and quality, accordingly, even if enterprises would like to buy the
blacklist data
with a high price, it is still impossible to ensure completeness and
effectiveness of the
blacklist data.
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SUMMARY OF THE INVENTION
[0003] An objective of the present invention is to provide blacklist data
sharing method and
system based on a blockchain, by introducing the blockchain technology into
the
application scenario of blacklist data, it is made possible to ensure
conveniency and
effectiveness in obtaining blacklist data, and enhance sharing value of the
blacklist data.
[0004] In order to achieve the above objective, according to the first aspect,
the present invention
provides a blacklist data sharing method based on a blockchain, and the method
comprises:
[0005] constructing respective network nodes by member organizations, and
sequentially
networking the network nodes belonging to the various member organizations to
construct a blockchain, wherein the network nodes include business nodes and
accumulated point nodes;
[0006] initiating a blacklist data uploading request via any one business
node, using a random
public key to encrypt a generated symmetric key while employing the generated
symmetric key to encrypt blacklist data, and requesting by an associated
accumulated
point node to transfer accumulated points to a designated accumulated point
address
during up-chaining and down-accounting by packaging and up-chaining the
encrypted
blacklist data and the encrypted symmetric key; or
[0007] initiating a blacklist data enquiring request via any one business
node, in the case target
blacklist data is not uploaded by an enquiring organization, paying
accumulated points to
an accumulated point address of an organization holding the target blacklist
data through
an associated accumulated point node, using a private key that matches the
random public
key to decrypt the packaged target blacklist data after the holding
organization has
monitored entry into the account of the accumulated points, and simultaneously
invoking
a public key of the enquiring organization to reversely encrypt the decrypted
target
blacklist data for return to the enquiring organization for decryption and
enquiry; or
[0008] initiating a blacklist data deleting request via a business node of the
blacklist data holding
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organization itself, and deleting the target blacklist data after signature
verification has
been passed and deducting accumulated points in the associated accumulated
point
address.
[0009] Specifically, the blockchain includes a business alliance chain and an
accumulated point
alliance chain, of which the business alliance chain consists of plural
business nodes
networked together, and the accumulated point alliance chain consists of
plural
accumulated point nodes networked together.
[0010] Preferably, the step of initiating a blacklist data uploading request
via any one business
node, using a random public key to encrypt a generated symmetric key while
employing
the generated symmetric key to encrypt blacklist data, and requesting by an
associated
accumulated point node to transfer accumulated points to a designated
accumulated point
address during up-chaining and down-accounting by packaging and up-chaining
the
encrypted blacklist data and the encrypted symmetric key includes:
[0011] initiating a blacklist data uploading request to the business alliance
chain by a member
organization through a business node belonging thereto, and simultaneously
designating
an accumulated point address for receiving accumulated points;
[0012] calculating a key value of blacklist data to be uploaded, and judging
through the key value
whether the blacklist data to be uploaded has been stored in the business
alliance chain;
[0013] in the case a judging result is negative, employing a randomly
generated symmetric key
to encrypt the blacklist data and using a random public key to encrypt the
symmetric key
and executing packaging and up-chaining operations, in the case the judging
result is
positive, terminating the current operation of uploading the blacklist data;
and
[0014] requesting the accumulated point alliance chain by the associated
accumulated point node
to transfer accumulated points to the designated accumulated point address,
when it is
monitored that the up-chaining operation and down-accounting of the blacklist
data are
triggered.
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[0015] Preferably, the step of employing a randomly generated symmetric key to
encrypt the
blacklist data and using a random public key to encrypt the symmetric key and
executing
packaging and up-chaining operations includes:
[0016] associatively marking the blacklist data, the accumulated point
address, and the random
public key, wherein the blacklist data includes names, IDs, and detailed data;
[0017] using the randomly generated symmetric key to encrypt the detailed
data, and storing the
names, the IDs, and the encrypted detailed data in the same file folder; and
[0018] using the random public key to encrypt the symmetric key for a second
time, and
thereafter packaging the symmetric key encrypted for the second time and the
file folder
and uploading the same to the business alliance chain.
