diff --git a/services/identity/Cargo.lock b/services/identity/Cargo.lock
index 520ac6fff..4f62347e4 100644
--- a/services/identity/Cargo.lock
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@@ -1,1961 +1,1962 @@
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 [[package]]
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 [[package]]
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 dependencies = [
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 [[package]]
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 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
 [[package]]
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 [[package]]
 name = "zeroize"
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4756f7db3f7b5574938c3eb1c117038b8e07f95ee6718c0efad4ac21508f1efd"
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 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f8f187641dad4f680d25c4bfc4225b418165984179f26ca76ec4fb6441d3a17"
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 ]
diff --git a/services/identity/Cargo.toml b/services/identity/Cargo.toml
index 3bdc7a2e5..a42bfdd97 100644
--- a/services/identity/Cargo.toml
+++ b/services/identity/Cargo.toml
@@ -1,26 +1,27 @@
 [package]
 name = "identity"
 version = "0.1.0"
 edition = "2021"
 
 [dependencies]
 tonic = "0.6"
 prost = "0.9"
 futures-core = "0.3"
 tokio = { version = "1.0", features = ["macros", "rt-multi-thread"] }
 opaque-ke = { version = "1.2.0", features = ["std"] }
 argon2 = "0.3"
 curve25519-dalek = "3"
 sha2 = "0.9"
 digest = "0.9"
 clap = { version = "3.1.12", features = ["derive"] }
 derive_more = "0.99"
 rusoto_core = "0.47.0"
 rusoto_dynamodb = "0.47.0"
 tracing = "0.1"
 tracing-subscriber = "0.3"
 chrono = "0.4.19"
 rand = "0.8"
+bytes = "1.1"
 
 [build-dependencies]
 tonic-build = "0.6"
diff --git a/services/identity/src/database.rs b/services/identity/src/database.rs
index a5abddcca..2be475106 100644
--- a/services/identity/src/database.rs
+++ b/services/identity/src/database.rs
@@ -1,285 +1,314 @@
 use std::collections::HashMap;
 
+use bytes::Bytes;
 use chrono::{DateTime, ParseError, Utc};
 use opaque_ke::{errors::ProtocolError, ServerRegistration};
 use rusoto_core::{Region, RusotoError};
 use rusoto_dynamodb::{
   AttributeValue, DynamoDb, DynamoDbClient, GetItemError, GetItemInput,
-  GetItemOutput,
+  GetItemOutput, PutItemError, PutItemInput, PutItemOutput,
 };
 use tracing::{error, info};
 
 use crate::opaque::Cipher;
 use crate::token::{AccessToken, AuthType};
 
 pub struct DatabaseClient {
   client: DynamoDbClient,
 }
 
 impl DatabaseClient {
   pub fn new(region: Region) -> Self {
     DatabaseClient {
       client: DynamoDbClient::new(region),
     }
   }
 
   pub async fn get_pake_registration(
     &self,
     user_id: String,
   ) -> Result<Option<ServerRegistration<Cipher>>, Error> {
     let primary_key =
       create_simple_primary_key(("userID".to_string(), user_id.clone()));
     let get_item_input = GetItemInput {
       table_name: "identity-pake-registration".to_string(),
       key: primary_key,
       consistent_read: Some(true),
       ..GetItemInput::default()
     };
     let get_item_result = self.client.get_item(get_item_input).await;
     match get_item_result {
       Ok(GetItemOutput {
         item: Some(item), ..
       }) => {
         if let Some(AttributeValue {
           b: Some(server_registration_bytes),
           ..
         }) = item.get("pakeRegistrationData")
         {
           match ServerRegistration::<Cipher>::deserialize(
             server_registration_bytes,
           ) {
             Ok(server_registration) => Ok(Some(server_registration)),
             Err(e) => {
               error!(
                 "Failed to deserialize ServerRegistration struct for user {}: {}",
                 user_id, e
               );
               Err(Error::Pake(e))
             }
           }
         } else {
           error!("No registration data found for registered user {}", user_id);
           Err(Error::MissingAttribute)
         }
       }
       Ok(_) => {
         info!(
           "No item found for user {} in PAKE registration table",
           user_id
         );
         Ok(None)
       }
       Err(e) => {
         error!(
           "DynamoDB client failed to get registration data for user {}: {}",
           user_id, e
         );
         Err(Error::Rusoto(e))
       }
     }
   }
 
