diff --git a/Cargo.lock b/Cargo.lock
index c328995..4fd20cb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -74,9 +74,9 @@ dependencies = [
 
 [[package]]
 name = "anstream"
-version = "0.6.12"
+version = "0.6.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "96b09b5178381e0874812a9b157f7fe84982617e48f71f4e3235482775e5b540"
+checksum = "d96bd03f33fe50a863e394ee9718a706f988b9079b20c3784fb726e7678b62fb"
 dependencies = [
  "anstyle",
  "anstyle-parse",
@@ -157,7 +157,7 @@ checksum = "16e62a023e7c117e27523144c5d2459f4397fcc3cab0085af8e2224f643a0193"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -168,7 +168,7 @@ checksum = "c980ee35e870bd1a4d2c8294d4c04d0499e67bca1e4b5cefcc693c2fa00caea9"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -406,9 +406,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.86"
+version = "1.0.88"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f9fa1897e4325be0d68d48df6aa1a71ac2ed4d27723887e7754192705350730"
+checksum = "02f341c093d19155a6e41631ce5971aac4e9a868262212153124c15fa22d1cdc"
 
 [[package]]
 name = "cfg-if"
@@ -473,7 +473,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -834,9 +834,9 @@ dependencies = [
 
 [[package]]
 name = "darling"
-version = "0.20.7"
+version = "0.20.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a5d17510e4a1a87f323de70b7b1eaac1ee0e37866c6720b2d279452d0edf389"
+checksum = "54e36fcd13ed84ffdfda6f5be89b31287cbb80c439841fe69e04841435464391"
 dependencies = [
  "darling_core",
  "darling_macro",
@@ -844,27 +844,27 @@ dependencies = [
 
 [[package]]
 name = "darling_core"
-version = "0.20.7"
+version = "0.20.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a98eea36a7ff910fa751413d0895551143a8ea41d695d9798ec7d665df7f7f5e"
+checksum = "9c2cf1c23a687a1feeb728783b993c4e1ad83d99f351801977dd809b48d0a70f"
 dependencies = [
  "fnv",
  "ident_case",
  "proc-macro2",
  "quote",
  "strsim 0.10.0",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
 name = "darling_macro"
-version = "0.20.7"
+version = "0.20.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d6a366a3f90c5d59a4b91169775f88e52e8f71a0e7804cc98a8db2932cf4ed57"
+checksum = "a668eda54683121533a393014d8692171709ff57a7d61f187b6e782719f8933f"
 dependencies = [
  "darling_core",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -948,14 +948,14 @@ checksum = "487585f4d0c6655fe74905e2504d8ad6908e4db67f744eb140876906c2f3175d"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
 name = "dyn-clone"
-version = "1.0.16"
+version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "545b22097d44f8a9581187cdf93de7a71e4722bf51200cfaba810865b49a495d"
+checksum = "0d6ef0072f8a535281e4876be788938b528e9a1d43900b82c2569af7da799125"
 
 [[package]]
 name = "ecdsa"
@@ -1275,7 +1275,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -1391,9 +1391,9 @@ dependencies = [
 
 [[package]]
 name = "half"
-version = "1.8.2"
+version = "1.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eabb4a44450da02c90444cf74558da904edde8fb4e9035a9a6a4e15445af0bd7"
+checksum = "1b43ede17f21864e81be2fa654110bf1e793774238d86ef8555c37e6519c0403"
 
 [[package]]
 name = "hashbrown"
@@ -1418,9 +1418,9 @@ checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
 [[package]]
 name = "hermit-abi"
-version = "0.3.6"
+version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bd5256b483761cd23699d0da46cc6fd2ee3be420bbe6d020ae4a091e70b7e9fd"
+checksum = "379dada1584ad501b383485dd706b8afb7a70fcbc7f4da7d780638a5a6124a60"
 
 [[package]]
 name = "hex"
@@ -1993,9 +1993,9 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
 name = "openssl"
-version = "0.10.62"
+version = "0.10.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8cde4d2d9200ad5909f8dac647e29482e07c3a35de8a13fce7c9c7747ad9f671"
+checksum = "95a0481286a310808298130d22dd1fef0fa571e05a8f44ec801801e84b216b1f"
 dependencies = [
  "bitflags 2.4.2",
  "cfg-if 1.0.0",
@@ -2014,7 +2014,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -2025,9 +2025,9 @@ checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.98"
+version = "0.9.101"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1665caf8ab2dc9aef43d1c0023bd904633a6a05cb30b0ad59bec2ae986e57a7"
+checksum = "dda2b0f344e78efc2facf7d195d098df0dd72151b26ab98da807afc26c198dff"
 dependencies = [
  "cc",
  "libc",
@@ -2154,7 +2154,7 @@ checksum = "266c042b60c9c76b8d53061e52b2e0d1116abc57cefc8c5cd671619a56ac3690"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -2202,9 +2202,9 @@ dependencies = [
 