[0019] Preferably, the step of initiating a blacklist data enquiring request
via any one business
node, in the case target blacklist data is not uploaded by an enquiring
organization,
transferring accumulated points to an accumulated point address of an
organization
holding the target blacklist data through an associated accumulated point
node, using a
private key that matches the random public key to decrypt the packaged target
blacklist
data after the holding organization has monitored entry into the account of
the
accumulated points, and simultaneously invoking a public key of the enquiring
organization to reversely encrypt the decrypted target blacklist data for
return to the
enquiring organization for decryption and enquiry includes:
[0020] initiating a blacklist data enquiring request to the business alliance
chain by a member
organization through a business node belong thereto, and judging whether
uploading is
performed by the enquiring organization according to the accumulated point
address
associated with the blacklist data to be enquired;
[0021] in the case a judging result is positive, invoking a private key
associated with the
accumulated point address to decrypt the encrypted symmetric key and extract a
plaintext
symmetric key, and thereafter employing the plaintext symmetric key to decrypt
detailed
data in the file folder; and
[0022] in the case the judging result is negative, requesting the accumulated
point alliance chain
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through the associated accumulated point node to pay accumulated points to the
accumulated point address of the target blacklist data holding organization,
using a
private key that matches the associated accumulated point address to decrypt
the
encrypted symmetric key after the holding organization has monitored entry
into the
account of the accumulated points, invoking a public key of the enquiring
organization
to reversely encrypt the plaintext symmetric key after extracting the
plaintext symmetric
key, and thereafter packaging the reversely encrypted symmetric key and the
undecrypted
detailed data and returning the same to the enquiring organization for
decryption and
obtainment.
[0023] Preferably, the accumulated point node includes plural accumulated
point addresses, and
the enquiring organization can select any one accumulated point address with
ample
accumulated points to pay accumulated points to the accumulated point address
of the
target blacklist data holding organization.
[0024] Optionally, a process of enquiring blacklist data further includes:
[0025] initiating a basic information enquiring request of the blacklist data
via any one business
node, inputting a name and an ID of the target blacklist data as key values in
the business
alliance chain, and returning basic information of the target blacklist data
by invoking a
smart contract.
[0026] Preferably, the step of initiating a blacklist data deleting request
via a business node of
the blacklist data holding organization itself, and deleting the target
blacklist data after
signature verification has been passed and deducting accumulated points in the
associated
accumulated point address includes:
[0027] initiating a blacklist data deleting request via a business node of the
blacklist data holding
organization itself, and judging through the business alliance chain whether
the
accumulated point address associated therewith has ample accumulated points;
[0028] in the case a judging result is positive, using a private key that
matches the random public
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key to sign the target blacklist data, sending signature information together
with the
blacklist data deleting request to the business alliance chain, and deleting
the target
blacklist data after verification has been passed by the business alliance
chain and
deducting accumulated points in the associated accumulated point address,
otherwise
terminating the current operation of deleting the blacklist data; and
[0029] in the case the judging result is negative, directly terminating the
current operation of
deleting the blacklist data.
[0030] In comparison with prior-art technology, the blacklist data sharing
method based on a
blockchain provided by the present invention achieves the following
advantageous effects.
[0031] In the blacklist data sharing method based on a blockchain provided by
the present
invention, a blockchain is constructed by sequentially accessing network nodes
to which
various member organizations correspond to a network, and each network node
includes
mutually associated business nodes and accumulated point nodes, of which the
business
node is used for initiating a business request and storing blacklist data, and
the
accumulated point node is used for executing corresponding accumulated point
transaction and recording accumulated point information when down-accounting
of the
business request is triggered; exemplarily, any member organization can
initiate a
blacklist data uploading request via a corresponding business node, uses a
random public
key to encrypt a generated symmetric key while employing the generated
symmetric key
to encrypt blacklist data, and requests by an associated accumulated point
node to transfer
accumulated points to a designated accumulated point address during up-
chaining and
down-accounting by packaging and up-chaining the encrypted blacklist data and
the
encrypted symmetric key; alternatively, any member organization can initiate a
blacklist
data enquiring request via a corresponding business node, in the case target
blacklist data
is not uploaded by an enquiring organization, pays accumulated points to an
accumulated
point address of an organization holding the target blacklist data through an
associated
accumulated point node, uses a private key that matches the random public key
to decrypt
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the packaged target blacklist data after the holding organization has
monitored entry into
the account of the accumulated points, and simultaneously invokes a public key
of the
enquiring organization to reversely encrypt the decrypted target blacklist
data for return
to the enquiring organization for decryption and enquiry; alternatively, any
member
organization can initiate a blacklist data deleting request via a
corresponding business
node, and deletes the target blacklist data after signature verification has
been passed and
deducts accumulated points in the associated accumulated point address.
