> For the complete documentation index, see [llms.txt](https://docs.encedo.com/hem-api/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.encedo.com/hem-api/reference/api-reference/cryptography-operations.md).

# Cryptography operations

- [HMAC](https://docs.encedo.com/hem-api/reference/api-reference/cryptography-operations/hmac.md): Those basic cryptography operations allow the calculation and verify HMAC messages.
- [ExDSA](https://docs.encedo.com/hem-api/reference/api-reference/cryptography-operations/exdsa.md): Those basic cryptography operations allow the calculation and verify ExDSA signatures. ECDSA and EdDSA are supported.
- [ECDH](https://docs.encedo.com/hem-api/reference/api-reference/cryptography-operations/ecdh.md): This basic cryptography operation allows the calculation of the ECDH between a trusted key or by an external public key.
- [Encryption](https://docs.encedo.com/hem-api/reference/api-reference/cryptography-operations/encryption.md)
- [Encryption/Decryption](https://docs.encedo.com/hem-api/reference/api-reference/cryptography-operations/encryption/encryption-decryption.md): These two endpoint implements the encryption and decryption of short data message using the AES scheme.
- [Wrap/Unwrap](https://docs.encedo.com/hem-api/reference/api-reference/cryptography-operations/encryption/wrap-unwrap.md): These two endpoint implements the NIST Key Wrapping scheme.
- [Post-Quantum Cryptography](https://docs.encedo.com/hem-api/reference/api-reference/cryptography-operations/post-quantum-cryptography.md): This section contains modern Post-Quantum Cryptography algorithms recently approved by the NIST.
- [ML-DSA](https://docs.encedo.com/hem-api/reference/api-reference/cryptography-operations/post-quantum-cryptography/ml-dsa.md): These two basic cryptography operations allow the calculation and verification of the ML-DSA signatures.
- [ML-KEM](https://docs.encedo.com/hem-api/reference/api-reference/cryptography-operations/post-quantum-cryptography/ml-kem.md): This section describes two endpoints functional for key-encapsulation PQC operations - ML-KEM, FIPS 203 compliant.