BayunCoreSDK Python Programming Guide
  • 1. Introduction
  • 2. Getting Started
  • 3. Installing Bayun Library
  • 4. Authenticating with Bayun
  • 5. BayunCoreSDK Operations
    • 5.1 Lock/Unlock File
    • 5.2 Lock/Unlock Text
    • 5.3 Lock/Unlock Binary Data
  • 6. Groups
    • 6.1 Create Group
    • 6.2 Get My Groups
    • 6.3 Join Public Group
    • 6.4 Get Unjoined Public Groups
    • 6.5 Get Group By Id
    • 6.6 Add Group Member
    • 6.7 Remove Group Member
    • 6.8 Leave Group
    • 6.9 Delete Group
  • 7. Run the Application
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  • 5.3.1 Lock Binary Data
  • 5.3.2 Lock Binary Data with encryption-policy
  • 5.3.3 Unlock Binary Data

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  1. 5. BayunCoreSDK Operations

5.3 Lock/Unlock Binary Data

Previous5.2 Lock/Unlock TextNext6. Groups

Last updated 4 years ago

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5.3.1 Lock Binary Data

The lockData function of BayunCore class locks binary data with default encryption-policy dictated by server settings.

The function takes the following parameters :

  • sessionId : Unique SessionId which is received in the authenticate function response.

  • data : Data to be locked.

    • dataType : bytes

  • data_len : Length of the data to be locked.

data = b'Hello World!'
data_len = len(data)
lockDataOutput = bayunCore.lockData("<sessionId>", data, data_len)
locked_data = lockDataOutput.data
locked_binary_data = locked_data.tobytes()
locked_binary_data_len = lockDataOutput.data_len

5.3.2 Lock Binary Data with encryption-policy

The lockData function with encryption-policy as an optional parameter locks data with the encryption key dictated by the policy. The function takes the following parameters :

  • sessionId : Unique SessionId which is received in the authenticate function response.

  • data : Data to be locked.

    • dataType : bytes

  • data_len : Length of the data to be locked.

  • encryptionPolicy : determines the key for locking.

  • keyGenerationPolicy : determines the policy to generate the data encryption key.

  • groupId : GroupId is required if encryptionPolicy is BayunEncryptionPolicyGroup.

Note : If encryption-policy is other than BayunEncryptionPolicyGroup then groupId should be empty string.

from BayunCore import BayunEncryptionPolicy
from BayunCore import BayunKeyGenerationPolicy

data = b'Hello World!'
data_len = len(data)
encryptionPolicy = BayunEncryptionPolicy.Company
keyGenerationPolicy = BayunKeyGenerationPolicy.Static
lockDataOutput = bayunCore.lockData("<sessionId>", data, data_len, encryptionPolicy, keyGenerationPolicy, "<groupId>")
locked_data = lockDataOutput.data
locked_binary_data = locked_data.tobytes()
locked_binary_data_len = lockDataOutput.data_len

5.3.3 Unlock Binary Data

The unlockData function of BayunCore class unlocks a locked binary data. The function takes the following parameters :

  • sessionId : Unique SessionId which is received in the authenticate function response.

  • data : Data to be unlocked.

    • dataType : bytes

  • data_len : Length of data to be unlocked.

unlockData_output =  bayunCore.unlockData(sessionId, <data>, <data_len>)
unlocked_data = unlockData_output.data
unlocked_binary_data = unlocked_data.tobytes()
unlocked_binary_data_len = unlockData_output.data_len
BayunEncryptionPolicy
BayunKeyGenerationPolicy