[PostFinance] What is the difference between the SHA-IN and SHA-OUT passphrases?

[dmitry_fedyuk (Dmitrii Fediuk)]

• The SHA-IN passphrase (it is spelled as «SHA-IN pass phrase» in the merchant interface) is the key that is used to verify the input parameters of a transaction.
• The SHA-OUT passphrase is the key that is used to verify the returned parameters, once a transaction is completed.

[dmitry_fedyuk (Dmitrii Fediuk)]

See also:

• What is «SHA-IN signature»?
• What is «SHA-OUT signature»?