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support jwk keys to encrypt
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e2dd9b9f77
commit
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@ -62,7 +62,7 @@ export async function encryptAttachment(platform, blob) {
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const iv = await crypto.aes.generateIV();
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const iv = await crypto.aes.generateIV();
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const key = await crypto.aes.generateKey("jwk", 256);
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const key = await crypto.aes.generateKey("jwk", 256);
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const buffer = await blob.readAsBuffer();
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const buffer = await blob.readAsBuffer();
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const ciphertext = await crypto.aes.encryptCTR({key, iv, data: buffer});
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const ciphertext = await crypto.aes.encryptCTR({jwkKey: key, iv, data: buffer});
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const digest = await crypto.digest("SHA-256", ciphertext);
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const digest = await crypto.digest("SHA-256", ciphertext);
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return {
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return {
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blob: platform.createBlob(ciphertext, blob.mimeType),
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blob: platform.createBlob(ciphertext, blob.mimeType),
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@ -199,17 +199,19 @@ class AESCrypto {
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}
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}
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}
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}
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async encryptCTR({key, iv, data}) {
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async encryptCTR({key, jwkKey, iv, data}) {
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const opts = {
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const opts = {
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name: "AES-CTR",
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name: "AES-CTR",
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counter: iv,
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counter: iv,
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length: 64,
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length: 64,
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};
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};
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let aesKey;
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let aesKey;
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const selectedKey = key || jwkKey;
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const format = jwkKey ? "jwk" : "raw";
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try {
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try {
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aesKey = await subtleCryptoResult(this._subtleCrypto.importKey(
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aesKey = await subtleCryptoResult(this._subtleCrypto.importKey(
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"raw",
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format,
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key,
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selectedKey,
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opts,
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opts,
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false,
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false,
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['encrypt'],
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['encrypt'],
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