Implement lint for Cyrptography objects

Author: Marcus Arnett

Sources/SuiKit/Types/Enums/Sui/Cryptography/SignatureScheme.swift

@@ -29,12 +29,14 @@ import Foundation
 ///
 /// - `ED25519`: Represents the Ed25519 cryptographic algorithm.
 /// - `SECP256K1`: Represents the SECP256K1 cryptographic algorithm.
+/// - `SECP256R1`: Represents the SECP256R1 (P256) cryptographic algorithm.
 public enum SignatureScheme: String {
     /// Represents the Ed25519 cryptographic algorithm.
     case ED25519
 
     /// Represents the SECP256K1 cryptographic algorithm.
     case SECP256K1
-    
+
+    /// Represents the SECP256R1 cryptographic algorithm.
     case SECP256R1
 }

Sources/SuiKit/Types/Structs/Cryptography/Signature.swift

@@ -100,6 +100,19 @@ public struct Signature: Equatable, KeyProtocol {
             let pubKeyBytes = Array(bytes[(1 + signature.count)...])
             let pubKey = try SECP256K1PublicKey(data: Data(pubKeyBytes))
             return Signature(signature: Data(signature), publickey: pubKey.key, signatureScheme: .SECP256K1)
+        } else if signatureScheme == "SECP256R1" {
+            if #available(macOS 13.0, *) {
+                let signature = Array(bytes[1...(bytes.count - SECP256R1PublicKey.LENGTH)])
+                let pubKeyBytes = Array(bytes[(1 + signature.count)...])
+                let pubKey = try SECP256R1PublicKey(data: Data(pubKeyBytes))
+                return Signature(
+                    signature: Data(signature),
+                    publickey: pubKey.key.compressedRepresentation,
+                    signatureScheme: .SECP256R1
+                )
+            } else {
+                throw AccountError.cannotBeDeserialized
+            }
         } else {
             throw AccountError.cannotBeDeserialized
         }

Sources/SuiKit/Types/Structs/Cryptography/SignatureSchemeFlags.swift

@@ -31,15 +31,15 @@ public struct SignatureSchemeFlags {
     public static var SIGNATURE_SCHEME_TO_FLAG: [String: UInt8] = [
         "ED25519": 0x00,   // Represents the Ed25519 signature scheme.
         "SECP256K1": 0x01,  // Represents the SECP256K1 signature scheme.
-        "SECP256R1": 0x02,
-        "ZkLogin": 0x05
+        "SECP256R1": 0x02,  // Represents the SECP256R1 (P256) signature scheme.
+        "ZkLogin": 0x05  // Represents the zkLogin signature scheme.
     ]
 
     /// A dictionary mapping the flags of signature schemes to their associated names.
     public static var SIGNATURE_FLAG_TO_SCHEME: [UInt8: String] = [
         0x00: "ED25519",   // Represents the flag for the Ed25519 signature scheme.
         0x01: "SECP256K1",  // Represents the flag for the SECP256K1 signature scheme.
-        0x02: "SECP256R1",
-        0x05: "ZkLogin"
+        0x02: "SECP256R1",  // Represents the flag for the SECP256R1 (P256) signature scheme.
+        0x05: "ZkLogin"  // Represents the flag for the zkLogin signature scheme.
     ]
 }