diff --git a/Cargo.lock b/Cargo.lock
index 55da711546..4a7a33976f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6348,6 +6348,7 @@ dependencies = [
  "enum-iterator",
  "itertools",
  "libc",
+ "libsecp256k1",
  "log",
  "num-derive",
  "num-traits",
diff --git a/program-runtime/Cargo.toml b/program-runtime/Cargo.toml
index b2583b3470..9225c8b0b1 100644
--- a/program-runtime/Cargo.toml
+++ b/program-runtime/Cargo.toml
@@ -31,6 +31,7 @@ solana_rbpf = { workspace = true }
 thiserror = { workspace = true }
 
 [dev-dependencies]
+libsecp256k1 = { workspace = true }
 solana-logger = { workspace = true }
 
 [lib]
diff --git a/program-runtime/src/lib.rs b/program-runtime/src/lib.rs
index 7c7e91d059..24aae9ca98 100644
--- a/program-runtime/src/lib.rs
+++ b/program-runtime/src/lib.rs
@@ -15,6 +15,7 @@ pub mod compute_budget;
 pub mod invoke_context;
 pub mod loaded_programs;
 pub mod log_collector;
+pub mod message_processor;
 pub mod pre_account;
 pub mod prioritization_fee;
 pub mod stable_log;
diff --git a/runtime/src/message_processor.rs b/program-runtime/src/message_processor.rs
similarity index 99%
rename from runtime/src/message_processor.rs
rename to program-runtime/src/message_processor.rs
index 5bef3071d8..8dc3125586 100644
--- a/runtime/src/message_processor.rs
+++ b/program-runtime/src/message_processor.rs
@@ -1,7 +1,5 @@
 use {
-    serde::{Deserialize, Serialize},
-    solana_measure::measure::Measure,
-    solana_program_runtime::{
+    crate::{
         compute_budget::ComputeBudget,
         invoke_context::InvokeContext,
         loaded_programs::LoadedProgramsForTxBatch,
@@ -9,6 +7,8 @@ use {
         sysvar_cache::SysvarCache,
         timings::{ExecuteDetailsTimings, ExecuteTimings},
     },
+    serde::{Deserialize, Serialize},
+    solana_measure::measure::Measure,
     solana_sdk::{
         account::WritableAccount,
         feature_set::FeatureSet,
@@ -189,7 +189,10 @@ impl MessageProcessor {
 mod tests {
     use {
         super::*,
-        solana_program_runtime::{declare_process_instruction, loaded_programs::LoadedProgram},
+        crate::{
+            declare_process_instruction, loaded_programs::LoadedProgram,
+            message_processor::MessageProcessor,
+        },
         solana_sdk::{
             account::{AccountSharedData, ReadableAccount},
             instruction::{AccountMeta, Instruction, InstructionError},
diff --git a/runtime/src/bank.rs b/runtime/src/bank.rs
index 4b6e738898..ab607f055f 100644
--- a/runtime/src/bank.rs
+++ b/runtime/src/bank.rs
@@ -62,7 +62,6 @@ use {
         epoch_accounts_hash::{self, EpochAccountsHash},
         epoch_rewards_hasher::hash_rewards_into_partitions,
         epoch_stakes::{EpochStakes, NodeVoteAccounts},
-        message_processor::MessageProcessor,
         partitioned_rewards::PartitionedEpochRewardsConfig,
         rent_collector::{CollectedInfo, RentCollector},
         rent_debits::RentDebits,
@@ -104,6 +103,7 @@ use {
             LoadedProgramsForTxBatch, WorkingSlot,
         },
         log_collector::LogCollector,
+        message_processor::MessageProcessor,
         sysvar_cache::SysvarCache,
         timings::{ExecuteDetailsTimings, ExecuteTimingType, ExecuteTimings},
     },
diff --git a/runtime/src/lib.rs b/runtime/src/lib.rs
index eb49381a21..3dd7eee23c 100644
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -48,7 +48,6 @@ pub mod inline_spl_associated_token_account;
 pub mod inline_spl_token;
 pub mod inline_spl_token_2022;
 pub mod loader_utils;
-pub mod message_processor;
 pub mod non_circulating_supply;
 pub mod partitioned_rewards;
 pub mod prioritization_fee;