import * as asn1js from "asn1js" ;
import * as pvtsutils from "pvtsutils" ;
import * as pvutils from "pvutils" ;
import { EMPTY_STRING } from "./constants" ;
import { AsnError, ParameterError } from "./errors" ;
import { PkiObject, PkiObjectParameters } from "./PkiObject" ;
import * as Schema from "./Schema" ;
export interface IRSAPublicKey {
/**
* Modulus part of RSA public key
*/
modulus: asn1js.Integer;
/**
* Public exponent of RSA public key
*/
publicExponent: asn1js.Integer;
}
export interface RSAPublicKeyJson {
n: string;
e: string;
}
export type RSAPublicKeyParameters = PkiObjectParameters & Partial<IRSAPublicKey> & { json?: RSAPublicKeyJson; };
const MODULUS = "modulus" ;
const PUBLIC_EXPONENT = "publicExponent" ;
const CLEAR_PROPS = [MODULUS, PUBLIC_EXPONENT];
/**
* Represents the RSAPublicKey structure described in [ RFC3447 ] ( https : //datatracker.ietf.org/doc/html/rfc3447)
*/
export class RSAPublicKey extends PkiObject implements IRSAPublicKey {
public static override CLASS_NAME = "RSAPublicKey" ;
public modulus!: asn1js.Integer;
public publicExponent!: asn1js.Integer;
/**
* Initializes a new instance of the { @ link RSAPublicKey } class
* @ param parameters Initialization parameters
*/
constructor(parameters: RSAPublicKeyParameters = {}) {
super ();
this .modulus = pvutils.getParametersValue(parameters, MODULUS, RSAPublicKey.defaultValues(MODULUS));
this .publicExponent = pvutils.getParametersValue(parameters, PUBLIC_EXPONENT, RSAPublicKey.defaultValues(PUBLIC_EXPONENT));
if (parameters.json) {
this .fromJSON(parameters.json);
}
if (parameters.schema) {
this .fromSchema(parameters.schema);
}
}
/**
* Returns default values for all class members
* @ param memberName String name for a class member
* @ returns Default value
*/
public static override defaultValues(memberName: typeof MODULUS | typeof PUBLIC_EXPONENT): asn1js.Integer;
public static override defaultValues(memberName: string): any {
switch (memberName) {
case MODULUS:
return new asn1js.Integer();
case PUBLIC_EXPONENT:
return new asn1js.Integer();
default :
return super .defaultValues(memberName);
}
}
/**
* @ inheritdoc
* @ asn ASN . 1 schema
* ` ` ` asn
* RSAPublicKey : : = Sequence {
* modulus Integer , - - n
* publicExponent Integer - - e
* }
* ` ` `
*/
public static override schema(parameters: Schema.SchemaParameters<{ modulus?: string; publicExponent?: string; }> = {}): Schema.SchemaType {
const names = pvutils.getParametersValue<NonNullable<typeof parameters.names>>(parameters, "names" , {});
return (new asn1js.Sequence({
name: (names.blockName || EMPTY_STRING),
value: [
new asn1js.Integer({ name: (names.modulus || EMPTY_STRING) }),
new asn1js.Integer({ name: (names.publicExponent || EMPTY_STRING) })
]
}));
}
public fromSchema(schema: asn1js.AsnType): void {
// Clear input data first
pvutils.clearProps(schema, CLEAR_PROPS);
// Check the schema is valid
const asn1 = asn1js.compareSchema(schema,
schema,
RSAPublicKey.schema({
names: {
modulus: MODULUS,
publicExponent: PUBLIC_EXPONENT
}
})
);
AsnError.assertSchema(asn1, this .className);
// Get internal properties from parsed schema
this .modulus = asn1.result.modulus.convertFromDER(256 );
this .publicExponent = asn1.result.publicExponent;
}
public toSchema(): asn1js.Sequence {
return (new asn1js.Sequence({
value: [
this .modulus.convertToDER(),
this .publicExponent
]
}));
}
public toJSON(): RSAPublicKeyJson {
return {
n: pvtsutils.Convert.ToBase64Url(this .modulus.valueBlock.valueHexView),
e: pvtsutils.Convert.ToBase64Url(this .publicExponent.valueBlock.valueHexView),
};
}
/**
* Converts JSON value into current object
* @ param json JSON object
* /
fromJSON ( json : RSAPublicKeyJson ) : void {
ParameterError . assert ( " json " , json , " n " , " e " ) ;
const array = pvutils . stringToArrayBuffer ( pvutils . fromBase64 ( json . n , true ) ) ;
this . modulus = new asn1js . Integer ( { valueHex : array . slice ( 0 , Math . pow ( 2 , pvutils . nearestPowerOf2 ( array . byteLength ) ) ) } ) ;
= new asn1js . ( : . stringToArrayBuffer ( vutils . j son . , true ) 0 ) } java.lang.StringIndexOutOfBoundsException: Index 134 out of bounds for length 134
type RSAPublicKeyParameters = PkiObjectParameters & Partial < IRSAPublicKey > & { json ? : RSAPublicKeyJson ; } ;
}
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