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changes.mady.by.user Alexandre Munsch

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New Version 2

changes.mady.by.user Alexandre Munsch

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Key

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Object

Length (bytes)

Comments

ID length

1

Length of the key ID

Key ID

5var

RSA key ID used for the session key encryption

Encrypted KEK

256

Encrypted KEK block:

  • encrypted with RSA key (RSA/ECB/OAEPWithSHA-256AndMGF1Padding)

  • cleartext contains the KEK (16 bytes) and the IV (16 bytes)

Encrypted sensitive card data

var

Encrypted sensitive card data:

  • encrypted with KEK key (AES/CBC/NoPadding)

  • cleartext which can contain the following tags:

    • ‘56’ (Track1)

    • ‘57’ (Track2)

    • ‘5A’ (PAN)

    • ‘90’ (Issuer Public Key Certificate)

    • ‘9F46’ (ICC Public Key Certificate)

    • ‘9F6B’ (Track2 data - MasterCard)

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Below is an example of data received after a successful card data export:

Code Block
3cb9dd2f509ead9d7d203cf268e9df4f61b88ccf4a7cf25e62c19099088689a7098309be3ed7d3e61c3a7053cb9dd2f509ead9d7d203cf268e9df4f61b88ccf4a7cf25e62c19099088689a7098309be3ed7d3e61c3a7
26d56a45124f1ce7f1551db784d4452e8da020bf7732e9365e9092643d5ebde4fb6a8706d83fc46fab5f0
7d0729abd11604207565f6c513d81ebbae3d81a4f131b5ff1eef45b06febc2d49ffd37956f418c61322c5
df44552170af975f1a35dfda7dce7304a3637dcce962e4a466cf77d9374af8400f1cc029c037f37e3bcbf
2279adba8383145b226d4c4be4fa95381f66845ccd56a3b98fe933fac5b9e379ad55ce46b997a62ff1455
0719421f8891d49396f9b7ee203493bc140958081d1525857e1df74ff3fb6d367577cf2dd1636e4961cce
391a2943f79035e1e076d4f210a3b3c657d79cbda1c22ee1e4f28dbe71679b9fd14ea01645209825507cc
161522f505524279b3379aaa45dfd3e697c79024b28523b9ba2f267cc477413cb87b57ba5696d2983599d
ccbcd08ab9cd15d36f2507022a81e4f1f684089e9679ab5e8f06bb8efbe66e78500fb0187e142cce11499
76c5aec2b1b6b

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