diff --git a/crypto/src/public_key.rs b/crypto/src/public_key.rs
new file mode 100644
index 0000000000..3e7d90268f
--- /dev/null
+++ b/crypto/src/public_key.rs
@@ -0,0 +1,309 @@
+// SPDX-FileCopyrightText: 2023 Marigold <contact@marigold.dev>
+//
+// SPDX-License-Identifier: MIT
+
+//! Public Key of Layer1.
+
+use std::fmt::Display;
+use tezos_crypto_rs::hash::{
+    PublicKeyEd25519, PublicKeyP256, PublicKeySecp256k1, Signature,
+};
+use tezos_crypto_rs::{CryptoError, PublicKeySignatureVerifier};
+use tezos_data_encoding::enc::BinWriter;
+use tezos_data_encoding::encoding::HasEncoding;
+use tezos_data_encoding::nom::NomReader;
+
+use crypto::base58::{FromBase58Check, FromBase58CheckError};
+use crypto::hash::{Hash, HashTrait, HashType};
+
+/// Public Key of Layer1.
+#[derive(Debug, Clone, PartialEq, Eq, HasEncoding, BinWriter, NomReader)]
+pub enum PublicKey {
+    /// Tz1 - public key
+    Ed25519(PublicKeyEd25519),
+    /// Tz2 - public key
+    Secp256k1(PublicKeySecp256k1),
+    /// Tz3 - public key
+    P256(PublicKeyP256),
+}
+
+impl Display for PublicKey {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Self::Ed25519(tz1) => write!(f, "{}", tz1),
+            Self::Secp256k1(tz2) => write!(f, "{}", tz2),
+            Self::P256(tz3) => write!(f, "{}", tz3),
+        }
+    }
+}
+
+impl PublicKey {
+    /// Conversion from base58-encoding string (with prefix).
+    pub fn from_b58check(data: &str) -> Result<Self, FromBase58CheckError> {
+        let bytes = data.from_base58check()?;
+        let public_key = if bytes
+            .starts_with(HashType::PublicKeyEd25519.base58check_prefix())
+        {
+            PublicKey::Ed25519(PublicKeyEd25519::from_b58check(data)?)
+        } else if bytes.starts_with(HashType::PublicKeySecp256k1.base58check_prefix()) {
+            PublicKey::Secp256k1(PublicKeySecp256k1::from_b58check(data)?)
+        } else if bytes.starts_with(HashType::PublicKeyP256.base58check_prefix()) {
+            PublicKey::P256(PublicKeyP256::from_b58check(data)?)
+        } else {
+            return Err(FromBase58CheckError::InvalidBase58);
+        };
+        Ok(public_key)
+    }
+
+    /// Conversion to base58-encoding string (with prefix).
+    pub fn to_b58check(&self) -> String {
+        match self {
+            Self::Ed25519(tz1) => tz1.to_b58check(),
+            Self::Secp256k1(tz2) => tz2.to_b58check(),
+            Self::P256(tz3) => tz3.to_b58check(),
+        }
+    }
+}
+
+impl From<PublicKey> for Hash {
+    fn from(pkh: PublicKey) -> Self {
+        match pkh {
+            PublicKey::Ed25519(tz1) => tz1.into(),
+            PublicKey::Secp256k1(tz2) => tz2.into(),
+            PublicKey::P256(tz3) => tz3.into(),
+        }
+    }
+}
+
+impl TryFrom<&str> for PublicKey {
+    type Error = FromBase58CheckError;
+
+    fn try_from(value: &str) -> Result<Self, Self::Error> {
+        Self::from_b58check(value)
+    }
+}
+
+impl PublicKeySignatureVerifier for PublicKey {
+    type Signature = Signature;
+    type Error = CryptoError;
+
+    fn verify_signature(
+        &self,
+        signature: &Self::Signature,
+        msg: &[u8],
+    ) -> Result<bool, Self::Error> {
+        match self {
+            PublicKey::Ed25519(ed25519) => ed25519.verify_signature(signature, msg),
