Module ec/ecdh

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Expand description

Code related to ECDH

Functions

source

(algorithm: Omit<EnforcedEcdhKeyDeriveParams, "name">, baseKey: EcdhPrivCryptoKey, length: number): Promise<ArrayBuffer>

Derive a shared bits between two ECDH key pairs

example
const keyPair = await ECDH.generateKey();
const otherKeyPair = await ECDH.generateKey();
const bits = await ECDH.deriveBits(
     { public: otherKeyPair.publicKey.self },
     keyPair.privateKey.self,
     128
);
example
const keyPair = await ECDH.generateKey();
const otherKeyPair = await ECDH.generateKey();
const bits = await keyPair.privateKey.deriveBits(
     { public: otherKeyPair.publicKey.self },
     128
);
source

(algorithm: Omit<EnforcedEcdhKeyDeriveParams, "name">, baseKey: EcdhPrivCryptoKey, derivedKeyType: EnforcedHmacKeyGenParams | EnforcedAesKeyGenParams, extractable?: boolean, keyUsages?: KeyUsage[]): Promise<HmacCryptoKey | AesCryptoKeys>

Derive a shared key between two ECDH key pairs

example
const keyPair = await ECDH.generateKey();
const otherKeyPair = await ECDH.generateKey();
const hmacParams: params.EnforcedHmacKeyGenParams = {
     name: Authentication.Alg.Code.HMAC,
     hash: SHA.Alg.Variant.SHA_512,
     length: 512,
};
let key = await ECDH.deriveKey(
     { public: otherKeyPair.publicKey.self },
     keyPair.privateKey.self,
     hmacParams
);
example
const keyPair = await ECDH.generateKey();
const otherKeyPair = await ECDH.generateKey();
const hmacParams: params.EnforcedHmacKeyGenParams = {
     name: Authentication.Alg.Code.HMAC,
     hash: SHA.Alg.Variant.SHA_512,
     length: 512,
};
let key = await keyPair.privateKey.deriveKey(
     { public: otherKeyPair.publicKey.self },
     hmacParams
);
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(format: KeyFormat, key: EcdhPubCryptoKey | EcdhPrivCryptoKey): Promise<ArrayBuffer | JsonWebKey>

Export an ECDH public or private key

example
const pubKeyJwk = await ECDH.exportKey("jwk", keyPair.publicKey.self);
example
const privKeyJwk = await ECDH.exportKey("jwk", keyPair.privateKey.self);
example
const pubKeyJwk = await keyPair.publicKey.exportKey("jwk");
example
const privKeyJwk = await keyPair.privateKey.exportKey("jwk");
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(algorithm?: Omit<EnforcedEcKeyGenParams, "name">, extractable?: boolean, keyUsages?: KeyUsage[]): Promise<EcdhProxiedCryptoKeyPair>

Generate a new ECDH keypair

example
const keyPair = await ECDH.generateKey();
example
const keyPair = await ECDH.generateKey({ namedCurve: "P-256" }, false);
example
const keyPair = await ECDH.generateKey({ namedCurve: "P-256" }, true, ['deriveKey', 'deriveBits']);
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(algorithm?: Omit<EnforcedEcKeyGenParams, "name">, extractable?: boolean, keyUsages?: KeyUsage[]): Promise<EcdhProxiedCryptoKeyPair>

Generate a new ECDH keypair

alias

generateKey

example
const keyPair = await ECDH.generateKeyPair();
example
const keyPair = await ECDH.generateKeyPair({ namedCurve: "P-256" }, false);
example
const keyPair = await ECDH.generateKeyPair({ namedCurve: "P-256" }, true, ['deriveKey', 'deriveBits']);
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(format: KeyFormat, key: BufferSource | JsonWebKey, algorithm?: Omit<EnforcedEcKeyImportParams, "name">, extractable?: boolean, keyUsages?: KeyUsage[]): Promise<EcdhProxiedPubCryptoKey | EcdhProxiedPrivCryptoKey>

Import an ECDH public or private key

example
const pubKey = await ECDH.importKey("jwk", pubKeyJwk, { namedCurve: "P-521" }, true, []);
example
const privKey = await ECDH.importKey("jwk", privKeyJwk, { namedCurve: "P-521" }, true, ['deriveBits', 'deriveKey']);