diff --git a/README.md b/README.md
index 7018637..61c978a 100644
--- a/README.md
+++ b/README.md
@@ -2,4 +2,10 @@
 
 > Specification: https://openwebstandard.org/rfc1
 
-Swift Secure Enclave Tool
\ No newline at end of file
+Swift Secure Enclave Tool
+
+
+Disable PQC algorithms:
+```shell
+swiftc -D DISABLE_QPC swift-secure-enclave-tool-v2.swift
+```
diff --git a/swift-secure-enclave-tool-v2.swift b/swift-secure-enclave-tool-v2.swift
index a276c43..d42ad0b 100644
--- a/swift-secure-enclave-tool-v2.swift
+++ b/swift-secure-enclave-tool-v2.swift
@@ -410,6 +410,8 @@ func generateSecureEnclaveP256KeyPair(sign: Bool, request: GenerateSecureEnclave
     }
 }
 
+#if DISABLE_QPC
+#else
 func generateSecureEnclaveMlKemKeyPair(keyLen: Int, request: GenerateSecureEnclaveKeyPairRequest) -> GenerateSecureEnclaveMlKemKeyPairResponse? {
     guard let accessCtrl = getSecAccessControlCreateWithFlags(controlFlag: request.controlFlag) else {
         return nil
@@ -434,6 +436,7 @@ func generateSecureEnclaveMlKemKeyPair(keyLen: Int, request: GenerateSecureEncla
         return nil
     }
 }
+#endif
 
 func signingPrivateKeyToResponse(_ privateKeyReference: SecureEnclave.P256.Signing.PrivateKey) -> GenerateSecureEnclaveP256KeyPairResponse {
     let publicKeyPointBase64 = privateKeyReference.publicKey.x963Representation.base64EncodedString()
@@ -459,6 +462,8 @@ func keyAgreementPrivateKeyToResponse(_ privateKeyReference: SecureEnclave.P256.
     )
 }
 
+#if DISABLE_QPC
+#else
 func mlKem768PrivateKeyToResponse(_ privateKeyReference: SecureEnclave.MLKEM768.PrivateKey) -> GenerateSecureEnclaveMlKemKeyPairResponse {
     let publicKeyDerBase64 = privateKeyReference.publicKey.rawRepresentation.base64EncodedString()
     let dataRepresentationBase64 = privateKeyReference.dataRepresentation.base64EncodedString()
@@ -478,6 +483,7 @@ func mlKem1024PrivateKeyToResponse(_ privateKeyReference: SecureEnclave.MLKEM102
         data_representation_base64: dataRepresentationBase64
     )
 }
+#endif
 
 func recoverSecureEnclaveP256PublicKey(request: RecoverSecureEnclavePublicKeyRequest, sign: Bool) -> GenerateSecureEnclaveP256KeyPairResponse? {
     guard let privateKeyDataRepresentation = Data(
@@ -507,6 +513,8 @@ func recoverSecureEnclaveP256PublicKey(request: RecoverSecureEnclavePublicKeyReq
     }
 }
 
+#if DISABLE_QPC
+#else
 func recoverSecureEnclaveMlKemPublicKey(request: RecoverSecureEnclavePublicKeyRequest, keyLen: Int) -> GenerateSecureEnclaveMlKemKeyPairResponse? {
     guard let privateKeyDataRepresentation = Data(
         base64Encoded: request.dataRepresentationBase64
@@ -537,6 +545,7 @@ func recoverSecureEnclaveMlKemPublicKey(request: RecoverSecureEnclavePublicKeyRe
         return nil
     }
 }
+#endif
 
 func computeSecureEnclaveP256Ecsign(request: ComputeP256EcSignRequest) -> ComputeSecureEnclaveP256EcsignResponse? {
     guard let privateKeyDataRepresentation = Data(
@@ -630,6 +639,8 @@ func computeSecureEnclaveP256Ecdh(request: ComputeEcdhRequest) -> ComputeSecureE
     }
 }
 
+#if DISABLE_QPC
+#else
 func computeSecureEnclaveMlKemEcdh(request: ComputeEcdhRequest, keyLen: Int) -> ComputeSecureEnclaveEcdhResponse? {
     guard let privateKeyDataRepresentation = Data(
         base64Encoded: request.dataRepresentationBase64
@@ -676,6 +687,7 @@ func computeSecureEnclaveMlKemEcdh(request: ComputeEcdhRequest, keyLen: Int) ->
         return nil
     }
 }
+#endif
 
 func externalSpec() -> ExternalSpecResponse {
     return ExternalSpecResponse(
@@ -706,6 +718,8 @@ if (command == "generate_p256_ecdh_keypair") {
     exitOkWithJson(generateSecureEnclaveP256KeyPair(sign: false, request: request))
 }
 