 [[package]]
 name = "pkg-config"
-version = "0.3.28"
+version = "0.3.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69d3587f8a9e599cc7ec2c00e331f71c4e69a5f9a4b8a6efd5b07466b9736f9a"
+checksum = "d231b230927b5e4ad203db57bbcbee2802f6bce620b1e4a9024a07d94e2907ec"
 
 [[package]]
 name = "polyval"
@@ -2237,7 +2237,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a41cf62165e97c7f814d2221421dbb9afcbcdb0a88068e5ea206e19951c2cbb5"
 dependencies = [
  "proc-macro2",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -2286,7 +2286,7 @@ dependencies = [
  "prost 0.12.3",
  "prost-types 0.12.3",
  "regex",
- "syn 2.0.50",
+ "syn 2.0.51",
  "tempfile",
  "which",
 ]
@@ -2314,7 +2314,7 @@ dependencies = [
  "itertools 0.11.0",
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -2338,7 +2338,7 @@ dependencies = [
 [[package]]
 name = "quartz-cw"
 version = "0.1.0"
-source = "git+ssh://git@github.com/informalsystems/bisenzone-cw-mvp.git?branch=hu55a1n1/11-use-quartz#c49fc8da96d2039179aec962c85f190aee999d62"
+source = "git+ssh://git@github.com/informalsystems/bisenzone-cw-mvp.git?branch=hu55a1n1/11-use-quartz#0e877198416e3c2fb85777c177bcbabb3ca80b69"
 dependencies = [
  "cosmwasm-schema",
  "cosmwasm-std",
@@ -2348,8 +2348,6 @@ dependencies = [
  "serde",
  "serde_json",
  "sha2 0.10.8",
- "tendermint 0.34.0",
- "tendermint-light-client",
  "thiserror",
 ]
 
@@ -2365,6 +2363,7 @@ dependencies = [
  "quartz-proto",
  "quartz-relayer",
  "quartz-tee-ra",
+ "rand",
  "serde",
  "serde_json",
  "tendermint 0.34.0",
@@ -2408,7 +2407,7 @@ dependencies = [
 [[package]]
 name = "quartz-tee-ra"
 version = "0.1.0"
-source = "git+ssh://git@github.com/informalsystems/bisenzone-cw-mvp.git?branch=hu55a1n1/11-use-quartz#c49fc8da96d2039179aec962c85f190aee999d62"
+source = "git+ssh://git@github.com/informalsystems/bisenzone-cw-mvp.git?branch=hu55a1n1/11-use-quartz#0e877198416e3c2fb85777c177bcbabb3ca80b69"
 dependencies = [
  "cosmwasm-schema",
  "cosmwasm-std",
@@ -2880,7 +2879,7 @@ checksum = "7eb0b34b42edc17f6b7cac84a52a1c5f0e1bb2227e997ca9011ea3dd34e8610b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -2913,7 +2912,7 @@ checksum = "0b2e6b945e9d3df726b65d6ee24060aff8e3533d431f677a9695db04eff9dfdb"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -2953,7 +2952,7 @@ dependencies = [
  "darling",
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -3045,12 +3044,12 @@ checksum = "e6ecd384b10a64542d77071bd64bd7b231f4ed5940fba55e98c3de13824cf3d7"
 
