From bd3fff459c132f37293f8188ddb8e58533d06fea Mon Sep 17 00:00:00 2001
From: HenrikJannsen <boilingfrog@gmx.com>
Date: Thu, 3 Aug 2023 23:18:07 +0200
Subject: [PATCH 1/2] Use default hash function for 20 bit hashes

---
 contract/src/main/java/bisq/contract/ContractService.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contract/src/main/java/bisq/contract/ContractService.java b/contract/src/main/java/bisq/contract/ContractService.java
index 2f313a3242..5b9c19f629 100644
--- a/contract/src/main/java/bisq/contract/ContractService.java
+++ b/contract/src/main/java/bisq/contract/ContractService.java
@@ -77,7 +77,7 @@ public CompletableFuture<Boolean> shutdown() {
     }
 
     private <T extends Offer<?, ?>> byte[] getContractHash(Contract<T> contract) {
-        return DigestUtil.sha256(contract.getHashForSignature());
+        return DigestUtil.hash(contract.getHashForSignature());
     }
 
 }
\ No newline at end of file

From 20553dea78a1d940869445bc5ce854dfdfe3bb1a Mon Sep 17 00:00:00 2001
From: HenrikJannsen <boilingfrog@gmx.com>
Date: Thu, 3 Aug 2023 23:18:17 +0200
Subject: [PATCH 2/2] Change validation

---
 .../main/java/bisq/trade/protocol/messages/TradeMessage.java    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/trade/src/main/java/bisq/trade/protocol/messages/TradeMessage.java b/trade/src/main/java/bisq/trade/protocol/messages/TradeMessage.java
index 77fed858d1..b7f268f12c 100644
--- a/trade/src/main/java/bisq/trade/protocol/messages/TradeMessage.java
+++ b/trade/src/main/java/bisq/trade/protocol/messages/TradeMessage.java
@@ -46,7 +46,7 @@ protected TradeMessage(String tradeId, NetworkId sender) {
         this.tradeId = tradeId;
         this.sender = sender;
 
-        NetworkDataValidation.validateId(tradeId);
+        NetworkDataValidation.validateText(tradeId, 200); // For private channels we combine user profile IDs for channelId
     }
 
     public bisq.trade.protobuf.TradeMessage.Builder getTradeMessageBuilder() {