+            PublicKey::Secp256k1(secp256k1) => secp256k1.verify_signature(signature, msg),
+            PublicKey::P256(p256) => p256.verify_signature(signature, msg),
+        }
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn tz1_b58check() {
+        let tz1 = "edpkuDMUm7Y53wp4gxeLBXuiAhXZrLn8XB1R83ksvvesH8Lp8bmCfK";
+
+        let pkh = PublicKey::from_b58check(tz1);
+
+        assert!(matches!(pkh, Ok(PublicKey::Ed25519(_))));
+
+        let tz1_from_pkh = pkh.unwrap().to_b58check();
+
+        assert_eq!(tz1, &tz1_from_pkh);
+    }
+
+    #[test]
+    fn tz2_b58check() {
+        let tz2 = "sppk7Zik17H7AxECMggqD1FyXUQdrGRFtz9X7aR8W2BhaJoWwSnPEGA";
+
+        let public_key = PublicKey::from_b58check(tz2);
+
+        assert!(matches!(public_key, Ok(PublicKey::Secp256k1(_))));
+
+        let tz2_from_pk = public_key.unwrap().to_b58check();
+
+        assert_eq!(tz2, &tz2_from_pk);
+    }
+
+    #[test]
+    fn tz3_b58check() {
+        let tz3 = "p2pk67VpBjWwoPULwXCpayec6rFxaAKv8VjJ8cVMHmLDCYARu31zx5Z";
+
+        let public_key = PublicKey::from_b58check(tz3);
+
+        assert!(matches!(public_key, Ok(PublicKey::P256(_))));
+
+        let tz3_from_pk = public_key.unwrap().to_b58check();
+
+        assert_eq!(tz3, &tz3_from_pk);
+    }
+
+    #[test]
+    fn tz1_encoding() {
+        let tz1 = "edpkuDMUm7Y53wp4gxeLBXuiAhXZrLn8XB1R83ksvvesH8Lp8bmCfK";
+
+        let public_key = PublicKey::from_b58check(tz1).expect("expected valid tz1 hash");
+
+        let mut bin = Vec::new();
+        public_key
+            .bin_write(&mut bin)
+            .expect("serialization should work");
+
+        let deserde_pk = NomReader::nom_read(bin.as_slice())
+            .expect("deserialization should work")
+            .1;
+
+        // Check tag encoding
+        assert_eq!(0_u8, bin[0]);
+        assert_eq!(public_key, deserde_pk);
+    }
+
+    #[test]
+    fn tz2_encoding() {
+        let tz2 = "sppk7Zik17H7AxECMggqD1FyXUQdrGRFtz9X7aR8W2BhaJoWwSnPEGA";
+
+        let public_key = PublicKey::from_b58check(tz2).expect("expected valid tz2 hash");
+
+        let mut bin = Vec::new();
+        public_key
+            .bin_write(&mut bin)
+            .expect("serialization should work");
+
+        let deserde_pk = NomReader::nom_read(bin.as_slice())
+            .expect("deserialization should work")
+            .1;
+
+        // Check tag encoding
+        assert_eq!(1_u8, bin[0]);
+        assert_eq!(public_key, deserde_pk);
+    }
+
+    #[test]
+    fn tz3_encoding() {
+        let tz3 = "p2pk67VpBjWwoPULwXCpayec6rFxaAKv8VjJ8cVMHmLDCYARu31zx5Z";
+
+        let public_key = PublicKey::from_b58check(tz3).expect("expected valid tz3 hash");
+
+        let mut bin = Vec::new();
+        public_key
+            .bin_write(&mut bin)
+            .expect("serialization should work");
+
+        let deserde_pk = NomReader::nom_read(bin.as_slice())
+            .expect("deserialization should work")
+            .1;
+
+        // Check tag encoding
+        assert_eq!(2_u8, bin[0]);
+        assert_eq!(public_key, deserde_pk);
+    }
+
+    #[test]
+    fn tz1_signature_signature_verification_succeeds() {
+        let tz1 = PublicKey::from_b58check(
