# CryptoAgreementX963

`import { CryptoAgreementX963 } from "destack:crypto/binding";`

Key-agreement X9.63 derivation.

```ds title="CryptoAgreementX963"
export struct CryptoAgreementX963<'a> {
    algorithm: CryptoKeyAgreementAlgorithm;
    digest: CryptoDigestAlgorithm;
    sharedInfo: &'a readonly [uint8];
}
```

[language/library/src/crypto/binding/agreement.ds:39:46](https://github.com/destack-sh/destack/blob/main/language/library/src/crypto/binding/agreement.ds#L39-L46)

## Members

### `algorithm: CryptoKeyAgreementAlgorithm`

Key-agreement algorithm.

### `digest: CryptoDigestAlgorithm`

Digest algorithm.

### `sharedInfo: &'a readonly [uint8]`

Shared info bytes.