export interface ECNamedCurve {
/**
* The curve ASN . 1 object identifier
*/
id: string;
/**
* The name of the curve
*/
name: string;
/**
* The coordinate length in bytes
*/
size: number;
}
export class ECNamedCurves {
public static readonly namedCurves: Record<string, ECNamedCurve> = {};
/**
* Registers an ECC named curve
* @ param name The name o the curve
* @ param id The curve ASN . 1 object identifier
* @ param size The coordinate length in bytes
*/
public static register(name: string, id: string, size: number): void {
this .namedCurves[name.toLowerCase()] = this .namedCurves[id] = { name, id, size };
}
/**
* Returns an ECC named curve object
* @ param nameOrId Name or identifier of the named curve
* @ returns
*/
static find(nameOrId: string): ECNamedCurve | null {
return this .namedCurves[nameOrId.toLowerCase()] || null ;
}
static {
// Register default curves
// NIST
this .register("P-256" , "1.2.840.10045.3.1.7" , 32 );
this .register("P-384" , "1.3.132.0.34" , 48 );
this .register("P-521" , "1.3.132.0.35" , 66 );
// Brainpool
this .register("brainpoolP256r1" , "1.3.36.3.3.2.8.1.1.7" , 32 );
this .register("brainpoolP384r1" , "1.3.36.3.3.2.8.1.1.11" , 48 );
this .register("brainpoolP512r1" , "1.3.36.3.3.2.8.1.1.13" , 64 );
}
}
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