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Code Issues Releases Wiki Activity

Read buffer helper

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This commit is contained in:
M66B 2020-09-16 20:30:40 +02:00
parent 1c0101b43e
commit 571ed13f0b
2 changed files with 12 additions and 4 deletions
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6
app/src/main/java/eu/faircode/email/ActivitySetup.java
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@ -717,10 +717,8 @@ public class ActivitySetup extends ActivityBase implements FragmentManager.OnBac
else {
byte[] salt = new byte[16];
byte[] prefix = new byte[16];
if (raw.read(salt) != salt.length)
throw new IOException("Invalid file size");
if (raw.read(prefix) != prefix.length)
throw new IOException("Invalid file size");
Helper.readBuffer(raw, salt);
Helper.readBuffer(raw, prefix);
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1");
KeySpec keySpec = new PBEKeySpec(password.toCharArray(), salt, KEY_ITERATIONS, KEY_LENGTH);

10
app/src/main/java/eu/faircode/email/Helper.java
View file

@ -1124,6 +1124,16 @@ public class Helper {
}
}
public static void readBuffer(InputStream is, byte[] buffer) throws IOException {
int left = buffer.length;
while (left > 0) {
int count = is.read(buffer, buffer.length - left, left);
if (count < 0)
throw new IOException("EOF");
left -= count;
}
}
static void copy(File src, File dst) throws IOException {
try (InputStream in = new FileInputStream(src)) {
try (FileOutputStream out = new FileOutputStream(dst)) {