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64 lines
2.0 KiB
64 lines
2.0 KiB
2 years ago
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import DES from "../browserify-des";
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import * as aes from "../browserify-aes";
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import aesModes from "../browserify-aes/modes";
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import desModes from "../browserify-des/modes.json";
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import ebtk from "../evp_bytestokey";
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function createCipher(suite, password) {
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suite = suite.toLowerCase();
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var keyLen, ivLen;
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if (aesModes[suite]) {
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keyLen = aesModes[suite].key;
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ivLen = aesModes[suite].iv;
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}
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else if (desModes[suite]) {
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keyLen = desModes[suite].key * 8;
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ivLen = desModes[suite].iv;
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}
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else {
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throw new TypeError('invalid suite type');
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}
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var keys = ebtk(password, false, keyLen, ivLen);
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return createCipheriv(suite, keys.key, keys.iv);
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}
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function createDecipher(suite, password) {
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suite = suite.toLowerCase();
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var keyLen, ivLen;
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if (aesModes[suite]) {
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keyLen = aesModes[suite].key;
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ivLen = aesModes[suite].iv;
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}
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else if (desModes[suite]) {
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keyLen = desModes[suite].key * 8;
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ivLen = desModes[suite].iv;
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}
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else {
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throw new TypeError('invalid suite type');
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}
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var keys = ebtk(password, false, keyLen, ivLen);
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return createDecipheriv(suite, keys.key, keys.iv);
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}
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function createCipheriv(suite, key, iv) {
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suite = suite.toLowerCase();
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if (aesModes[suite])
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return aes.createCipheriv(suite, key, iv);
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if (desModes[suite])
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return new DES({ key: key, iv: iv, mode: suite });
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throw new TypeError('invalid suite type');
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}
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function createDecipheriv(suite, key, iv) {
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suite = suite.toLowerCase();
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if (aesModes[suite])
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return aes.createDecipheriv(suite, key, iv);
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if (desModes[suite])
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return new DES({ key: key, iv: iv, mode: suite, decrypt: true });
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throw new TypeError('invalid suite type');
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}
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function getCiphers() {
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return Object.keys(desModes).concat(aes.getCiphers());
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}
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export { createCipher as Cipher };
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export { createCipheriv as Cipheriv };
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export { createDecipher as Decipher };
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export { createDecipheriv as Decipheriv };
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export { getCiphers };
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