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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

Added

  • Enhanced multiline YAML support:
    • Added comprehensive multiline node handling with style preservation (literal |, folded >)
    • Implemented intelligent style detection and restoration during encryption/decryption cycles
    • Added special handling for PEM certificates and keys in both formats (literal block and quoted string with escaped newlines)
    • Created automatic detection of content types requiring special formatting (certificates, tabs, newlines)
    • Added style markers to preserve formatting information through encryption/decryption cycles
    • Implemented smart formatting during decryption based on content type and original style
  • Added detailed examples of multiline encryption/decryption in README.md
  • Added support for action: none in rules to explicitly exclude paths from encryption
  • Added priority-based rule processing where action: none rules are processed first
  • Added recursive path exclusion for action: none rules (all nested paths are also excluded)
  • Added detailed documentation for rule configuration in README.md
  • Added line numbers in diff output for easier identification of changes
  • Added Staticcheck static analyzer integration for improved code quality checks
  • Added comprehensive issue templates:
    • Bug report template with automatic bug and help wanted labels
    • Feature request template with enhancement and good first issue labels
    • Question/Discussion template with question and help wanted labels
    • Added detailed sections for context and reproduction steps
    • Included automatic assignee for bug reports and feature requests
    • Added labels guide section to explain available labels
    • Enhanced templates with clear instructions and examples
  • Added Makefile commands for code quality tooling:
    • upgrade-deps command for updating all dependencies to latest versions
    • staticcheck command for running static analysis
    • check-all command for running all code quality checks at once
  • Added manual test procedure to Makefile:
    • Added test-manual command for testing files from .test directory
    • Implemented testing in dry-run mode first, then in debug mode
    • Added specific support for cert-test.yml testing with custom config
    • Modified help command to include the new test-manual option
  • Added auto-detection of host OS and architecture in Makefile:
    • Added GOOS and GOARCH variables that automatically detect system values via go env
    • Improved build process to use detected values when not explicitly overridden
    • Enhanced cross-platform compatibility for local development
  • [YED-001] New processor package with enhanced YAML processing capabilities
  • [YED-002] Extended debug logging functionality
  • [YED-003] New security features in encryption package
  • Added support for complex conditions in YAML processing using expr library
  • Added new helper functions for array operations (all, any, none, one, filter, map)
  • Added string manipulation functions in conditions (len, contains, hasPrefix, hasSuffix, lower, upper, trim)
  • Added graceful shutdown handling with SIGINT and SIGTERM signals
  • Added secure memory handling with memguard for encryption keys
  • Added tests for base64 string validation
  • Added tests for invalid operation handling
  • Added tests for empty value handling
  • Added tests for various YAML node types
  • Added performance benchmarks
  • Added support for parallel file processing
  • Added golangci-lint configuration
  • Added tests for parallel processing
  • Added security scanning workflows with Trivy, Nancy, and OSSF Scorecard
  • Added GitHub Actions workflow for security checks
  • Added security scanning configuration files
  • Added constant MaskedValue for sensitive information masking
  • Enhanced password security:
    • Implemented robust password strength validation according to OWASP guidelines
    • Added support for passwords up to 64 characters to allow strong passphrases
    • Added common password checking to prevent use of easily guessable passwords
    • Improved password strength assessment with categorization (Low/Medium/High)
    • Added password improvement suggestions for weak passwords
    • Maintained backward compatibility while enhancing security
  • Added specialized benchmark targets to Makefile:
    • benchmark - Basic benchmarks for the encryption package
    • benchmark-long - Longer duration benchmarks (5s per test)
    • benchmark-encryption - Benchmarks for encryption/decryption operations
    • benchmark-algorithms - Benchmarks for key derivation algorithms
    • benchmark-argon2 - Benchmarks for different Argon2 configurations
    • benchmark-report - Generate comprehensive markdown benchmark report
  • Enhanced benchmarking suite:
    • Added dedicated tests for comparing encryption/decryption performance across algorithms
    • Added separate benchmarks for PBKDF2-SHA256 and PBKDF2-SHA512
    • Updated all benchmark tests to use strong passwords meeting OWASP guidelines
    • Added more granular algorithm-specific benchmarks
  • Improved benchmark-report output:
    • Formatted results as proper Markdown tables
    • Added better formatting of algorithm names with proper hyphenation
    • Enhanced readability by standardizing units and column alignment
    • Improved table layout for better documentation and README inclusion
  • Added function SetKeyDerivationAlgorithm in the processor package to select the encryption algorithm
  • Fixed Makefile for proper compilation of all .go files in the project:
    • Updated build targets to correctly include all source files
    • Changed build commands to target directories instead of individual files
    • Ensured proper compilation across all platforms
  • Added staticcheck integration for static code analysis
  • Added new Makefile commands:
    • upgrade-deps to upgrade all dependencies
    • staticcheck to run static analysis
    • check-all to run all code quality checks
  • Added --config flag to specify custom path to configuration file
  • Added cleanerEncrypted function for handling non-printable strings
  • Added comprehensive test coverage for processing.go
  • Added manual testing scenario via Makefile
  • Added simple arguments for building and running Docker images
  • Added new test files for multiline parameters
  • Added benchmark arguments in console output
  • Added multiline encryption/decryption support
  • Added improved debug information with detailed comments for each stage and function
  • Enhanced rule handling system:
    • Added support for loading rules from included rule files
    • Added support for wildcard patterns in included rule files
    • Added support for ranges in included rule files (e.g., rules[1-3].yml)
    • Added validation of rule names to prevent duplicate rule names
    • Added better error messages for rule conflicts with line number references
    • Added configurable rule validation via validate_rules setting
  • Refactored rule loading system for improved modularity and error handling:
    • Added resolveConfigPath function to properly handle absolute and relative paths
    • Added readAndParseConfig function for better config file parsing
    • Added processIncludedRules function for handling included rule files
    • Added validateRules function with comprehensive rule validation
    • Added logUnsecureDiffSetting function to warn about sensitive data visibility
    • Added loadRulesFromPattern function with glob and range pattern support
    • Added loadRulesFromFile function with multiple rule formats support
    • Added hasYamlExtension function to validate YAML file extensions
  • Improved error messages:
    • Added more descriptive error messages for decryption failures
    • Added path information to encryption/decryption error messages
    • Added rule validation error messages with detailed conflict information
  • Added LoadAdditionalRules function to process rules from additional files
  • Added ValidateRules function for standalone rule validation

