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55 lines
2.5 KiB
JavaScript
55 lines
2.5 KiB
JavaScript
describe('encrypting and decrypting profile data', function() {
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var NAME_PADDED_LENGTH = 26;
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describe('encrypting and decrypting profile names', function() {
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it('pads, encrypts, decrypts, and unpads a short string', function() {
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var name = 'Alice';
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var buffer = dcodeIO.ByteBuffer.wrap(name).toArrayBuffer();
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var key = libsignal.crypto.getRandomBytes(32);
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return textsecure.crypto.encryptProfileName(buffer, key).then(function(encrypted) {
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assert(encrypted.byteLength === NAME_PADDED_LENGTH + 16 + 12);
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return textsecure.crypto.decryptProfileName(encrypted, key).then(function(decrypted) {
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assert.strictEqual(dcodeIO.ByteBuffer.wrap(decrypted).toString('utf8'), 'Alice');
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});
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});
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});
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it('works for empty string', function() {
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var name = dcodeIO.ByteBuffer.wrap('').toArrayBuffer();
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var key = libsignal.crypto.getRandomBytes(32);
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return textsecure.crypto.encryptProfileName(name.buffer, key).then(function(encrypted) {
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assert(encrypted.byteLength === NAME_PADDED_LENGTH + 16 + 12);
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return textsecure.crypto.decryptProfileName(encrypted, key).then(function(decrypted) {
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assert.strictEqual(decrypted.byteLength, 0);
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assert.strictEqual(dcodeIO.ByteBuffer.wrap(decrypted).toString('utf8'), '');
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});
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});
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});
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});
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describe('encrypting and decrypting profile avatars', function() {
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it('encrypts and decrypts', function() {
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var buffer = dcodeIO.ByteBuffer.wrap('This is an avatar').toArrayBuffer();
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var key = libsignal.crypto.getRandomBytes(32);
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return textsecure.crypto.encryptProfile(buffer, key).then(function(encrypted) {
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assert(encrypted.byteLength === buffer.byteLength + 16 + 12);
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return textsecure.crypto.decryptProfile(encrypted, key).then(function(decrypted) {
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assertEqualArrayBuffers(buffer, decrypted)
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});
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});
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});
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it('throws when decrypting with the wrong key', function() {
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var buffer = dcodeIO.ByteBuffer.wrap('This is an avatar').toArrayBuffer();
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var key = libsignal.crypto.getRandomBytes(32);
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var bad_key = libsignal.crypto.getRandomBytes(32);
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return textsecure.crypto.encryptProfile(buffer, key).then(function(encrypted) {
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assert(encrypted.byteLength === buffer.byteLength + 16 + 12);
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return textsecure.crypto.decryptProfile(encrypted, bad_key).catch(function(error) {
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assert.strictEqual(error.name, 'ProfileDecryptError');
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});
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});
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});
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});
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});
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