Module ec/ecdsa

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Code related to ECDSA

Functions

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(format: KeyFormat, key: EcdsaPubCryptoKey | EcdsaPrivCryptoKey): Promise<ArrayBuffer | JsonWebKey>

Export an ECDSA public or private key

example
const pubKeyJwk = await ECDSA.exportKey("jwk", keyPair.publicKey.self);
example
const privKeyJwk = await ECDSA.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<EcdsaProxiedCryptoKeyPair>

Generate a new ECDSA keypair

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

Generate a new ECDSA keypair

alias

generateKey

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

Import an ECDSA public or private key

example
const pubKey = await ECDSA.importKey("jwk", pubKeyJwk, { namedCurve: "P-521" }, true, ['verify']);
example
const privKey = await ECDSA.importKey("jwk", privKeyJwk, { namedCurve: "P-521" }, true, ['sign']);
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(algorithm: Omit<EnforcedEcdsaParams, "name">, key: EcdsaPrivCryptoKey, data: BufferSource): Promise<ArrayBuffer>

Sign a given payload

example
const message = new TextEncoder().encode("a message");
const signature = await ECDSA.sign({hash: "SHA-512"}, keyPair.privateKey.self, message);
example
const message = new TextEncoder().encode("a message");
const signature = await keyPair.privateKey.sign({hash: "SHA-512"}, message);
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(algorithm: Omit<EnforcedEcdsaParams, "name">, key: EcdsaPubCryptoKey, signature: BufferSource, data: BufferSource): Promise<boolean>

Verify a given signature

example
const message = new TextEncoder().encode("a message");
const isVerified = await ECDSA.verify({hash: "SHA-512"}, keyPair.publicKey.self, signature, message);
example
const message = new TextEncoder().encode("a message");
const isVerified = await keyPair.publicKey.verify({hash: "SHA-512"}, signature, message);