52 lines
2.7 KiB
Markdown
52 lines
2.7 KiB
Markdown
# Payment Simulation Recipe Candidates
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This list targets software-only development and testing environments.
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## Frame And Transport Simulation
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1. Length-prefix builder/parser pairs for command and response replay.
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2. Status code mutation recipes (success/error branch testing).
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3. Header-length fuzzing recipes for parser hardening.
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## TR-31 Simulation
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1. Header mutation recipes (usage, mode, exportability, optional block counts).
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2. Optional-block truncation and malformed-length negative tests.
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3. Prefix-normalization recipes (`R` prefix handling).
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4. Create TR-31 key block recipes for symmetric test keys and round-trip parse validation.
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## TR-34 Simulation
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1. Envelope section split/rebuild recipes.
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2. ASN.1 length corruption tests.
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3. Signature-length mismatch recipes.
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## KCV And Key Lifecycle Simulation
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1. KCV cross-check recipes across TDES, AES-CMAC, and HMAC methods.
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2. Variant-mask simulation for derived key classes.
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3. Deterministic fixed-vector recipes for regression checks.
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## ECDH Simulation
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1. Static keypair handshake vectors.
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2. Shared-info permutations in Concat KDF.
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3. Curve mismatch and malformed key negative tests.
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## DUKPT Simulation
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1. IPEK derivation from known BDK/KSN vectors.
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2. Counter progression replay across KSN ranges.
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3. Variant-mask output sets for transaction classes.
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## EMV/Scheme-Level Candidate Recipes
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1. ARQC generation checks for AES-CMAC profiles with fixed session keys and known CDOL payloads.
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2. ARPC generation checks for AES-CMAC response profiles with explicit ARC/CSU/proprietary-data assembly.
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3. Tag concatenation and canonical ordering checks.
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4. Session derivation input normalization checks.
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5. Cryptogram preimage assembly validation recipes.
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6. PAN parser and network classifier recipes for Visa (`4`, typically 13/16/19 digits), Mastercard (`51`-`55`, `2221`-`2720`, 16 digits), American Express (`34`, `37`, 15 digits), and Discover (`6011`, `644`-`649`, `65`, and `622126`-`622925`, typically 16-19 digits), including Luhn validation and issuer-range explanation.
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## AWS Payment Cryptography Candidate Recipes
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1. `EncryptData` and `DecryptData` parity vectors for AES, TDES, and RSA.
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2. `ReEncryptData` parity vectors for decrypt-then-encrypt workflows.
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3. `GenerateMac` and `VerifyMac` parity vectors across HMAC, CMAC, ISO9797, DUKPT, AS2805, and EMV MAC profiles.
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4. `VerifyAuthRequestCryptogram` preimage-validation recipes for the implemented AES-CMAC EMV profiles.
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5. DUKPT derivation-plus-cipher recipes for AWS derived-key lab testing.
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6. ECDH plus wrap/unwrap plus TR-31 inspection recipes for `TranslateKeyMaterial` interoperability debugging.
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7. Remaining gap-tracking recipes for encrypted PIN translation, richer EMV session derivation, and fuller TR-31/TR-34 generation flows.
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