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CVR Decoder

Decode Card Verification Results (from Tag 9F10) — bit-by-bit for Visa & Mastercard

🔍 Input

Enter an 8-character hex string (4 bytes). Spaces are OK.

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📖 About This Tool

What is the CVR Decoder?

The CVR Decoder interprets Card Verification Results, which are part of the Issuer Application Data (Tag 9F10). The CVR contains information about cryptogram types, PIN verification results, and issuer script counters.

🛠️ How to Use
  1. Enter the CVR hex value.
  2. Click Decode to see the verification results.
❓ FAQ

Where is the CVR located?

The CVR is embedded within the Issuer Application Data (Tag 9F10). Its format and position vary by card scheme — Mastercard uses a specific CVR format within M/Chip IAD.