signedGen 1.0.0

A package for generating signed certificates with issuer and subject information.

Signed Generator

A Python package for generating and handling signed verifiable credentials with merkle proof generation capabilities.

Installation

pip install -r requirements.txt

Features

• Generate and issue verifiable credentials
• Create and verify credential proofs
• Handle merkle proof generation
• Sign verifiable credentials
• Schema validation and management
• Attribute handling for credentials

Package Structure

signed_generator/
├── __init__.py
├── attribute.py
├── constants.py
├── credential_proof_handler.py
├── issue_certificate_gen.py
├── merkle_proof_gen.py
├── schema.py
├── sign_vc.py
├── signed_gen.py
├── utils.py
├── tests/
└── requirements.txt

Core Components

Credential Generation and Signing

• signed_gen.py: Main module for generating signed credentials
• sign_vc.py: Handles the signing process for verifiable credentials
• issue_certificate_gen.py: Manages certificate generation and issuance

Proof Generation and Handling

• merkle_proof_gen.py: Generates merkle proofs for credentials
• credential_proof_handler.py: Handles credential proof operations

Supporting Modules

• schema.py: Defines and validates credential schemas
• attribute.py: Manages credential attributes
• utils.py: Utility functions for the package
• constants.py: Package-wide constants

Usage Example

from signed_generator import SignedCertGenerator, Issuer


issuer = Issuer(
    name="Test Issuer",
    website="https://issuer.example.com",
    email="[e-mail]",
    did="did:example:123",
    profile_link="https://issuer.example.com/profile",
    revocation_list="https://issuer.example.com/revocation",
    crypto_address="123abc"
)

# Initialize the generator
generator = SignedCertGenerator()
unsigned_json = "[{}]"

signed_cert_data = generator.generate_signed_cert_templated_data(
    issuer=issuer,
    unsigned_json=unsigned_json,
    private_key="private_key",
    valid_from="valid_from",
    valid_until="valid_until",
)

# Create sign transaction hash
tx_hash = generator.generate_transaction(
    issuer=issuer,
    signed_cert_data=signed_cert_data,
    gasprice=gasprice,
    gaslimit=gaslimit,
    unsigned_json=unsigned_json
)

# Create and sign a credential
signed_json = generator.generate_signed_certificate(
    signed_cert_data=signed_cert_data, 
    tx_hash=tx_hash
)
print(signed_json)

Requirements

See requirements.txt for package dependencies.

Testing

The package includes a test suite in the tests/ directory. To run the tests:

python -m pytest tests/

License

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Contributing

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Contact

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