[0032] Seen as such, when any member organization broadcasts the business
request via its
respective business node to the business alliance chain, the corresponding
business
request operation can be executed in the business alliance chain according to
consensus
results, if the business request executed is any one selected from a blacklist
data uploading
request, a blacklist data enquiring request, and a blacklist data deleting
request, the
relevant party that executes the current operation is bestowed with certain
accumulated
point award or deduction through the accumulated point alliance chain, thus
creating a
"paid" pattern of using shared blacklist data in exchange for accumulated
points, so that
the various member organizations are urged to timely and proactively share
blacklist data
in the business alliance chain on the basis of the above accumulated point
incentive policy,
and sharing scale and sharing value of the blacklist data are enhanced; in
addition, due to
the decentralized characteristic of the blockchain, use of the blacklist data
sharing method
based on a blockchain provided by the present invention requires no
centralized operating
organization, and possesses the characteristic of low operational cost, by
encrypted
storage of essential data, it is further possible to effectively protect
privacy of customers,
and achieve characteristics of safety and reliability.
[0033] According to another aspect, the present invention provides a blacklist
data sharing
system based on a blockchain, the system is applied to the blacklist data
sharing method
based on a blockchain as recited in the foregoing technical solution, and
comprises:
[0034] a blockchain constructing unit, for constructing respective network
nodes by member
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organizations, and sequentially networking the network nodes belonging to the
various
member organizations to construct a blockchain, wherein the network nodes
include
business nodes and accumulated point nodes;
[0035] a blacklist data uploading unit, for initiating a blacklist data
uploading request via any
one business node, using a random public key to encrypt a generated symmetric
key while
employing the generated symmetric key to encrypt blacklist data, and
requesting by an
associated accumulated point node to transfer accumulated points to a
designated
accumulated point address during up-chaining and down-accounting by packaging
and
up-chaining the encrypted blacklist data and the encrypted symmetric key;
[0036] a blacklist data enquiring unit, for initiating a blacklist data
enquiring request via any one
business node, in the case target blacklist data is not uploaded by an
enquiring
organization, paying accumulated points to an accumulated point address of an
organization holding the target blacklist data through an associated
accumulated point
node, using a private key that matches the random public key to decrypt the
packaged
target blacklist data after the holding organization has monitored entry into
the account
of the accumulated points, and simultaneously invoking a public key of the
enquiring
organization to reversely encrypt the decrypted target blacklist data for
return to the
enquiring organization for decryption and enquiry; and
[0037] a blacklist data deleting unit, for initiating a blacklist data
deleting request via a business
node of the blacklist data holding organization itself, and deleting the
target blacklist data
after signature verification has been passed and deducting accumulated points
in the
associated accumulated point address.
[0038] Preferably, the blacklist data uploading unit includes:
[0039] an upload requesting module, for initiating a blacklist data uploading
request to the
business alliance chain by a member organization through a business node
belonging
thereto, and simultaneously designating an accumulated point address for
receiving
accumulated points;
[0040] a duplicate-checking module, for calculating a key value of blacklist
data to be uploaded,
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and judging through the key value whether the blacklist data to be uploaded
has been
stored in the business alliance chain;
[0041] a first executing module, for, in the case a judging result is
negative, employing a
randomly generated symmetric key to encrypt the blacklist data and using a
random
public key to encrypt the symmetric key and executing packaging and up-
chaining
operations, in the case the judging result is positive, terminating the
current operation of
uploading the blacklist data; and
[0042] an accumulated point transacting module, for requesting the accumulated
point alliance
chain by the associated accumulated point node to transfer accumulated points
to the
designated accumulated point address, when it is monitored that the up-
chaining
operation and down-accounting of the blacklist data are triggered.
[0043] Preferably, the blacklist data enquiring unit includes:
[0044] an enquiry requesting module, for initiating a blacklist data enquiring
request to the
business alliance chain by a member organization through a business node
belong thereto,
and judging whether uploading is performed by the enquiring organization
according to
the accumulated point address associated with the blacklist data to be
enquired; and
[0045] a second executing module, for, in the case a judging result is
positive, invoking a private
key associated with the accumulated point address to decrypt the encrypted
symmetric
key and extract a plaintext symmetric key, and thereafter employing the
plaintext
symmetric key to decrypt detailed data in the file folder; in the case the
judging result is
negative, requesting the accumulated point alliance chain through the
associated
accumulated point node to pay accumulated points to the accumulated point
address of
the target blacklist data holding organization, using a private key that
matches the
associated accumulated point address to decrypt the encrypted symmetric key
after the
holding organization has monitored entry into the account of the accumulated
points,
invoking a public key of the enquiring organization to reversely encrypt the
plaintext
symmetric key after extracting the plaintext symmetric key, and thereafter
packaging the
reversely encrypted symmetric key and the undecrypted detailed data and
returning the
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same to the enquiring organization for decryption and obtainment.
