feat: Add SIWE

bedrock/Cargo.toml

@@ -34,17 +34,31 @@ chrono = { version = "0.4.41", default-features = false, features = [
     "now",
     "std",
 ] }
+dryoc = { git = "https://github.com/brndnmtthws/dryoc", rev = "e0e0ef0" }
+getrandom = "0.2"
 hex = "0.4.3"
+http = "1.0"
 log = "0.4.22"
 proc-macro2 = "1.0"
 quote = "1.0"
 rand = "0.9.1"
 ruint = { version = "1.15.0", default-features = false, features = ["serde"] }
+semaphore-rs-utils = "0.5.0"
 serde = "1.0.219"
 serde_json = "1.0"
 syn = { version = "2.0", features = ["full"] }
 thiserror = "2.0.12"
-tokio = { version = "1.45.1", features = ["time"], optional = true }
+time = { version = "0.3", features = [
+    "serde",
+    "formatting",
+    "macros",
+    "parsing",
+] }
+tokio = { version = "1.45.1", features = [
+    "time",
+    "rt",
+    "rt-multi-thread",
+], optional = true }
 uniffi = { workspace = true, features = ["build", "tokio"] }
 
 [dev-dependencies]
@@ -55,5 +69,8 @@ alloy = { version = "1.0.17", default-features = false, features = [
     "reqwest-rustls-tls",
 ] }
 dotenvy = "0.15.7"
+pretty_assertions = "1.4.0"
+sha2 = "0.10.8"
+siwe = "0.6.1"
 tokio = { version = "1.45.1", features = ["time"] }
 tokio-test = "0.4.4"

bedrock/src/smart_account/mod.rs

@@ -26,11 +26,20 @@ mod transaction;
 /// Reference: <https://docs.uniswap.org/contracts/permit2/overview>
 mod permit2;
 
+/// Adds SIWE (Sign-In with Ethereum) capabilities to `SafeSmartAccount`
+mod siwe;
+
 pub use transaction_4337::{
     EncodedSafeOpStruct, PackedUserOperation, UserOperation, ENTRYPOINT_4337,
     GNOSIS_SAFE_4337_MODULE,
 };
 
+// Re-export SIWE types for external use
+pub use siwe::{
+    AuthConfig, SiweCapable, SiweSignatureResponse, SiweValidationResponse,
+    ValidationSuccess, WorldAppAuthFlow,
+};
+
 const RESTRICTED_TYPED_DATA_CONTRACTS: &[Address] = &[
     // Permit2 requires using the custom `sign_permit2_transfer` method which has additional validation and other permission verification.
     PERMIT2_ADDRESS,