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# SecureEnclave.P256

An elliptic curve that enables NIST P-256 signatures and key agreement
within the Secure Enclave.

```
enum P256
```

## Topics

### Performing operations

[`SecureEnclave.P256.KeyAgreement`](/documentation/CryptoKit/SecureEnclave/P256/KeyAgreement)

A mechanism used to create a shared secret between two users by
performing NIST P-256 elliptic curve Diffie Hellman (ECDH) key
exchange within the Secure Enclave.

[`SecureEnclave.P256.Signing`](/documentation/CryptoKit/SecureEnclave/P256/Signing)

A mechanism used to create or verify a cryptographic signature
using the NIST P-256 elliptic curve digital signature algorithm
(ECDSA) within the Secure Enclave.


---

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