feat(dpp): added identity public key private key validation methods

packages/rs-dpp/src/identity/identity_public_key/methods/hash/mod.rs

@@ -2,6 +2,7 @@ mod v0;
 
 use crate::identity::IdentityPublicKey;
 use crate::ProtocolError;
+use dashcore::Network;
 pub use v0::*;
 
 impl IdentityPublicKeyHashMethodsV0 for IdentityPublicKey {
@@ -10,4 +11,14 @@ impl IdentityPublicKeyHashMethodsV0 for IdentityPublicKey {
             IdentityPublicKey::V0(v0) => v0.public_key_hash(),
         }
     }
+
+    fn validate_private_key_bytes(
+        &self,
+        private_key_bytes: &[u8],
+        network: Network,
+    ) -> Result<bool, ProtocolError> {
+        match self {
+            IdentityPublicKey::V0(v0) => v0.validate_private_key_bytes(private_key_bytes, network),
+        }
+    }
 }

packages/rs-dpp/src/identity/identity_public_key/methods/hash/v0/mod.rs

@@ -1,6 +1,14 @@
 use crate::ProtocolError;
+use dashcore::Network;
 
 pub trait IdentityPublicKeyHashMethodsV0 {
     /// Get the original public key hash
     fn public_key_hash(&self) -> Result<[u8; 20], ProtocolError>;
+
+    /// Verifies that the private key bytes match this identity public key
+    fn validate_private_key_bytes(
+        &self,
+        private_key_bytes: &[u8],
+        network: Network,
+    ) -> Result<bool, ProtocolError>;
 }

packages/rs-dpp/src/identity/identity_public_key/v0/methods/mod.rs

@@ -5,7 +5,9 @@ use crate::util::hash::ripemd160_sha256;
 use crate::ProtocolError;
 use anyhow::anyhow;
 use dashcore::hashes::Hash;
-use dashcore::PublicKey as ECDSAPublicKey;
+use dashcore::key::Secp256k1;
+use dashcore::secp256k1::SecretKey;
+use dashcore::{Network, PublicKey as ECDSAPublicKey};
 use platform_value::Bytes20;
 
 impl IdentityPublicKeyHashMethodsV0 for IdentityPublicKeyV0 {
@@ -45,4 +47,80 @@ impl IdentityPublicKeyHashMethodsV0 for IdentityPublicKeyV0 {
             }
         }
     }
+
+    fn validate_private_key_bytes(
+        &self,
+        private_key_bytes: &[u8],
+        network: Network,
+    ) -> Result<bool, ProtocolError> {
+        match self.key_type {
+            KeyType::ECDSA_SECP256K1 => {
+                let secp = Secp256k1::new();
+                let secret_key = match SecretKey::from_slice(private_key_bytes) {
+                    Ok(secret_key) => secret_key,
+                    Err(_) => return Ok(false),
+                };
+                let private_key = dashcore::PrivateKey::new(secret_key, network);
+
+                Ok(private_key.public_key(&secp).to_bytes() == self.data.as_slice())
+            }
+            KeyType::BLS12_381 => {
+                #[cfg(feature = "bls-signatures")]
+                {
+                    let private_key =
+                        match bls_signatures::PrivateKey::from_bytes(private_key_bytes, false) {
+                            Ok(secret_key) => secret_key,
+                            Err(_) => return Ok(false),
+                        };
+                    let public_key_bytes = private_key
+                        .g1_element()
+                        .expect("expected to get a public key from a bls private key")
+                        .to_bytes()
+                        .to_vec();
+                    Ok(public_key_bytes == self.data.as_slice())
+                }
+                #[cfg(not(feature = "bls-signatures"))]
+                return Err(ProtocolError::NotSupported(
+                    "Converting a private key to a bls public key is not supported without the bls-signatures feature".to_string(),
+                ));
+            }
+            KeyType::ECDSA_HASH160 => {
+                let secp = Secp256k1::new();
+                let secret_key = match SecretKey::from_slice(private_key_bytes) {
+                    Ok(secret_key) => secret_key,
+                    Err(_) => return Ok(false),
+                };
+                let private_key = dashcore::PrivateKey::new(secret_key, network);
+
+                Ok(
+                    ripemd160_sha256(private_key.public_key(&secp).to_bytes().as_slice())
+                        .as_slice()
+                        == self.data.as_slice(),
+                )
+            }
+            KeyType::EDDSA_25519_HASH160 => {
+                #[cfg(feature = "ed25519-dalek")]
+                {
+                    let secret_key = match private_key_bytes.try_into() {
+                        Ok(secret_key) => secret_key,
+                        Err(_) => return Ok(false),
+                    };
+                    let key_pair = ed25519_dalek::SigningKey::from_bytes(&secret_key);
+                    Ok(
+                        ripemd160_sha256(key_pair.verifying_key().to_bytes().as_slice()).as_slice()
+                            == self.data.as_slice(),
+                    )
+                }
+                #[cfg(not(feature = "ed25519-dalek"))]
+                return Err(ProtocolError::NotSupported(
+                    "Converting a private key to a eddsa hash 160 is not supported without the ed25519-dalek feature".to_string(),
+                ));
+            }
+            KeyType::BIP13_SCRIPT_HASH => {
+                return Err(ProtocolError::NotSupported(
+                    "Converting a private key to a script hash is not supported".to_string(),
+                ));
+            }
+        }
+    }
 }

packages/rs-platform-value/src/types/identifier.rs

@@ -11,7 +11,6 @@ use serde::{Deserialize, Serialize};
 #[cfg(feature = "json")]
 use serde_json::Value as JsonValue;
 
-use crate::string_encoding::Encoding::Base58;
 use crate::string_encoding::{Encoding, ALL_ENCODINGS};
 use crate::types::encoding_string_to_encoding;
 use crate::{string_encoding, Error, Value};

packages/rs-sdk/src/platform/types/evonode.rs

@@ -10,7 +10,7 @@ use futures::{FutureExt, TryFutureExt};
 use rs_dapi_client::transport::{
     AppliedRequestSettings, PlatformGrpcClient, TransportClient, TransportRequest,
 };
-use rs_dapi_client::{Address, ConnectionPool, DapiClientError, RequestSettings};
+use rs_dapi_client::{Address, ConnectionPool, RequestSettings};
 #[cfg(feature = "mocks")]
 use serde::{Deserialize, Serialize};
 use std::fmt::Debug;