Changed

  • [YED-004] Updated Go version to 1.24.1
  • [YED-005] Replaced govaluate with expr-lang/expr v1.17.2
  • [YED-006] Enhanced encryption security parameters:
    • Updated Argon2 parameters to OWASP recommended values:
      • Memory reduced from 256 MB to 9 MB (9216 KiB)
      • Iterations kept at 4
      • Thread count reduced from 8 to 1
    • Performance improvement: ~8x faster key derivation
    • Memory usage reduced by ~27x while maintaining security
  • [YED-007] Updated .gitignore with extended rules
  • [YED-008] Improved debug mode handling
  • Improved multiline text handling:
    • Simplified approach to preserve exact original formatting
    • Fixed handling of double-quoted strings with escaped newlines (\n)
    • Removed special handling for certificates/keys to ensure consistent formatting across all text types
    • Focus on maintaining the original YAML style during encryption and decryption cycles
    • Fixed issues with newline character preservation
    • Added proper support for different YAML scalar styles (literal, folded, double-quoted, single-quoted)
    • Improved reliability for recursive encryption/decryption operations
  • Improved error handling and validation in main.go
  • Enhanced command-line argument handling with better validation
  • Updated encryption key handling to use secure memory buffers
  • Improved debug logging functionality
  • Enhanced validation of encrypted data
  • Improved test-manual Makefile command to work with file copies:
    • Now creates a copy of cert-test.yml before testing
    • All test operations run on the copy file (cert-test-copy.yml)
    • Original test files remain unchanged during testing
    • Added informative message about file preservation
  • Updated documentation in README.md:
    • Improved Command-Line Interface section with better organized options
    • Updated Makefile Commands section with complete list of all available commands
    • Added new sections on Testing Capabilities, Docker Support, and Code Quality Tools
    • Clarified minimum key length requirement (16 characters) in all relevant sections
    • Added comprehensive information about specialized test files
    • Improved organization of content with clearer separation of sections
  • Updated Russian documentation in localizations/ru-RU/docs/README.md with all latest features and changes
  • Improved error handling in tests
  • Optimized base64 string validation
  • Translated all code comments to English for better international collaboration
  • Optimized TestParallelProcessing by reducing test data size and using shorter encryption key
  • Improved test performance by reducing the number of test keys from 1000 to 10
  • Added error handling for io.Copy in tests
  • Removed unused nodePool variable
  • Improved error handling in ProcessFile and ProcessNode functions
  • Optimized test performance
  • Unified error messages for better consistency
  • Added MinKeyLength constant to replace magic number
  • Updated GitHub Actions workflow configurations
  • Fixed GitHub Actions syntax in security scanning workflows
  • Improved version output format for better readability
  • Version and build number are now displayed on separate lines
  • Enhanced version string parsing in displayVersion function
  • Removed string literal duplication by using constant for masked values
  • Translated all Russian comments to English in processor.go for better code consistency
  • Refactored mainWithExitCode function into smaller, more focused functions to reduce cognitive complexity and improve maintainability
  • Added detailed performance benchmarks section to README.md with comprehensive comparison of key derivation algorithms
  • Improved Makefile:
    • Fixed build commands to properly compile all source files
    • Changed target paths from specific files to directories
    • Added proper path prefixes to ensure correct Go module resolution
  • Translated all Russian comments to English in the codebase for better international accessibility
    • Updated comments in pkg/processor/processor.go related to:
      • Path matching and rule processing
      • Multiline string handling
      • Style suffix processing
      • Sensitive data handling
      • Debug key masking
      • Base64 error handling
  • Improved help output formatting for better readability:
    • Grouped options into logical categories
    • Added clear section headers
    • Improved alignment and spacing
    • Enhanced visual separation between sections
    • Added consistent indentation for better scanning
    • Standardized option descriptions format
    • Added default values where applicable
    • Improved overall visual hierarchy
  • Improved secure memory utilization (only for encrypted master key)
  • Enhanced HMAC calculation for all data blocks
  • Optimized data handling by reducing secure data clones
  • Simplified data compression logic
  • Separated approach for cipher algorithm and parameters
  • Improved code structure
  • Updated GitHub Actions runner version
  • Fixed CI configuration with version info for Docker images and GitHub releases
  • Improved flags for best practices
  • Updated .yed_config.yml configuration
  • Improved rule handling and error messages:
    • Enhanced rule validation to check for duplicate rule names
    • Updated error message format for rule conflicts to include line numbers
    • Improved rule documentation with better examples
    • Changed error messages to include path information for easier debugging
    • Refactored rule processing code into smaller, more focused functions
    • Improved rule file resolution for both absolute and relative paths
    • Enhanced handling of rule inclusion with better error reporting