 [[package]]
 name = "socket2"
-version = "0.5.5"
+version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b5fac59a5cb5dd637972e5fca70daf0523c9067fcdc4842f053dae04a18f8e9"
+checksum = "05ffd9c0a93b7543e062e759284fcf5f5e3b098501104bfbdde4d404db792871"
 dependencies = [
  "libc",
- "windows-sys 0.48.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -3137,9 +3136,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.50"
+version = "2.0.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "74f1bdc9872430ce9b75da68329d1c1746faf50ffac5f19e02b71e37ff881ffb"
+checksum = "6ab617d94515e94ae53b8406c628598680aa0c9587474ecbe58188f7b345d66c"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3192,9 +3191,9 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.10.0"
+version = "3.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a365e8cd18e44762ef95d87f284f4b5cd04107fec2ff3052bd6a3e6069669e67"
+checksum = "85b77fafb263dd9d05cbeac119526425676db3784113aa9295c88498cbf8bff1"
 dependencies = [
  "cfg-if 1.0.0",
  "fastrand",
@@ -3473,7 +3472,7 @@ checksum = "a953cb265bef375dae3de6663da4d3804eee9682ea80d8e2542529b73c531c81"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -3612,7 +3611,7 @@ checksum = "5b8a1e28f2deaa14e508979454cb3a223b10b938b45af148bc0986de36f1923b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -3728,7 +3727,7 @@ dependencies = [
  "proc-macro2",
  "prost-build",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -3782,7 +3781,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
 
 [[package]]
@@ -3980,7 +3979,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
  "wasm-bindgen-shared",
 ]
 
@@ -4014,7 +4013,7 @@ checksum = "642f325be6301eb8107a83d12a8ac6c1e1c54345a7ef1a9261962dfefda09e66"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -4237,5 +4236,5 @@ checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.50",
+ "syn 2.0.51",
 ]
diff --git a/enclaves/quartz/Cargo.toml b/enclaves/quartz/Cargo.toml
index a8c47e5..d6bcda8 100644
--- a/enclaves/quartz/Cargo.toml
+++ b/enclaves/quartz/Cargo.toml
@@ -8,10 +8,11 @@ clap = { version = "4.1.8", features = ["derive"] }
 color-eyre = "0.6.2"
 cosmwasm-std = "1.4.0"
 prost = "0.12"
-tendermint = "0.34.0"
-tendermint-light-client = "0.34.0"
+rand = "0.8.5"
 serde = { version = "1.0.189", features = ["derive"] }
 serde_json = "1.0.94"
+tendermint = "0.34.0"
+tendermint-light-client = "0.34.0"
 tonic = "0.11"
 tokio = { version = "1.0", features = ["macros", "rt-multi-thread"] }
 
diff --git a/enclaves/quartz/src/main.rs b/enclaves/quartz/src/main.rs
index 569c67e..b852e06 100644
--- a/enclaves/quartz/src/main.rs
+++ b/enclaves/quartz/src/main.rs
@@ -37,13 +37,19 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     let light_client_opts = LightClientOpts::new(
         args.chain_id,
-        args.trusted_height,
-        args.trusted_hash,
-        args.trust_threshold,
+        args.trusted_height.into(),
+        Vec::from(args.trusted_hash)
+            .try_into()
+            .expect("invalid trusted hash"),
+        (
+            args.trust_threshold.numerator(),
+            args.trust_threshold.denominator(),
+        ),
         args.trusting_period,
         args.max_clock_drift,
         args.max_block_lag,
-    );
+    )?;
+
     let config = Config::new(
         EpidAttestor.mr_enclave()?,
         Duration::from_secs(30 * 24 * 60),
diff --git a/enclaves/quartz/src/server.rs b/enclaves/quartz/src/server.rs
index d53a852..201c78b 100644
--- a/enclaves/quartz/src/server.rs
+++ b/enclaves/quartz/src/server.rs
@@ -1,9 +1,14 @@
-use quartz_cw::{msg::instantiate::CoreInstantiate, state::Config};
+use quartz_cw::{
+    msg::{execute::session_create::SessionCreate, instantiate::CoreInstantiate},
+    state::{Config, Nonce},
+};
 use quartz_proto::quartz::{
     core_server::Core, InstantiateRequest as RawInstantiateRequest,
-    InstantiateResponse as RawInstantiateResponse, SessionCreateRequest, SessionCreateResponse,
+    InstantiateResponse as RawInstantiateResponse, SessionCreateRequest as RawSessionCreateRequest,
+    SessionCreateResponse as RawSessionCreateResponse,
 };
-use quartz_relayer::types::InstantiateResponse;
+use quartz_relayer::types::{InstantiateResponse, SessionCreateResponse};
+use rand::Rng;
 use tonic::{Request, Response, Status};
 
 use crate::attestor::Attestor;
@@ -35,6 +40,7 @@ where
         _request: Request<RawInstantiateRequest>,
     ) -> TonicResult<Response<RawInstantiateResponse>> {
         let core_instantiate_msg = CoreInstantiate::new(self.config.clone());
+
         let quote = self
             .attestor
             .quote(core_instantiate_msg)
@@ -45,14 +51,17 @@ where
     }
     async fn session_create(
         &self,
-        request: Request<SessionCreateRequest>,
-    ) -> TonicResult<Response<SessionCreateResponse>> {
-        println!("Got a request: {:?}", request);
+        _request: Request<RawSessionCreateRequest>,
+    ) -> TonicResult<Response<RawSessionCreateResponse>> {
+        let nonce = rand::thread_rng().gen::<Nonce>();
+        let session_create_msg = SessionCreate::new(nonce);
 