+            "edpkvWR5truf7AMF3PZVCXx7ieQLCW4MpNDzM3VwPfmFWVbBZwswBw",
+        )
+        .expect("public key decoding should work");
+        let sig: Signature = Signature::from_base58_check(
+            "sigdGBG68q2vskMuac4AzyNb1xCJTfuU8MiMbQtmZLUCYydYrtTd5Lessn1EFLTDJzjXoYxRasZxXbx6tHnirbEJtikcMHt3"
+        ).expect("signature decoding should work");
+        let msg = hex::decode(
+            "bcbb7b77cb0712e4cd02160308cfd53e8dde8a7980c4ff28b62deb12304913c2",
+        )
+        .expect("payload decoding should work");
+
+        let result = tz1
+            .verify_signature(&sig, &msg)
+            .expect("signature should be correct");
+        assert!(result);
+    }
+
+    #[test]
+    fn tz1_signature_signature_verification_fails() {
+        let tz1 = PublicKey::from_b58check(
+            "edpkuDMUm7Y53wp4gxeLBXuiAhXZrLn8XB1R83ksvvesH8Lp8bmCfK",
+        )
+        .expect("public key decoding should work");
+        let sig = Signature::from_base58_check(
+            "sigdGBG68q2vskMuac4AzyNb1xCJTfuU8MiMbQtmZLUCYydYrtTd5Lessn1EFLTDJzjXoYxRasZxXbx6tHnirbEJtikcMHt3"
+        ).expect("signature decoding should work");
+        let msg = hex::decode(
+            "bcbb7b77cb0712e4cd02160308cfd53e8dde8a7980c4ff28b62deb12304913c2",
+        )
+        .expect("payload decoding should work");
+
+        let result = tz1.verify_signature(&sig, &msg);
+        assert!(result.is_err());
+    }
+
+    #[test]
+    fn tz2_signature_signature_verification_succeeds() {
+        let tz2 = PublicKey::from_b58check(
+            "sppk7cwkTzCPptCSxSTvGNg4uqVcuTbyWooLnJp4yxJNH5DReUGxYvs",
+        )
+        .expect("public key decoding should work");
+        let sig = Signature::from_base58_check("sigrJ2jqanLupARzKGvzWgL1Lv6NGUqDovHKQg9MX4PtNtHXgcvG6131MRVzujJEXfvgbuRtfdGbXTFaYJJjuUVLNNZTf5q1").expect("signature decoding should work");
+        let msg = hex::decode(
+            "5538e2cc90c9b053a12e2d2f3a985aff1809eac59501db4d644e4bb381b06b4b",
+        )
+        .expect("payload decoding should work");
+
+        let result = tz2.verify_signature(&sig, &msg).unwrap();
+        assert!(result);
+    }
+
+    #[test]
+    fn tz2_signature_signature_verification_fails() {
+        let tz2 = "sppk7Zik17H7AxECMggqD1FyXUQdrGRFtz9X7aR8W2BhaJoWwSnPEGA";
+        let tz2 = PublicKey::from_b58check(tz2).expect("parsing should world");
+        let sig = Signature::from_base58_check("sigrJ2jqanLupARzKGvzWgL1Lv6NGUqDovHKQg9MX4PtNtHXgcvG6131MRVzujJEXfvgbuRtfdGbXTFaYJJjuUVLNNZTf5q1").expect("signature decoding should work");
+        let msg = hex::decode(
+            "5538e2cc90c9b053a12e2d2f3a985aff1809eac59501db4d644e4bb381b06b4b",
+        )
+        .expect("payload decoding should work");
+
+        let result = tz2.verify_signature(&sig, &msg).unwrap();
+        assert!(!result);
+    }
+
+    #[test]
+    fn tz3_signature_signature_verification_succeeds() {
+        let tz3 = PublicKey::from_b58check(
+            "p2pk67Cwb5Ke6oSmqeUbJxURXMe3coVnH9tqPiB2xD84CYhHbBKs4oM",
+        )
+        .expect("decoding public key should work");
+        let sig = Signature::from_base58_check(
+            "sigNCaj9CnmD94eZH9C7aPPqBbVCJF72fYmCFAXqEbWfqE633WNFWYQJFnDUFgRUQXR8fQ5tKSfJeTe6UAi75eTzzQf7AEc1"