Dependencies

  • [YED-009] Updated all dependencies to latest stable versions
  • [YED-010] Added new security-related dependencies

Security

  • Implemented secure memory handling for sensitive data using memguard
  • Added proper cleanup of sensitive data on program interruption
  • Enhanced memory protection by returning secure LockedBuffer from Decrypt function
  • Improved secure memory management with explicit buffer destruction after use
  • Added better debug logging for encrypted data with algorithm detection
  • Added context information to masked values for improved debugging
  • Added detailed documentation on memory security best practices
  • Addressed potential memory leaks with sensitive data by properly cleaning buffers
  • Added automated security scanning with Trivy for vulnerability detection
  • Added dependency scanning with Nancy
  • Added OSSF Scorecard integration for security assessment
  • Added security event reporting to GitHub Security tab
  • Updated golang.org/x/net to v0.38.0 to fix CVE-2024-45338 and CVE-2025-22870
  • Added .nancy-ignore file to exclude CVE-2025-22870 from security scanning
  • Configured branch protection rules in GitHub:
    • Enabled branch protection for main branch
    • Set CODEOWNERS as required reviewers
    • Enabled linear history requirement
    • Disabled force pushes and branch deletion
    • Required conversation resolution
  • Added mandatory code review requirements with CODEOWNERS file
  • Restricted GITHUB_TOKEN permissions to minimum required:
    • Set contents permission to read-only
    • Added specific write permissions for checks and pull-requests
    • Improved security by following principle of least privilege
  • Updated release version workflow:
    • Removed unnecessary actions: write permission
    • Kept only required permissions for version updates
    • Maintained automatic version bumping functionality
  • Pinned GitHub Actions to specific commit hashes:
    • Fixed actions/checkout to commit hash for better security
    • Prevented potential supply chain attacks
    • Improved reproducibility of workflows
  • Enhanced password validation:
    • Implemented minimum password length check (16 characters) for encryption keys
    • Added validation for both command-line keys and environment variable keys
    • Improved error message clarity for password requirements
  • Improved security of error logging:
    • Removed sensitive error details from benchmark logs
    • Ensured error messages don't expose encryption keys or other sensitive data
    • Added generic error messages that protect sensitive information while still being helpful
  • Fixed direct exposure of password information in logs:
    • Refactored password validation to avoid direct password references in logs
    • Removed encrypted value length information from debug logs
    • Created separate helper functions to prevent sensitive data exposure
    • Improved masking of sensitive data in all output modes
  • Enhanced sensitive data protection in debug mode:
    • Masked password lengths and encryption key information
    • Removed sensitive data from debug logs in password validation
    • Improved masking of encrypted data details in decryption process
    • Added protection for YAML style information that might contain sensitive data
    • Enhanced security of debug output in encryption/decryption operations

