Validate payment secret when decoding #1840
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The `payment_secret` feature was made mandatory in #1810 and is the default in other implementations as well. We can thus force it to be available when decoding onion payloads, which simplifies downstream components (no need to handle the case where a `payment_secret` may be missing anymore).
pm47
reviewed
Jun 9, 2021
pm47
reviewed
Jun 10, 2021
eclair-core/src/main/scala/fr/acinq/eclair/payment/relay/NodeRelay.scala
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eclair-core/src/main/scala/fr/acinq/eclair/payment/send/PaymentInitiator.scala
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The `NodeRelay` actors are indexed by `payment_secret`, which ensures we will never send a mismatching `payment_secret`.
It's confusing to end with `Request` because `PaymentRequest` usually refers to Bolt 11 invoices. We now explicitly namespace these requests to distinguish between the PaymentInitiator and the PaymentLifecycle ones.
pm47
approved these changes
Jun 11, 2021
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The
payment_secretfeature was made mandatory in #1810 and is the default in other implementations as well. We can thus force it to be available when decoding onion payloads, which simplifies downstream components (no need to handle the case where apayment_secretmay be missing anymore).I kept it optional in
PaymentRequest, otherwise all the spec test vectors would be considered invalid. We may want to update the spec test vectors once all implementations have turned on mandatory support for payment secrets and then make it a non-optional field inPaymentRequest.