+        ).expect("signature decoding should work");
+        let msg = hex::decode(
+            "5538e2cc90c9b053a12e2d2f3a985aff1809eac59501db4d644e4bb381b06b4b",
+        )
+        .expect("payload decoding should work");
+
+        let result = tz3.verify_signature(&sig, &msg).unwrap();
+        assert!(result);
+    }
+
+    #[test]
+    fn tz3_signature_signature_verification_fails() {
+        let tz3 = PublicKey::from_b58check(
+            "p2pk67VpBjWwoPULwXCpayec6rFxaAKv8VjJ8cVMHmLDCYARu31zx5Z",
+        )
+        .expect("decoding public key should work");
+        let sig = Signature::from_base58_check(
+            "sigNCaj9CnmD94eZH9C7aPPqBbVCJF72fYmCFAXqEbWfqE633WNFWYQJFnDUFgRUQXR8fQ5tKSfJeTe6UAi75eTzzQf7AEc1"
+        ).expect("signature decoding should work");
+        let msg = hex::decode(
+            "5538e2cc90c9b053a12e2d2f3a985aff1809eac59501db4d644e4bb381b06b4b",
+        )
+        .expect("payload decoding should work");
+
+        let result = tz3.verify_signature(&sig, &msg).unwrap();
+        assert!(!result);
+    }
+}
diff --git a/crypto/src/public_key_hash.rs b/crypto/src/public_key_hash.rs
new file mode 100644
index 0000000000..d7ab951cbd
--- /dev/null
+++ b/crypto/src/public_key_hash.rs
@@ -0,0 +1,182 @@
+// SPDX-FileCopyrightText: 2022-2023 TriliTech <contact@trili.tech>
+//
+// SPDX-License-Identifier: MIT
+
+//! Hash of Layer1 contract ids.
+
+use std::fmt::Display;
+use tezos_data_encoding::enc::BinWriter;
+use tezos_data_encoding::encoding::HasEncoding;
+use tezos_data_encoding::nom::NomReader;
+
+use crypto::base58::{FromBase58Check, FromBase58CheckError};
+use crypto::hash::{
+    ContractTz1Hash, ContractTz2Hash, ContractTz3Hash, Hash, HashTrait, HashType,
+};
+
+/// Hash of Layer1 contract ids.
+#[derive(
+    Debug, Clone, PartialEq, Eq, PartialOrd, Ord, HasEncoding, BinWriter, NomReader,
+)]
+pub enum PublicKeyHash {
+    /// Tz1-contract
+    Ed25519(ContractTz1Hash),
+    /// Tz2-contract
+    Secp256k1(ContractTz2Hash),
+    /// Tz3-contract
+    P256(ContractTz3Hash),
+}
+
+impl Display for PublicKeyHash {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            Self::Ed25519(tz1) => write!(f, "{}", tz1),
+            Self::Secp256k1(tz2) => write!(f, "{}", tz2),
+            Self::P256(tz3) => write!(f, "{}", tz3),
+        }
+    }
+}
+
+impl PublicKeyHash {
+    /// Conversion from base58-encoding string (with prefix).
+    pub fn from_b58check(data: &str) -> Result<Self, FromBase58CheckError> {
+        let bytes = data.from_base58check()?;
+        match bytes {
+            _ if bytes.starts_with(HashType::ContractTz1Hash.base58check_prefix()) => Ok(
+                PublicKeyHash::Ed25519(ContractTz1Hash::from_b58check(data)?),
+            ),
+            _ if bytes.starts_with(HashType::ContractTz2Hash.base58check_prefix()) => Ok(
+                PublicKeyHash::Secp256k1(ContractTz2Hash::from_b58check(data)?),
+            ),
+            _ if bytes.starts_with(HashType::ContractTz3Hash.base58check_prefix()) => {
+                Ok(PublicKeyHash::P256(ContractTz3Hash::from_b58check(data)?))
+            }
+            _ => Err(FromBase58CheckError::InvalidBase58),
+        }
+    }
+
+    /// Conversion to base58-encoding string (with prefix).