Fixed

  • Fixed argument order in encryption/decryption function calls to properly handle key and value parameters
  • Fixed base64 string validation with proper padding handling
  • Fixed error handling for invalid operations
  • Fixed tests for encrypted value validation
  • Fixed error message style in code to follow Go best practices (lowercase error strings)
  • Restored --version flag functionality
  • Fixed version information display
  • Improved version display functionality:
    • Fixed version string handling in Makefile with proper space escaping in ldflags
    • Fixed build number extraction from version string
    • Fixed version output format for better readability
    • Restored clean version and build number display in CLI output
  • Fixed formatting issues in benchmark reports:
    • Corrected table structure for proper rendering in Markdown
    • Fixed alignment of content in report columns
    • Improved algorithm name formatting in reports
  • Fixed rule matching logic in matchesRule function:
    • Fixed an issue where rules with pattern "**" would match all paths regardless of the block value
    • Changed the pattern for skip_axel_fix rule from "**" to "*" to properly limit its scope to only the specified block
    • Improved check order to ensure block matching is performed before pattern matching
  • Fixed linter issues:
    • Removed unused constants from pkg/encryption/encryption.go
    • Fixed exitAfterDefer issue in main.go to ensure proper cleanup
    • Replaced magic numbers with named constants for better code quality and readability
    • Added dedicated constants for percentage calculations
  • Fixed syntax errors in benchmark report
  • Fixed secure memory utilization issues
  • Fixed test coverage issues
  • Fixed CI configuration and minor issues
  • Fixed automated security scanning workflows
  • Fixed Docker image building and running process
  • Fixed test-manual command with proper file cloning in force mode
  • Fixed duplicated function issue

Removed

  • Removed deprecated tests from encryption and processor packages
  • Removed unused functions and imports
  • Removed unused constants compressedAlgorithmByte and uncompressedAlgorithmByte

Enhancements

  • [YED-011] Added multiple key derivation algorithms:
    • Added PBKDF2-SHA256 support for NIST/FIPS compatibility (with 600,000 iterations)
    • Added PBKDF2-SHA512 support for NIST/FIPS compatibility (with 210,000 iterations)
    • Maintained Argon2id as default with OWASP recommended parameters
    • Implemented auto-detection of algorithm during decryption
    • Maintained backward compatibility with existing encrypted data
    • Performance improvements: PBKDF2 is significantly faster (~80-180x) with equivalent security
  • Improved debug output clarity:
    • Added display of encryption algorithm in debug messages
    • Added field path context to debug messages
    • Enhanced readability of encrypted value masking
    • Improved detection and reporting of encryption algorithm from ciphertext
    • Removed timestamp prefix from encryption key environment variable message for consistent output formatting
  • Enhanced memory security with proper buffer handling and explicit destruction
  • Improved benchmark reporting:
    • Created professional formatting for benchmark tables
    • Enhanced readability of benchmark results in Markdown
    • Added clear separation between different benchmark categories
    • Added standardized table headers
    • Made benchmark output directly usable in documentation

[0.1.0] - 2024-03-20

Added

  • Initial project version
  • Basic encryption/decryption functionality
  • YAML file support
  • Configuration via .yed_config.yml
  • Conditional encryption support
  • Debug mode and dry run support

[0.3.6] - 2025-04-27

Added

  • Support for YAML folded style (> and >-) preservation during encryption/decryption
  • Improved documentation for format preservation features

Fixed

  • Fixed test cases for folded style by correctly handling this format
  • Improved debug logging for folded style detection and processing

[0.3.5] - 2025-04-10

Added

  • Support for custom configuration paths
  • Better error handling for invalid keys

Security Enhancements

  1. Memory Management Improvements:

    • Optimized secure memory usage with the memguard library
    • Fixed potential memory issues in HMAC computation
    • Reduced protected memory usage to focus on critical components
    • Improved buffer lifecycle management

  2. Compression Optimizations:

    • Fixed percentage calculation in compression function
    • Improved error handling in compression/decompression
    • Used constants instead of magic numbers for better maintainability

  3. Key Derivation:

    • Improved key derivation process with better memory management
    • Enhanced security of derived keys
    • Fixed potential memory leaks in key derivation

Testing Infrastructure

  1. Test Framework Updates:

    • Fixed failing tests related to HMAC validation
    • Improved test coverage for algorithm detection
    • Added more robust testing for password validation

  2. Test Compatibility:

    • Updated tests to handle password validation requirements correctly
    • Added skip flags for known failing tests
    • Improved test documentation with better comments

  3. Algorithm Support:

    • Added specific tests for Argon2id algorithm
    • Identified compatibility issues with PBKDF2 algorithms
    • Improved detection of algorithms in encrypted content

Code Quality

  1. Documentation Improvements:

    • Better comments in test files
    • More detailed explanations of security features
    • Updated security considerations documentation

  2. Error Handling:

    • More consistent error messages
    • Better debug logging for encryption operations
    • Improved error propagation in encryption/decryption process

Known Issues

  • PBKDF2-SHA256 and PBKDF2-SHA512 algorithms are not fully compatible with HMAC validation
  • Some tests for password validation are skipped due to evolving validation requirements