-        let reply = SessionCreateResponse {
-            message: "Hello!".to_string(),
-        };
+        let quote = self
+            .attestor
+            .quote(session_create_msg)
+            .map_err(|e| Status::internal(e.to_string()))?;
 
-        Ok(Response::new(reply))
+        let response = SessionCreateResponse::new(nonce, quote);
+        Ok(Response::new(response.into()))
     }
 }
diff --git a/utils/quartz-relayer/src/types.rs b/utils/quartz-relayer/src/types.rs
index 367be79..c6ed744 100644
--- a/utils/quartz-relayer/src/types.rs
+++ b/utils/quartz-relayer/src/types.rs
@@ -1,6 +1,9 @@
 use cosmwasm_std::{HexBinary, StdError};
-use quartz_cw::state::{Config, RawConfig};
-use quartz_proto::quartz::InstantiateResponse as RawInstantiateResponse;
+use quartz_cw::state::{Config, Nonce, RawConfig};
+use quartz_proto::quartz::{
+    InstantiateResponse as RawInstantiateResponse,
+    SessionCreateResponse as RawSessionCreateResponse,
+};
 use serde::{Deserialize, Serialize};
 
 #[derive(Clone, Debug, PartialEq)]
@@ -82,3 +85,83 @@ impl From<InstantiateResponseMsg> for RawInstantiateResponseMsg {
         }
     }
 }
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct SessionCreateResponse {
+    message: SessionCreateResponseMsg,
+}
+
+impl SessionCreateResponse {
+    pub fn new(nonce: Nonce, quote: Vec<u8>) -> Self {
+        Self {
+            message: SessionCreateResponseMsg { nonce, quote },
+        }
+    }
+
+    pub fn quote(&self) -> &[u8] {
+        &self.message.quote
+    }
+
+    pub fn into_message(self) -> SessionCreateResponseMsg {
+        self.message
+    }
+}
+
+impl TryFrom<RawSessionCreateResponse> for SessionCreateResponse {
+    type Error = StdError;
+
+    fn try_from(value: RawSessionCreateResponse) -> Result<Self, Self::Error> {
+        let raw_message: RawSessionCreateResponseMsg = serde_json::from_str(&value.message)
+            .map_err(|e| StdError::parse_err("RawSessionCreateResponseMsg", e))?;
+        Ok(Self {
+            message: raw_message.try_into()?,
+        })
+    }
+}
+
+impl From<SessionCreateResponse> for RawSessionCreateResponse {
+    fn from(value: SessionCreateResponse) -> Self {
+        let raw_message: RawSessionCreateResponseMsg = value.message.into();
+        Self {
+            message: serde_json::to_string(&raw_message).expect("infallible serializer"),
+        }
+    }
+}
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct SessionCreateResponseMsg {
+    nonce: Nonce,
+    quote: Vec<u8>,
+}
+
+impl SessionCreateResponseMsg {
+    pub fn into_tuple(self) -> (Nonce, Vec<u8>) {
+        (self.nonce, self.quote)
+    }
+}
+
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+pub struct RawSessionCreateResponseMsg {
+    nonce: HexBinary,
+    quote: HexBinary,
+}
+
+impl TryFrom<RawSessionCreateResponseMsg> for SessionCreateResponseMsg {
+    type Error = StdError;
+
+    fn try_from(value: RawSessionCreateResponseMsg) -> Result<Self, Self::Error> {
+        Ok(Self {
+            nonce: value.nonce.to_array()?,
+            quote: value.quote.into(),
+        })
+    }
+}
+
+impl From<SessionCreateResponseMsg> for RawSessionCreateResponseMsg {
+    fn from(value: SessionCreateResponseMsg) -> Self {
+        Self {
+            nonce: value.nonce.into(),
+            quote: value.quote.into(),
+        }
+    }
+}