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File Name : crypto_key.js

function unusable(name, prop = 'algorithm.name') {
    return new TypeError(`CryptoKey does not support this operation, its ${prop} must be ${name}`);
}
function isAlgorithm(algorithm, name) {
    return algorithm.name === name;
}
function getHashLength(hash) {
    return parseInt(hash.name.slice(4), 10);
}
function getNamedCurve(alg) {
    switch (alg) {
        case 'ES256':
            return 'P-256';
        case 'ES384':
            return 'P-384';
        case 'ES512':
            return 'P-521';
        default:
            throw new Error('unreachable');
    }
}
function checkUsage(key, usages) {
    if (usages.length && !usages.some((expected) => key.usages.includes(expected))) {
        let msg = 'CryptoKey does not support this operation, its usages must include ';
        if (usages.length > 2) {
            const last = usages.pop();
            msg += `one of ${usages.join(', ')}, or ${last}.`;
        }
        else if (usages.length === 2) {
            msg += `one of ${usages[0]} or ${usages[1]}.`;
        }
        else {
            msg += `${usages[0]}.`;
        }
        throw new TypeError(msg);
    }
}
export function checkSigCryptoKey(key, alg, ...usages) {
    switch (alg) {
        case 'HS256':
        case 'HS384':
        case 'HS512': {
            if (!isAlgorithm(key.algorithm, 'HMAC'))
                throw unusable('HMAC');
            const expected = parseInt(alg.slice(2), 10);
            const actual = getHashLength(key.algorithm.hash);
            if (actual !== expected)
                throw unusable(`SHA-${expected}`, 'algorithm.hash');
            break;
        }
        case 'RS256':
        case 'RS384':
        case 'RS512': {
            if (!isAlgorithm(key.algorithm, 'RSASSA-PKCS1-v1_5'))
                throw unusable('RSASSA-PKCS1-v1_5');
            const expected = parseInt(alg.slice(2), 10);
            const actual = getHashLength(key.algorithm.hash);
            if (actual !== expected)
                throw unusable(`SHA-${expected}`, 'algorithm.hash');
            break;
        }
        case 'PS256':
        case 'PS384':
        case 'PS512': {
            if (!isAlgorithm(key.algorithm, 'RSA-PSS'))
                throw unusable('RSA-PSS');
            const expected = parseInt(alg.slice(2), 10);
            const actual = getHashLength(key.algorithm.hash);
            if (actual !== expected)
                throw unusable(`SHA-${expected}`, 'algorithm.hash');
            break;
        }
        case 'EdDSA': {
            if (key.algorithm.name !== 'Ed25519' && key.algorithm.name !== 'Ed448') {
                throw unusable('Ed25519 or Ed448');
            }
            break;
        }
        case 'ES256':
        case 'ES384':
        case 'ES512': {
            if (!isAlgorithm(key.algorithm, 'ECDSA'))
                throw unusable('ECDSA');
            const expected = getNamedCurve(alg);
            const actual = key.algorithm.namedCurve;
            if (actual !== expected)
                throw unusable(expected, 'algorithm.namedCurve');
            break;
        }
        default:
            throw new TypeError('CryptoKey does not support this operation');
    }
    checkUsage(key, usages);
}
export function checkEncCryptoKey(key, alg, ...usages) {
    switch (alg) {
        case 'A128GCM':
        case 'A192GCM':
        case 'A256GCM': {
            if (!isAlgorithm(key.algorithm, 'AES-GCM'))
                throw unusable('AES-GCM');
            const expected = parseInt(alg.slice(1, 4), 10);
            const actual = key.algorithm.length;
            if (actual !== expected)
                throw unusable(expected, 'algorithm.length');
            break;
        }
        case 'A128KW':
        case 'A192KW':
        case 'A256KW': {
            if (!isAlgorithm(key.algorithm, 'AES-KW'))
                throw unusable('AES-KW');
            const expected = parseInt(alg.slice(1, 4), 10);
            const actual = key.algorithm.length;
            if (actual !== expected)
                throw unusable(expected, 'algorithm.length');
            break;
        }
        case 'ECDH': {
            switch (key.algorithm.name) {
                case 'ECDH':
                case 'X25519':
                case 'X448':
                    break;
                default:
                    throw unusable('ECDH, X25519, or X448');
            }
            break;
        }
        case 'PBES2-HS256+A128KW':
        case 'PBES2-HS384+A192KW':
        case 'PBES2-HS512+A256KW':
            if (!isAlgorithm(key.algorithm, 'PBKDF2'))
                throw unusable('PBKDF2');
            break;
        case 'RSA-OAEP':
        case 'RSA-OAEP-256':
        case 'RSA-OAEP-384':
        case 'RSA-OAEP-512': {
            if (!isAlgorithm(key.algorithm, 'RSA-OAEP'))
                throw unusable('RSA-OAEP');
            const expected = parseInt(alg.slice(9), 10) || 1;
            const actual = getHashLength(key.algorithm.hash);
            if (actual !== expected)
                throw unusable(`SHA-${expected}`, 'algorithm.hash');
            break;
        }
        default:
            throw new TypeError('CryptoKey does not support this operation');
    }
    checkUsage(key, usages);
}

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Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	bienesraicess/bienesraicess	0755	2025-09-01 07:15:53
..	dir	-	bienesraicess/bienesraicess	0755	2025-09-01 07:15:53
aesgcmkw.js	file	688 B	bienesraicess/bienesraicess	0644	2025-09-01 07:15:48
buffer_utils.js	file	1.7 KB	bienesraicess/bienesraicess	0644	2025-09-01 07:15:50
cek.js	file	602 B	bienesraicess/bienesraicess	0644	2025-09-01 07:15:50
check_iv_length.js	file	276 B	bienesraicess/bienesraicess	0644	2025-09-01 07:15:50
check_key_type.js	file	1.89 KB	bienesraicess/bienesraicess	0644	2025-09-01 07:15:51
check_p2s.js	file	229 B	bienesraicess/bienesraicess	0644	2025-09-01 07:15:51
crypto_key.js	file	5.14 KB	bienesraicess/bienesraicess	0644	2025-09-01 07:15:51
decrypt_key_management.js	file	5.59 KB	bienesraicess/bienesraicess	0644	2025-09-01 07:15:51
encrypt_key_management.js	file	3.38 KB	bienesraicess/bienesraicess	0644	2025-09-01 07:15:52
epoch.js	file	60 B	bienesraicess/bienesraicess	0644	2025-09-01 07:15:52
format_pem.js	file	190 B	bienesraicess/bienesraicess	0644	2025-09-01 07:15:52
invalid_key_input.js	file	972 B	bienesraicess/bienesraicess	0644	2025-09-01 07:15:52
is_disjoint.js	file	594 B	bienesraicess/bienesraicess	0644	2025-09-01 07:15:52
is_object.js	file	510 B	bienesraicess/bienesraicess	0644	2025-09-01 07:15:52
iv.js	file	607 B	bienesraicess/bienesraicess	0644	2025-09-01 07:15:52
jwt_claims_set.js	file	4.16 KB	bienesraicess/bienesraicess	0644	2025-09-01 07:15:52
secs.js	file	1.18 KB	bienesraicess/bienesraicess	0644	2025-09-01 07:15:53
validate_algorithms.js	file	388 B	bienesraicess/bienesraicess	0644	2025-09-01 07:15:53
validate_crit.js	file	1.55 KB	bienesraicess/bienesraicess	0644	2025-09-01 07:15:53

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