[0046] Preferably, the blacklist data deleting unit includes:
[0047] a deletion requesting module, for initiating a blacklist data deleting
request via a business
node of the blacklist data holding organization itself, and judging through
the business
alliance chain whether the accumulated point address associated therewith has
ample
accumulated points; and
[0048] a third executing module, for, in the case a judging result is
positive, using a private key
that matches the random public key to sign the target blacklist data, sending
signature
information together with the blacklist data deleting request to the business
alliance chain,
and deleting the target blacklist data after verification has been passed by
the business
alliance chain and deducting accumulated points in the associated accumulated
point
address, otherwise terminating the current operation of deleting the blacklist
data; and in
the case the judging result is negative, directly terminating the current
operation of
deleting the blacklist data.
[0049] In comparison with prior-art technology, the advantageous effects
achieved by the
blacklist data sharing system based on a blockchain provided by the present
invention are
identical with the advantageous effects achievable by the blacklist data
sharing method
based on a blockchain provided by the foregoing technical solution, so these
are not
redundantly described in this context.
BRIEF DESCRIPTION OF THE DRAWINGS
[0050] The drawings described here are meant to provide further understanding
of the present
invention, and constitute part of the present invention. The exemplary
embodiments of
the present invention and the descriptions thereof are meant to explain the
present
invention, rather than to constitute any improper restriction to the present
invention. In
the drawings:
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[0051] Fig. 1 is a flowchart schematically illustrating the blacklist data
sharing method based on
a blockchain in Embodiment 1 of the present invention;
[0052] Fig. 2 is a view schematically illustrating the framework of a business
alliance chain and
an accumulated point alliance chain;
[0053] Fig. 3 is a flowchart schematically illustrating uploading blacklist
data via any one
business node to obtain accumulated points in Fig. 1;
[0054] Fig. 4 is a flowchart schematically illustrating enquiring blacklist
data via any one
business node to pay accumulated points in Fig. 1;
[0055] Fig. 5 is a flowchart schematically illustrating deleting blacklist
data via any one business
node to deduct accumulated points in Fig. 1; and
[0056] Fig. 6 is a block diagram illustrating the structure of the blacklist
data sharing system
based on a blockchain in Embodiment 2 of the present invention.
[0057] Reference Numerals:
[0058] 1 ¨ blockchain constructing unit 2¨ blacklist data uploading unit
[0059] 3 ¨ blacklist data enquiring unit 4¨ blacklist data deleting unit
[0060] 21 ¨ upload requesting module 22¨ duplicate-checking module
[0061] 23 ¨ first executing module 24 ¨ accumulated point transacting
module
[0062] 31 ¨ enquiry requesting module 32¨ second executing module
[0063] 41 ¨ deletion requesting module 42 ¨ third executing module
DETAILED DESCRIPTION OF THE INVENTION
[0064] To make more lucid and clear the objectives, features and advantages of
the present
invention, the technical solutions in the embodiments of the present invention
are clearly
and comprehensively described below with reference to the accompanying
drawings in
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the embodiments of the present invention. Apparently, the embodiments as
described are
merely partial, rather than the entire, embodiments of the present invention.
All other
embodiments obtainable by persons ordinarily skilled in the art on the basis
of the
embodiments in the present invention without spending creative effort shall
all fall within
the protection scope of the present invention.
[0065] Embodiment 1
[0066] Please refer to Fig. 1, this embodiment provides a blacklist data
sharing method based on
a blockchain, and the method comprises:
[0067] constructing respective network nodes by member organizations, and
sequentially
networking the network nodes belonging to the various member organizations to
construct a blockchain, wherein the network nodes include business nodes and
accumulated point nodes; initiating a blacklist data uploading request via any
one
business node, using a random public key to encrypt a generated symmetric key
while
employing the generated symmetric key to encrypt blacklist data, and
requesting by an
associated accumulated point node to transfer accumulated points to a
designated
accumulated point address during up-chaining and down-accounting by packaging
and
up-chaining the encrypted blacklist data and the encrypted symmetric key; or
initiating a
blacklist data enquiring request via any one business node, in the case target
blacklist data
is not uploaded by an enquiring organization, paying accumulated points to an
accumulated point address of an organization holding the target blacklist data
through an
associated accumulated point node, using a private key that matches the random
public
key to decrypt the packaged target blacklist data after the holding
organization has
monitored entry into the account of the accumulated points, and simultaneously
invoking
a public key of the enquiring organization to reversely encrypt the decrypted
target
blacklist data for return to the enquiring organization for decryption and
enquiry; or
initiating a blacklist data deleting request via a business node of the
blacklist data holding
organization itself, and deleting the target blacklist data after signature
verification has
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been passed and deducting accumulated points in the associated accumulated
point
address.