+  pub async fn put_pake_registration(
+    &self,
+    user_id: String,
+    registration: ServerRegistration<Cipher>,
+  ) -> Result<PutItemOutput, RusotoError<PutItemError>> {
+    let input = PutItemInput {
+      table_name: "identity-pake-registration".to_string(),
+      item: HashMap::from([
+        (
+          "userID".to_string(),
+          AttributeValue {
+            s: Some(user_id),
+            ..Default::default()
+          },
+        ),
+        (
+          "pakeRegistrationData".to_string(),
+          AttributeValue {
+            b: Some(Bytes::from(registration.serialize())),
+            ..Default::default()
+          },
+        ),
+      ]),
+      ..PutItemInput::default()
+    };
+    self.client.put_item(input).await
+  }
+
   pub async fn get_token(
     &self,
     user_id: String,
     device_id: String,
   ) -> Result<Option<AccessToken>, Error> {
     let primary_key = create_composite_primary_key(
       ("userID".to_string(), user_id.clone()),
       ("deviceID".to_string(), device_id.clone()),
     );
     let get_item_input = GetItemInput {
       table_name: "identity-tokens".to_string(),
       key: primary_key,
       consistent_read: Some(true),
       ..GetItemInput::default()
     };
     let get_item_result = self.client.get_item(get_item_input).await;
     match get_item_result {
       Ok(GetItemOutput {
         item: Some(mut item),
         ..
       }) => {
         let created = parse_created_attribute(item.remove("created"))?;
         let auth_type = parse_auth_type_attribute(item.remove("authType"))?;
         let valid = parse_valid_attribute(item.remove("valid"))?;
         let token = parse_token_attribute(item.remove("token"))?;
         Ok(Some(AccessToken {
           user_id: user_id,
           device_id: device_id,
           token: token,
           created: created,
           auth_type: auth_type,
           valid: valid,
         }))
       }
       Ok(_) => {
         info!(
           "No item found for user {} and device {} in token table",
           user_id, device_id
         );
         Ok(None)
       }
       Err(e) => {
         error!(
           "DynamoDB client failed to get token for user {} on device {}: {}",
           user_id, device_id, e
         );
         Err(Error::Rusoto(e))
       }
     }
   }
 }
 
 #[derive(
   Debug, derive_more::Display, derive_more::From, derive_more::Error,
 )]
 pub enum Error {
   #[display(...)]
   Rusoto(RusotoError<GetItemError>),
   #[display(...)]
   Pake(ProtocolError),
   #[display(...)]
   MissingAttribute,
   #[display(...)]
   InvalidTimestamp(ParseError),
   #[display(...)]
   InvalidAuthType,
 }
 
 type AttributeName = String;
 
 fn create_simple_primary_key(
   partition_key: (AttributeName, String),
 ) -> HashMap<AttributeName, AttributeValue> {
   HashMap::from([(
     partition_key.0,
     AttributeValue {
       s: Some(partition_key.1),
       ..Default::default()
     },
   )])
 }
 
 fn create_composite_primary_key(
   partition_key: (AttributeName, String),
   sort_key: (AttributeName, String),
 ) -> HashMap<AttributeName, AttributeValue> {
   let mut primary_key = create_simple_primary_key(partition_key);
   primary_key.insert(
     sort_key.0,
     AttributeValue {
       s: Some(sort_key.1),
       ..Default::default()
     },
   );
   primary_key
 }
 
 fn parse_created_attribute(
   attribute: Option<AttributeValue>,
 ) -> Result<DateTime<Utc>, Error> {
   if let Some(AttributeValue {
     s: Some(created), ..
   }) = attribute
   {
     created.parse().map_err(|e| Error::InvalidTimestamp(e))
   } else {
     Err(Error::MissingAttribute)
   }
 }
 
 fn parse_auth_type_attribute(
   attribute: Option<AttributeValue>,
 ) -> Result<AuthType, Error> {
   if let Some(AttributeValue {
     s: Some(auth_type), ..
   }) = attribute
   {
     match auth_type.as_str() {
       "password" => Ok(AuthType::Password),
       "wallet" => Ok(AuthType::Wallet),
       unsupported => Err(Error::InvalidAuthType),
     }
   } else {
     Err(Error::MissingAttribute)
   }
 }
 
 fn parse_valid_attribute(
   attribute: Option<AttributeValue>,
 ) -> Result<bool, Error> {
   if let Some(AttributeValue {
     bool: Some(valid), ..
   }) = attribute
   {
     Ok(valid)
   } else {
     Err(Error::MissingAttribute)
   }
 }
 
 fn parse_token_attribute(
   attribute: Option<AttributeValue>,
 ) -> Result<String, Error> {
   if let Some(AttributeValue { s: Some(token), .. }) = attribute {
     Ok(token)
   } else {
     Err(Error::MissingAttribute)
   }
 }
 
 #[cfg(test)]
 mod tests {
   use super::*;
 
   #[test]
   fn test_create_simple_primary_key() {
     let partition_key_name = "userID".to_string();
     let partition_key_value = "12345".to_string();
     let partition_key =
       (partition_key_name.clone(), partition_key_value.clone());
     let mut primary_key = create_simple_primary_key(partition_key);
     assert_eq!(primary_key.len(), 1);
     let attribute = primary_key.remove(&partition_key_name);
     assert!(attribute.is_some());
     assert_eq!(
       attribute,
       Some(AttributeValue {
         s: Some(partition_key_value),
         ..Default::default()
       })
     );
   }
 
   #[test]
   fn test_create_composite_primary_key() {
     let partition_key_name = "userID".to_string();
     let partition_key_value = "12345".to_string();
     let partition_key =
       (partition_key_name.clone(), partition_key_value.clone());
     let sort_key_name = "deviceID".to_string();
     let sort_key_value = "54321".to_string();
     let sort_key = (sort_key_name.clone(), sort_key_value.clone());
     let mut primary_key = create_composite_primary_key(partition_key, sort_key);
     assert_eq!(primary_key.len(), 2);
     let partition_key_attribute = primary_key.remove(&partition_key_name);
     assert!(partition_key_attribute.is_some());
     assert_eq!(
       partition_key_attribute,
       Some(AttributeValue {
         s: Some(partition_key_value),
         ..Default::default()
       })
     );
     let sort_key_attribute = primary_key.remove(&sort_key_name);
     assert!(sort_key_attribute.is_some());
     assert_eq!(
       sort_key_attribute,
       Some(AttributeValue {
         s: Some(sort_key_value),
         ..Default::default()
       })
     )
   }
 }