+    pub fn to_b58check(&self) -> String {
+        match self {
+            Self::Ed25519(tz1) => tz1.to_b58check(),
+            Self::Secp256k1(tz2) => tz2.to_b58check(),
+            Self::P256(tz3) => tz3.to_b58check(),
+        }
+    }
+}
+
+impl From<PublicKeyHash> for Hash {
+    fn from(pkh: PublicKeyHash) -> Self {
+        match pkh {
+            PublicKeyHash::Ed25519(tz1) => tz1.into(),
+            PublicKeyHash::Secp256k1(tz2) => tz2.into(),
+            PublicKeyHash::P256(tz3) => tz3.into(),
+        }
+    }
+}
+
+impl TryFrom<&str> for PublicKeyHash {
+    type Error = FromBase58CheckError;
+
+    fn try_from(value: &str) -> Result<Self, Self::Error> {
+        Self::from_b58check(value)
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn tz1_b58check() {
+        let tz1 = "tz1RjtZUVeLhADFHDL8UwDZA6vjWWhojpu5w";
+
+        let pkh = PublicKeyHash::from_b58check(tz1);
+
+        assert!(matches!(pkh, Ok(PublicKeyHash::Ed25519(_))));
+
+        let tz1_from_pkh = pkh.unwrap().to_b58check();
+
+        assert_eq!(tz1, &tz1_from_pkh);
+    }
+
+    #[test]
+    fn tz2_b58check() {
+        let tz2 = "tz2VGBaXuS6rnaa5hpC92qkgadRJKdEbeGwc";
+
+        let pkh = PublicKeyHash::from_b58check(tz2);
+
+        assert!(matches!(pkh, Ok(PublicKeyHash::Secp256k1(_))));
+
+        let tz2_from_pkh = pkh.unwrap().to_b58check();
+
+        assert_eq!(tz2, &tz2_from_pkh);
+    }
+
+    #[test]
+    fn tz3_b58check() {
+        let tz3 = "tz3WEJYwJ6pPwVbSL8FrSoAXRmFHHZTuEnMA";
+
+        let pkh = PublicKeyHash::from_b58check(tz3);
+
+        assert!(matches!(pkh, Ok(PublicKeyHash::P256(_))));
+
+        let tz3_from_pkh = pkh.unwrap().to_b58check();
+
+        assert_eq!(tz3, &tz3_from_pkh);
+    }
+
+    #[test]
+    fn tz1_encoding() {
+        let tz1 = "tz1KqTpEZ7Yob7QbPE4Hy4Wo8fHG8LhKxZSx";
+
+        let pkh = PublicKeyHash::from_b58check(tz1).expect("expected valid tz1 hash");
+
+        let mut bin = Vec::new();
+        pkh.bin_write(&mut bin).expect("serialization should work");
+
+        let deserde_pkh = NomReader::nom_read(bin.as_slice())
+            .expect("deserialization should work")
+            .1;
+
+        // Check tag encoding
+        assert_eq!(0_u8, bin[0]);
+        assert_eq!(pkh, deserde_pkh);
+    }
+
+    #[test]
+    fn tz2_encoding() {
+        let tz2 = "tz2KZPgf2rshxNUBXFcTaCemik1LH1v9qz3F";
+
+        let pkh = PublicKeyHash::from_b58check(tz2).expect("expected valid tz2 hash");
+
+        let mut bin = Vec::new();
+        pkh.bin_write(&mut bin).expect("serialization should work");
+
+        let deserde_pkh = NomReader::nom_read(bin.as_slice())
+            .expect("deserialization should work")
+            .1;
+
+        // Check tag encoding
+        assert_eq!(1_u8, bin[0]);
+        assert_eq!(pkh, deserde_pkh);
+    }
+
+    #[test]
+    fn tz3_encoding() {
+        let tz3 = "tz3fTJbAxj1LQCEKDKmYLWKP6e5vNC9vwvyo";
+
+        let pkh = PublicKeyHash::from_b58check(tz3).expect("expected valid tz3 hash");
+
+        let mut bin = Vec::new();
+        pkh.bin_write(&mut bin).expect("serialization should work");
+
+        let deserde_pkh = NomReader::nom_read(bin.as_slice())
+            .expect("deserialization should work")
+            .1;
+
+        // Check tag encoding
+        assert_eq!(2_u8, bin[0]);
+        assert_eq!(pkh, deserde_pkh);
+    }
+}