[0068] During specific implementation, in the blacklist data sharing method
based on a
blockchain provided by the present invention, a blockchain is constructed by
sequentially
accessing network nodes to which various member organizations correspond to a
network,
and each network node includes mutually associated business nodes and
accumulated
point nodes, of which the business node is used for initiating a business
request and
storing blacklist data, and the accumulated point node is used for executing
corresponding
accumulated point transaction and recording accumulated point information when
down-
accounting of the business request is triggered; exemplarily, any member
organization
can initiate a blacklist data uploading request via a corresponding business
node, uses a
random public key to encrypt a generated symmetric key while employing the
generated
symmetric key to encrypt blacklist data, and requests by an associated
accumulated point
node to transfer accumulated points to a designated accumulated point address
during up-
chaining and down-accounting by packaging and up-chaining the encrypted
blacklist data
and the encrypted symmetric key; alternatively, any member organization can
initiate a
blacklist data enquiring request via a corresponding business node, in the
case target
blacklist data is not uploaded by an enquiring organization, pays accumulated
points to
an accumulated point address of an organization holding the target blacklist
data through
an associated accumulated point node, uses a private key that matches the
random public
key to decrypt the packaged target blacklist data after the holding
organization has
monitored entry into the account of the accumulated points, and simultaneously
invokes
a public key of the enquiring organization to reversely encrypt the decrypted
target
blacklist data for return to the enquiring organization for decryption and
enquiry;
alternatively, any member organization can initiate a blacklist data deleting
request via a
corresponding business node, and deletes the target blacklist data after
signature
verification has been passed and deducts accumulated points in the associated
accumulated point address.
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[0069] Seen as such, when any member organization broadcasts the business
request via its
respective business node to the business alliance chain, the corresponding
business
request operation can be executed in the business alliance chain according to
consensus
results, if the business request executed is any one selected from a blacklist
data uploading
request, a blacklist data enquiring request, and a blacklist data deleting
request, the
relevant party that executes the current operation is bestowed with certain
accumulated
point award or deduction through the accumulated point alliance chain, thus
creating a
"paid" pattern of using shared blacklist data in exchange for accumulated
points, so that
the various member organizations are urged to timely and proactively share
blacklist data
in the business alliance chain on the basis of the above accumulated point
incentive policy,
and sharing scale and sharing value of the blacklist data are enhanced; in
addition, due to
the decentralized characteristic of the blockchain, use of the blacklist data
sharing method
based on a blockchain provided by the present invention requires no
centralized operating
organization, and possesses the characteristic of low operational cost, by
encrypted
storage of essential data, it is further possible to effectively protect
privacy of customers,
and achieve characteristics of safety and reliability.
[0070] As should be understood by persons skilled in the art, the blacklist
business request in
this embodiment is not limited to the above three modes as the blacklist data
uploading
request, the blacklist data enquiring request, and the blacklist data deleting
request, as
other realizable business requests can be further included, such as a
blacklist data
downloading request, a blacklist data modifying request, etc.
[0071] Understandably, please refer to Fig. 2, the blockchain in this
embodiment includes a
business alliance chain, an accumulated point alliance chain, and an API
server, of which
the business alliance chain consists of plural business nodes networked
together, the
accumulated point alliance chain consists of plural accumulated point nodes
networked
together, the API server has enclosed sdk kits and external service frameworks
of the
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business alliance chain and the accumulated point alliance chain, and the
function of the
API server is to connect the business alliance chain with the accumulated
point alliance
chain and to provide an externally servicing interface; the business alliance
chain includes
a business alliance chain body and an event monitoring server, of which the
business
alliance chain body is employed for the running of a smart contract and
providing
blacklist data storing and sharing services, and the event monitoring server
is employed
for monitoring events sent out of the business alliance chain body, and
simultaneously
initiating an accumulated point transferring request to the accumulated point
alliance
chain.
[0072] Specifically, please refer to Fig. 3, in this embodiment, the step of
initiating a blacklist
data uploading request via any one business node, using a random public key to
encrypt
a generated symmetric key while generated employing the symmetric key to
encrypt
blacklist data, and requesting by an associated accumulated point node to
transfer
accumulated points to a designated accumulated point address during up-
chaining and
down-accounting by packaging and up-chaining the encrypted blacklist data and
the
encrypted symmetric key includes:
[0073] initiating a blacklist data uploading request to the business alliance
chain by a member
organization through a business node belonging thereto, and simultaneously
designating
an accumulated point address for receiving accumulated points; calculating a
key value
of blacklist data to be uploaded, and judging through the key value whether
the blacklist
data to be uploaded has been stored in the business alliance chain; in the
case a judging
result is negative, employing a randomly generated symmetric key to encrypt
the blacklist
data and using a random public key to encrypt the symmetric key and executing
packaging and up-chaining operations, in the case the judging result is
positive,
terminating the current operation of uploading the blacklist data; and
requesting the
accumulated point alliance chain by the associated accumulated point node to
transfer
accumulated points to the designated accumulated point address, when it is
monitored
that the up-chaining operation and down-accounting of the blacklist data are
triggered.
