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Title: Fix TcfCaV1 (Canada) OptimizedRange encoding to use Fibonacci by chuff · Pull Request #106 · IABTechLab/iabgpp-java · GitHub

Open Graph Title: Fix TcfCaV1 (Canada) OptimizedRange encoding to use Fibonacci by chuff · Pull Request #106 · IABTechLab/iabgpp-java

X Title: Fix TcfCaV1 (Canada) OptimizedRange encoding to use Fibonacci by chuff · Pull Request #106 · IABTechLab/iabgpp-java

Description: Summary Per the GPP Consent String Specification, the Canada (TcfCaV1) section encodes several fields as OptimizedRange / N-ArrayOfRanges, both of which use Fibonacci coding. They were using fixed-integer encoders. This ports the same fix to the 4.X architecture. VendorExpressConsent, VendorImpliedConsent, DisclosedVendors (OptimizedRange) — EncodableOptimizedFixedRange → new EncodableOptimizedFibonacciRange, backed by a new OptimizedFibonacciRangeEncoder (mirrors OptimizedFixedRangeEncoder, swapping in the existing FibonacciIntegerRangeEncoder). PubRestrictions (N-ArrayOfRanges(6,2), whose ids are an OptimizedRange) — EncodableArrayOfFixedIntegerRanges → new EncodableArrayOfOptimizedFibonacciRanges. The fixed variant is left untouched for TCF EU, which legitimately keeps the legacy encoding. (Base64 is already correct on 4.X — TcfCaV1 uses the compressed Base64Segment for all segments.) Output consistency Byte-identical to the master-based fix (#105): the updated test vectors match exactly — e.g. the populated vendor section becomes …BhADVqxGAD0AILVgAA and PubRestrictions becomes …CCgAS7o. Empty / bitfield-form data is unchanged. Scope This is the encoding fix only. Backwards-compatible decoding of pre-fix (fixed-range) strings is a separate PR stacked on this branch (it will show only the decode changes once this merges). Test plan mvn test — 344 tests, 0 failures mvn spotless:check — clean 🤖 Generated with Claude Code

Open Graph Description: Summary Per the GPP Consent String Specification, the Canada (TcfCaV1) section encodes several fields as OptimizedRange / N-ArrayOfRanges, both of which use Fibonacci coding. They were using fixed-...

X Description: Summary Per the GPP Consent String Specification, the Canada (TcfCaV1) section encodes several fields as OptimizedRange / N-ArrayOfRanges, both of which use Fibonacci coding. They were using fixed-...

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