+#if DISABLE_QPC
+#else
 if (command == "generate_mlkem768_ecdh_keypair") {
     let request = parseGenerateSecureEnclaveKeyPairRequest()!;
     exitOkWithJson(generateSecureEnclaveMlKemKeyPair(keyLen: 768, request: request))
@@ -715,6 +729,7 @@ if (command == "generate_mlkem1024_ecdh_keypair") {
     let request = parseGenerateSecureEnclaveKeyPairRequest()!;
     exitOkWithJson(generateSecureEnclaveMlKemKeyPair(keyLen: 1024, request: request))
 }
+#endif
 
 if (command == "recover_p256_ecsign_public_key") {
     let request = parseRecoverSecureEnclavePublicKeyRequest()!
@@ -728,6 +743,8 @@ if (command == "recover_p256_ecdh_public_key") {
     exitOkWithJson(response)
 }
 
+#if DISABLE_QPC
+#else
 if (command == "recover_mlkem768_public_key") {
     let request = parseRecoverSecureEnclavePublicKeyRequest()!
     let response =  recoverSecureEnclaveMlKemPublicKey(request: request, keyLen: 768)
@@ -739,6 +756,7 @@ if (command == "recover_mlkem1024_public_key") {
     let response =  recoverSecureEnclaveMlKemPublicKey(request: request, keyLen: 1024)
     exitOkWithJson(response)
 }
+#endif
 
 if (command == "compute_p256_ecsign") {
     let request = parseComputeP256EcSignRequest()!;
@@ -752,6 +770,8 @@ if (command == "compute_p256_ecdh") {
     exitOkWithJson(response)
 }
 
+#if DISABLE_QPC
+#else
 if (command == "compute_mlkem768_ecdh") {
     let request = parseComputeEcdhRequest()!;
     let response =  computeSecureEnclaveMlKemEcdh(request: request, keyLen: 768)
@@ -763,6 +783,7 @@ if (command == "compute_mlkem1024_ecdh") {
     let response =  computeSecureEnclaveMlKemEcdh(request: request, keyLen: 1024)
     exitOkWithJson(response)
 }
+#endif
 
 if (command == "external_spec") {
     exitOkWithJson(externalSpec())
@@ -791,16 +812,19 @@ if (command == "help" || command == "-h" || command == "--help") {
     print("is_support_secure_enclave                                       - is Secure Enclave supported")
     print("generate_p256_ecsign_keypair --control-flag <>                  - generate Secure Enclave P256 EC sign key pair")
     print("generate_p256_ecdh_keypair --control-flag <>                    - generate Secure Enclave P256 EC DH key pair")
-    print("generate_mlkem768_ecdh_keypair --control-flag <>                - generate Secure Enclave ML-KEM-768 key pair")
-    print("generate_mlkem1024_ecdh_keypair --control-flag <>               - generate Secure Enclave ML-KEM-1024 key pair")
     print("recover_p256_ecsign_public_key --private-key <>                 - recover Secure Enclave P256 EC sign key pair")
     print("recover_p256_ecdh_public_key --private-key <>                   - recover Secure Enclave P256 EC DH key pair")
-    print("recover_mlkem768_public_key --private-key <>                    - recover Secure Enclave ML-KEM-768 key pair")
-    print("recover_mlkem1024_public_key --private-key <>                   - recover Secure Enclave ML-KEM-1024 key pair")
     print("compute_p256_ecsign --private-key <> --message-base64 <> [--message-type <>]  - compure Secure Enclave P256 EC sign")
     print("compute_p256_ecdh --private-key <> --ephemera-public-key <>      - compure Secure Enclave P256 EC DH")
+    #if DISABLE_QPC
+    #else
+    print("generate_mlkem768_ecdh_keypair --control-flag <>                - generate Secure Enclave ML-KEM-768 key pair")
+    print("generate_mlkem1024_ecdh_keypair --control-flag <>               - generate Secure Enclave ML-KEM-1024 key pair")
+    print("recover_mlkem768_public_key --private-key <>                    - recover Secure Enclave ML-KEM-768 key pair")
+    print("recover_mlkem1024_public_key --private-key <>                   - recover Secure Enclave ML-KEM-1024 key pair")
     print("compute_mlkem768_ecdh --private-key <> --ephemera-public-key <>  - compure Secure Enclave ML-KEM-768")
     print("compute_mlkem1024_ecdh --private-key <> --ephemera-public-key <> - compure Secure Enclave ML-KEM-1024")
+    #endif
     print("external_spec                                                    - external specification")
     print("external_public_key --parameter <>                               - external public key")
     print("external_sign --parameter <> --alg ES256  --message-base64 <>    - external sign")