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[0074] Further, the step of employing a randomly generated symmetric key to
encrypt the
blacklist data and using a random public key to encrypt the symmetric key and
executing
packaging and up-chaining operations includes:
[0075] associatively marking the blacklist data, the accumulated point
address, and the random
public key, wherein the blacklist data includes names, IDs, and detailed data;
using the
randomly generated symmetric key to encrypt the detailed data, and storing the
names,
the IDs, and the encrypted detailed data in the same file folder; and using
the random
public key to encrypt the symmetric key for a second time, and thereafter
packaging the
symmetric key encrypted for the second time and the file folder and uploading
the same
to the business alliance chain.
[0076] During specific implementation, when it is required for a certain
member organization to
upload the blacklist data it possesses to the business alliance chain, the
name and the ID
of the blacklist data are firstly desensitized, an accumulated point address
and a random
public key are designated to be associatively marked with the blacklist data
to be
uploaded, the key value of the blacklist data to be uploaded is thereafter
calculated on the
basis of the name, ID and detailed data of the blacklist data to be uploaded,
and it is
judged whether the blacklist data to be uploaded has already existed in the
business
alliance chain by comparison with key values of blacklist data already stored
in the
business alliance chain, in the case the judging result is negative, the
detailed data is
encrypted by means of a randomly generated symmetric key, the name, ID and the
encrypted detailed data are stored in the same file folder, the random public
key associated
above is thereafter used to encrypt the symmetric key for a second time, and
the
symmetric key encrypted for the second time and the file folder are finally
packaged and
uploaded to the business alliance chain; in the case the judging result is
positive, the
current operation of uploading the blacklist data is terminated, and a request
is sent to the
accumulated point alliance chain to obtain accumulated points until the event
monitoring
server monitors that the up-chaining operation and down-accounting of the
blacklist data
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are triggered.
[0077] As can be known from the above specific implementation process, since
the storage fields
of the packaged and up-chained blacklist data contain the symmetric key and
the file
folder encrypted with the symmetric key, in order to ensure safety of the
symmetric key,
it is required to use a random public key associated with the uploading
organization
address to separately encrypt the symmetric key for the second time, through
such mode
of encrypting for the second time the encrypted symmetric key and the
encrypted file
folder are stored together in the business alliance chain, whereby it is not
required for the
member organization to maintain the symmetric key used for each piece of
blacklist data,
and utilization complexity of the system is reduced at the same time of
ensuring safety;
in addition, by storing the encrypted symmetric key on the business alliance
chain, it is
made possible to make full use of bookkeeping characteristics of each business
node, and
to prevent the symmetric key from being lost.
[0078] With respect to enquiry of the blacklist data, this embodiment provides
two enquiring
patterns, namely a paid enquiring pattern and a free-of-charge enquiring
pattern, whose
specific realization steps are described in this embodiment as follows.
[0079] As regards basic information enquiring pattern, a basic information
enquiring request of
the blacklist data is initiated via any one business node, a name and an ID of
the target
blacklist data are input as key values in the business alliance chain, and
basic information
of the target blacklist data is returned by invoking a smart contract.
[0080] As regards detailed information enquiring pattern, please refer to Fig.
4, a blacklist data
enquiring request is initiated to the business alliance chain by a member
organization
through a business node belong thereto, and it is judged whether uploading is
performed
by the enquiring organization according to the accumulated point address
associated with
the blacklist data to be enquired; in the case a judging result is positive, a
private key
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associated with the accumulated point address is invoked to decrypt the
encrypted
symmetric key and extract a plaintext symmetric key, and thereafter the
plaintext
symmetric key is employed to decrypt detailed data in the file folder; in the
case the
judging result is negative, the accumulated point alliance chain is requested
through the
associated accumulated point node to pay accumulated points to the accumulated
point
address of the target blacklist data holding organization, a private key that
matches the
associated accumulated point address is used to decrypt the encrypted
symmetric key
after the holding organization has monitored entry into the account of the
accumulated
points, the plaintext symmetric key is extracted and then a public key of the
enquiring
organization is invoked to reversely encrypt the plaintext symmetric key, and
thereafter
the reversely encrypted symmetric key and the undecrypted detailed data are
packaged
and returned to the enquiring organization for decryption and obtainment.
[0081] The accumulated point node includes plural accumulated point addresses,
and the
enquiring organization can select any one accumulated point address with ample
accumulated points to pay accumulated points to the accumulated point address
of the
target blacklist data holding organization.
[0082] Through the above settings of two blacklist data enquiring patterns,
the enquiring
organization can make free selections of enquiring requirements of the
blacklist data, so
that the application of the blacklist data sharing method based on a
blockchain is rendered
more flexible.
[0083] Please refer to Fig. 5, in this embodiment, the step of initiating a
blacklist data deleting
request via a business node of the blacklist data holding organization itself,
and deleting
the target blacklist data after signature verification has been passed and
deducting
accumulated points in the associated accumulated point address includes:
[0084] initiating a blacklist data deleting request via a business node of the
blacklist data holding
organization itself, and judging through the business alliance chain whether
the
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accumulated point address associated therewith has ample accumulated points;
in the case
a judging result is positive, using a private key that matches the random
public key to
sign the target blacklist data, sending signature information together with
the blacklist
data deleting request to the business alliance chain, and deleting the target
blacklist data
after verification has been passed by the business alliance chain and
deducting
accumulated points in the associated accumulated point address, otherwise
terminating
the current operation of deleting the blacklist data; and in the case the
judging result is
negative, directly terminating the current operation of deleting the blacklist
data.
[0085] During specific implementation, when it is required for the blacklist
data holding
organization to delete a certain piece of blacklist data, a blacklist data
deleting request is
firstly initiated via a business node of its own, and it is thereafter judged
whether the
accumulated point address associated with the blacklist data has ample
accumulated
points; when the associated accumulated point address has ample accumulated
points, a
private key that matches the encrypting random public key is used to sign the
target
blacklist data, the signature information is sent together with the blacklist
data deleting
request to the business alliance chain, and the target blacklist data is
deleted after
verification has been passed by the business alliance chain and accumulated
points in the
associated accumulated point address are deducted, otherwise the current
operation of
deleting the blacklist data is terminated; when the associated accumulated
point address
has insufficient accumulated points, any other accumulated point address of
the holding
organization having ample accumulated points can be selected to deduct
corresponding
accumulated points, and the operation of deleting the blacklist data is
subsequently
executed; if none of the accumulated point addresses of the holding
organization has
ample accumulated points, the current operation of deleting the blacklist data
is directly
terminated.
[0086] As can be known from the above specific implementation process, when
the holding
organization deletes any blacklist data, it is firstly required to verify its
identification,
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namely to verify whether it is the uploading organization of this piece of
blacklist data,
and this piece of blacklist data can be deleted only after the verification
has been passed,
so that safety of blacklist data in the business alliance chain is guaranteed.
[0087] Embodiment 2
[0088] Please refer to Fig. 1 and Fig. 6, this embodiment provides a blacklist
data sharing system
based on a blockchain, and the system comprises:
[0089] a blockchain constructing unit 1, for constructing respective network
nodes by member
organizations, and sequentially networking the network nodes belonging to the
various
member organizations to construct a blockchain, wherein the network nodes
include
business nodes and accumulated point nodes;
[0090] a blacklist data uploading unit 2, for initiating a blacklist data
uploading request via any
one business node, using a random public key to encrypt a generated symmetric
key while
employing the generated symmetric key to encrypt blacklist data, and
requesting by an
associated accumulated point node to transfer accumulated points to a
designated
accumulated point address during up-chaining and down-accounting by packaging
and
up-chaining the encrypted blacklist data and the encrypted symmetric key;
[0091] a blacklist data enquiring unit 3, for initiating a blacklist data
enquiring request via any
one business node, in the case target blacklist data is not uploaded by an
enquiring
organization, paying accumulated points to an accumulated point address of an
organization holding the target blacklist data through an associated
accumulated point
node, using a private key that matches the random public key to decrypt the
packaged
target blacklist data after the holding organization has monitored entry into
the account
of the accumulated points, and simultaneously invoking a public key of the
enquiring
organization to reversely encrypt the decrypted target blacklist data for
return to the
enquiring organization for decryption and enquiry; and
[0092] a blacklist data deleting unit 4, for initiating a blacklist data
deleting request via a business
node of the blacklist data holding organization itself, and deleting the
target blacklist data
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after signature verification has been passed and deducting accumulated points
in the
associated accumulated point address.
[0093] Preferably, the blacklist data uploading unit 2 includes:
[0094] an upload requesting module 21, for initiating a blacklist data
uploading request to the
business alliance chain by a member organization through a business node
belonging
thereto, and simultaneously designating an accumulated point address for
receiving
accumulated points;
[0095] a duplicate-checking module 22, for calculating a key value of
blacklist data to be
uploaded, and judging through the key value whether the blacklist data to be
uploaded
has been stored in the business alliance chain;
[0096] a first executing module 23, for, in the case a judging result is
negative, employing a
randomly generated symmetric key to encrypt the blacklist data and using a
random
public key to encrypt the symmetric key and executing packaging and up-
chaining
operations, in the case the judging result is positive, terminating the
current operation of
uploading the blacklist data; and
[0097] an accumulated point transacting module 24, for requesting the
accumulated point
alliance chain by the associated accumulated point node to transfer
accumulated points
to the designated accumulated point address, when it is monitored that the up-
chaining
operation and down-accounting of the blacklist data are triggered.
[0098] Preferably, the blacklist data enquiring unit 3 includes:
[0099] an enquiry requesting module 31, for initiating a blacklist data
enquiring request to the
business alliance chain by a member organization through a business node
belong thereto,
and judging whether uploading is performed by the enquiring organization
according to
the accumulated point address associated with the blacklist data to be
enquired; and
[0100] a second executing module 32, for, in the case a judging result is
positive, invoking a
private key associated with the accumulated point address to decrypt the
encrypted
symmetric key and extract a plaintext symmetric key, and thereafter employing
the
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plaintext symmetric key to decrypt detailed data in the file folder; in the
case the judging
result is negative, requesting the accumulated point alliance chain through
the associated
accumulated point node to pay accumulated points to the accumulated point
address of
the target blacklist data holding organization, using a private key that
matches the
associated accumulated point address to decrypt the encrypted symmetric key
after the
holding organization has monitored entry into the account of the accumulated
points,
invoking a public key of the enquiring organization to reversely encrypt the
plaintext
symmetric key after extracting the plaintext symmetric key, and thereafter
packaging the
reversely encrypted symmetric key and the undecrypted detailed data and
returning the
same to the enquiring organization for decryption and obtainment.
[0101] Preferably, the blacklist data enquiring unit 3 includes:
[0102] an enquiry requesting module 31, for initiating a blacklist data
enquiring request to the
business alliance chain by a member organization through a business node
belong thereto,
and judging whether uploading is performed by the enquiring organization
according to
the accumulated point address associated with the blacklist data to be
enquired; and
[0103] a second executing module 32, for, in the case a judging result is
positive, invoking a
private key associated with the accumulated point address to decrypt the
encrypted
symmetric key and extract a plaintext symmetric key, and thereafter employing
the
plaintext symmetric key to decrypt detailed data in the file folder; in the
case the judging
result is negative, requesting the accumulated point alliance chain through
the associated
accumulated point node to pay accumulated points to the accumulated point
address of
the target blacklist data holding organization, using a private key that
matches the
associated accumulated point address to decrypt the encrypted symmetric key
after the
holding organization has monitored entry into the account of the accumulated
points,
invoking a public key of the enquiring organization to reversely encrypt the
plaintext
symmetric key after extracting the plaintext symmetric key, and thereafter
packaging the
reversely encrypted symmetric key and the undecrypted detailed data and
returning the
same to the enquiring organization for decryption and obtainment.
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[0104] Preferably, the blacklist data deleting unit 4 includes:
[0105] a deletion requesting module 41, for initiating a blacklist data
deleting request via a
business node of the blacklist data holding organization itself, and judging
through the
business alliance chain whether the accumulated point address associated
therewith has
ample accumulated points; and
[0106] a third executing module 42, for, in the case a judging result is
positive, using a private
key that matches the random public key to sign the target blacklist data,
sending signature
information together with the blacklist data deleting request to the business
alliance chain,
and deleting the target blacklist data after verification has been passed by
the business
alliance chain and deducting accumulated points in the associated accumulated
point
address, otherwise terminating the current operation of deleting the blacklist
data; and in
the case the judging result is negative, directly terminating the current
operation of
deleting the blacklist data.
[0107] In comparison with prior-art technology, the advantageous effects
achieved by the
blacklist data sharing system based on a blockchain provided by this
embodiment of the
present invention are identical with the advantageous effects achievable by
the blacklist
data sharing method based on a blockchain provided by Embodiment 1, so these
are not
redundantly described in this context.
[0108] As understandable to persons ordinarily skilled in the art, the entire
or partial steps
realizing the method of the present invention can be completed via a program
that
instructs relevant hardware, the program can be stored in a computer-readable
storage
medium, and subsumes the various steps of the method in the foregoing
embodiment
when it is executed, while the storage medium can be an ROM/RAM, a magnetic
disk,
an optical disk, or a memory card, etc.
[0109] What the above describes is merely directed to specific modes of
execution of the present
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invention, but the protection scope of the present invention is not restricted
thereby. Any
change or replacement easily conceivable to persons skilled in the art within
the technical
range disclosed by the present invention shall be covered by the protection
scope of the
present invention. Accordingly, the protection scope of the present invention
shall be
based on the protection scope as claimed in the Claims.
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